{"id":4793,"date":"2026-03-10T09:15:37","date_gmt":"2026-03-10T09:15:37","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4793"},"modified":"2026-03-10T09:15:39","modified_gmt":"2026-03-10T09:15:39","slug":"aluminum-pcb-design-thermal-management-guide","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/vi\/aluminum-pcb-design-thermal-management-guide\/","title":{"rendered":"Thi\u1ebft k\u1ebf m\u1ea1ch in nh\u00f4m (Aluminum PCB): H\u01b0\u1edbng d\u1eabn qu\u1ea3n l\u00fd nhi\u1ec7t"},"content":{"rendered":"

H\u01b0\u1edbng d\u1eabn thi\u1ebft k\u1ebf PCB nh\u00f4m: T\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t cho thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f4ng su\u1ea5t.<\/h2>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t sinh ra l\u01b0\u1ee3ng nhi\u1ec7t \u0111\u00e1ng k\u1ec3 \u2014 v\u00e0 n\u1ebfu nhi\u1ec7t \u0111\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd \u0111\u00fang c\u00e1ch, hi\u1ec7u su\u1ea5t s\u1ebd gi\u1ea3m s\u00fat, c\u00e1c linh ki\u1ec7n s\u1ebd h\u1ecfng s\u1edbm v\u00e0 to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. B\u1ea3ng m\u1ea1ch in b\u1eb1ng nh\u00f4m<\/a><\/strong> gi\u1ea3i quy\u1ebft th\u00e1ch th\u1ee9c n\u00e0y b\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p l\u00f5i kim lo\u1ea1i tr\u1ef1c ti\u1ebfp v\u00e0o c\u1ea5u tr\u00fac b\u1ea3ng m\u1ea1ch, t\u1ea1o ra m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t gi\u00fap t\u1ea3n nhi\u1ec7t kh\u1ecfi c\u00e1c linh ki\u1ec7n nh\u1ea1y c\u1ea3m hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng B\u1ea3ng m\u1ea1ch FR-4<\/a>.<\/p>\n\n\n\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c b\u1ea3ng m\u1ea1ch in (PCB) th\u00f4ng th\u01b0\u1eddng s\u1eed d\u1ee5ng ch\u1ea5t n\u1ec1n s\u1ee3i th\u1ee7y tinh c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t k\u00e9m (kho\u1ea3ng 0,3 W\/mK), B\u1ea3ng m\u1ea1ch in nh\u00f4m c\u00f3 l\u1edbp n\u1ec1n kim lo\u1ea1i<\/a> c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t hi\u1ec7u qu\u1ea3 g\u1ea5p 5\u201310 l\u1ea7n. S\u1ef1 kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n n\u00e0y \u0111\u00e3 thay \u0111\u1ed5i c\u00e1ch c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ti\u1ebfp c\u1eadn v\u1ea5n \u0111\u1ec1 qu\u1ea3n l\u00fd nhi\u1ec7t trong c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 chi\u1ebfu s\u00e1ng LED, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n v\u00e0 \u0111i\u1ec7n t\u1eed \u00f4 t\u00f4 \u2014 nh\u1eefng l\u0129nh v\u1ef1c m\u00e0 kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady v\u00e0 tu\u1ed5i th\u1ecd s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

L\u1ee3i th\u1ebf v\u1ec1 nhi\u1ec7t kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf v\u1eadt li\u1ec7u n\u1ec1n. C\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf nh\u01b0 chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng k\u1ebb<\/strong>, \u0111\u1ed9 d\u00e0y c\u1ee7a l\u1edbp \u0111\u1ed3ng v\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn l\u1edbp \u0111i\u1ec7n m\u00f4i \u0111\u1ec1u ph\u1ed1i h\u1ee3p v\u1edbi l\u1edbp n\u1ec1n nh\u00f4m \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a d\u00f2ng nhi\u1ec7t. C\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y thi\u1ebft k\u1ebf nhi\u1ec7t h\u1ee3p l\u00fd c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng<\/a> gi\u1ea3m 30\u201350\u00b0C so v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch ti\u00eau chu\u1ea9n \u2014 s\u1ef1 ch\u00eanh l\u1ec7ch n\u00e0y gi\u00fap k\u00e9o d\u00e0i \u0111\u00e1ng k\u1ec3 tu\u1ed5i th\u1ecd c\u1ee7a linh ki\u1ec7n trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch c\u00e1c b\u1ea3ng m\u1ea1ch in nh\u00f4m (PCB) x\u1eed l\u00fd \u1ee9ng su\u1ea5t nhi\u1ec7t s\u1ebd t\u1ea1o n\u1ec1n t\u1ea3ng cho c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf hi\u1ec7u qu\u1ea3, gi\u00fap c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t, chi ph\u00ed v\u00e0 kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a b\u1ea3ng m\u1ea1ch in nh\u00f4m: C\u1ea5u tr\u00fac v\u00e0 \u01b0u \u0111i\u1ec3m v\u1ec1 v\u1eadt li\u1ec7u<\/h2>\n\n\n\n

Vi\u1ec7c t\u00ecm hi\u1ec3u c\u1ea5u tr\u00fac nhi\u1ec1u l\u1edbp c\u1ee7a b\u1ea3ng m\u1ea1ch in nh\u00f4m gi\u00fap gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao ch\u00fang l\u1ea1i v\u01b0\u1ee3t tr\u1ed9i trong vi\u1ec7c qu\u1ea3n l\u00fd nhi\u1ec7t. Kh\u00e1c v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch FR-4 ti\u00eau chu\u1ea9n, B\u1ea3ng m\u1ea1ch in nh\u00f4m c\u00f3 l\u00f5i kim lo\u1ea1i<\/a> \u0111i\u1ec1u n\u00e0y l\u00e0m thay \u0111\u1ed5i c\u01a1 b\u1ea3n c\u00e1ch nhi\u1ec7t l\u01b0\u1ee3ng truy\u1ec1n qua c\u1ee5m linh ki\u1ec7n.<\/p>\n\n\n\n

