{"id":4606,"date":"2026-01-13T09:12:02","date_gmt":"2026-01-13T09:12:02","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4606"},"modified":"2026-01-13T09:12:04","modified_gmt":"2026-01-13T09:12:04","slug":"pcb-design-dft-dfm-dfa-key-design-considerations","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/vi\/pcb-design-dft-dfm-dfa-key-design-considerations\/","title":{"rendered":"Thi\u1ebft k\u1ebf PCB: DFT, DFM, DFA \u2014 C\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf quan tr\u1ecdng"},"content":{"rendered":"<h2 class=\"wp-block-heading\">T\u1ed5ng quan<\/h2>\n\n\n\n<p>Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b\u1ecb. M\u00f4 ph\u1ecfng v\u00e0 ki\u1ec3m th\u1eed l\u00e0 hai c\u00f4ng c\u1ee5 gi\u00fap nh\u00e0 thi\u1ebft k\u1ebf \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m ho\u1ea1t \u0111\u1ed9ng t\u1ed1t. Thi\u1ebft k\u1ebf t\u1ed1t ph\u1ea3i d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c nhu c\u1ea7u c\u1ee7a to\u00e0n b\u1ed9 bo m\u1ea1ch in (PCB) v\u00e0 cung c\u1ea5p nh\u1eefng g\u00ec c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nh\u1eefng nhu c\u1ea7u \u0111\u00f3. C\u00e1c th\u1ef1c h\u00e0nh thi\u1ebft k\u1ebf DFT, DFM v\u00e0 DFA v\u1eefng ch\u1eafc l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 t\u1ea1o ra m\u1ed9t bo m\u1ea1ch c\u00f3 th\u1ec3 s\u1ea3n xu\u1ea5t v\u00e0 s\u1eed d\u1ee5ng m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<p>Nh\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i th\u00eam c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra v\u00e0 c\u00e1c t\u00ednh n\u0103ng ki\u1ec3m tra kh\u00e1c v\u00e0o b\u1ea3ng m\u1ea1ch in (PCB) \u0111\u1ec3 k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c ki\u1ec3m tra trong giai \u0111o\u1ea1n th\u1eed nghi\u1ec7m. M\u1ed9t thi\u1ebft k\u1ebf t\u1ed1t c\u0169ng ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc gi\u00fap vi\u1ec7c s\u1ea3n xu\u1ea5t v\u00e0 l\u1eafp r\u00e1p b\u1ea3ng m\u1ea1ch tr\u1edf n\u00ean d\u1ec5 d\u00e0ng. Vi\u1ec7c d\u00e0nh th\u1eddi gian cho s\u01a1 \u0111\u1ed3 m\u1ea1ch v\u00e0 m\u00f4 ph\u1ecfng t\u1eeb s\u1edbm c\u00f3 th\u1ec3 gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian ph\u00e1t tri\u1ec3n v\u00e0 l\u00e0m cho s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng tr\u1edf n\u00ean \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf cho ki\u1ec3m th\u1eed (DFT)<\/h2>\n\n\n\n<p>Ki\u1ec3m tra v\u00e0 ki\u1ec3m \u0111\u1ecbnh l\u00e0 c\u00e1c b\u01b0\u1edbc quan tr\u1ecdng trong chu tr\u00ecnh s\u1ea3n xu\u1ea5t PCB. DFT (Design for Test) c\u00f3 ngh\u0129a l\u00e0 th\u00eam c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra v\u00e0o PCB \u0111\u1ec3 d\u1ec5 d\u00e0ng ki\u1ec3m tra ch\u1ee9c n\u0103ng c\u1ee7a m\u1ea1ch. C\u00e1c \u0111i\u1ec3m ki\u1ec3m tra b\u1ed5 sung gi\u00fap k\u1ef9 s\u01b0 ki\u1ec3m tra bo m\u1ea1ch sau khi n\u00f3 \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p. M\u1ee5c ti\u00eau l\u00e0 ph\u00e1t hi\u1ec7n v\u00e0 x\u00e1c nh\u1eadn b\u1ea5t k\u1ef3 l\u1ed7i s\u1ea3n xu\u1ea5t n\u00e0o c\u00f3 th\u1ec3 khi\u1ebfn s\u1ea3n ph\u1ea9m kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c \u00fd t\u01b0\u1edfng ch\u00ednh c\u1ee7a DFT<\/h3>\n\n\n\n<p>Hai kh\u00e1i ni\u1ec7m ch\u00ednh trong DFT l\u00e0 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 kh\u1ea3 n\u0103ng quan s\u00e1t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n<\/strong>Kh\u1ea3 n\u0103ng \u0111\u1eb7t c\u00e1c n\u00fat m\u1ea1ch ho\u1eb7c \u0111\u1ea7u v\u00e0o nh\u1ea5t \u0111\u1ecbnh v\u00e0o tr\u1ea1ng th\u00e1i ho\u1eb7c gi\u00e1 tr\u1ecb logic \u0111\u00e3 bi\u1ebft.