{"id":4805,"date":"2026-03-12T09:17:05","date_gmt":"2026-03-12T09:17:05","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4805"},"modified":"2026-03-12T09:33:13","modified_gmt":"2026-03-12T09:33:13","slug":"pcb-blind-and-buried-via-manufacturing-process-guide","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/vi\/pcb-blind-and-buried-via-manufacturing-process-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn quy tr\u00ecnh s\u1ea3n xu\u1ea5t l\u1ed7 m\u00f9 v\u00e0 l\u1ed7 ch\u00f4n tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB)"},"content":{"rendered":"<h2 class=\"wp-block-heading\">1. T\u1ed5ng quan<\/h2>\n\n\n\n<p>C\u00e1c l\u1ed7 vias m\u00f9 v\u00e0 l\u1ed7 vias ch\u00f4n ng\u1ea7m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c b\u1ea3ng m\u1ea1ch c\u00f3 m\u1eadt \u0111\u1ed9 cao v\u00e0 c\u00e1c b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 r\u1ea5t nh\u1ecf. M\u1ee5c \u0111\u00edch l\u00e0 \u0111\u1ec3 ti\u1ebft ki\u1ec7m kh\u00f4ng gian b\u1ed1 tr\u00ed \u0111\u01b0\u1eddng d\u1eabn v\u00e0 nh\u1edd \u0111\u00f3 l\u00e0m cho b\u1ea3ng m\u1ea1ch in (PCB) nh\u1ecf g\u1ecdn h\u01a1n. M\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh l\u00e0 c\u00e1c b\u1ea3ng m\u1ea1ch in c\u1ee7a \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Ph\u00e2n lo\u1ea1i<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">A) Khoan b\u1eb1ng laser<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. L\u00fd do n\u00ean s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 khoan laser<\/h4>\n\n\n\n<p>a. Kh\u00e1ch h\u00e0ng y\u00eau c\u1ea7u gia c\u00f4ng khoan b\u1eb1ng laser.<br>b. C\u00e1c l\u1ed7 vias m\u00f9 c\u00f3 th\u1ec3 r\u1ea5t nh\u1ecf (&lt;= 6 MIL), do \u0111\u00f3 ch\u1ec9 c\u00f3 tia laser m\u1edbi c\u00f3 th\u1ec3 khoan ch\u00fang m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<br>c. \u0110\u1ed1i v\u1edbi c\u00e1c c\u1ee5m l\u1ed7 via \u1ea9n v\u00e0 ch\u00f4n ng\u1ea7m \u0111\u1eb7c bi\u1ec7t \u2014 v\u00ed d\u1ee5, n\u1ebfu c\u00f3 m\u1ed9t l\u1ed7 via \u1ea9n t\u1eeb L1 \u0111\u1ebfn L2 v\u00e0 m\u1ed9t l\u1ed7 via ch\u00f4n ng\u1ea7m t\u1eeb L2 \u0111\u1ebfn L3 \u2014 th\u00ec c\u1ea7n ph\u1ea3i khoan b\u1eb1ng laser.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. Nguy\u00ean l\u00fd khoan b\u1eb1ng laser<\/h4>\n\n\n\n<p>K\u1ef9 thu\u1eadt khoan b\u1eb1ng laser s\u1eed d\u1ee5ng nhi\u1ec7t t\u1eeb tia laser \u0111\u1ec3 l\u00e0m bay h\u01a1i ho\u1eb7c nung ch\u1ea3y v\u1eadt li\u1ec7u t\u1ea5m v\u00e0 t\u1ea1o ra l\u1ed7. \u0110\u1ec3 qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra, v\u1eadt li\u1ec7u t\u1ea5m ph\u1ea3i h\u1ea5p th\u1ee5 \u0111\u01b0\u1ee3c n\u0103ng l\u01b0\u1ee3ng laser. V\u00ec l\u00fd do \u0111\u00f3, c\u00e1c v\u1eadt li\u1ec7u lo\u1ea1i RCC th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00ec ch\u00fang kh\u00f4ng ch\u1ee9a v\u1ea3i s\u1ee3i th\u1ee7y tinh v\u00e0 do \u0111\u00f3 kh\u00f4ng ph\u1ea3n x\u1ea1 tia laser.