C\u1ea5u tr\u00fac \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m ba l\u1edbp ch\u00ednh: l\u1edbp m\u1ea1ch \u0111\u1ed3ng n\u01a1i l\u1eafp \u0111\u1eb7t c\u00e1c linh ki\u1ec7n, l\u1edbp \u0111i\u1ec7n m\u00f4i d\u1eabn nhi\u1ec7t gi\u00fap c\u00e1ch ly \u0111i\u1ec7n \u0111\u1ed3ng th\u1eddi cho ph\u00e9p truy\u1ec1n nhi\u1ec7t, v\u00e0 t\u1ea5m \u0111\u1ebf nh\u00f4m \u0111\u00f3ng vai tr\u00f2 l\u00e0 b\u1ed9 t\u1ea3n nhi\u1ec7t ch\u00ednh. \u0110\u1ed9 d\u00e0y c\u1ee7a t\u1ea5m n\u1ec1n nh\u00f4m th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 1 \u0111\u1ebfn 3 mm<\/a>, v\u1eeba \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 c\u1ee9ng c\u01a1 h\u1ecdc v\u1eeba mang l\u1ea1i hi\u1ec7u su\u1ea5t c\u00e1ch nhi\u1ec7t.<\/p>\n\n\n\n

L\u1edbp \u0111i\u1ec7n m\u00f4i l\u00e0 n\u01a1i Thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m<\/strong> tr\u1edf n\u00ean th\u00fa v\u1ecb. Lo\u1ea1i v\u1eadt li\u1ec7u chuy\u00ean d\u1ee5ng n\u00e0y ph\u1ea3i v\u1eeba \u0111\u1ea3m b\u1ea3o c\u00e1ch \u0111i\u1ec7n \u2014 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng ch\u1eadp m\u1ea1ch v\u1edbi l\u00f5i kim lo\u1ea1i \u2014 v\u1eeba d\u1eabn nhi\u1ec7t hi\u1ec7u qu\u1ea3. C\u00e1c v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i hi\u1ec7n \u0111\u1ea1i \u0111\u1ea1t \u0111\u01b0\u1ee3c h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t trong kho\u1ea3ng 1\u20138 W\/mK, v\u01b0\u1ee3t tr\u1ed9i h\u1eb3n so v\u1edbi m\u1ee9c 0,3 W\/mK c\u1ee7a v\u1eadt li\u1ec7u FR-4 ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

L\u1ed7 d\u1eabn nhi\u1ec7t<\/strong> N\u00e2ng cao hi\u1ec7u qu\u1ea3 c\u1ee7a c\u1ea5u tr\u00fac n\u00e0y h\u01a1n n\u1eefa b\u1eb1ng c\u00e1ch t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t d\u1ecdc qua c\u00e1c l\u1edbp \u0111\u1ed3ng v\u00e0 l\u1edbp c\u00e1ch \u0111i\u1ec7n, d\u1eabn nhi\u1ec7t t\u1eadp trung tr\u1ef1c ti\u1ebfp xu\u1ed1ng \u0111\u1ebf nh\u00f4m. C\u00e1ch ti\u1ebfp c\u1eadn theo l\u1edbp n\u00e0y t\u1ea1o ra c\u00e1i m\u00e0 c\u00e1c k\u1ef9 s\u01b0 g\u1ecdi l\u00e0 \u201c\u0111\u01b0\u1eddng cao t\u1ed1c nhi\u1ec7t\u201d \u2014 m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn c\u00f3 \u0111i\u1ec7n tr\u1edf th\u1ea5p gi\u00fap d\u1eabn nhi\u1ec7t ra kh\u1ecfi c\u00e1c linh ki\u1ec7n quan tr\u1ecdng tr\u01b0\u1edbc khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng l\u00ean m\u1ee9c nguy hi\u1ec3m.<\/p>\n\n\n\n

C\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf ch\u00ednh \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n

Hi\u1ec7u qu\u1ea3 t\u1ea3n nhi\u1ec7t<\/strong> Vi\u1ec7c thi\u1ebft k\u1ebf PCB nh\u00f4m \u0111\u00f2i h\u1ecfi nh\u1eefng quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c nh\u1eb1m t\u1ed1i \u01b0u h\u00f3a c\u00e1c \u0111\u01b0\u1eddng d\u1eabn truy\u1ec1n nhi\u1ec7t. Nguy\u00ean t\u1eafc quan tr\u1ecdng nh\u1ea5t l\u00e0 gi\u1ea3m thi\u1ec3u \u0111i\u1ec7n tr\u1edf nhi\u1ec7t gi\u1eefa c\u00e1c linh ki\u1ec7n sinh nhi\u1ec7t v\u00e0 l\u1edbp n\u1ec1n nh\u00f4m \u2014 \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ph\u1ea3i duy tr\u00ec \u0111\u1ed9 d\u00e0y c\u1ee7a \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ed3ng (th\u01b0\u1eddng d\u00f9ng \u0111\u1ed3ng 2-3 oz) v\u00e0 b\u1ed1 tr\u00ed c\u00e1c linh ki\u1ec7n c\u00f4ng su\u1ea5t cao ngay tr\u00ean c\u00e1c khu v\u1ef1c c\u00f3 di\u1ec7n t\u00edch ti\u1ebfp x\u00fac nhi\u1ec7t t\u1ed1i \u0111a.<\/p>\n\n\n\n

V\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t linh ki\u1ec7n c\u00f3 \u00fd ngh\u0129a v\u00f4 c\u00f9ng quan tr\u1ecdng. C\u1ea7n b\u1ed1 tr\u00ed c\u00e1c linh ki\u1ec7n sinh nhi\u1ec7t nh\u01b0 MOSFET c\u00f4ng su\u1ea5t, b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p v\u00e0 \u0111\u00e8n LED v\u1edbi kho\u1ea3ng c\u00e1ch \u0111\u1ee7 r\u1ed9ng \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng can thi\u1ec7p nhi\u1ec7t. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c ti\u1ec5n l\u00e0 duy tr\u00ec kho\u1ea3ng c\u00e1ch \u00edt nh\u1ea5t 10 mm gi\u1eefa c\u00e1c linh ki\u1ec7n c\u00f4ng su\u1ea5t cao khi c\u00f3 th\u1ec3, gi\u00fap nhi\u1ec7t lan t\u1ecfa theo chi\u1ec1u ngang qua l\u1edbp c\u00e1ch \u0111i\u1ec7n tr\u01b0\u1edbc khi truy\u1ec1n sang \u0111\u1ebf nh\u00f4m. V\u1ecb tr\u00ed \u0111\u1eb7t l\u1ed7 d\u1eabn nhi\u1ec7t chi\u1ebfn l\u01b0\u1ee3c<\/a> gi\u00fap t\u0103ng c\u01b0\u1eddng h\u01a1n n\u1eefa qu\u00e1 tr\u00ecnh truy\u1ec1n nhi\u1ec7t theo chi\u1ec1u d\u1ecdc trong c\u00e1c thi\u1ebft k\u1ebf nhi\u1ec1u l\u1edbp. \u0110\u1ed9 d\u00e0y c\u1ee7a l\u1edbp \u0111i\u1ec7n m\u00f4i \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t nhi\u1ec7t \u2014 c\u00e1c l\u1edbp m\u1ecfng h\u01a1n (th\u01b0\u1eddng t\u1eeb 3\u20136 mil) mang l\u1ea1i \u0111\u1ed9 d\u1eabn nhi\u1ec7t t\u1ed1t h\u01a1n nh\u01b0ng l\u1ea1i l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n. \u0110\u1ec3 c\u00e2n b\u1eb1ng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i n\u00e0y, h\u00e3y l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u \u0111i\u1ec7n \u00e1p c\u1ee7a b\u1ea1n \u0111\u1ed3ng th\u1eddi duy tr\u00ec \u0111\u1ed9 d\u1eabn nhi\u1ec7t \u1edf m\u1ee9c tr\u00ean 2 W\/m\u00b7K. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng quy \u0111\u1ecbnh \u0111\u1ed9 d\u00e0y l\u1edbp \u0111i\u1ec7n m\u00f4i cao h\u01a1n m\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o bi\u00ean \u0111\u1ed9 an to\u00e0n, v\u00f4 t\u00ecnh t\u1ea1o ra c\u00e1c \u0111i\u1ec3m ngh\u1ebdn nhi\u1ec7t.<\/p>\n\n\n\n

