{"id":3585,"date":"2025-09-30T01:35:28","date_gmt":"2025-09-30T01:35:28","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=3585"},"modified":"2025-09-30T05:59:09","modified_gmt":"2025-09-30T05:59:09","slug":"via-size-backdrill-high-speed-pcb-rules","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/el\/via-size-backdrill-high-speed-pcb-rules\/","title":{"rendered":"\u039c\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 Via, Backdrill &amp; \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2 PCB \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2"},"content":{"rendered":"<p>\u03a4\u03bf via \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ac \u03bc\u03ad\u03c1\u03b7 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03c4\u03c5\u03c0\u03c9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 (PCB) \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ce\u03bd \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd. \u03a3\u03b5 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2, \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 30% \u03ad\u03c9\u03c2 40% \u03c4\u03bf\u03c5 \u03ba\u03cc\u03c3\u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u039c\u03b5 \u03b1\u03c0\u03bb\u03ac \u03bb\u03cc\u03b3\u03b9\u03b1, \u03bf\u03c0\u03bf\u03b9\u03b1\u03b4\u03ae\u03c0\u03bf\u03c4\u03b5 \u03bf\u03c0\u03ae \u03c3\u03b5 \u03ad\u03bd\u03b1 PCB \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bf\u03bd\u03bf\u03bc\u03b1\u03c3\u03c4\u03b5\u03af via. \u0391\u03c0\u03cc \u03c4\u03bf \u03c1\u03cc\u03bb\u03bf \u03c4\u03bf\u03c5, \u03ad\u03bd\u03b1 via \u03ad\u03c7\u03b5\u03b9 \u03b4\u03cd\u03bf \u03ba\u03cd\u03c1\u03b9\u03b5\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b5\u03b9\u03c2: \u03b7 \u03bc\u03af\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03c4\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03b7 \u03ac\u03bb\u03bb\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bd\u03b1 \u03c3\u03c4\u03b5\u03c1\u03b5\u03ce\u03bd\u03b5\u03b9 \u03ae \u03bd\u03b1 \u03b5\u03bd\u03c4\u03bf\u03c0\u03af\u03b6\u03b5\u03b9 \u03b5\u03be\u03b1\u03c1\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1.<\/p>\n\n\n\n<p>\u0391\u03bd \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae\u03c2, \u03c4\u03b1 vias \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03bf\u03bc\u03b1\u03b4\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd \u03c3\u03b5 \u03c4\u03c1\u03b5\u03b9\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2: \u03c4\u03c5\u03c6\u03bb\u03ac via, \u03b8\u03b1\u03bc\u03bc\u03ad\u03bd\u03b1 via \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03bc\u03c0\u03b5\u03c1\u03ae via (through-hole via). \u0388\u03bd\u03b1 \u03c4\u03c5\u03c6\u03bb\u03cc via \u03be\u03b5\u03ba\u03b9\u03bd\u03ac\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03ac\u03bd\u03c9 \u03ae \u03ba\u03ac\u03c4\u03c9 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03c4\u03b5\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1. \u0388\u03c7\u03b5\u03b9 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03b9\u03c7\u03bd\u03ce\u03bd \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2 \u03bc\u03b5 \u03c4\u03b1 \u03af\u03c7\u03bd\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u03a4\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c4\u03c5\u03c6\u03bb\u03bf\u03cd via \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b4\u03b5\u03bd \u03c5\u03c0\u03b5\u03c1\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1 \u03c3\u03b5 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03c4\u03b7\u03c2 \u03bf\u03c0\u03ae\u03c2. \u0388\u03bd\u03b1 \u03b8\u03b1\u03bc\u03bc\u03ad\u03bd\u03bf via \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03bf\u03c0\u03ae \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03b9 \u03bc\u03cc\u03bd\u03bf \u03c4\u03b1 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ac \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1- \u03b4\u03b5\u03bd \u03c6\u03c4\u03ac\u03bd\u03b5\u03b9 \u03c3\u03b5 \u03ba\u03b1\u03bc\u03af\u03b1 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u03a4\u03cc\u03c3\u03bf \u03c4\u03b1 \u03c4\u03c5\u03c6\u03bb\u03ac \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b8\u03b1\u03bc\u03bc\u03ad\u03bd\u03b1 vias \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03cc \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03c0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7, \u03ba\u03b1\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03bf\u03c5\u03bd \u03b1\u03c1\u03ba\u03b5\u03c4\u03ad\u03c2 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03bf\u03bd \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03cc \u03c4\u03bf\u03c5\u03c2. \u039f \u03c4\u03c1\u03af\u03c4\u03bf\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf through via. \u0391\u03c5\u03c4\u03ae \u03b7 \u03bf\u03c0\u03ae \u03b4\u03b9\u03b1\u03c0\u03b5\u03c1\u03bd\u03ac \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03b7 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1. \u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03b3\u03b9\u03b1 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03ae \u03c9\u03c2 \u03bf\u03c0\u03ae \u03c4\u03bf\u03c0\u03bf\u03b8\u03ad\u03c4\u03b7\u03c3\u03b7\u03c2 \u03ae \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03bc\u03bf\u03cd \u03b5\u03be\u03b1\u03c1\u03c4\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bc\u03c0\u03b5\u03c1\u03ae vias \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c5\u03ba\u03bf\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03bf\u03cd\u03bd \u03ba\u03b1\u03b9 \u03c6\u03b8\u03b7\u03bd\u03cc\u03c4\u03b5\u03c1\u03b1, \u03bf\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03c4\u03c5\u03c0\u03c9\u03bc\u03ad\u03bd\u03c9\u03bd \u03ba\u03c5\u03ba\u03bb\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd \u03c4\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b1\u03bd\u03c4\u03af \u03c4\u03c9\u03bd \u03c4\u03c5\u03c6\u03bb\u03ce\u03bd \u03ae \u03b8\u03b1\u03bc\u03bc\u03ad\u03bd\u03c9\u03bd vias. \u03a3\u03c4\u03bf \u03c5\u03c0\u03cc\u03bb\u03bf\u03b9\u03c0\u03bf \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03cc\u03bd\u03c4\u03bf\u03c2 \u03ba\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5, \u03b5\u03ba\u03c4\u03cc\u03c2 \u03b1\u03bd \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac, \u03b7 \u03bb\u03ad\u03be\u03b7 \u201cvia\u201d \u03b1\u03bd\u03b1\u03c6\u03ad\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 through via.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"700\" height=\"287\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Three-types-of-vias.webp\" alt=\"Three types of vias\" class=\"wp-image-3606\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Three-types-of-vias.webp 700w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/Three-types-of-vias-300x123.webp 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u039c\u03ad\u03c3\u03c9 \u03c4\u03b7\u03c2 \u03b4\u03bf\u03bc\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1\u03c4\u03af \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03ad\u03c7\u03b5\u03b9 \u03c3\u03b7\u03bc\u03b1\u03c3\u03af\u03b1<\/h2>\n\n\n\n<p>\u0391\u03c0\u03cc \u03ac\u03c0\u03bf\u03c8\u03b7 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd, \u03ad\u03bd\u03b1 via \u03ad\u03c7\u03b5\u03b9 \u03b4\u03cd\u03bf \u03b2\u03b1\u03c3\u03b9\u03ba\u03ac \u03bc\u03ad\u03c1\u03b7. \u03a4\u03bf \u03ad\u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03ba\u03b5\u03bd\u03c4\u03c1\u03b9\u03ba\u03ae \u03bf\u03c0\u03ae \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2. \u03a4\u03bf \u03ac\u03bb\u03bb\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b1\u03be\u03b9\u03bb\u03b1\u03c1\u03b9\u03bf\u03cd \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7. \u03a4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03b4\u03cd\u03bf \u03c4\u03bc\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03bf\u03c5\u03bd \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 via. \u038c\u03c4\u03b1\u03bd \u03ad\u03bd\u03b1 PCB \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c5\u03c8\u03b7\u03bb\u03ae \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c5\u03c8\u03b7\u03bb\u03ae \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bd \u03c4\u03b1 vias \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c3\u03bf \u03c4\u03bf \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1. \u03a4\u03b1 \u03bc\u03b9\u03ba\u03c1\u03ac vias \u03b1\u03c6\u03ae\u03bd\u03bf\u03c5\u03bd \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03c7\u03ce\u03c1\u03bf \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1. \u0395\u03c0\u03af\u03c3\u03b7\u03c2, \u03c4\u03b1 \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1 vias \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03c4\u03b1\u03b9\u03c1\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03c3\u03b5 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2.