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. Gi\u1edbi thi\u1ec7u ng\u1eafn g\u1ecdn v\u1ec1 v\u1eadt li\u1ec7u RCC<\/h4>\n\n\n\n<p>RCC l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Resin Coated Copper (\u0110\u1ed3ng ph\u1ee7 nh\u1ef1a). \u0110\u00e2y l\u00e0 lo\u1ea1i l\u00e1 \u0111\u1ed3ng c\u00f3 m\u1ed9t l\u1edbp nh\u1ef1a \u0111\u1eb7c bi\u1ec7t ph\u1ee7 tr\u00ean m\u1eb7t th\u00f4 c\u1ee7a l\u00e1 \u0111\u1ed3ng \u0111i\u1ec7n ph\u00e2n.<br>T\u1ea1i c\u00f4ng ty ch\u00fang t\u00f4i, ch\u00fang t\u00f4i c\u00f3 ba nh\u00e0 cung c\u1ea5p RCC: Shengyi, Mitsui v\u00e0 LG.<br>C\u00e1c t\u00f9y ch\u1ecdn v\u1eadt li\u1ec7u: \u0111\u1ed9 d\u00e0y nh\u1ef1a 50, 65, 70, 75, 80 \u00b5m, \u0111\u1ed9 d\u00e0y l\u00e1 \u0111\u1ed3ng 12, 18 \u00b5m, v.v.<br>RCC c\u00f3 c\u00e1c lo\u1ea1i c\u00f3 nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n pha (Tg) cao v\u00e0 th\u1ea5p. H\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i c\u1ee7a n\u00f3 th\u01b0\u1eddng th\u1ea5p h\u01a1n so v\u1edbi FR-4 ti\u00eau chu\u1ea9n. V\u00ed d\u1ee5, s\u1ea3n ph\u1ea9m S6018 c\u1ee7a Shengyi c\u00f3 h\u1eb1ng s\u1ed1 \u0111i\u1ec7n m\u00f4i l\u00e0 3,8, v\u00ec v\u1eady c\u1ea7n l\u01b0u \u00fd khi c\u1ea7n ki\u1ec3m so\u00e1t tr\u1edf kh\u00e1ng.<br>\u0110\u1ec3 bi\u1ebft th\u00eam chi ti\u1ebft v\u1ec1 c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3, vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn K\u1ef9 thu\u1eadt S\u1ea3n ph\u1ea9m (PE) ho\u1eb7c b\u1ed9 ph\u1eadn Nghi\u00ean c\u1ee9u v\u00e0 Ph\u00e1t tri\u1ec3n (RD).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">4. D\u1ee5ng c\u1ee5 v\u00e0 y\u00eau c\u1ea7u v\u1ec1 d\u1ee5ng c\u1ee5 cho qu\u00e1 tr\u00ecnh khoan b\u1eb1ng laser<\/h4>\n\n\n\n<p>A) Tia laser kh\u00f3 c\u00f3 th\u1ec3 \u0111\u1ed1t th\u1ee7ng \u0111\u1ed3ng. V\u00ec v\u1eady, tr\u01b0\u1edbc khi khoan b\u1eb1ng laser, h\u00e3y kh\u1eafc m\u1ed9t kho\u1ea3ng tr\u1ed1ng b\u1eb1ng \u0111\u1ed3ng t\u1ea1i c\u00e1c v\u1ecb tr\u00ed l\u1ed7 m\u00f9. Kho\u1ea3ng tr\u1ed1ng n\u00e0y ph\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng \u1ee9ng v\u1edbi k\u00edch th\u01b0\u1edbc l\u1ed7 sau khi ho\u00e0n thi\u1ec7n.<br>B) C\u00e1c d\u1ea5u \u0111\u1ecbnh v\u1ecb cho qu\u00e1 tr\u00ecnh khoan laser \u0111\u01b0\u1ee3c th\u00eam v\u00e0o l\u1edbp L2 \/ L(N-1). Ghi ch\u00fa \u0111i\u1ec1u n\u00e0y v\u00e0o trang thay \u0111\u1ed5i m\u00e0ng MI.