H\u00e3y thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m c\u1ee7a b\u1ea1n v\u1edbi vi\u1ec7c t\u00ednh \u0111\u1ebfn to\u00e0n b\u1ed9 \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t \u2014 t\u1eeb \u0111i\u1ec3m n\u1ed1i c\u1ee7a linh ki\u1ec7n \u0111\u1ebfn kh\u00f4ng kh\u00ed xung quanh.<\/strong><\/p>\n\n\n\n

So s\u00e1nh c\u00e1c k\u1ef9 thu\u1eadt t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n

Qu\u1ea3n l\u00fd nhi\u1ec7t<\/strong> C\u00e1c chi\u1ebfn l\u01b0\u1ee3c trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf vi\u1ec7c l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u. M\u1eb7c d\u00f9 b\u1ea3ng m\u1ea1ch in b\u1eb1ng nh\u00f4m c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u1ed1n c\u00f3, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf v\u1eabn c\u1ea7n \u0111\u00e1nh gi\u00e1 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p t\u1ea3n nhi\u1ec7t kh\u00e1c nhau \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n

L\u00e0m m\u00e1t th\u1ee5 \u0111\u1ed9ng<\/strong> v\u1edbi ch\u1ea5t n\u1ec1n nh\u00f4m th\u01b0\u1eddng c\u00f3 th\u1ec3 x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 m\u1eadt \u0111\u1ed9 nhi\u1ec7t 2\u20135 W\/cm\u00b2 m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1c th\u00e0nh ph\u1ea7n b\u1ed5 sung. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng chi\u1ebfu s\u00e1ng \u00f4 t\u00f4 v\u00e0 \u0111\u00e8n LED, n\u01a1i c\u00e1c gi\u1ea3i ph\u00e1p ch\u1ee7 \u0111\u1ed9ng b\u1ecb h\u1ea1n ch\u1ebf do kh\u00f4ng gian h\u1eb9p. Tuy nhi\u00ean, thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t cao \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t cao h\u01a1n<\/a> th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi ph\u1ea3i \u00e1p d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt b\u1ed5 sung.<\/p>\n\n\n\n

\"led<\/figure>\n\n\n\n

H\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng<\/strong>\u2014qu\u1ea1t ho\u1eb7c h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t b\u1eb1ng ch\u1ea5t l\u1ecfng\u2014c\u00f3 th\u1ec3 n\u00e2ng c\u00f4ng su\u1ea5t t\u1ea3n nhi\u1ec7t l\u00ean tr\u00ean 10W\/cm\u00b2 nh\u01b0ng l\u1ea1i l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc v\u00e0 t\u1ea1o ra c\u00e1c \u0111i\u1ec3m c\u00f3 th\u1ec3 x\u1ea3y ra s\u1ef1 c\u1ed1. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn l\u00e0 k\u1ebft h\u1ee3p b\u1ea3ng m\u1ea1ch in (PCB) b\u1eb1ng nh\u00f4m v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t c\u00f3 c\u00e1nh t\u1ea3n nhi\u1ec7t, \u0111i\u1ec1u n\u00e0y t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u00ean 300\u2013400 l\u1ea7n so v\u1edbi c\u00e1c t\u1ea5m ph\u1eb3ng<\/a>. Ph\u01b0\u01a1ng ph\u00e1p k\u1ebft h\u1ee3p n\u00e0y gi\u00fap c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n

Y\u1ebfu t\u1ed1 ph\u00e2n bi\u1ec7t quan tr\u1ecdng nh\u1ea5t v\u1eabn l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t.<\/strong> C\u00e1c b\u1ea3ng m\u1ea1ch FR-4 ti\u00eau chu\u1ea9n c\u00f3 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t kho\u1ea3ng 20\u201330\u00b0C\/W, trong khi b\u1ea3ng m\u1ea1ch in nh\u00f4m (PCB) \u0111\u1ea1t 1\u20132\u00b0C\/W \u2014 m\u1ed9t s\u1ef1 c\u1ea3i thi\u1ec7n g\u1ea5p m\u01b0\u1eddi l\u1ea7n. \u0110\u1ed1i v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n v\u00e0 b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1, s\u1ef1 ch\u00eanh l\u1ec7ch n\u00e0y quy\u1ebft \u0111\u1ecbnh li\u1ec7u l\u00e0m m\u00e1t th\u1ee5 \u0111\u1ed9ng c\u00f3 \u0111\u1ee7 hay c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t ch\u1ee7 \u0111\u1ed9ng.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd trong thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t<\/h2>\n\n\n\n

\u0110i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t<\/strong> C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi ph\u1ea3i ch\u00fa tr\u1ecdng c\u1ea3 \u0111\u1ebfn kh\u1ea3 n\u0103ng c\u00e1ch ly \u0111i\u1ec7n l\u1eabn hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t. L\u1edbp \u0111i\u1ec7n m\u00f4i trong b\u1ea3ng m\u1ea1ch in nh\u00f4m (PCB) c\u00f3 hai ch\u1ee9c n\u0103ng: v\u1eeba ph\u1ea3i truy\u1ec1n nhi\u1ec7t hi\u1ec7u qu\u1ea3, v\u1eeba ph\u1ea3i duy tr\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu \u0111i\u1ec7n \u00e1p ph\u00e1 v\u1ee1 cao \u2014 th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 2.000V \u0111\u1ebfn 3.000V t\u00f9y theo y\u00eau c\u1ea7u c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