<\/p>\n\n\n\n<p>\u038c\u03bc\u03c9\u03c2, \u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2 \u03c4\u03c9\u03bd vias \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2. \u0395\u03c0\u03af\u03c3\u03b7\u03c2, \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03cd\u03bb\u03c9\u03bd \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bc\u03b5\u03b9\u03c9\u03b8\u03b5\u03af \u03c7\u03c9\u03c1\u03af\u03c2 \u03cc\u03c1\u03b9\u03bf. \u03a4\u03bf \u03cc\u03c1\u03b9\u03bf \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b5\u03c2 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03c9\u03c3\u03b7\u03c2. \u038c\u03c3\u03bf \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bf\u03c0\u03ae, \u03c4\u03cc\u03c3\u03bf \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b4\u03b9\u03b1\u03c1\u03ba\u03b5\u03af \u03b7 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03cc\u03c3\u03bf \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03c4\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b5\u03ba\u03ba\u03bb\u03af\u03bd\u03b5\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03ba\u03ad\u03bd\u03c4\u03c1\u03bf. \u0395\u03c0\u03af\u03c3\u03b7\u03c2, \u03cc\u03c4\u03b1\u03bd \u03c4\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03bf\u03c0\u03ae\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03ad\u03be\u03b9 \u03c6\u03bf\u03c1\u03ad\u03c2 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03c4\u03bf\u03c5 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c4\u03bf\u03af\u03c7\u03c9\u03bc\u03b1 \u03c4\u03b7\u03c2 \u03bf\u03c0\u03ae\u03c2 \u03b8\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03bf\u03bc\u03bf\u03b9\u03cc\u03bc\u03bf\u03c1\u03c6\u03b7 \u03b5\u03c0\u03ad\u03bd\u03b4\u03c5\u03c3\u03b7 \u03c7\u03b1\u03bb\u03ba\u03bf\u03cd. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03ad\u03bd\u03b1 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03cc PCB \u03ad\u03be\u03b9 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03ad\u03c7\u03b5\u03b9 \u03c0\u03ac\u03c7\u03bf\u03c2 (\u03b2\u03ac\u03b8\u03bf\u03c2 \u03bf\u03c0\u03ae\u03c2) \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 50 mil. \u03a5\u03c0\u03cc \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2, \u03c4\u03bf \u03b5\u03c1\u03b3\u03bf\u03c3\u03c4\u03ac\u03c3\u03b9\u03bf PCB \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bd\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ae\u03c3\u03b5\u03b9 \u03bc\u03b5 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 8 mil.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03bd\u03cc\u03c2 via<\/h2>\n\n\n\n<p>\u0388\u03bd\u03b1 via \u03ad\u03c7\u03b5\u03b9 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7 \u03b3\u03b7. \u0391\u03bd \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03bf\u03c0\u03ae\u03c2 \u03b1\u03c0\u03bf\u03bc\u03ac\u03ba\u03c1\u03c5\u03bd\u03c3\u03b7\u03c2 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 D2, \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03be\u03b9\u03bb\u03b1\u03c1\u03b9\u03bf\u03cd \u03c4\u03bf\u03c5 via \u03b5\u03af\u03bd\u03b1\u03b9 D1, \u03c4\u03bf \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 PCB \u03b5\u03af\u03bd\u03b1\u03b9 T \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03ae \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ac \u03c4\u03bf\u03c5 \u03c5\u03c0\u03bf\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5, \u03c4\u03cc\u03c4\u03b5 \u03b7 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 via \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>C = 1,41 \u00d7 \u03b5 \u00d7 T \u00d7 D1 \/ (D2 - D1)\n<\/code><\/pre>\n\n\n\n<p>\u0391\u03c5\u03c4\u03cc\u03c2 \u03bf \u03c4\u03cd\u03c0\u03bf\u03c2 \u03b4\u03af\u03bd\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03b5\u03ba\u03c4\u03af\u03bc\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5. \u0397 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03ad\u03c4\u03c3\u03b9 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03c5\u03ba\u03bb\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n\n\n\n<p>\u0391\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1. \u0391\u03c2 \u03c5\u03c0\u03bf\u03b8\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 50 mil. \u0397 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 via \u03b5\u03af\u03bd\u03b1\u03b9 10 mil \u03ba\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 pad \u03b5\u03af\u03bd\u03b1\u03b9 20 mil. \u0397 \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03bf\u03c5 pad \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae\u03c2 \u03c7\u03b1\u03bb\u03ba\u03bf\u03cd \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 32 mil. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c4\u03cd\u03c0\u03bf \u03ba\u03b1\u03b9 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5 = 4,4, \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>C = 1,41 \u00d7 4,4 \u00d7 0,050 \u00d7 0,020 \/ (0,032 - 0,020) \u2248 0,517 pF\n<\/code><\/pre>\n\n\n\n<p>\u0391\u03c5\u03c4\u03ae \u03b7 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b1\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5. \u0395\u03ac\u03bd \u03b7 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 55 \u03a9, \u03b7 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c3\u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5 10%-90% \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03ae \u03c4\u03b7 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>T10-90 = 2,2 \u00d7 C \u00d7 (Z0 \/ 2) \u2248 2,2 \u00d7 0,517 \u00d7 (55 \/ 2) \u2248 31,28 ps\n<\/code><\/pre>\n\n\n\n<p>\u0391\u03c0\u03cc \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03c1\u03b9\u03b8\u03bc\u03bf\u03cd\u03c2 \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03b7 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03bc\u03b5\u03bc\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03bf\u03c5 via \u03ad\u03c7\u03b5\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ae \u03bc\u03cc\u03bd\u03bf \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c3\u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5. \u0391\u03bb\u03bb\u03ac \u03b1\u03bd \u03ad\u03bd\u03b1 \u03c3\u03ae\u03bc\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c7\u03af\u03b6\u03b5\u03b9 \u03c0\u03bf\u03bb\u03bb\u03ac vias \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2, \u03b7 \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03b8\u03b1 \u03b1\u03b8\u03c1\u03bf\u03b9\u03c3\u03c4\u03b5\u03af. \u03a4\u03cc\u03c4\u03b5 \u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ae\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c4\u03bf \u03c3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03b5\u03bd\u03cc\u03c2 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5<\/h2>\n\n\n\n<p>\u039c\u03b1\u03b6\u03af \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1, \u03ad\u03bd\u03b1 via \u03ad\u03c7\u03b5\u03b9 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae. \u03a3\u03c4\u03b7\u03bd \u03c8\u03b7\u03c6\u03b9\u03b1\u03ba\u03ae \u03c3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2, \u03b7 \u03b2\u03bb\u03ac\u03b2\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03bf\u03c5 via \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03b5\u03ba\u03b5\u03af\u03bd\u03b7 \u03c4\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2. \u0397 \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c3\u03b5\u03b9\u03c1\u03ac\u03c2 \u03c4\u03bf\u03c5 via \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03ce\u03bd \u03c0\u03b1\u03c1\u03ac\u03ba\u03b1\u03bc\u03c8\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c6\u03b9\u03bb\u03c4\u03c1\u03b1\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2.