<br>C) M\u00e0ng d\u00f9ng \u0111\u1ec3 kh\u1eafc c\u00e1c \u0111i\u1ec3m l\u1ed7 xuy\u00ean m\u00f9 ph\u1ea3i \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00f4ng ngh\u1ec7 LDI. C\u00e1c t\u1ea5m m\u1ea1ch c\u1eaft s\u1eb5n v\u00e0 d\u1ee5ng c\u1ee5 gia c\u00f4ng ph\u1ea3i tu\u00e2n th\u1ee7 k\u00edch th\u01b0\u1edbc t\u1ea5m m\u1ea1ch theo ti\u00eau chu\u1ea9n LDI.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">5. C\u00e1c t\u00ednh n\u0103ng c\u1ee7a quy tr\u00ecnh s\u1ea3n xu\u1ea5t<\/h4>\n\n\n\n<p>A) Khi t\u1ed5ng s\u1ed1 l\u1edbp b\u1ea3ng m\u1ea1ch l\u00e0 N, h\u00e3y th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc c\u00e1c l\u1edbp t\u1eeb L2 \u0111\u1ebfn L(N-1) theo quy tr\u00ecnh ch\u1ebf t\u1ea1o l\u1edbp trong th\u00f4ng th\u01b0\u1eddng.<br>B) Sau khi \u00e9p m\u00e0ng v\u00e0 sau khi gia c\u00f4ng \u0111\u01b0\u1eddng vi\u1ec1n b\u1ea3ng m\u1ea1ch, h\u00e3y \u0111i\u1ec1u ch\u1ec9nh quy tr\u00ecnh nh\u01b0 sau:<br>\u2192 khoan l\u1ed7 \u0111\u0103ng k\u00fd LDI \u2192 ph\u1ee7 m\u00e0ng kh\u00f4 \u2192 \u0103n m\u00f2n c\u00e1c \u0111i\u1ec3m l\u1ed7 th\u00f4ng m\u00f9 \u2192 khoan laser \u2192 khoan l\u1ed7 xuy\u00ean \u2192 m\u1ea1 \u0111\u1ed3ng kh\u00f4ng \u0111i\u1ec7n \u2192 (quy tr\u00ecnh th\u00f4ng th\u01b0\u1eddng).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">6. C\u00e1c l\u01b0u \u00fd kh\u00e1c<\/h4>\n\n\n\n<p>A) Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, v\u1eadt li\u1ec7u RCC kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn UL. V\u00ec v\u1eady, hi\u1ec7n t\u1ea1i xin \u0111\u1eebng th\u00eam d\u1ea5u UL v\u00e0o c\u00e1c b\u1ea3ng m\u1ea1ch n\u00e0y.<br>B) V\u1ec1 b\u1ed1 c\u1ee5c t\u1ea5m v\u00e0 MI: \u0111\u1ec3 tr\u00e1nh vi\u1ec7c x\u1eed l\u00fd c\u00e1c b\u1ed1 c\u1ee5c c\u00f3 ch\u1ee9a RCC nh\u01b0 c\u00e1c t\u1ea5m l\u1edbp gi\u1ea3 (x\u01b0\u1edfng phim MI s\u1ea3n xu\u1ea5t phim l\u1edbp gi\u1ea3 theo c\u00e1ch kh\u00e1c so v\u1edbi phim th\u00f4ng th\u01b0\u1eddng), h\u00e3y t\u00e1ch RCC ra kh\u1ecfi L2 ho\u1eb7c L(N-1) khi v\u1ebd c\u1ea5u tr\u00fac t\u1ea5m. V\u00ed d\u1ee5, xem b\u1ed1 c\u1ee5c t\u1ea5m SR2711\/01.<br>C) IPC-6016 l\u00e0 ti\u00eau chu\u1ea9n d\u00e0nh cho b\u1ea3ng m\u1ea1ch HDI:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ed9 d\u00e0y l\u1edbp \u0111\u1ed3ng th\u00e0nh l\u1ed7 m\u00f9 b\u1eb1ng c\u00f4ng ngh\u1ec7 laser: 0,4 mil (t\u1ed1i thi\u1ec3u).<\/li>\n\n\n\n<li>Y\u00eau c\u1ea7u v\u1ec1 m\u1ed1i h\u00e0n: cho ph\u00e9p ti\u1ebfp x\u00fac ti\u1ebfp tuy\u1ebfn.<\/li>\n\n\n\n<li>N\u1ebfu k\u00edch th\u01b0\u1edbc mi\u1ebfng \u0111\u1ec7m l\u1edbn h\u01a1n \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 kh\u00f4ng qu\u00e1 5 mil, h\u00e3y c\u00e2n nh\u1eafc th\u00eam m\u1ed9t h\u00ecnh gi\u1ecdt n\u01b0\u1edbc.<br>D) Gi\u1eef cho m\u00e9p t\u1ea5m v\u00e1n \u2265 0,8 inch.