<\/li>\n\n\n\n<li><strong>Kh\u1ea3 n\u0103ng quan s\u00e1t<\/strong>Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i ho\u1eb7c gi\u00e1 tr\u1ecb logic c\u1ee7a c\u00e1c n\u00fat b\u00ean trong ho\u1eb7c \u0111\u1ea7u ra.<\/li>\n<\/ul>\n\n\n\n<p>Hai \u00fd t\u01b0\u1edfng n\u00e0y cho ph\u00e9p c\u00e1c k\u1ef9 s\u01b0 \u0111\u01b0a thi\u1ebft k\u1ebf v\u00e0o tr\u1ea1ng th\u00e1i kh\u1edfi \u0111\u1ea7u \u0111\u00e3 bi\u1ebft v\u00e0 sau \u0111\u00f3 ki\u1ec3m so\u00e1t v\u00e0 theo d\u00f5i c\u00e1c t\u00edn hi\u1ec7u b\u00ean trong. \u0110i\u1ec1u n\u00e0y gi\u00fap ki\u1ec3m tra xem thi\u1ebft b\u1ecb c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang nh\u01b0 mong \u0111\u1ee3i hay kh\u00f4ng. C\u00e1c b\u00e0i ki\u1ec3m tra sau \u0111\u00f3 c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i ch\u1ee9c n\u0103ng ho\u1eb7c khuy\u1ebft t\u1eadt s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c l\u1ed7i ch\u1ee9c n\u0103ng ph\u1ed5 bi\u1ebfn v\u00e0 ki\u1ec3m tra<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>l\u1ed7i ch\u1ee9c n\u0103ng<\/strong> Thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn k\u1ebft qu\u1ea3 \u0111\u1ea7u ra kh\u00f4ng ch\u00ednh x\u00e1c ho\u1eb7c k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng t\u1eeb h\u1ec7 th\u1ed1ng, do h\u00e0nh vi m\u1ea1ch k\u00e9m ho\u1eb7c c\u00e1c l\u1ed7i ch\u1ee9c n\u0103ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i g\u00e2y ra.<\/li>\n\n\n\n<li>L\u1ed7i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh m\u00e3 ngu\u1ed3n ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c thay \u0111\u1ed5i nh\u1ecf, nh\u01b0ng c\u00e1c l\u1ed7i nghi\u00eam tr\u1ecdng cho th\u1ea5y c\u1ea7n ph\u1ea3i th\u1ef1c hi\u1ec7n c\u00e1c thay \u0111\u1ed5i thi\u1ebft k\u1ebf.<\/li>\n\n\n\n<li>Qu\u00e1 tr\u00ecnh ch\u1ea9n \u0111o\u00e1n chi ti\u1ebft s\u1ef1 c\u1ed1 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>Ph\u00e2n t\u00edch ch\u1ebf \u0111\u1ed9 h\u1ecfng h\u00f3c (FMA)<\/strong>.<\/li>\n\n\n\n<li>Trong qu\u00e1 tr\u00ecnh ki\u1ec3m th\u1eed ch\u1ee9c n\u0103ng, c\u00e1c k\u1ef9 s\u01b0 c\u0169ng ki\u1ec3m tra d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn, \u0111i\u1ec7n \u00e1p ch\u00e2n, m\u1ee9c c\u00f4ng su\u1ea5t, t\u00edn hi\u1ec7u chuy\u1ec3n m\u1ea1ch v\u00e0 th\u1eddi gian, c\u0169ng nh\u01b0 nhi\u1ec7t \u0111\u1ed9 bo m\u1ea1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c khuy\u1ebft t\u1eadt s\u1ea3n xu\u1ea5t ph\u1ed5 bi\u1ebfn<\/h3>\n\n\n\n<p>C\u00e1c l\u1ed7i s\u1ea3n xu\u1ea5t ph\u00e1t sinh t\u1eeb c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 d\u01b0 th\u1eeba kim lo\u1ea1i tr\u00ean b\u1ea3ng m\u1ea1ch, m\u1ea1 k\u00e9m, \u00f4 nhi\u1ec5m t\u1ea1i c\u00e1c m\u1ed1i h\u00e0n, v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111i\u1ec7n m\u00f4i. Nh\u1eefng l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ch\u1eadp