<\/p>\n\n\n\n<p>\u0388\u03bd\u03b1\u03c2 \u03b1\u03c0\u03bb\u03cc\u03c2 \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c4\u03cd\u03c0\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03bc\u03ad\u03c3\u03c9 \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>L = 5,08 \u00d7 h \u00d7 [ ln(4h \/ d) + 1 ]\n<\/code><\/pre>\n\n\n\n<p>\u03cc\u03c0\u03bf\u03c5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5,<\/li>\n\n\n\n<li>h \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5,<\/li>\n\n\n\n<li>d \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03ba\u03b5\u03bd\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd.<\/li>\n<\/ul>\n\n\n\n<p>\u0391\u03c0\u03cc \u03c4\u03bf\u03bd \u03c4\u03cd\u03c0\u03bf \u03b2\u03bb\u03ad\u03c0\u03bf\u03c5\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03cd\u03bb\u03c9\u03bd \u03ad\u03c7\u03b5\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ae \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae, \u03b5\u03bd\u03ce \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03cd\u03bb\u03c9\u03bd \u03ad\u03c7\u03b5\u03b9 \u03c4\u03b7 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03af\u03b4\u03c1\u03b1\u03c3\u03b7. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ce\u03bd\u03c4\u03b1\u03c2 \u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1 \u03bc\u03b5 h = 0,050 \u03ba\u03b1\u03b9 d = 0,010, \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>L = 5,08 \u00d7 0,050 \u00d7 [ ln(4 \u00d7 0,050 \/ 0,010) + 1 ] \u2248 1,015 nH\n<\/code><\/pre>\n\n\n\n<p>\u0395\u03ac\u03bd \u03bf \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 1 ns, \u03b7 \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03b4\u03c1\u03b1\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>XL = \u03c0 \u00d7 L \/ T10-90 \u2248 \u03c0 \u00d7 1,015 nH \/ 1 ns \u2248 3,19 \u03a9\n<\/code><\/pre>\n\n\n\n<p>\u038c\u03c4\u03b1\u03bd \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03c1\u03b5\u03cd\u03bc\u03b1 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c3\u03c5\u03c7\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03bc\u03b9\u03b1 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03b1\u03c5\u03c4\u03bf\u03cd \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03b3\u03bd\u03bf\u03b7\u03b8\u03b5\u03af. \u03a3\u03b7\u03bc\u03b5\u03b9\u03ce\u03c3\u03c4\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03cc\u03c4\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03ae\u03c2 \u03c0\u03b1\u03c1\u03ac\u03ba\u03b1\u03bc\u03c8\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b4\u03cd\u03bf vias. \u0391\u03c5\u03c4\u03cc \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03bf\u03c5 via \u03b8\u03b1 \u03b4\u03b9\u03c0\u03bb\u03b1\u03c3\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03bc\u03bf\u03bd\u03bf\u03c0\u03ac\u03c4\u03b9 \u03c0\u03b1\u03c1\u03ac\u03ba\u03b1\u03bc\u03c8\u03b7\u03c2.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03b9 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc \u03c5\u03c8\u03b7\u03bb\u03ce\u03bd \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd<\/h2>\n\n\n\n<p>\u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03b1\u03bd\u03ac\u03bb\u03c5\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c0\u03b1\u03c1\u03b1\u03c3\u03af\u03c4\u03c9\u03bd \u03bc\u03ad\u03c3\u03c9, \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bc\u03b5 \u03bd\u03b1 \u03b4\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03ad\u03bd\u03b1 \u03c6\u03b1\u03b9\u03bd\u03bf\u03bc\u03b5\u03bd\u03b9\u03ba\u03ac \u03b1\u03c0\u03bb\u03cc via \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03b1\u03c1\u03bd\u03b7\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2. \u0393\u03b9\u03b1 \u03c4\u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ce\u03bd \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03b2\u03bb\u03b7\u03bc\u03ac\u03c4\u03c9\u03bd, \u03bf\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03ad\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03bf\u03c5\u03bd \u03c4\u03b1 \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b1.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u0395\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2<\/strong><br>\u03a3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af\u03c4\u03b5 \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03b3\u03b9\u03b1 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 PCB \u03bc\u03bf\u03bd\u03ac\u03b4\u03c9\u03bd \u03bc\u03bd\u03ae\u03bc\u03b7\u03c2 \u03bc\u03b5 6 \u03ad\u03c9\u03c2 10 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1, \u03b7 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03b5\u03bd\u03cc\u03c2 via 10\/20 mil (drill\/pad) \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b1\u03bb\u03ac. \u0393\u03b9\u03b1 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 vias 8\/18 mil. \u03a3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03c1\u03ad\u03c7\u03bf\u03c5\u03c3\u03b1 \u03c4\u03b5\u03c7\u03bd\u03bf\u03bb\u03bf\u03b3\u03af\u03b1, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03b5\u03c4\u03b5 vias \u03bc\u03b9\u03ba\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03cc \u03b1\u03c5\u03c4\u03cc. \u0393\u03b9\u03b1 \u03c4\u03b1 vias \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03ae \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c4\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7.<\/li>\n\n\n\n<li><strong>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b7 \u03c3\u03b1\u03bd\u03af\u03b4\u03b1 \u03b1\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd<\/strong><br>\u038c\u03c0\u03c9\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03bf\u03b9 \u03c4\u03cd\u03c0\u03bf\u03b9, \u03bc\u03b9\u03b1 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b7 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 \u03c3\u03c5\u03bc\u03b2\u03ac\u03bb\u03bb\u03b5\u03b9 \u03c3\u03c4\u03b7 \u03bc\u03b5\u03af\u03c9\u03c3\u03b7 \u03c4\u03cc\u03c3\u03bf \u03c4\u03b7\u03c2 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2.<\/li>\n\n\n\n<li><strong>\u0391\u03c0\u03bf\u03c6\u03c5\u03b3\u03ae \u03c0\u03b5\u03c1\u03b9\u03c4\u03c4\u03ce\u03bd \u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong><br>\u03a0\u03c1\u03bf\u03c3\u03c0\u03b1\u03b8\u03ae\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03bf\u03b3\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b1\u03bb\u03bb\u03ac\u03be\u03b5\u03c4\u03b5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1. \u039c\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03cc\u03c3\u03bf \u03c4\u03bf \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03b1 vias.<\/li>\n\n\n\n<li><strong>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03ba\u03c1\u03bf\u03b4\u03ad\u03ba\u03c4\u03b5\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03b1 vias<\/strong><br>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03ba\u03c1\u03bf\u03b4\u03ad\u03ba\u03c4\u03b5\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03b1 vias \u03c4\u03bf\u03c5\u03c2. \u0394\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03b7\u03c2 \u03b4\u03b9\u03ac\u03b2\u03b1\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03c5 \u03b1\u03ba\u03c1\u03bf\u03b4\u03ad\u03ba\u03c4\u03b7 \u03cc\u03c3\u03bf \u03c4\u03bf \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03c3\u03c5\u03bd\u03c4\u03bf\u03bc\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03bf\u03b9 \u03bc\u03b1\u03ba\u03c1\u03b9\u03ad\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03b1\u03c5\u03be\u03ac\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03c5\u03c4\u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c0\u03b1\u03c7\u03cd\u03c4\u03b5\u03c1\u03b1 \u03af\u03c7\u03bd\u03b7 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c4\u03b7 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7.