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"548\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/SR2711-01-panel-layout.webp\" alt=\"SR2711-01 panel layout\" class=\"wp-image-4806\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/SR2711-01-panel-layout.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/SR2711-01-panel-layout-300x206.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/SR2711-01-panel-layout-768x526.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/03\/SR2711-01-panel-layout-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">B) Khoan c\u01a1 kh\u00ed cho c\u00e1c l\u1ed7 th\u00f4ng m\u00f9\/ch\u00f4n ng\u1ea7m<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. Ph\u1ea1m vi \u00e1p d\u1ee5ng<\/h4>\n\n\n\n<p>Khi \u0111\u01b0\u1eddng k\u00ednh m\u0169i khoan \u2265 0,20 mm, n\u00ean xem x\u00e9t ph\u01b0\u01a1ng ph\u00e1p khoan c\u01a1 h\u1ecdc.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">2. Ph\u01b0\u01a1ng ph\u00e1p m\u1ea1 cho c\u00e1c l\u1ed7 vias \u1ea9n\/ch\u00f4n ng\u1ea7m (xem th\u00f4ng b\u00e1o RD TSFMRD-113)<\/h4>\n\n\n\n<p>A) Th\u00f4ng th\u01b0\u1eddng, b\u1ec1 m\u1eb7t \u0111\u1ed3ng m\u1ea1ch c\u1ee7a b\u1ea5t k\u1ef3 l\u1edbp n\u00e0o ch\u1ec9 c\u00f3 th\u1ec3 tr\u1ea3i qua m\u1ed9t c\u00f4ng \u0111o\u1ea1n m\u1ea1 t\u1ea5m v\u00e0 m\u1ed9t c\u00f4ng \u0111o\u1ea1n m\u1ea1 theo m\u1eabu.<br>B) Th\u00f4ng th\u01b0\u1eddng, sau khi qu\u00e1 tr\u00ecnh \u00e9p laminate ho\u00e0n t\u1ea5t v\u00e0 \u0111\u1ed9 d\u00e0y b\u1ea3ng m\u1ea1ch \u0111\u1ea1t \u2265 80 MIL, c\u00e1c l\u1ed7 xuy\u00ean qua c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c m\u1ea1 to\u00e0n b\u1ea3ng + m\u1ea1 theo m\u1eabu. Do \u0111\u00f3, khi m\u1ea1 c\u00e1c l\u1ed7 vias \u1ea9n, b\u1ec1 m\u1eb7t l\u1edbp ngo\u00e0i kh\u00f4ng \u0111\u01b0\u1ee3c m\u1ea1 to\u00e0n b\u1ea3ng.<br>C) N\u1ebfu hai \u0111i\u1ec1u ki\u1ec7n tr\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng, qu\u00e1 tr\u00ecnh m\u1ea1 l\u1ed7 m\u00f9 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u01b0 sau:<br>I) N\u1ebfu chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng m\u1ea1ch l\u1edbp ngo\u00e0i &gt; 6 MIL v\u00e0 \u0111\u1ed9 d\u00e0y b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 xuy\u00ean &lt; 80 MIL, th\u00ec trong qu\u00e1 tr\u00ecnh m\u1ea1 l\u1ed7 m\u00f9, b\u1ec1 m\u1eb7t t\u1ea5m b\u1ea3ng m\u1ea1ch l\u1edbp ngo\u00e0i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1ea1 c\u00f9ng.<br>II) N\u1ebfu chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng m\u1ea1ch l\u1edbp ngo\u00e0i &gt; 6 MIL nh\u01b0ng \u0111\u1ed9 d\u00e0y b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 xuy\u00ean &gt; 80 MIL, th\u00ec trong qu\u00e1 tr\u00ecnh m\u1ea1 l\u1ed7 m\u00f9, b\u1ec1 m\u1eb7t l\u1edbp ngo\u00e0i c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng.<br>III) N\u1ebfu chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng m\u1ea1ch l\u1edbp ngo\u00e0i &lt; 6 MIL v\u00e0 \u0111\u1ed9 d\u00e0y b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 xuy\u00ean \u2265 80 MIL, th\u00ec trong qu\u00e1 tr\u00ecnh m\u1ea1 l\u1ed7 m\u00f9, b\u1ec1 m\u1eb7t l\u1edbp ngo\u00e0i c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng m\u00e0ng (m\u00e0ng ch\u1ed1ng h\u00e0n \/ m\u00e0ng kh\u00f4)<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Khi t\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i\/chi\u1ec1u r\u1ed9ng (L\/D) c\u1ee7a l\u1ed7 m\u00f9 \u2264 0,8, h\u00e3y ph\u1ee7 m\u00e0ng kh\u00f4 l\u00ean b\u1ec1 m\u1eb7t l\u1edbp ngo\u00e0i v\u00e0 ph\u01a1i to\u00e0n b\u1ed9 b\u1ea3ng m\u1ea1ch. Sau \u0111\u00f3, c\u00e1c b\u1ec1 m\u1eb7t l\u1ed7 m\u00f9 c\u1ee7a l\u1edbp trong s\u1ebd \u0111\u01b0\u1ee3c m\u1ea1 kh\u00f4ng \u0111i\u1ec7n tr\u00ean to\u00e0n b\u1ed9 b\u1ea3ng m\u1ea1ch.<\/li>\n\n\n\n<li>Khi t\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i tr\u00ean chi\u1ec1u r\u1ed9ng (L\/D) c\u1ee7a l\u1ed7 m\u00f9 l\u1edbn h\u01a1n 0,8, h\u00e3y ph\u1ee7 m\u00e0ng kh\u00f4 l\u00ean b\u1ec1 m\u1eb7t l\u1edbp ngo\u00e0i v\u00e0 ch\u1ec9 ph\u01a1i s\u00e1ng c\u00e1c v\u1ecb tr\u00ed l\u1ed7 m\u00f9. \u0110\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y, b\u1ea1n ph\u1ea3i t\u1ea1o m\u00e0ng ph\u01a1i s\u00e1ng \u0111i\u1ec3m cho qu\u00e1 tr\u00ecnh m\u1ea1 ho\u1eb7c s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p ph\u01a1i s\u00e1ng LDI. Sau \u0111\u00f3, c\u00e1c b\u1ec1 m\u1eb7t l\u1ed7 m\u00f9 c\u1ee7a l\u1edbp trong s\u1ebd \u0111\u01b0\u1ee3c m\u1ea1 kh\u00f4ng \u0111i\u1ec7n tr\u00ean to\u00e0n b\u1ed9 t\u1ea5m m\u1ea1ch.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">4. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u01a1i s\u00e1ng c\u00e1c \u0111i\u1ec3m l\u1ed7 m\u00f9<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c l\u1ed7 m\u00f9 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh \u2264 0,4 mm (16 MIL), h\u00e3y s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 LDI \u0111\u1ec3 ph\u01a1i s\u00e1ng c\u00e1c \u0111i\u1ec3m l\u1ed7 m\u00f9.<\/li>\n\n\n\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c l\u1ed7 m\u00f9 c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n 0,4 mm (16 MIL), h\u00e3y s\u1eed d\u1ee5ng m\u00e0ng \u0111\u1ec3 ph\u01a1i s\u00e1ng c\u00e1c v\u1ecb tr\u00ed l\u1ed7 m\u00f9.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">5. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o l\u1ed7 th\u00f4ng qua l\u1edbp ph\u1ee7<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Khi chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng d\u1eabn b\u00ean c\u1ee7a l\u1ed7 n\u1ed1i ch\u00ecm \u2264 4 MIL, b\u1ec1 m\u1eb7t l\u1ed7 n\u1ed1i ch\u00ecm c\u1ea7n c\u00f3 l\u1edbp m\u00e0ng \u0111\u1ec3 ph\u01a1i s\u00e1ng c\u00e1c \u0111i\u1ec3m \u0111\u00f3.