Vi\u1ec7c b\u1ed1 tr\u00ed linh ki\u1ec7n tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c thi\u1ebft k\u1ebf c\u00f4ng su\u1ea5t cao. H\u00e3y \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb sinh nhi\u1ec7t nh\u01b0 MOSFET, IGBT v\u00e0 b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec7n \u00e1p ngay tr\u00ean \u0111\u1ebf nh\u00f4m \u0111\u1ec3 gi\u1ea3m thi\u1ec3u \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n tr\u1edf nhi\u1ec7t. C\u00e1c c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch nhi\u1ec7t<\/a> c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c \u0111i\u1ec3m n\u00f3ng tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t, gi\u00fap c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ch\u1ee7 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh b\u1ed1 c\u1ee5c thay v\u00ec ph\u00e1t hi\u1ec7n ra v\u1ea5n \u0111\u1ec1 trong qu\u00e1 tr\u00ecnh ch\u1ebf t\u1ea1o m\u1eabu th\u1eed. \u0110\u1ed9 d\u00e0y \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ed3ng c\u1ea7n \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u1ea1i \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ea5m n\u1ec1n nh\u00f4m. Trong khi c\u00e1c b\u1ea3ng m\u1ea1ch in (PCB) ti\u00eau chu\u1ea9n th\u01b0\u1eddng s\u1eed d\u1ee5ng l\u1edbp \u0111\u1ed3ng 1\u20132 oz, c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t th\u01b0\u1eddng c\u1ea7n l\u1edbp \u0111\u1ed3ng 3\u20134 oz \u0111\u1ec3 x\u1eed l\u00fd m\u1eadt \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n cao h\u01a1n. Tuy nhi\u00ean, l\u1edbp \u0111\u1ed3ng d\u00e0y h\u01a1n l\u00e0m t\u0103ng \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t\u2014c\u00e1c nh\u00f3m thi\u1ebft k\u1ebf ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n v\u00e0 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 hi\u1ec7u su\u1ea5t nhi\u1ec7t<\/a> khi x\u00e1c \u0111\u1ecbnh c\u00e1c th\u00f4ng s\u1ed1 theo d\u00f5i.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd trong qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p b\u1ec1 m\u1eb7t c\u0169ng thay \u0111\u1ed5i khi s\u1eed d\u1ee5ng ch\u1ea5t n\u1ec1n nh\u00f4m, do ch\u1ea5t n\u1ec1n kim lo\u1ea1i n\u00e0y l\u00e0m thay \u0111\u1ed5i \u0111\u01b0\u1eddng cong nhi\u1ec7t \u0111\u1ed9 h\u00e0n l\u1ea1i v\u00e0 c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh c\u00e1c th\u00f4ng s\u1ed1 h\u00e0n \u0111\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng cong v\u00eanh ho\u1eb7c bong tr\u00f3c trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t trong thi\u1ebft k\u1ebf m\u1ea1ch in nh\u00f4m<\/h2>\n\n\n\n

V\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t linh ki\u1ec7n<\/strong> c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t trong thi\u1ebft k\u1ebf PCB nh\u00f4m. N\u00ean b\u1ed1 tr\u00ed c\u00e1c linh ki\u1ec7n c\u00f4ng su\u1ea5t cao \u1edf nh\u1eefng v\u1ecb tr\u00ed c\u00f3 th\u1ec3 truy\u1ec1n nhi\u1ec7t hi\u1ec7u qu\u1ea3 nh\u1ea5t sang l\u1edbp n\u1ec1n nh\u00f4m, th\u01b0\u1eddng tr\u00e1nh c\u00e1c m\u00e9p bo m\u1ea1ch n\u01a1i \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t b\u1ecb h\u1ea1n ch\u1ebf. M\u1ed9t c\u00e1ch b\u1ed1 tr\u00ed ph\u1ed5 bi\u1ebfn l\u00e0 t\u1eadp trung c\u00e1c linh ki\u1ec7n sinh nhi\u1ec7t \u1edf gi\u1eefa bo m\u1ea1ch, gi\u00fap nhi\u1ec7t lan t\u1ecfa ra ngo\u00e0i theo h\u01b0\u1edbng t\u00e2m.<\/p>\n\n\n\n

Theo d\u00f5i l\u1ed9 tr\u00ecnh<\/strong> c\u1ea7n \u0111\u01b0\u1ee3c ch\u00fa \u00fd \u0111\u1eb7c bi\u1ec7t \u0111\u1ebfn B\u1ea3ng m\u1ea1ch in nh\u00f4m c\u00f3 c\u00f4ng su\u1ea5t hi\u1ec7n t\u1ea1i<\/strong> c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c. C\u00e1c \u0111\u01b0\u1eddng m\u1ea1ch r\u1ed9ng h\u01a1n gi\u00fap gi\u1ea3m \u0111i\u1ec7n tr\u1edf v\u00e0 gi\u1ea3m sinh nhi\u1ec7t, nh\u01b0ng \u0111\u1ed3ng th\u1eddi c\u0169ng c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t sang \u0111\u1ebf nh\u00f4m. Qu\u1ea3n l\u00fd nhi\u1ec7t ti\u00ean ti\u1ebfn<\/a> C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y khuy\u1ebfn ngh\u1ecb duy tr\u00ec kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u 0,5 mm gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng \u0111i\u1ec7n cao \u0111\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u nhi\u1ec7t \u0111\u1ed3ng th\u1eddi t\u1ed1i \u0111a h\u00f3a di\u1ec7n t\u00edch ph\u1ee7 \u0111\u1ed3ng nh\u1eb1m ph\u00e2n t\u00e1n nhi\u1ec7t.<\/p>\n\n\n\n