<\/li>\n\n\n\n<li><strong>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae\u03c2 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong><br>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b1\u03bb\u03bb\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1. \u0391\u03c5\u03c4\u03cc \u03b4\u03af\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c3\u03ae\u03bc\u03b1 \u03bc\u03b9\u03b1 \u03ba\u03bf\u03bd\u03c4\u03b9\u03bd\u03ae \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2. \u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03b5\u03c4\u03b5 \u03c0\u03bf\u03bb\u03bb\u03ac \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd vias \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2, \u03b5\u03ac\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9. \u0391\u03bb\u03bb\u03ac \u03bd\u03b1 \u03b5\u03af\u03c3\u03c4\u03b5 \u03b5\u03c5\u03ad\u03bb\u03b9\u03ba\u03c4\u03bf\u03b9. \u03a4\u03bf \u03bc\u03bf\u03bd\u03c4\u03ad\u03bb\u03bf via \u03c0\u03bf\u03c5 \u03c3\u03c5\u03b6\u03b7\u03c4\u03ae\u03b8\u03b7\u03ba\u03b5 \u03c0\u03c1\u03bf\u03b7\u03b3\u03bf\u03c5\u03bc\u03ad\u03bd\u03c9\u03c2 \u03c5\u03c0\u03ad\u03b8\u03b5\u03c3\u03b5 \u03ad\u03bd\u03b1 pad \u03c3\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1. \u03a3\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03ae \u03bd\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 pads \u03c3\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ac \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1. \u038c\u03c4\u03b1\u03bd \u03b7 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd via \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c5\u03c8\u03b7\u03bb\u03ae, \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1 pads \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c7\u03ac\u03bb\u03ba\u03b9\u03bd\u03bf \u03c7\u03c5\u03c4\u03cc \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03c3\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03c3\u03c0\u03b1\u03c3\u03bc\u03ad\u03bd\u03bf \u03b2\u03c1\u03cc\u03c7\u03bf. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf \u03b4\u03b9\u03bf\u03c1\u03b8\u03ce\u03c3\u03b5\u03c4\u03b5 \u03b1\u03c5\u03c4\u03cc \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03c4\u03b5 \u03ba\u03ac\u03c0\u03bf\u03b9\u03b1 vias \u03ae \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03c9\u03bd pad \u03c3\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc\u03c2 \u03bc\u03ad\u03c3\u03c9 \u03b3\u03b9\u03b1 PCB \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 - \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03c1\u03bf\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2<\/h2>\n\n\n\n<p>\u03a4\u03b1 PCB \u03c5\u03c8\u03b7\u03bb\u03ce\u03bd \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ac \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03b1 vias \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1 \u03c3\u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc. \u0388\u03bd\u03b1 via \u03c3\u03b5 \u03ad\u03bd\u03b1 PCB \u03ad\u03c7\u03b5\u03b9 \u03c4\u03c1\u03af\u03b1 \u03bc\u03ad\u03c1\u03b7: \u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c4\u03b7\u03bd \u03bf\u03c0\u03ae, \u03c4\u03bf pad \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03bf\u03c0\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03b6\u03ce\u03bd\u03b7 \u03b1\u03c0\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 (\u03c4\u03bf \u03ba\u03b5\u03bd\u03cc \u03c3\u03c4\u03b1 \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03b1 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03b3\u03cd\u03c1\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf via).<\/p>\n\n\n\n<p>\u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ac \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u03b3\u03b9\u03b1 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03c0\u03bf\u03bb\u03bb\u03b1\u03c0\u03bb\u03ce\u03bd \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u039c\u03ad\u03c3\u03c9 \u03c3\u03c5\u03c3\u03c4\u03ac\u03c3\u03b5\u03c9\u03bd \u03bc\u03b5\u03b3\u03ad\u03b8\u03bf\u03c5\u03c2<\/strong><br>\u0393\u03b9\u03b1 \u03b3\u03b5\u03bd\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bf\u03bb\u03c5\u03c3\u03c4\u03c1\u03c9\u03bc\u03b1\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03bc\u03ad\u03c4\u03c1\u03b9\u03b1 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1, \u03ad\u03bd\u03b1 via \u03bc\u03b5 \u03b4\u03b9\u03b1\u03c3\u03c4\u03ac\u03c3\u03b5\u03b9\u03c2 0,25 mm \/ 0,51 mm \/ 0,91 mm (\u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \/ pad \/ \u03b1\u03c0\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2) \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03b1\u03bb\u03ae \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae. \u0393\u03b9\u03b1 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2, \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03bf\u03c5\u03bd \u03c4\u03b1 0,20 mm \/ 0,46 mm \/ 0,86 mm. \u03a3\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c3\u03c7\u03ad\u03b4\u03b9\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd \u03bc\u03b7 \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03c9\u03bc\u03ad\u03bd\u03b1 vias. \u0393\u03b9\u03b1 vias \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2 \u03ae \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2, \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03c4\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7.<\/li>\n\n\n\n<li><strong>\u0396\u03ce\u03bd\u03b7 \u03b1\u03c0\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2<\/strong><br>\u038c\u03c3\u03bf \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae \u03b1\u03c0\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7\u03c2 \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2, \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf. \u0395\u03be\u03b5\u03c4\u03ac\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03cd\u03bb\u03c9\u03bd \u03c3\u03c4\u03bf \u03b1\u03b5\u03c1\u03bf\u03c0\u03bb\u03ac\u03bd\u03bf. \u03a3\u03c5\u03c7\u03bd\u03ac \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03ba\u03b1\u03c4\u03b5\u03c5\u03b8\u03c5\u03bd\u03c4\u03ae\u03c1\u03b9\u03b1 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ae \u03c4\u03bf D1 = D2 + 0,41, \u03c0\u03bf\u03c5 \u03c3\u03b7\u03bc\u03b1\u03af\u03bd\u03b5\u03b9 \u03cc\u03c4\u03b9 \u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03bc\u03b1\u03be\u03b9\u03bb\u03b1\u03c1\u03b9\u03bf\u03cd \u03b9\u03c3\u03bf\u03cd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03b4\u03b9\u03b1\u03ba\u03ad\u03bd\u03c9\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03c3\u03c5\u03bd 0,41 mm. \u0391\u03c5\u03c4\u03cc \u03b2\u03bf\u03b7\u03b8\u03ac\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b7\u03b8\u03b5\u03af \u03c4\u03bf \u03b4\u03b9\u03ac\u03ba\u03b5\u03bd\u03bf \u03c4\u03bf\u03c5 \u03b5\u03c0\u03b9\u03c0\u03ad\u03b4\u03bf\u03c5 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf.<\/li>\n\n\n\n<li><strong>\u0395\u03bb\u03b1\u03c7\u03b9\u03c3\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ce\u03bd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong><br>\u039c\u03b5\u03b9\u03ce\u03c3\u03c4\u03b5 \u03c4\u03b1 vias \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c4\u03c4\u03ad\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7 \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n\n\n\n<li><strong>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c3\u03b1\u03bd\u03af\u03b4\u03b5\u03c2<\/strong><br>\u039f\u03b9 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03cc\u03c3\u03bf \u03c4\u03b7 \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03c9\u03bd vias.