<\/li>\n\n\n\n<li>Khi chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng d\u1eabn b\u00ean c\u1ee7a l\u1ed7 n\u1ed1i ch\u00ecm l\u1edbn h\u01a1n 4 MIL, b\u1ec1 m\u1eb7t l\u1ed7 n\u1ed1i ch\u00ecm c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1ea1 tr\u1ef1c ti\u1ebfp tr\u00ean t\u1ea5m.<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">6. Ghi ch\u00fa v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0110\u1ed1i v\u1edbi t\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i tr\u00ean \u0111\u01b0\u1eddng k\u00ednh (L\/D): L = \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i + \u0111\u1ed9 d\u00e0y \u0111\u1ed3ng, D = \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 d\u1eabn \u0111i\u1ec7n b\u1ecb che khu\u1ea5t\/ch\u00f4n ng\u1ea7m.<\/li>\n\n\n\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c l\u1ed7 m\u00f9\/l\u1ed7 ch\u00f4n ng\u1ea7m qua l\u1edbp m\u1ea1: \u0111\u01b0\u1eddng k\u00ednh \u0111i\u1ec3m ph\u01a1i s\u00e1ng D_spot = D \u2013 6 (MIL).\n<ul class=\"wp-block-list\">\n<li>Th\u00eam c\u00e1c d\u1ea5u \u0111\u1ecbnh v\u1ecb v\u00e0o phim \u0111i\u1ec3m ph\u01a1i s\u00e1ng. T\u1ecda \u0111\u1ed9 c\u1ee7a c\u00e1c d\u1ea5u n\u00e0y ph\u1ea3i tr\u00f9ng kh\u1edbp v\u1edbi c\u00e1c l\u1ed7 tham chi\u1ebfu b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>C\u00e1c l\u1ed7 m\u00f9 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u1ea1 b\u1eb1ng d\u00f2ng \u0111i\u1ec7n xung (AC) trong qu\u00e1 tr\u00ecnh m\u1ea1 \u0111i\u1ec7n.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t v\u00e0 ghi ch\u00fa v\u1ec1 quy tr\u00ecnh \u0111\u1ed1i v\u1edbi b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 th\u00f4ng m\u00f9<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>L\u1ed7 th\u00f4ng m\u00f9 ch\u1ee9a nh\u1ef1a<\/strong>:<br>Khi k\u00edch th\u01b0\u1edbc c\u00e1c l\u1ed7 vias ch\u00ecm l\u1edbn v\u00e0 c\u00f3 nhi\u1ec1u l\u1ed7, qu\u00e1 tr\u00ecnh \u00e9p b\u1ea3ng m\u1ea1ch c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng l\u1edbn nh\u1ef1a \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y c\u00e1c l\u1ed7 vias. \u0110\u1ec3 tr\u00e1nh \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 d\u00e0y cu\u1ed1i c\u00f9ng c\u1ee7a b\u1ea3ng m\u1ea1ch, b\u1ed9 ph\u1eadn R&amp;D c\u00f3 th\u1ec3 y\u00eau c\u1ea7u l\u1ea5p \u0111\u1ea7y tr\u01b0\u1edbc c\u00e1c l\u1ed7 vias ch\u00ecm b\u1eb1ng nh\u1ef1a tr\u01b0\u1edbc khi \u00e9p l\u1edbp. Ph\u01b0\u01a1ng ph\u00e1p l\u1ea5p \u0111\u1ea7y c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng theo ph\u01b0\u01a1ng ph\u00e1p l\u1ea5p \u0111\u1ea7y l\u1ed7 vias b\u1eb1ng l\u1edbp ph\u1ee7 h\u00e0n m\u00e0u xanh l\u00e1 c\u00e2y.