Th\u00f4ng qua vi\u1ec7c s\u1eafp x\u1ebfp<\/strong> gi\u00fap t\u0103ng c\u01b0\u1eddng truy\u1ec1n nhi\u1ec7t t\u1ea1i c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac gi\u1eefa c\u00e1c l\u1edbp FR-4 v\u00e0 n\u1ec1n nh\u00f4m trong c\u00e1c thi\u1ebft k\u1ebf lai. Tuy nhi\u00ean, c\u1ea7n tr\u00e1nh l\u1ea1m d\u1ee5ng c\u00e1c l\u1ed7 vias g\u1ea7n c\u00e1c linh ki\u1ec7n nh\u1ea1y c\u1ea3m \u2014 vi\u1ec7c s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u l\u1ed7 vias c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t kh\u00f4ng mong mu\u1ed1n, khi\u1ebfn nhi\u1ec7t t\u1eadp trung t\u1ea1i c\u00e1c khu v\u1ef1c c\u1ee5c b\u1ed9. S\u1ef1 c\u00e2n b\u1eb1ng n\u1eb1m \u1edf vi\u1ec7c b\u1ed1 tr\u00ed chi\u1ebfn l\u01b0\u1ee3c, n\u01a1i l\u1ee3i \u00edch v\u1ec1 \u0111\u1ed9 d\u1eabn nhi\u1ec7t v\u01b0\u1ee3t tr\u1ed9i h\u01a1n r\u1ee7i ro ti\u1ec1m \u1ea9n t\u1eeb c\u00e1c \u0111i\u1ec3m n\u00f3ng, \u0111\u1ed3ng th\u1eddi c\u1ea7n xem x\u00e9t c\u00e1c k\u1ecbch b\u1ea3n v\u1edbi c\u00e1c m\u1ee9c c\u00f4ng su\u1ea5t kh\u00e1c nhau.<\/p>\n\n\n\n

C\u00e1c t\u00ecnh hu\u1ed1ng v\u00ed d\u1ee5: Thi\u1ebft k\u1ebf cho c\u00e1c m\u1ee9c c\u00f4ng su\u1ea5t kh\u00e1c nhau<\/h2>\n\n\n\n

Y\u00eau c\u1ea7u v\u1ec1 m\u1ee9c c\u00f4ng su\u1ea5t c\u00f3 \u1ea3nh h\u01b0\u1edfng quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn c\u00e1c quy\u1ebft \u0111\u1ecbnh thi\u1ebft k\u1ebf PCB nh\u00f4m. M\u1ed9t \u1ee9ng d\u1ee5ng chi\u1ebfu s\u00e1ng LED c\u00f4ng su\u1ea5t th\u1ea5p (5\u201310W) th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u1edbi t\u1ea5m n\u1ec1n nh\u00f4m ti\u00eau chu\u1ea9n d\u00e0y 1,5 mm v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n \u0111\u1ed9 d\u1eabn nhi\u1ec7t<\/strong> h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t kho\u1ea3ng 1,0\u20132,0 W\/m\u00b7K trong l\u1edbp \u0111i\u1ec7n m\u00f4i. Kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c linh ki\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thu h\u1eb9p h\u01a1n, v\u00e0 \u0111\u1ebf nh\u00f4m \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t \u0111\u1ee7 t\u1ed1t m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1c t\u00ednh n\u0103ng qu\u1ea3n l\u00fd nhi\u1ec7t b\u1ed5 sung.<\/p>\n\n\n\n

Thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t t\u1ea7m trung (50\u2013100 W) \u0111\u00f2i h\u1ecfi nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn mang t\u00ednh chi\u1ebfn l\u01b0\u1ee3c h\u01a1n. B\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 v\u00e0 b\u1ed9 ngu\u1ed3n<\/a> c\u00e1c s\u1ea3n ph\u1ea9m thu\u1ed9c danh m\u1ee5c n\u00e0y \u0111\u01b0\u1ee3c trang b\u1ecb l\u1edbp \u0111\u1ed3ng d\u00e0y h\u01a1n (3\u20134 oz) v\u00e0 v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n (2,0\u20133,0 W\/m\u00b7K). C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf n\u00ean b\u1ed1 tr\u00ed c\u00e1c linh ki\u1ec7n t\u1ecfa nhi\u1ec7t cao g\u1ea7n m\u00e9p bo m\u1ea1ch, n\u01a1i nhi\u1ec7t c\u00f3 th\u1ec3 tho\u00e1t ra d\u1ec5 d\u00e0ng h\u01a1n, \u0111\u1ed3ng th\u1eddi c\u00e2n nh\u1eafc t\u0103ng \u0111\u1ed9 d\u00e0y bo m\u1ea1ch l\u00ean 2,0\u20132,5 mm \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t.<\/p>\n\n\n\n

C\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng su\u1ea5t cao v\u01b0\u1ee3t qu\u00e1 200W \u0111\u00f2i h\u1ecfi ph\u1ea3i t\u1ed1i \u01b0u h\u00f3a nhi\u1ec7t m\u1ed9t c\u00e1ch tri\u1ec7t \u0111\u1ec3. C\u00e1c thi\u1ebft k\u1ebf n\u00e0y th\u01b0\u1eddng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u \u0111i\u1ec7n m\u00f4i cao c\u1ea5p c\u00f3 \u0111\u1ed9 d\u1eabn nhi\u1ec7t tr\u00ean 3,0 W\/m\u00b7K, tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1ed3ng t\u1ed1i \u0111a (5\u20136 oz) v\u00e0 l\u1ed7 d\u1eabn nhi\u1ec7t chuy\u00ean d\u1ee5ng<\/strong> k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac c\u1ee7a linh ki\u1ec7n v\u1edbi \u0111\u1ebf nh\u00f4m. \u0110\u1ed9 d\u00e0y c\u1ee7a b\u1ea3ng m\u1ea1ch c\u00f3 th\u1ec3 l\u00ean t\u1edbi 3,0 mm, v\u00e0 c\u00e1c thi\u1ebft k\u1ebf th\u01b0\u1eddng t\u00edch h\u1ee3p c\u00e1c chi ti\u1ebft l\u1eafp \u0111\u1eb7t nh\u1eb1m \u0111\u1ea3m b\u1ea3o ti\u1ebfp x\u00fac c\u01a1 h\u1ecdc tr\u1ef1c ti\u1ebfp gi\u1eefa \u0111\u1ebf nh\u00f4m v\u00e0 c\u00e1c b\u1ed9 t\u1ea3n nhi\u1ec7t b\u00ean ngo\u00e0i.<\/p>\n\n\n\n

Nh\u1eefng h\u1ea1n ch\u1ebf v\u00e0 y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd trong thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m<\/h2>\n\n\n\n