<\/li>\n\n\n\n<li><strong>\u03a3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c5\u03c1\u03b5\u03af\u03b5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c1\u03b5\u03cd\u03bc\u03b1\u03c4\u03bf\u03c2\/\u03b3\u03b7\u03c2<\/strong><br>\u0394\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf \u03ba\u03b1\u03bb\u03ce\u03b4\u03b9\u03bf \u03b1\u03c0\u03cc \u03c4\u03bf \u03ba\u03b1\u03bb\u03ce\u03b4\u03b9\u03bf \u03bc\u03ad\u03c3\u03c9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03ae \u03c4\u03b7\u03bd \u03b1\u03ba\u03af\u03b4\u03b1 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03b2\u03c1\u03b1\u03c7\u03c5\u03ba\u03c5\u03ba\u03bb\u03c9\u03bc\u03ad\u03bd\u03bf. \u039a\u03ac\u03bd\u03c4\u03b5 \u03c4\u03b1 \u03af\u03c7\u03bd\u03b7 \u03cc\u03c3\u03bf \u03c4\u03bf \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd \u03b5\u03c5\u03c1\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1 \u03ae \u03c4\u03b7 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03b9\u03ba\u03ae \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7.<\/li>\n\n\n\n<li><strong>\u03a3\u03c5\u03c1\u03c1\u03b1\u03c6\u03ae \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03c9\u03bd \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 vias \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae\u03c2 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2<\/strong><br>\u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03c4\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 \u03c3\u03b7\u03bc\u03b5\u03af\u03b1 \u03cc\u03c0\u03bf\u03c5 \u03ad\u03bd\u03b1 \u03c3\u03ae\u03bc\u03b1 \u03bc\u03b5\u03c4\u03b1\u03ba\u03b9\u03bd\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c3\u03c4\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd. \u0391\u03c5\u03c4\u03cc \u03b4\u03af\u03bd\u03b5\u03b9 \u03c3\u03c4\u03bf \u03c3\u03ae\u03bc\u03b1 \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2.<\/li>\n<\/ol>\n\n\n\n<p>\u03a3\u03b7\u03bc\u03b5\u03b9\u03ce\u03c3\u03c4\u03b5 \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1\u03c2 \u03ba\u03cd\u03c1\u03b9\u03bf\u03c2 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03cd\u03bb\u03bf\u03c5. \u0393\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03bc\u03c0\u03b5\u03c1\u03b5\u03af\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03c4\u03bf\u03c5 \u03ac\u03bd\u03c9 \u03ba\u03b1\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2, \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03bf\u03c0\u03ae\u03c2 \u03b9\u03c3\u03bf\u03cd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03bb\u03ae\u03c1\u03b5\u03c2 \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u039a\u03b1\u03b8\u03ce\u03c2 \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bf \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd, \u03c4\u03bf \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c5\u03c0\u03b5\u03c1\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03c4\u03b1 5 mm. \u03a3\u03c4\u03b7 \u03c3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7 \u03c5\u03c8\u03b7\u03bb\u03ce\u03bd \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd, \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03c9\u03bd via \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc 2,0 mm \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03b9\u03c9\u03b8\u03bf\u03cd\u03bd \u03c4\u03b1 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03c3\u03c7\u03b5\u03c4\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b1 via. \u0393\u03b9\u03b1 \u03bc\u03ae\u03ba\u03b7 via \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03cc 2,0 mm, \u03b7 \u03b1\u03cd\u03be\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5 \u03c4\u03bf\u03c5 via \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03bf\u03b7\u03b8\u03ae\u03c3\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c4\u03b7\u03c2 \u03b1\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2. \u038c\u03c4\u03b1\u03bd \u03c4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 via \u03b5\u03af\u03bd\u03b1\u03b9 1,0 mm \u03ae \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03bf, \u03b7 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 via \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 0,20 mm \u03ad\u03c9\u03c2 0,30 mm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a4\u03c1\u03cd\u03c0\u03b7\u03bc\u03b1 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03c3\u03c4\u03b7\u03bd \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03ae PCB<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf backdrilling;<\/h3>\n\n\n\n<p>\u03a4\u03bf backdrilling \u03b5\u03af\u03bd\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03b9\u03b4\u03b9\u03ba\u03cc \u03b2\u03ae\u03bc\u03b1 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03b2\u03b1\u03b8\u03b9\u03ad\u03c2 \u03bf\u03c0\u03ad\u03c2. \u0393\u03b9\u03b1 \u03c0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1, \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03bc\u03b9\u03b1\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 12 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b8\u03ad\u03bb\u03bf\u03c5\u03bc\u03b5 \u03bd\u03b1 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 1 \u03bc\u03b5 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 9. \u03a3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03c4\u03c1\u03c5\u03c0\u03ac\u03bc\u03b5 \u03bc\u03b9\u03b1 \u03b4\u03b9\u03b1\u03bc\u03c0\u03b5\u03c1\u03ae \u03bf\u03c0\u03ae \u03bc\u03af\u03b1 \u03c6\u03bf\u03c1\u03ac \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03bf\u03cd\u03bc\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bb\u03ac\u03ba\u03b1. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b4\u03b9\u03ac\u03b2\u03b1\u03c3\u03b7 \u03b5\u03ba\u03c4\u03b5\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 1 \u03c3\u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 12, \u03b1\u03bb\u03bb\u03ac \u03c7\u03c1\u03b5\u03b9\u03b1\u03b6\u03cc\u03bc\u03b1\u03c3\u03c4\u03b5 \u03bc\u03cc\u03bd\u03bf \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03b7\u03c2 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7\u03c2 1 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7\u03c2 9. \u03a4\u03bf \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd \u03c4\u03bc\u03ae\u03bc\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 10 \u03ad\u03c9\u03c2 \u03c4\u03b7 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b7 12 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03c3\u03b1\u03bd \u03c3\u03c4\u03ad\u03bb\u03b5\u03c7\u03bf\u03c2. \u0391\u03c5\u03c4\u03cc \u03c4\u03bf stub \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ad\u03c2 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03c0\u03c1\u03bf\u03b2\u03bb\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b1\u03c2. \u0393\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03bf\u03c5\u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd \u03ba\u03bf\u03bb\u03bf\u03b2\u03cc, \u03c4\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bc\u03b5 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03c0\u03af\u03c3\u03c9 \u03c0\u03bb\u03b5\u03c5\u03c1\u03ac - \u03ad\u03bd\u03b1 \u03b4\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf \u03b2\u03ae\u03bc\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2. \u0391\u03c5\u03c4\u03cc \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7. \u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03ac\u03be\u03b7, \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b4\u03b5\u03bd \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b5 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c4\u03b5\u03bb\u03b5\u03c5\u03c4\u03b1\u03af\u03bf \u03ba\u03bf\u03bc\u03bc\u03ac\u03c4\u03b9, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03b3\u03b5\u03bd\u03ad\u03c3\u03c4\u03b5\u03c1\u03b1 \u03b2\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03bf\u03cd\u03bd \u03bb\u03af\u03b3\u03bf \u03c7\u03b1\u03bb\u03ba\u03cc \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03ad\u03c7\u03b5\u03b9 \u03ba\u03c9\u03bd\u03b9\u03ba\u03cc \u03ac\u03ba\u03c1\u03bf. \u0388\u03c4\u03c3\u03b9, \u03c4\u03bf \u03b5\u03c1\u03b3\u03bf\u03c3\u03c4\u03ac\u03c3\u03b9\u03bf \u03b1\u03c6\u03ae\u03bd\u03b5\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ad\u03bd\u03b1 \u03c0\u03bf\u03bb\u03cd \u03bc\u03b9\u03ba\u03c1\u03cc \u03b1\u03c0\u03bf\u03ba\u03bf\u03c1\u03cd\u03c6\u03c9\u03bc\u03b1. \u03a4\u03bf \u03b5\u03bd\u03b1\u03c0\u03bf\u03bc\u03b5\u03af\u03bd\u03b1\u03bd \u03bc\u03ae\u03ba\u03bf\u03c2 \u03b1\u03c0\u03bf\u03bb\u03ae\u03bc\u03bc\u03b1\u03c4\u03bf\u03c2 \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c4\u03b9\u03bc\u03ae \u0392 \u03ba\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03ba\u03b1\u03bb\u03ae \u03c4\u03b9\u03bc\u03ae \u0392 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd 50 \u03bcm \u03ba\u03b1\u03b9 150 \u03bcm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"500\" height=\"349\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilling.webp\" alt=\"backdrilling\" class=\"wp-image-3605\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilling.webp 500w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilling-300x209.webp 300w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u0393\u03b9\u03b1\u03c4\u03af \u03bd\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ae\u03c3\u03b5\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03af\u03c3\u03c9 \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9;<\/h3>\n\n\n\n<p>\u0397 \u03bf\u03c0\u03b9\u03c3\u03b8\u03bf\u03b3\u03b5\u03c9\u03c4\u03c1\u03ae\u03c3\u03b7 \u03c0\u03b1\u03c1\u03ad\u03c7\u03b5\u03b9 \u03b4\u03b9\u03ac\u03c6\u03bf\u03c1\u03b1 \u03c0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u039c\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b8\u03cc\u03c1\u03c5\u03b2\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b5\u03bc\u03b2\u03bf\u03bb\u03ad\u03c2.<\/li>\n\n\n\n<li>\u0392\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n\n\n\n<li>\u039c\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03c4\u03bf\u03c0\u03b9\u03ba\u03ae \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ae \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2 \u03bb\u03b5\u03c0\u03c4\u03cc\u03c4\u03b5\u03c1\u03b7.<\/li>\n\n\n\n<li>\u039c\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03ac\u03b3\u03ba\u03b7 \u03b3\u03b9\u03b1 \u03b8\u03b1\u03bc\u03bc\u03ad\u03bd\u03b1 \u03ae \u03c4\u03c5\u03c6\u03bb\u03ac vias, \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03c2 \u03c4\u03b7\u03bd \u03c0\u03bf\u03bb\u03c5\u03c0\u03bb\u03bf\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u03a4\u03b9 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf backdrilling;<\/h3>\n\n\n\n<p>\u039c\u03b5 \u03c4\u03bf backdrilling \u03b1\u03c6\u03b1\u03b9\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c4\u03bc\u03ae\u03bc\u03b1 via \u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03b2\u03bf\u03b7\u03b8\u03ac \u03c3\u03c4\u03b7 \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7 \u03ae \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u0391\u03c5\u03c4\u03cc \u03b1\u03c0\u03bf\u03c4\u03c1\u03ad\u03c0\u03b5\u03b9 \u03c4\u03b9\u03c2 \u03b1\u03bd\u03b1\u03ba\u03bb\u03ac\u03c3\u03b5\u03b9\u03c2, \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c0\u03bf\u03c1\u03ac, \u03c4\u03b7\u03bd \u03ba\u03b1\u03b8\u03c5\u03c3\u03c4\u03ad\u03c1\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b1 \u03c6\u03b1\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03bf\u03cd\u03bd \u201c\u03c0\u03b1\u03c1\u03b1\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7\u201d \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2. \u039f\u03b9 \u03ad\u03c1\u03b5\u03c5\u03bd\u03b5\u03c2 \u03b4\u03b5\u03af\u03c7\u03bd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03b5\u03ba\u03c4\u03cc\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03cc, \u03c4\u03bf \u03c5\u03bb\u03b9\u03ba\u03cc \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2, \u03c4\u03b9\u03c2 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac\u03c2, \u03c4\u03bf\u03c5\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03bc\u03bf\u03c5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c4\u03c3\u03b9\u03c0, \u03c4\u03b1 through vias \u03ad\u03c7\u03bf\u03c5\u03bd \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf \u03b1\u03bd\u03c4\u03af\u03ba\u03c4\u03c5\u03c0\u03bf \u03c3\u03c4\u03b7\u03bd \u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u0391\u03c1\u03c7\u03ae \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 backdrilling<\/h3>\n\n\n\n<p>\u0397 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03ad\u03bd\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03c0\u03bf\u03c5 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b1\u03bd\u03af\u03c7\u03bd\u03b5\u03c5\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u038c\u03c4\u03b1\u03bd \u03b7 \u03ac\u03ba\u03c1\u03b7 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd \u03b1\u03b3\u03b3\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf \u03c6\u03cd\u03bb\u03bb\u03bf \u03c7\u03b1\u03bb\u03ba\u03bf\u03cd \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2, \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b9\u03ba\u03c1\u03bf\u03c1\u03b5\u03cd\u03bc\u03b1. \u0391\u03c5\u03c4\u03cc \u03c4\u03bf \u03c1\u03b5\u03cd\u03bc\u03b1 \u03bb\u03ad\u03b5\u03b9 \u03c3\u03c4\u03bf \u03bc\u03b7\u03c7\u03ac\u03bd\u03b7\u03bc\u03b1 \u03c4\u03bf \u03cd\u03c8\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u03a3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03c4\u03bf \u03bc\u03b7\u03c7\u03ac\u03bd\u03b7\u03bc\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ac \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf \u03ba\u03b1\u03b8\u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf \u03b2\u03ac\u03b8\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1\u03bc\u03b1\u03c4\u03ac.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u0392\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1\u03c2 \u03b1\u03bd\u03cc\u03c1\u03c5\u03be\u03b7\u03c2<\/h3>\n\n\n\n<p>\u039c\u03b9\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ae \u03b4\u03b9\u03b1\u03b4\u03b9\u03ba\u03b1\u03c3\u03af\u03b1 \u03b1\u03bd\u03cc\u03c1\u03c5\u03be\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03ad\u03c7\u03b5\u03b9 \u03c9\u03c2 \u03b5\u03be\u03ae\u03c2:<\/p>\n\n\n\n<p>a. \u03a0\u03c1\u03bf\u03bc\u03b7\u03b8\u03b5\u03cd\u03c3\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 PCB \u03bc\u03b5 \u03bf\u03c0\u03ad\u03c2 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03b2\u03ae\u03bc\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 (\u03c4\u03b7 \u03b4\u03b9\u03b1\u03bc\u03c0\u03b5\u03c1\u03ae \u03bf\u03c0\u03ae).<br>b. \u039c\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03c0\u03c1\u03ce\u03c4\u03b7 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7, \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c0\u03bb\u03ac\u03ba\u03b5\u03c2 \u03c3\u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2. \u03a0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03c9\u03c3\u03b7, \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c3\u03c4\u03b5\u03b3\u03bd\u03cc \u03c6\u03b9\u03bb\u03bc \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03c0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03c4\u03c9\u03bd \u03bf\u03c0\u03ce\u03bd \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2, \u03cc\u03c0\u03c9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9.<br>c. \u03a6\u03c4\u03b9\u03ac\u03be\u03c4\u03b5 \u03c4\u03bf \u03bc\u03bf\u03c4\u03af\u03b2\u03bf \u03c4\u03bf\u03c5 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03c9\u03bc\u03ad\u03bd\u03b7 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1.