<\/li>\n\n\n\n<li><strong>Khi l\u1edbp ngo\u00e0i c\u00f3 l\u1ed7 th\u00f4ng m\u00f9<\/strong>:<br>a. Trong qu\u00e1 tr\u00ecnh \u00e9p, l\u1edbp ngo\u00e0i c\u00f3 th\u1ec3 b\u1ecb r\u00f2 r\u1ec9 nh\u1ef1a. Do \u0111\u00f3, sau khi \u00e9p l\u1edbp, c\u1ea7n th\u1ef1c hi\u1ec7n th\u00eam b\u01b0\u1edbc lo\u1ea1i b\u1ecf nh\u1ef1a (de-gumming).<br>b. Tr\u01b0\u1edbc khi ph\u1ee7 l\u1edbp m\u00e0ng kh\u00f4 b\u00ean ngo\u00e0i, b\u1ec1 m\u1eb7t b\u1ea3ng m\u1ea1ch \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch v\u00e0 c\u00f3 b\u01b0\u1edbc \u0111\u00e1nh b\u00f3ng b\u1ea3ng m\u1ea1ch. \u0110\u1ed3ng h\u00f3a h\u1ecdc (\u0111\u1ed3ng kh\u00f4ng \u0111i\u1ec7n ph\u00e2n) r\u1ea5t m\u1ecfng (ch\u1ec9 0,05\u20130,1 mil), do \u0111\u00f3 c\u00f3 th\u1ec3 b\u1ecb m\u00e0i m\u00f2n trong qu\u00e1 tr\u00ecnh \u0111\u00e1nh b\u00f3ng. \u0110\u1ec3 tr\u00e1nh \u0111i\u1ec1u n\u00e0y, h\u00e3y th\u00eam b\u01b0\u1edbc m\u1ea1 t\u1ea5m \u0111\u1ec3 l\u00e0m d\u00e0y l\u1edbp \u0111\u1ed3ng. Quy tr\u00ecnh \u0111i\u1ec3n h\u00ecnh: \u00e9p l\u1edbp \u2192 lo\u1ea1i b\u1ecf nh\u1ef1a \u2192 khoan l\u1ed7 \u2192 m\u1ea1 \u0111\u1ed3ng kh\u00f4ng \u0111i\u1ec7n ph\u00e2n \u2192 m\u1ea1 t\u1ea5m \u2192 ph\u1ee7 m\u00e0ng kh\u00f4 \u2192 m\u1ea1 m\u1eabu.<\/li>\n\n\n\n<li><strong>B\u1ea3ng m\u1ea1ch c\u00f3 nhi\u1ec1u l\u1edbp v\u1edbi l\u1ed7 th\u00f4ng m\u00f9 v\u00e0 PIN-LAM<\/strong>:<br>Khi s\u1ea3n xu\u1ea5t b\u1ea3ng m\u1ea1ch c\u00f3 nhi\u1ec1u l\u1edbp v\u00e0 l\u1ed7 vias \u1ea9n, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u00e9p laminate PIN-LAM. L\u01b0u \u00fd r\u1eb1ng c\u00e1c m\u00e1y m\u00f3c c\u1ee7a ch\u00fang t\u00f4i ch\u1ec9 c\u00f3 th\u1ec3 khoan l\u1ed7 PIN-LAM khi \u0111\u1ed9 d\u00e0y l\u00f5i nh\u1ecf h\u01a1n 30 MIL. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, ch\u00fang t\u00f4i v\u1eabn s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u00e9p laminate th\u00f4ng th\u01b0\u1eddng; v\u00ed d\u1ee5, s\u1ea3n ph\u1ea9m PR4726010 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p \u00e9p laminate th\u00f4ng th\u01b0\u1eddng.<\/li>\n\n\n\n<li><strong>M\u00e9p v\u00e1n<\/strong>:<br>Do c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u l\u1edbp \u00e9p v\u00e0 nhi\u1ec1u l\u1ed7 gia c\u00f4ng, n\u00ean \u0111\u1ec3 l\u1ea1i m\u00e9p b\u1ea3ng m\u1ea1ch \u2265 0,8 inch.