M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m v\u1ec1 m\u1eb7t nhi\u1ec7t, c\u00e1c b\u1ea3ng m\u1ea1ch in b\u1eb1ng nh\u00f4m v\u1eabn ti\u1ec1m \u1ea9n nh\u1eefng h\u1ea1n ch\u1ebf m\u00e0 c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n ph\u1ea3i x\u1eed l\u00fd m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn. c\u1ea5u tr\u00fac m\u1ed9t l\u1edbp<\/strong> \u0110\u1eb7c t\u00ednh v\u1ed1n c\u00f3 c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c b\u1ea3ng m\u1ea1ch in nh\u00f4m (PCB) khi\u1ebfn kh\u1ea3 n\u0103ng b\u1ed1 tr\u00ed \u0111\u01b0\u1eddng d\u1eabn b\u1ecb h\u1ea1n ch\u1ebf so v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch nhi\u1ec1u l\u1edbp truy\u1ec1n th\u1ed1ng. H\u1ea1n ch\u1ebf n\u00e0y tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t kh\u00f3 kh\u0103n trong c\u00e1c b\u1ed1 c\u1ee5c m\u1ea1ch d\u00e0y \u0111\u1eb7c, n\u01a1i s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n v\u01b0\u1ee3t qu\u00e1 kh\u00f4ng gian b\u1ed1 tr\u00ed \u0111\u01b0\u1eddng d\u1eabn c\u00f3 s\u1eb5n.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 li\u00ean quan \u0111\u1ebfn chi ph\u00ed<\/strong> th\u01b0\u1eddng khi\u1ebfn nh\u1eefng ng\u01b0\u1eddi l\u1ea7n \u0111\u1ea7u s\u1eed d\u1ee5ng PCB nh\u00f4m c\u1ea3m th\u1ea5y ng\u1ea1c nhi\u00ean. Theo B\u1ea3ng m\u1ea1ch in nh\u00f4m \u2014 H\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh d\u00e0nh cho k\u1ef9 s\u01b0<\/a>, chi ph\u00ed nguy\u00ean v\u1eadt li\u1ec7u v\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng cao g\u1ea5p 2-3 l\u1ea7n so v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch FR-4 ti\u00eau chu\u1ea9n do c\u00e1c l\u1edbp \u0111i\u1ec7n m\u00f4i chuy\u00ean d\u1ee5ng v\u00e0 c\u00e1c y\u00eau c\u1ea7u x\u1eed l\u00fd \u0111\u1eb7c bi\u1ec7t. M\u1ee9c ch\u00eanh l\u1ec7ch gi\u00e1 n\u00e0y khi\u1ebfn b\u1ea3ng m\u1ea1ch in nh\u00f4m ch\u1ec9 th\u1ef1c s\u1ef1 mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf khi hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t \u0111\u1ee7 \u0111\u1ec3 b\u00f9 \u0111\u1eafp cho kho\u1ea3n \u0111\u1ea7u t\u01b0.<\/p>\n\n\n\n

C\u00e1c \u1ee9ng d\u1ee5ng PCB nh\u00f4m cao \u00e1p mang l\u1ea1i th\u00eam nhi\u1ec1u th\u00e1ch th\u1ee9c. L\u1edbp \u0111i\u1ec7n m\u00f4i ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00e1ch \u0111i\u1ec7n \u0111\u1ee7 t\u1ed1t \u0111\u1ed3ng th\u1eddi duy tr\u00ec kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t \u2014 m\u1ed9t s\u1ef1 c\u00e2n b\u1eb1ng \u0111\u00f2i h\u1ecfi ph\u1ea3i l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn. \u0110i\u1ec7n \u00e1p \u0111\u1ee9t \u0111i\u1ec7n m\u00f4i th\u00f4ng th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 2\u20133 kV, \u0111\u1ee7 cho h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t nh\u01b0ng c\u00f3 th\u1ec3 l\u00e0 h\u1ea1n ch\u1ebf \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u00e1p cao h\u01a1n.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 c\u01a1 kh\u00ed<\/strong> c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng. M\u1eb7c d\u00f9 nh\u00f4m mang l\u1ea1i \u0111\u1ed9 c\u1ee9ng v\u1eefng v\u1ec1 m\u1eb7t k\u1ebft c\u1ea5u, nh\u01b0ng n\u00f3 l\u1ea1i g\u00e2y kh\u00f3 kh\u0103n cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p l\u1eafp \u0111\u1eb7t \u0111\u00f2i h\u1ecfi bo m\u1ea1ch ph\u1ea3i c\u00f3 t\u00ednh linh ho\u1ea1t. Ph\u1ea7n \u0111\u1ebf kim lo\u1ea1i c\u0169ng d\u1eabn \u0111i\u1ec7n, do \u0111\u00f3 c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1c ch\u00e2n \u0111\u1ebf c\u00e1ch \u0111i\u1ec7n v\u00e0 thi\u1ebft k\u1ebf c\u01a1 kh\u00ed c\u1ea9n th\u1eadn \u0111\u1ec3 ng\u0103n ng\u1eeba ng\u1eafn m\u1ea1ch qua c\u00e1c b\u1ed9 ph\u1eadn l\u1eafp \u0111\u1eb7t. Nh\u1eefng h\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf n\u00e0y quy\u1ebft \u0111\u1ecbnh li\u1ec7u nh\u00f4m c\u00f3 c\u00f2n l\u00e0 l\u1ef1a ch\u1ecdn ch\u1ea5t n\u1ec1n t\u1ed1i \u01b0u hay kh\u00f4ng.<\/p>\n\n\n\n

Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n\n\n\n

Thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m cho \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t t\u1eadp trung v\u00e0o c\u00e2n b\u1eb1ng gi\u1eefa hi\u1ec7u su\u1ea5t nhi\u1ec7t v\u00e0 c\u00e1c h\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf<\/strong>. \u0110\u1ed9 d\u1eabn nhi\u1ec7t c\u1ee7a ch\u1ea5t n\u1ec1n \u2014 th\u01b0\u1eddng dao \u0111\u1ed9ng trong kho\u1ea3ng 1\u20138 W\/mK \u2014 c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u su\u1ea5t truy\u1ec1n nhi\u1ec7t; c\u00e1c gi\u00e1 tr\u1ecb cao h\u01a1n cho ph\u00e9p b\u1ed1 tr\u00ed c\u00e1c linh ki\u1ec7n g\u1ea7n nhau h\u01a1n v\u00e0 gi\u1ea3m \u0111i\u1ec7n tr\u1edf nhi\u1ec7t. \u0110\u1ed9 d\u00e0y c\u1ee7a \u0111\u1ed3ng<\/strong> Vi\u1ec7c l\u1ef1a ch\u1ecdn c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m, v\u00ec \u0111\u1ed3ng c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 2\u20133 oz c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng hi\u1ec7u qu\u1ea3 c\u00e1c \u1ee9ng d\u1ee5ng d\u00f2ng \u0111i\u1ec7n cao \u0111\u1ed3ng th\u1eddi duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u01a1 h\u1ecdc trong qu\u00e1 tr\u00ecnh thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/p>\n\n\n\n

Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a c\u1ea5u tr\u00fac m\u1ed9t l\u1edbp \u0111\u00f2i h\u1ecfi ph\u1ea3i b\u1ed1 tr\u00ed linh ki\u1ec7n m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb sinh nhi\u1ec7t nh\u01b0 MOSFET v\u00e0 \u0111i\u1ed1t c\u00f4ng su\u1ea5t. N\u00ean \u0111\u1eb7t c\u00e1c linh ki\u1ec7n n\u00e0y ngay tr\u00ean \u0111\u1ebf nh\u00f4m \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 k\u1ebft n\u1ed1i nhi\u1ec7t t\u1ed1i \u01b0u, \u0111\u1ed3ng th\u1eddi duy tr\u00ec kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p nh\u1eb1m tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng can thi\u1ec7p nhi\u1ec7t. \u0110\u1ed9 d\u00e0y c\u1ee7a l\u1edbp \u0111i\u1ec7n m\u00f4i \u2014 th\u01b0\u1eddng t\u1eeb 75 \u0111\u1ebfn 150\u03bcm \u2014 l\u00e0 m\u1ed9t s\u1ef1 c\u00e2n b\u1eb1ng quan tr\u1ecdng: l\u1edbp m\u1ecfng h\u01a1n gi\u00fap c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t nh\u01b0ng l\u1ea1i l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng c\u00e1ch ly \u0111i\u1ec7n.<\/p>\n\n\n\n

Khi c\u00e1c b\u1ea3ng m\u1ea1ch in nh\u00f4m kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t ph\u1ee9c t\u1ea1p, c\u00e1c l\u1ed7 d\u1eabn nhi\u1ec7t v\u00e0 thi\u1ebft k\u1ebf nhi\u1ec1u l\u1edbp v\u1edbi b\u1ed9 t\u1ea3n nhi\u1ec7t chuy\u00ean d\u1ee5ng<\/a> mang l\u1ea1i t\u00ednh linh ho\u1ea1t cao h\u01a1n. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea3ng \u0111\u00e8n LED c\u00f4ng su\u1ea5t cao, m\u00f4-\u0111un \u00f4 t\u00f4 v\u00e0 b\u1ed9 ngu\u1ed3n d\u01b0\u1edbi 100W, ch\u1ea5t n\u1ec1n nh\u00f4m mang l\u1ea1i hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u00e0 \u0111\u1ed9 tin c\u1eady v\u01b0\u1ee3t tr\u1ed9i. Th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c m\u00f4 ph\u1ecfng nhi\u1ec7t t\u1eeb giai \u0111o\u1ea1n \u0111\u1ea7u, l\u1eadp k\u1ebf ho\u1ea1ch c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf v\u00e0 s\u1ef1 h\u1ee3p t\u00e1c v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 x\u00e1c nh\u1eadn c\u00e1c l\u1ef1a ch\u1ecdn thi\u1ebft k\u1ebf tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n l\u01b0u \u00fd trong thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch in nh\u00f4m d\u00f9ng trong l\u0129nh v\u1ef1c \u0111i\u1ec7n<\/h2>\n\n\n\n

Gi\u1edbi thi\u1ec7u v\u1ec1 \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t c\u00e1c y\u00eau c\u1ea7u v\u1ec1 an to\u00e0n \u0111i\u1ec7n<\/strong> \u0111i\u1ec1u n\u00e0y g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c thi\u1ebft k\u1ebf n\u1ec1n nh\u00f4m. T\u1ea5m \u0111\u1ebf d\u1eabn \u0111i\u1ec7n \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi Kho\u1ea3ng c\u00e1ch c\u00e1ch \u0111i\u1ec7n d\u1ecdc theo \u0111\u01b0\u1eddng r\u00f2 tr\u00ean b\u1ea3ng m\u1ea1ch in nh\u00f4m<\/strong> c\u00e1c b\u1ea3n v\u1ebd b\u1ed1 tr\u00ed, trong \u0111\u00f3 c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u1ea3m b\u1ea3o kho\u1ea3ng c\u00e1ch th\u00edch h\u1ee3p gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n \u00e1p cao v\u00e0 l\u00f5i nh\u00f4m n\u1ed1i \u0111\u1ea5t. B\u1ea3ng m\u1ea1ch in nh\u00f4m \u2014 H\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh d\u00e0nh cho k\u1ef9 s\u01b0<\/a> \u0111i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi c\u00e1c l\u1edbp \u0111i\u1ec7n m\u00f4i ph\u1ea3i d\u00e0y h\u01a1n so v\u1edbi c\u00e1c lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng FR-4 \u2014 th\u01b0\u1eddng t\u1ed1i thi\u1ec3u l\u00e0 4\u20136 mil \u2014 d\u1eabn \u0111\u1ebfn gi\u1ea3m kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t.<\/p>\n\n\n\n

Vi\u1ec7c b\u1ed1 tr\u00ed linh ki\u1ec7n tr\u1edf n\u00ean \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng ngu\u1ed3n \u0111i\u1ec7n. V\u1ecb tr\u00ed thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t cao<\/strong> ngay ph\u00eda tr\u00ean c\u00e1c khu v\u1ef1c c\u00f3 \u0111\u01b0\u1eddng d\u1eabn t\u1ea3n nhi\u1ec7t t\u1ed1i \u01b0u, tr\u00e1nh c\u00e1c v\u00f9ng g\u1ea7n l\u1ed7 l\u1eafp \u0111\u1eb7t n\u01a1i \u0111i\u1ec7n tr\u1edf nhi\u1ec7t t\u0103ng cao. Vai tr\u00f2 c\u1ee7a b\u1ea3ng m\u1ea1ch in nh\u00f4m trong \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t<\/a> nh\u1ea5n m\u1ea1nh r\u1eb1ng vi\u1ec7c t\u00ednh to\u00e1n chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng d\u1eabn ph\u1ea3i t\u00ednh \u0111\u1ebfn c\u1ea3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng t\u1ea3n nhi\u1ec7t \u2014 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ed3ng c\u00f3 chi\u1ec1u r\u1ed9ng l\u1edbn h\u01a1n gi\u00fap t\u1ea3n nhi\u1ec7t hi\u1ec7u qu\u1ea3 h\u01a1n nh\u01b0ng l\u1ea1i chi\u1ebfm \u00edt di\u1ec7n t\u00edch tr\u00ean l\u1edbp m\u1ea1ch h\u01a1n.<\/p>\n\n\n\n