<br>d. \u039a\u03ac\u03bd\u03c4\u03b5 \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03c9\u03c3\u03b7 \u03bc\u03bf\u03c4\u03af\u03b2\u03bf\u03c5. \u03a0\u03c1\u03b9\u03bd \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03ac\u03bb\u03bb\u03c9\u03c3\u03b7 \u03bc\u03bf\u03c4\u03af\u03b2\u03bf\u03c5, \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b5\u03af\u03c4\u03b5 \u03ba\u03b1\u03b9 \u03c0\u03ac\u03bb\u03b9 \u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03bc\u03b5 \u03be\u03b7\u03c1\u03cc \u03c6\u03b9\u03bb\u03bc, \u03b5\u03ac\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9.<br>e. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae\u03c2 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9. \u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c4\u03c1\u03c5\u03c0\u03ae\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03b5\u03c0\u03b9\u03bc\u03b5\u03c4\u03b1\u03bb\u03bb\u03c9\u03bc\u03ad\u03bd\u03b1 \u03c4\u03bc\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7.<br>f. \u039c\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03bd\u03b1\u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7, \u03c0\u03bb\u03cd\u03bd\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03c0\u03b1\u03bd\u03b1\u03b4\u03b9\u03b1\u03c4\u03c1\u03b7\u03b8\u03b5\u03af \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03bc\u03b1\u03ba\u03c1\u03cd\u03bd\u03b5\u03c4\u03b5 \u03c4\u03c5\u03c7\u03cc\u03bd \u03c3\u03ba\u03cc\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03c5\u03c0\u03bf\u03bb\u03b5\u03af\u03bc\u03bc\u03b1\u03c4\u03b1 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c4\u03c9\u03bd \u03c0\u03bb\u03b1\u03ba\u03ce\u03bd \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7<\/h3>\n\n\n\n<p>\u03a4\u03b1 \u03c4\u03c5\u03c0\u03b9\u03ba\u03ac \u03c4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u039f\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ac\u03ba\u03b1\u03bc\u03c0\u03c4\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2.<\/li>\n\n\n\n<li>\u039f \u03b1\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 \u03c4\u03c9\u03bd \u03c3\u03c4\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03c5\u03bc\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03b1\u03c0\u03cc 8 \u03ad\u03c9\u03c2 50 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1.<\/li>\n\n\n\n<li>\u03a4\u03bf \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03ba\u03ac\u03c6\u03bf\u03c5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac 2,5 mm \u03ae \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf.<\/li>\n\n\n\n<li>\u039f \u03bb\u03cc\u03b3\u03bf\u03c2 \u03c0\u03ac\u03c7\u03bf\u03c5\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf\u03c2.<\/li>\n\n\n\n<li>\u03a4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c4\u03c9\u03bd \u03c0\u03b9\u03bd\u03ac\u03ba\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1.<\/li>\n\n\n\n<li>\u0397 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b7 \u03b4\u03b9\u03ac\u03bc\u03b5\u03c4\u03c1\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u2265 0,3 mm.<\/li>\n\n\n\n<li>\u03a4\u03b1 \u03af\u03c7\u03bd\u03b7 \u03c4\u03bf\u03c5 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b1- \u03b7 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c3\u03c5\u03c7\u03bd\u03ac \u03bc\u03b9\u03b1 \u03c3\u03c5\u03c3\u03c4\u03bf\u03b9\u03c7\u03af\u03b1 \u03c4\u03c3\u03b9\u03bc\u03c0\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03bf\u03c0\u03ad\u03c2 \u03c0\u03c1\u03b5\u03c3\u03b1\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03bf\u03c2.<\/li>\n\n\n\n<li>\u039f\u03b9 \u03bf\u03c0\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bd\u03bf\u03af\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03ba\u03b1\u03c4\u03ac 0,2 mm \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03bf\u03c0\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03cc\u03ba\u03b5\u03b9\u03c4\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03b5\u03b8\u03bf\u03cd\u03bd.<\/li>\n\n\n\n<li>\u0397 \u03b1\u03bd\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03b2\u03ac\u03b8\u03bf\u03c5\u03c2 \u03c4\u03bf\u03c5 \u03c4\u03c1\u03c5\u03c0\u03b1\u03bd\u03b9\u03bf\u03cd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b5\u03c1\u03af\u03c0\u03bf\u03c5 \u00b10,05 mm.<\/li>\n\n\n\n<li>\u0395\u03ac\u03bd \u03c4\u03bf backdrilling \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03bf \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u039c, \u03c4\u03cc\u03c4\u03b5 \u03c4\u03bf \u03c0\u03ac\u03c7\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03b9\u03ba\u03bf\u03cd \u03b1\u03c0\u03cc \u03c4\u03bf \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u039c \u03ad\u03c9\u03c2 \u03c4\u03bf \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1 \u039c-1 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd 0,17 mm.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"600\" height=\"450\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilled-board.webp\" alt=\"backdrilled board\" class=\"wp-image-3604\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilled-board.webp 600w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/09\/backdrilled-board-300x225.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">7. \u03a4\u03c5\u03c0\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7<\/h3>\n\n\n\n<p>\u039f\u03b9 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03bf \u03c4\u03c1\u03c5\u03c0\u03ac\u03bd\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2 \u03c0\u03bf\u03c5 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03ba\u03b1\u03bb\u03ae \u03b1\u03ba\u03b5\u03c1\u03b1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b5\u03c2 \u03b4\u03bf\u03bc\u03ad\u03c2. \u03a3\u03c5\u03bd\u03ae\u03b8\u03b5\u03b9\u03c2 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc\u03c2 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd, \u03bf\u03b9 \u03bc\u03b5\u03b3\u03ac\u03bb\u03bf\u03b9 \u03b4\u03b9\u03b1\u03ba\u03bf\u03bc\u03b9\u03c3\u03c4\u03ad\u03c2, \u03c4\u03b1 \u03b9\u03b1\u03c4\u03c1\u03b9\u03ba\u03ac \u03b7\u03bb\u03b5\u03ba\u03c4\u03c1\u03bf\u03bd\u03b9\u03ba\u03ac, \u03bf \u03c3\u03c4\u03c1\u03b1\u03c4\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03b5\u03c1\u03bf\u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03ae. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03bf \u03c3\u03c4\u03c1\u03b1\u03c4\u03cc\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03b5\u03c1\u03bf\u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c5\u03b1\u03af\u03c3\u03b8\u03b7\u03c4\u03bf\u03b9 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2, \u03bf\u03b9 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03bc\u03b5 \u03bf\u03c0\u03af\u03c3\u03b8\u03b9\u03b1 \u03b4\u03b9\u03ac\u03c4\u03c1\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03b1\u03c0\u03cc \u03b5\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03b9\u03bd\u03c3\u03c4\u03b9\u03c4\u03bf\u03cd\u03c4\u03b1, \u03ba\u03ad\u03bd\u03c4\u03c1\u03b1 \u0395&amp;\u0391 \u03ae \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03b5\u03c4\u03ce\u03bd \u03bc\u03b5 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc \u03c5\u03c0\u03cc\u03b2\u03b1\u03b8\u03c1\u03bf \u03c3\u03b5 \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03c4\u03bf\u03bc\u03b5\u03af\u03c2. \u03a3\u03c4\u03b7\u03bd \u039a\u03af\u03bd\u03b1, \u03b7 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b6\u03ae\u03c4\u03b7\u03c3\u03b7 \u03b3\u03b9\u03b1 backplanes \u03c0\u03c1\u03bf\u03ad\u03c1\u03c7\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03af\u03b1 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03b9\u03ce\u03bd, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b1\u03bd\u03b1\u03c0\u03c4\u03cd\u03c3\u03c3\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b1\u03c7\u03b5\u03af\u03c2 \u03c1\u03c5\u03b8\u03bc\u03bf\u03cd\u03c2.