<\/li>\n\n\n\n<li><strong>Ghi ch\u00fa v\u1ec1 th\u1ebb LOT v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/strong>:<br>Khi l\u1eadp th\u1ebb LOT, \u0111\u1ed1i v\u1edbi c\u00e1c quy tr\u00ecnh con, b\u1ea1n ph\u1ea3i ghi r\u00f5 c\u1ea5u tr\u00fac b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a t\u1eebng quy tr\u00ecnh con v\u00e0 c\u0169ng ph\u1ea3i ghi c\u1ea5u tr\u00fac b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a quy tr\u00ecnh ch\u00ednh trong ph\u1ea7n y\u00eau c\u1ea7u \u0111\u1eb7c bi\u1ec7t. \u0110i\u1ec1u n\u00e0y s\u1ebd h\u1ed7 tr\u1ee3 cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng sau n\u00e0y.<\/li>\n\n\n\n<li><strong>N\u00ean \u0111\u1eb7t m\u00e0ng kh\u00f4 blind-via \u1edf \u0111\u00e2u (l\u1edbp trong hay l\u1edbp ngo\u00e0i)<\/strong>:<br>V\u00ed d\u1ee5: n\u1ebfu \u0111\u1ed9 d\u00e0y A c\u1ee7a l\u00f5i l\u1edbn h\u01a1n 12 MIL (kh\u00f4ng t\u00ednh \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ed3ng), th\u00ec \u0111\u1eb7t m\u00e0ng kh\u00f4 l\u00ean l\u1edbp ngo\u00e0i. N\u1ebfu \u0111\u1ed9 d\u00e0y A c\u1ee7a l\u00f5i nh\u1ecf h\u01a1n 12 MIL (kh\u00f4ng t\u00ednh \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ed3ng), th\u00ec \u0111\u1eb7t m\u00e0ng kh\u00f4 l\u00ean l\u1edbp trong.<\/li>\n<\/ol>\n\n\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Nh\u1eafc nh\u1edf nhanh v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea3m b\u1ea3o m\u00e9p t\u1ea5m v\u00e1n c\u00f3 chi\u1ec1u r\u1ed9ng \u2265 0,8 inch.<\/li>\n\n\n\n<li>\u0110\u1ed9 d\u00e0y l\u1edbp \u0111\u1ed3ng th\u00e0nh \u1ed1ng d\u1eabn m\u00f9 b\u1eb1ng c\u00f4ng ngh\u1ec7 laser \u2265 0,4 mil.<\/li>\n\n\n\n<li>\u0110\u1ed1i v\u1edbi tr\u01b0\u1eddng h\u1ee3p ch\u00eanh l\u1ec7ch k\u00edch th\u01b0\u1edbc gi\u1eefa mi\u1ebfng \u0111\u1ec7m v\u00e0 l\u1ed7 \u2264 5 mil, n\u00ean s\u1eed d\u1ee5ng h\u00ecnh gi\u1ecdt n\u01b0\u1edbc.<\/li>\n\n\n\n<li>H\u00e3y s\u1eed d\u1ee5ng RCC cho qu\u00e1 tr\u00ecnh khoan b\u1eb1ng laser v\u00ec RCC c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 tia laser.<\/li>\n\n\n\n<li>\u0110\u1ed1i v\u1edbi c\u00e1c l\u1ed7 via b\u1ecb che khu\u1ea5t\/ch\u00f4n ng\u1ea7m do qu\u00e1 tr\u00ecnh m\u1ea1, h\u00e3y ki\u1ec3m tra chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng d\u1eabn tr\u00ean l\u1edbp ngo\u00e0i v\u00e0 \u0111\u1ed9 d\u00e0y t\u1ed5ng th\u1ec3 c\u1ee7a b\u1ea3ng m\u1ea1ch \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh n\u00ean m\u1ea1 theo t\u1ea5m hay b\u1ea3o v\u1ec7 b\u1eb1ng m\u00e0ng.<\/li>\n\n\n\n<li>T\u1ef7 l\u1ec7 L\/D = (\u0111i\u1ec7n m\u00f4i + \u0111\u1ed3ng) \/ \u0111\u01b0\u1eddng k\u00ednh l\u1ed7. S\u1eed d\u1ee5ng th\u00f4ng s\u1ed1 n\u00e0y \u0111\u1ec3 l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ph\u01a1i s\u00e1ng v\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng phim.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>1. Overview Blind vias and buried vias are mainly used for high-density boards and for boards with very small holes. 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