{"id":4967,"date":"2026-05-25T08:17:53","date_gmt":"2026-05-25T08:17:53","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4967"},"modified":"2026-05-25T08:25:01","modified_gmt":"2026-05-25T08:25:01","slug":"fr4-vs-high-speed-pcb-materials","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/ko\/fr4-vs-high-speed-pcb-materials\/","title":{"rendered":"\uace0\uc18d PCB \uc124\uacc4\ub97c \uc704\ud55c \ucd5c\uace0\uc758 \uae30\ud310 \uc18c\uc7ac\ub294 FR-4\uc778\uac00?"},"content":{"rendered":"<p>\uc790\uc2e0\uc758 \uc548\uc804\uc9c0\ub300\ub97c \ubc97\uc5b4\ub09c \ud504\ub85c\uc81d\ud2b8\ub97c \ub9e1\uac8c \ub418\uba74 \ub204\uad6c\ub098 \ud55c \ubc88\ucbe4\uc740 \uadf8\ub7f0 \uacbd\ud5d8\uc744 \ud574\ubcf8 \uc801\uc774 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4. \uc81c\uac8c\ub3c4 \uc0c1\uc0ac\uac00 \uace0\uc18d \ubcf4\ub4dc\ub97c \uc124\uacc4\ud574 \ub2ec\ub77c\uace0 \ubd80\ud0c1\ud55c \ub0a0\uc774 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uc800\ub294 \uc81c\uac00 \uacbd\ud5d8\uc774 \ub9ce\uc740 \ud68c\ub85c \uc124\uacc4\uc790\ub77c\uace0 \uc0dd\uac01\ud588\uc9c0\ub9cc, \uace0\uc18d PCB \uc124\uacc4\uc5d0\ub294 \uc77c\ubc18 \ud68c\ub85c\ub97c \uc124\uacc4\ud560 \ub54c \uc9c1\uba74\ud558\uc9c0 \uc54a\ub294 \ub9ce\uc740 \ud55c\uacc4\uac00 \uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \ucc98\uc74c\uc5d0\ub294 \uace0\uc18d \uc124\uacc4\uc5d0 \uc801\ud569\ud55c \ud68c\ub85c\ub3c4\ub97c \ub9cc\ub4dc\ub294 \ub370 \uc2dc\uac04\uc744 \ubcf4\ub0c8\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uadf8 \uc791\uc5c5\uc774 \ub05d\ub098\uace0 \ub098\uc11c\ub294 \uc81c\uac00 \uc124\uacc4\ud55c <a href=\"https:\/\/flj-pcb.com\/ko\/pcb-manufacturer\/high-speed-pcb\/\" data-type=\"page\" data-id=\"2370\">\uace0\uc18d PCB <\/a>\ud504\ub85c\ud1a0\ud0c0\uc785\uc740 <a href=\"https:\/\/flj-pcb.com\/ko\/fr-4-pcb-guide-properties-limits-material-choices\/\" data-type=\"post\" data-id=\"4641\">FR-4<\/a> \ub610\ub294 \ub354 \uc804\ubb38\uc801\uc778 \uc790\ub8cc\uc785\ub2c8\ub2e4. \uc81c\uac00 \ubc30\uc6b4 \ub0b4\uc6a9\uc744 \uc0b4\ud3b4\ubcf4\uae30 \uc804\uc5d0, \uc774 \uae00\uc5d0\uc11c \u201c\uace0\uc18d'\uc774\ub780 50MHz \uc774\uc0c1\uc758 \uc8fc\ud30c\uc218\ub97c \uc758\ubbf8\ud55c\ub2e4\ub294 \uc810\uc744 \uc54c\uc544\ub450\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774 \uc8fc\ud30c\uc218 \ubc94\uc704\uc5d0\uc11c \uc791\uc5c5\ud560 \ub54c \uc8fc\uc758\ud574\uc57c \ud560 \uc911\uc694\ud55c \ud3ec\uc778\ud2b8\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p>\uace0\uc18d \uc124\uacc4\ub294 \ub2e4\ub978 \uc124\uacc4\ubcf4\ub2e4 \uc2e0\ud638 \ubb34\uacb0\uc131\uc5d0 \ub300\ud55c \uaddc\uce59\uc774 \ub354 \uc5c4\uaca9\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uaddc\uce59\uc744 \ucda9\uc871\ud558\uae30 \uc704\ud574 \uace0\uc18d \uc2e0\ud638 \ub77c\uc6b0\ud305\uc5d0 \ub9e4\uc6b0 \uc8fc\uc758\ub97c \uae30\uc6b8\uc5ec\uc57c \ud558\uc9c0\ub9cc, \ubcf4\ub4dc \uc7ac\ub8cc \uc790\uccb4\uac00 \uc804\uccb4 \uc2e0\ud638 \ubb34\uacb0\uc131 \ubc29\uc815\uc2dd\uc758 \uc77c\ubd80\ub77c\ub294 \uc810\uc744 \uc774\ud574\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uace0\uc18d \uc124\uacc4\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ubcf4\ub4dc \uc7ac\ub8cc\uc5d0\ub294 \uc784\ud53c\ub358\uc2a4 \uc81c\uc5b4\uc5d0 \ub3c4\uc6c0\uc774 \ub418\ub294 \uc5c4\uaca9\ud558\uac8c \uc81c\uc5b4\ub41c \uc720\uc804\uc728 \uc0c1\uc218\uc640 \uac19\uc740 \ud2b9\uc131\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uc124\uacc4 \uc804\ubc18\uc5d0 \uac78\uccd0 \uc784\ud53c\ub358\uc2a4\uac00 \ubcc0\uacbd\ub418\ub3c4\ub85d \ud5c8\uc6a9\ud558\uba74 \uace0\uc18d \uc2e0\ud638\uac00 \ud2b8\ub808\uc774\uc2a4\uc5d0\uc11c \uc774\ub3d9\ud558\uba74\uc11c \uc5d0\ub108\uc9c0\ub97c \ubc18\uc0ac\ud558\uae30 \uc2dc\uc791\ud558\uace0 \uc2e0\ud638\uac00 \uc65c\uace1\ub429\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc2e0\ud638 \ubb34\uacb0\uc131\uc744 \uc720\uc9c0\ud558\ub824\uba74 \ub0ae\uc740 \uc190\uc2e4 \uacc4\uc218\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc5f4 \uc548\uc815\uc131\uc740 \uc720\uc804\uccb4 \uc131\ub2a5\uc774 \uace0\uc7a5 \ub098\uc9c0 \uc54a\ub3c4\ub85d \ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\ubbc0\ub85c \ub610 \ub2e4\ub978 \uc911\uc694\ud55c \ud2b9\uc131\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"615\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/High-Speed-PCB.webp\" alt=\"High-Speed PCB\" class=\"wp-image-4968\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/High-Speed-PCB.webp 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/High-Speed-PCB-300x231.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/High-Speed-PCB-768x590.webp 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/05\/High-Speed-PCB-16x12.webp 16w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>FR-4: \uc7a5\uc810\uacfc \ub2e8\uc810<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>\uc81c\uac00 \uc778\uc1c4 \ud68c\ub85c \uae30\ud310\uc744 \uc124\uacc4\ud574 \uc628 \uc774\ub798\ub85c FR-4\ub294 \ud56d\uc0c1 PCB \uc0dd\uc0b0\uc758 \ud45c\uc900 \uc7ac\ub8cc\uc600\uc2b5\ub2c8\ub2e4. \uc81c\uac00 \uc544\uc9c1 \uc8fc\ub2c8\uc5b4 \ub514\uc790\uc774\ub108\uc600\uc744 \ub54c\ub294 \uc2e4\uc81c\ub85c FR-4\ub85c \ub9cc\ub4e4\uc5c8\ub294\uc9c0 \uc5ec\ubd80\uc640 \uc0c1\uad00\uc5c6\uc774 \ubaa8\ub4e0 \uae30\ud310\uc744 \u201cFR-4\u201d\ub77c\uace0 \ubd80\ub974\uae30\ub3c4 \ud588\uc2b5\ub2c8\ub2e4. FR-4\ub294 \ub09c\uc5f0\uc131 \ud0c0\uc785 4 \uc720\ub9ac \uc12c\uc720 \uac15\ud654 \uc5d0\ud3ed\uc2dc \ub77c\ubbf8\ub124\uc774\ud2b8\uc785\ub2c8\ub2e4. \ub9e4\uc6b0 \ube44\uc6a9 \ud6a8\uc728\uc801\uc778 \uc18c\uc7ac\uc785\ub2c8\ub2e4. \ub610\ud55c \ub9e4\uc6b0 \uc6b0\uc218\ud55c \uc804\uae30 \uc808\uc5f0\uccb4\uc774\uba70 \uac74\uc870\ud558\uace0 \uc2b5\ud55c \uc870\uac74 \ubaa8\ub450\uc5d0\uc11c \ub9e4\uc6b0 \uac15\ud569\ub2c8\ub2e4. \ub610\ud55c \uc81c\uc791 \uc131\ub2a5\ub3c4 \uc6b0\uc218\ud558\uc5ec PCB \uc81c\uc791\uc5d0 \ub9e4\uc6b0 \uc801\ud569\ud55c \uc18c\uc7ac\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"688\" height=\"459\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/08\/fr-4.webp\" alt=\"fr-4\" class=\"wp-image-2743\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/08\/fr-4.webp 688w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2025\/08\/fr-4-300x200.webp 300w\" sizes=\"(max-width: 688px) 100vw, 688px\" \/><\/figure>\n\n\n\n<p>FR-4\uc758 \ub2e8\uc810\uc740 \uc804\ub825, \uc804\uc555 \ub610\ub294 \uc5f4\uc774 \ub108\ubb34 \ub192\uc544\uc9c0\uba74 \ud55c\uacc4\uac00 \uc788\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. \uc791\ub3d9 \ud55c\uacc4\ub97c \ub118\uc5b4\uc11c\uba74 FR-4\uc758 \uc720\uc804\uccb4 \uc131\ub2a5\uc774 \ub5a8\uc5b4\uc9d1\ub2c8\ub2e4. \uc989, \uc7ac\ub8cc\uc758 \uc808\uc5f0 \ub2a5\ub825\uc774 \uc545\ud654\ub418\uace0 \uc804\uae30\uac00 \ud1b5\ud558\uae30 \uc2dc\uc791\ud569\ub2c8\ub2e4. FR-4\uc758 \ub610 \ub2e4\ub978 \ubb38\uc81c\ub294 \uace0\uc18d \uc124\uacc4\uc5d0\uc11c \uc548\uc815\uc801\uc778 \uc784\ud53c\ub358\uc2a4\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. FR-4\uc758 \uc720\uc804 \uc0c1\uc218\uac00 \uae30\ud310\uc758 \uae38\uc774\uc640 \ub108\ube44\uc5d0 \ub530\ub77c \ubcc0\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub610\ud55c \uc124\uacc4 \uc18d\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \ube44\uace0\uc18d \uc124\uacc4\uc5d0\uc11c\ub294 \ud5c8\uc6a9\ub420 \uc218 \uc788\ub294 \uc2e0\ud638 \uc190\uc2e4\uc774 FR-4 \uae30\ud310\uc5d0\uc11c\ub294 \ub108\ubb34 \ub192\uc544\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\ud2b9\uc218 \uace0\uc18d \ubcf4\ub4dc \uc7ac\ub8cc\uc640 FR-4 \ube44\uad50<\/strong><strong><\/strong><\/h2>\n\n\n\n<p>\uc5f4\uacbd\ud654\uc131 \ud0c4\ud654\uc218\uc18c\uc640 \uac19\uc740 \ud2b9\uc218 \uace0\uc18d \ubcf4\ub4dc \uc7ac\ub8cc \ubc0f <a href=\"https:\/\/resources.altium.com\/p\/types-ptfe-materials-rf-pcb-design\" target=\"_blank\" rel=\"noopener\">PTFE \ub77c\ubbf8\ub124\uc774\ud2b8<\/a>, \ub294 \ub354 \ub192\uc740 \uc8fc\ud30c\uc218\ub97c \uc0ac\uc6a9\ud558\ub294 \uc124\uacc4\uc5d0\uc11c FR-4\ubcf4\ub2e4 \ub354 \uc6b0\uc218\ud558\uace0 \uc548\uc815\uc801\uc778 \uc131\ub2a5\uc744 \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc7a5\ub2e8\uc810\uc740 \ub098\uc911\uc5d0 \uc0b4\ud3b4\ubcf4\uaca0\uc9c0\ub9cc, \uba3c\uc800 \uc774\ub7ec\ud55c \uace0\uc18d \ubcf4\ub4dc \uc7ac\ub8cc\uac00 \uc81c\uacf5\ud560 \uc218 \uc788\ub294 \uba87 \uac00\uc9c0 \uc774\uc810\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\uc2e0\ud638 \uc190\uc2e4\uc774 \uc801\uc2b5\ub2c8\ub2e4.<\/strong>\u00a0\uc804\uc1a1\uc120 \uc8fc\ud30c\uc218\uac00 \ub192\uc544\uc9c8\uc218\ub85d \uc2e0\ud638 \uc190\uc2e4\uc740 \ub354 \ud070 \ubb38\uc81c\uac00 \ub429\ub2c8\ub2e4. \uace0\uc18d \uc124\uacc4 \ubcf4\ub4dc \uc7ac\ub8cc\ub294 FR-4\ubcf4\ub2e4 \ud6e8\uc52c \ub0ae\uc740 \uc190\uc2e4 \uacc4\uc218\ub97c \uac00\uc9c0\uba70, \uac70\uc758 \uc21c\uc218\uc5d0 \uac00\uae4c\uc6b4 PTFE \ub77c\ubbf8\ub124\uc774\ud2b8\uc640 \uac19\uc740 \uc77c\ubd80 \uc7ac\ub8cc\ub294 \ud6e8\uc52c \ub354 \uc6b0\uc218\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub0ae\uc740 \uc190\uc2e4 \uacc4\uc218\ub294 \uc2e0\ud638 \uc190\uc2e4\uc744 \uc904\uc774\ub294 \ub370 \uc911\uc694\ud55c \ubd80\ubd84\uc785\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\ub354 \uc5c4\uaca9\ud55c \uc784\ud53c\ub358\uc2a4 \uc81c\uc5b4.