\u0110i\u1ec7n \u00e1p \u0111\u1ee9t \u0111i\u1ec7n m\u00f4i<\/strong> C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quy \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a, th\u01b0\u1eddng dao \u0111\u1ed9ng trong kho\u1ea3ng 2\u20134 kV \u0111\u1ed1i v\u1edbi c\u00e1c v\u1eadt li\u1ec7u ti\u00eau chu\u1ea9n. Th\u00f4ng th\u01b0\u1eddng, c\u00e1c k\u1ef9 s\u01b0 s\u1ebd l\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n c\u00f3 \u0111i\u1ec7n \u00e1p cao h\u01a1n cho c\u00e1c m\u1ea1ch k\u1ebft n\u1ed1i v\u1edbi ngu\u1ed3n \u0111i\u1ec7n l\u01b0\u1edbi, ch\u1ea5p nh\u1eadn s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i v\u1ec1 nhi\u1ec7t \u0111\u1ed9 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e2u d\u00e0i.<\/p>\n\n\n\n

Nh\u1eefng suy ngh\u0129 cu\u1ed1i c\u00f9ng v\u1ec1 thi\u1ebft k\u1ebf PCB nh\u00f4m<\/h2>\n\n\n\n

Th\u00e0nh c\u00f4ng b\u1ea3ng m\u1ea1ch in l\u00f5i kim lo\u1ea1i<\/strong> Vi\u1ec7c tri\u1ec3n khai ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i c\u01a1 b\u1ea3n gi\u1eefa hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t, c\u00e1ch ly \u0111i\u1ec7n v\u00e0 c\u00e1c h\u1ea1n ch\u1ebf trong s\u1ea3n xu\u1ea5t. C\u00e1c thi\u1ebft k\u1ebf hi\u1ec7u qu\u1ea3 nh\u1ea5t kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n t\u1ed1i \u0111a h\u00f3a \u0111\u1ed9 d\u1eabn nhi\u1ec7t\u2014m\u00e0 c\u00f2n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a ch\u1ea5t n\u1ec1n cho ph\u00f9 h\u1ee3p v\u1edbi m\u00f4 h\u00ecnh t\u1ea3n nhi\u1ec7t th\u1ef1c t\u1ebf, \u0111\u1ed3ng th\u1eddi duy tr\u00ec chi ph\u00ed s\u1ea3n xu\u1ea5t \u1edf m\u1ee9c h\u1ee3p l\u00fd.<\/p>\n\n\n\n

Nh\u1eefng l\u1ee3i \u00edch v\u1ec1 m\u1eb7t nhi\u1ec7t ch\u1ec9 c\u00f3 \u00fd ngh\u0129a n\u1ebfu thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n \u0111\u00e3 t\u00ednh \u0111\u1ebfn c\u00e1c h\u1ea1n ch\u1ebf \u0111\u00f3.<\/strong> C\u00e1c thi\u1ebft k\u1ebf b\u1ecf qua c\u00e1c y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch \u0111i\u1ec7n ho\u1eb7c gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng l\u1ed7 vias l\u00e0 kh\u00f4ng gi\u1edbi h\u1ea1n th\u01b0\u1eddng s\u1ebd b\u1ecb l\u1ed7i trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m nhi\u1ec7t. Vi\u1ec7c l\u1ef1a ch\u1ecdn ch\u1ea5t n\u1ec1n n\u00ean d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 ph\u00e2n t\u00edch nhi\u1ec7t, ch\u1ee9 kh\u00f4ng ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n\n\n\n

H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c gi\u1ea3 \u0111\u1ecbnh th\u1eadn tr\u1ecdng: m\u00f4 ph\u1ecfng m\u1ee9c ti\u00eau t\u00e1n c\u00f4ng su\u1ea5t trong tr\u01b0\u1eddng h\u1ee3p x\u1ea5u nh\u1ea5t, x\u00e1c minh xem bi\u00ean \u0111\u1ed9 an to\u00e0n ch\u1ed1ng ph\u00e1 v\u1ee1 \u0111i\u1ec7n m\u00f4i c\u00f3 v\u01b0\u1ee3t qu\u00e1 2 l\u1ea7n \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng hay kh\u00f4ng, v\u00e0 ch\u1ebf t\u1ea1o m\u1eabu th\u1eed nghi\u1ec7m b\u1eb1ng c\u00e1c ch\u1ea5t n\u1ec1n ti\u00eau chu\u1ea9n c\u00f3 h\u1ec7 s\u1ed1 d\u1eabn nhi\u1ec7t 2 W\/m\u00b7K tr\u01b0\u1edbc khi l\u1ef1a ch\u1ecdn c\u00e1c v\u1eadt li\u1ec7u \u0111\u1eb7c bi\u1ec7t. K\u1ebft qu\u1ea3 ki\u1ec3m tra cho th\u1ea5y<\/a> r\u1eb1ng 70% c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t \u0111\u1ebfn t\u1eeb vi\u1ec7c b\u1ed1 tr\u00ed linh ki\u1ec7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a ch\u1ee9 kh\u00f4ng ph\u1ea3i t\u1eeb vi\u1ec7c n\u00e2ng c\u1ea5p ch\u1ea5t n\u1ec1n.<\/p>\n\n\n\n

B\u01b0\u1edbc ti\u1ebfp theo c\u1ee7a b\u1ea1n:<\/strong> H\u00e3y t\u00ednh to\u00e1n m\u1eadt \u0111\u1ed9 c\u00f4ng su\u1ea5t th\u1ef1c t\u1ebf tr\u00ean m\u1ed7i centimet vu\u00f4ng. N\u1ebfu con s\u1ed1 n\u00e0y v\u01b0\u1ee3t qu\u00e1 5W\/cm\u00b2, b\u1ea1n n\u00ean c\u00e2n nh\u1eafc nghi\u00eam t\u00fac vi\u1ec7c s\u1eed d\u1ee5ng ch\u1ea5t n\u1ec1n nh\u00f4m. D\u01b0\u1edbi ng\u01b0\u1ee1ng \u0111\u00f3, c\u00e1c c\u1ea5u tr\u00fac FR-4 c\u1ea3i ti\u1ebfn th\u01b0\u1eddng mang l\u1ea1i hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao h\u01a1n m\u00e0 kh\u00f4ng g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p v\u1ec1 n\u1ed1i \u0111\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"

Aluminum PCB Design Guide: Optimizing Heat Dissipation for Power Electronics. Power electronics generate significant heat\u2014and when that heat isn’t properly 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