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u03a0\u03b5\u03c1\u03af\u03bb\u03b7\u03c8\u03b7<\/h2>\n\n\n\n<p>\u0395\u03bd \u03bf\u03bb\u03af\u03b3\u03bf\u03b9\u03c2, \u03c4\u03b1 vias \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c0\u03bb\u03ac \u03b1\u03bb\u03bb\u03ac \u03ba\u03c1\u03af\u03c3\u03b9\u03bc\u03b1. \u03a3\u03c5\u03bd\u03b4\u03ad\u03bf\u03c5\u03bd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ae \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae. \u0391\u03c5\u03c4\u03ac \u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ac \u03c3\u03c4\u03bf\u03b9\u03c7\u03b5\u03af\u03b1 \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03cc\u03c3\u03bf \u03c4\u03bf \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03bd\u03cc\u03b4\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03c4\u03bf \u03c0\u03cc\u03c3\u03bf \u03ba\u03b1\u03bb\u03ac \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03bf\u03b9 \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03ad\u03c2 \u03c0\u03b1\u03c1\u03ac\u03ba\u03b1\u03bc\u03c8\u03b7\u03c2. \u03a4\u03bf \u03bc\u03ae\u03ba\u03bf\u03c2 \u03c4\u03c9\u03bd \u03bf\u03c0\u03ce\u03bd \u03bf\u03b4\u03b7\u03b3\u03b5\u03af \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b1\u03b3\u03c9\u03b3\u03ae. \u03a4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 Via, \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03bf\u03c5 pad \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b4\u03b9\u03ac\u03ba\u03b5\u03bd\u03bf \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03c7\u03c9\u03c1\u03b7\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1. \u0393\u03b9\u03b1 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03bc\u03bf\u03cd\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf\u03bd \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03bf \u03ba\u03b1\u03c4\u03ac\u03bb\u03bf\u03b3\u03bf \u03b5\u03bb\u03ad\u03b3\u03c7\u03bf\u03c5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0394\u03b9\u03b1\u03bb\u03ad\u03be\u03c4\u03b5 \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c0\u03bf\u03c5 \u03c4\u03b1\u03b9\u03c1\u03b9\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c4\u03b7\u03bd \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1\u03c2. \u0393\u03b9\u03b1 \u03c0\u03bf\u03bb\u03bb\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 10\/20 mil \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cc- \u03b3\u03b9\u03b1 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ac\u03c3\u03c4\u03b5 8\/18 mil. \u0393\u03b9\u03b1 vias \u03b9\u03c3\u03c7\u03cd\u03bf\u03c2\/\u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2, \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03c4\u03b5 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7.<\/li>\n\n\n\n<li>\u03a7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03bb\u03b5\u03c0\u03c4\u03ae \u03c3\u03b1\u03bd\u03af\u03b4\u03b1 \u03b1\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03c5\u03bd\u03b1\u03c4\u03cc\u03bd. \u0391\u03c5\u03c4\u03cc \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c3\u03b9\u03c4\u03b9\u03ba\u03ac \u03bc\u03ad\u03c3\u03c9.<\/li>\n\n\n\n<li>\u0391\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c4\u03c4\u03ad\u03c2 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ad\u03c2 \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u0394\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03c1\u03bf\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7 \u03c3\u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf \u03cc\u03c4\u03b1\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5.<\/li>\n\n\n\n<li>\u03a4\u03bf\u03c0\u03bf\u03b8\u03b5\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf\u03c5\u03c2 \u03b1\u03ba\u03c1\u03bf\u03b4\u03ad\u03ba\u03c4\u03b5\u03c2 \u03c4\u03c1\u03bf\u03c6\u03bf\u03b4\u03bf\u03c3\u03af\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 vias \u03ba\u03b1\u03b9 \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c5\u03c1\u03b5\u03af\u03b5\u03c2.<\/li>\n\n\n\n<li>\u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03c4\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 \u03b3\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c3\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03b1\u03bb\u03bb\u03ac\u03b6\u03bf\u03c5\u03bd \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03b7 \u03b4\u03b9\u03b1\u03b4\u03c1\u03bf\u03bc\u03ae \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03bf\u03c6\u03ae\u03c2.<\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 \u03bc\u03b5\u03b3\u03ac\u03bb\u03b1 vias \u03ae \u03b2\u03b1\u03b8\u03b9\u03ad\u03c2 \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b5\u03c2, \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bd\u03b4\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 backdrilling \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c6\u03b1\u03b9\u03c1\u03ad\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03ba\u03bf\u03bb\u03bf\u03b2\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b2\u03bb\u03ac\u03c0\u03c4\u03bf\u03c5\u03bd \u03c4\u03b1 \u03c3\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c4\u03b1\u03c7\u03cd\u03c4\u03b7\u03c4\u03b1\u03c2.<\/li>\n\n\n\n<li>\u038c\u03c4\u03b1\u03bd \u03b7 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03b4\u03b9\u03b1\u03cd\u03bb\u03c9\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03c5\u03c8\u03b7\u03bb\u03ae, \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03c4\u03b5 \u03c4\u03bf \u03b5\u03bd\u03b4\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03bf \u03bd\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b1 \u03bc\u03b5\u03b3\u03ad\u03b8\u03b7 \u03c4\u03c9\u03bd \u03bc\u03b1\u03be\u03b9\u03bb\u03b1\u03c1\u03b9\u03ce\u03bd \u03c3\u03b5 \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ac \u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c6\u03cd\u03b3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c0\u03ac\u03c3\u03b9\u03bc\u03bf \u03c4\u03c9\u03bd \u03c7\u03ac\u03bb\u03ba\u03b9\u03bd\u03c9\u03bd \u03c7\u03c5\u03c4\u03ce\u03bd.<\/li>\n<\/ul>\n\n\n\n<p>\u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03ae\u03c3\u03c4\u03b5 \u03b1\u03c5\u03c4\u03bf\u03cd\u03c2 \u03c4\u03bf\u03c5\u03c2 \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03ba\u03b5\u03c6\u03c4\u03b5\u03af\u03c4\u03b5 \u03bf\u03bb\u03cc\u03ba\u03bb\u03b7\u03c1\u03bf \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1, \u03cc\u03c7\u03b9 \u03bc\u03cc\u03bd\u03bf \u03ad\u03bd\u03b1 \u03bc\u03b5\u03bc\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03bf \u03bc\u03ad\u03c3\u03bf. \u03a3\u03c4\u03b7 \u03c3\u03c7\u03b5\u03b4\u03af\u03b1\u03c3\u03b7 \u03c5\u03c8\u03b7\u03bb\u03ce\u03bd \u03c4\u03b1\u03c7\u03c5\u03c4\u03ae\u03c4\u03c9\u03bd \u03bf\u03b9 \u03bc\u03b9\u03ba\u03c1\u03ad\u03c2 \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b5\u03c2 \u03b1\u03b8\u03c1\u03bf\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9. \u0388\u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc \u03c3\u03c7\u03ad\u03b4\u03b9\u03bf via \u03b8\u03b1 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03bb\u03b1\u03ba\u03ad\u03c4\u03b1 \u03c3\u03b1\u03c2 \u03bd\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1, \u03b8\u03b1 \u03bc\u03b5\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c4\u03bf\u03bd \u03ba\u03af\u03bd\u03b4\u03c5\u03bd\u03bf \u03ba\u03b1\u03b9 \u03b8\u03b1 \u03b5\u03be\u03bf\u03b9\u03ba\u03bf\u03bd\u03bf\u03bc\u03ae\u03c3\u03b5\u03b9 \u03c7\u03c1\u03cc\u03bd\u03bf \u03b1\u03c1\u03b3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c3\u03c6\u03b1\u03bb\u03bc\u03ac\u03c4\u03c9\u03c3\u03b7.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>A via is one of the key parts of a multi-layer printed circuit board (PCB). In many boards, drilling costs [&hellip;]<\/p>","protected":false},"author":1,"featured_media":3607,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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