<\/strong>\u00a0FR-4\uc640 \uac19\uc740 \uae30\uc874 PCB \uc7ac\ub8cc\ub294 \uace0\uc18d \ubcf4\ub4dc \uc7ac\ub8cc\ub9cc\ud07c \uc720\uc804\uc728(Dk)\uc744 \uc81c\uc5b4\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. FR-4 Dk\ub294 +\/- 10% \uc774\uc0c1 \ubcc0\ud654\ud560 \uc218 \uc788\ub294 \ubc18\uba74, PTFE\uc640 \uac19\uc740 \uc18c\uc7ac\ub294 +\/- 2% \uc774\uc0c1\uc758 Dk \ud5c8\uc6a9 \uc624\ucc28\ub97c \uc720\uc9c0\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc5f4 \uad00\ub9ac \uac1c\uc120.<\/strong>\u00a0\uc5f4\uacbd\ud654\uc131 \ud0c4\ud654\uc218\uc18c \ub77c\ubbf8\ub124\uc774\ud2b8\uc640 \uac19\uc740 \uc77c\ubd80 \uace0\uc18d \uc124\uacc4 \ubcf4\ub4dc \uc7ac\ub8cc\ub294 FR-4\ubcf4\ub2e4 \uc5f4\uc804\ub3c4\uc728\uc774 \ud6e8\uc52c \uc6b0\uc218\ud569\ub2c8\ub2e4. \uc124\uacc4\uc5d0 \uc5f4 \uad00\ub9ac \ubb38\uc81c\uac00 \uc788\ub294 \uacbd\uc6b0 \uc774\ub7ec\ud55c \ubcf4\ub4dc \uc7ac\ub8cc\ub97c \uace0\ub824\ud574 \ubcfc \uac00\uce58\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uc218\ubd84 \ud761\uc218\uc728\uc774 \ub0ae\uc2b5\ub2c8\ub2e4.<\/strong>\u00a0\ubb3c\uc740 \uc720\uc804\uccb4 \ud2b9\uc131\uc744 \uac00\uc9c0\uace0 \uc788\uc73c\uba70, \uace0\uc8fc\ud30c \ud68c\ub85c\uac00 \uc788\ub294 PCB\uc5d0 \uc18c\ub7c9\uc758 \uc218\ubd84\ub9cc \ud761\uc218\ub418\uc5b4\ub3c4 \ud574\ub2f9 \ud68c\ub85c\uc758 \uc804\uae30\uc801 \uc131\ub2a5\uc774 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. FR-4\uc758 \uc218\ubd84 \ud761\uc218\uc728\uc740 50%\uc5d0 \uac00\uae5d\uc9c0\ub9cc, \uc77c\ubd80 PTFE \uc18c\uc7ac\ub294 2%\uae4c\uc9c0 \ub0ae\uae30 \ub54c\ubb38\uc5d0 \uc774 \ubb38\uc81c\ub97c \uace0\ub824\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>\uce58\uc218 \uc548\uc815\uc131\uc774 \ud5a5\uc0c1\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/strong>\u00a0\uacf5\ucc28\uac00 \uc5c4\uaca9\ud55c \uace0\ubc00\ub3c4 \uace0\uc18d \uc124\uacc4\uc758 \uacbd\uc6b0 \uce58\uc218 \uc548\uc815\uc131\uc758 \ud544\uc694\uc131\uc774 \ub354\uc6b1 \uc911\uc694\ud574\uc9d1\ub2c8\ub2e4. FR-4\ub294 \uce58\uc218 \uc548\uc815\uc131\uc73c\ub85c \uc798 \uc54c\ub824\uc838 \uc788\uc9c0\ub9cc, \uace0\uc18d \uc18c\uc7ac\uac00 \uc81c\uacf5\ud558\ub294 \ub2e4\ub978 \uc7a5\uc810\uc740 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uc5f4\uacbd\ud654\uc131 \ud0c4\ud654\uc218\uc18c \ub77c\ubbf8\ub124\uc774\ud2b8\uac00 \ub354 \ub098\uc740 \uc120\ud0dd\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>When we take on a project that is outside our comfort zone, we have all been there at one time [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4969,"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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