m\u1ea1ch, h\u1edf m\u1ea1ch, m\u1ed1i h\u00e0n y\u1ebfu ho\u1eb7c h\u1ecfng c\u00e1ch \u0111i\u1ec7n. Vi\u1ec7c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro c\u1ee7a c\u00e1c l\u1ed7i n\u00e0y v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c ph\u00e1t hi\u1ec7n ch\u00fang n\u1ebfu x\u1ea3y ra l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hai c\u00e1ch \u0111\u1ec3 th\u00eam c\u00e1c t\u00ednh n\u0103ng DFT<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. K\u1ef9 thu\u1eadt t\u1ea1m th\u1eddi<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u00eam c\u00e1c t\u00ednh n\u0103ng th\u1eed nghi\u1ec7m m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i l\u1edbn trong thi\u1ebft k\u1ebf g\u1ed1c.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra t\u1ea1m th\u1eddi \u0111\u1ec3 ki\u1ec3m tra thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n th\u00eam nhi\u1ec1u \u0111i\u1ec3m ki\u1ec3m tra c\u1ed1 \u0111\u1ecbnh.<\/li>\n\n\n\n<li>\u01afu \u0111i\u1ec3m: Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, tri\u1ec3n khai nhanh ch\u00f3ng, ph\u00f9 h\u1ee3p cho c\u00e1c \u0111\u1ee3t s\u1ea3n xu\u1ea5t ban \u0111\u1ea7u v\u00e0 m\u1eabu th\u1eed nghi\u1ec7m.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. K\u1ef9 thu\u1eadt k\u1ebft c\u1ea5u<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed9t gi\u1ea3i ph\u00e1p l\u00e2u d\u00e0i t\u00edch h\u1ee3p c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra chuy\u00ean d\u1ee5ng v\u00e0o thi\u1ebft k\u1ebf bo m\u1ea1ch.<\/li>\n\n\n\n<li>\u01afu \u0111i\u1ec3m: Gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh g\u1ee1 l\u1ed7i; n\u1ebfu x\u1ea3y ra l\u1ed7i, c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra c\u1ed1 \u0111\u1ecbnh gi\u00fap d\u1ec5 d\u00e0ng x\u00e1c \u0111\u1ecbnh v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/li>\n\n\n\n<li>Ph\u00f9 h\u1ee3p nh\u1ea5t cho vi\u1ec7c ph\u00e1t hi\u1ec7n quy m\u00f4 l\u1edbn c\u00e1c l\u1ed7i s\u1ea3n xu\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">ICT \u2014 Ki\u1ec3m tra trong m\u1ea1ch<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ki\u1ec3m tra trong m\u1ea1ch (ICT)<\/strong> Th\u01b0\u1eddng s\u1eed d\u1ee5ng gi\u00e1 \u0111\u1ee1 d\u1ea1ng gi\u01b0\u1eddng \u0111inh.<\/li>\n\n\n\n<li>Ch\u1ee9c n\u0103ng: \u0110o \u0111i\u1ec7n tr\u1edf, \u0111i\u1ec7n dung v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb c\u1ee7a c\u00e1c linh ki\u1ec7n th\u1ee5 \u0111\u1ed9ng kh\u00e1c; ki\u1ec3m tra ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c linh ki\u1ec7n analog (v\u00ed d\u1ee5: b\u1ed9 khu\u1ebfch \u0111\u1ea1i, dao \u0111\u1ed9ng t\u1eed); ph\u00e1t hi\u1ec7n c\u00e1c s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn nh\u01b0 ch\u1eadp m\u1ea1ch, h\u1edf m\u1ea1ch ho\u1eb7c linh ki\u1ec7n kh\u00f4ng \u0111\u00fang.<\/li>\n\n\n\n<li>C\u1ea5u h\u00ecnh ti\u00eau chu\u1ea9n: Bao g\u1ed3m m\u1ed9t thi\u1ebft b\u1ecb ki\u1ec3m tra, m\u1ed9t gi\u00e1 \u0111\u1ee1 v\u00e0 ph\u1ea7n m\u1ec1m ki\u1ec3m tra.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/ict.webp\" alt=\"\" class=\"wp-image-4608\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/ict.webp 500w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/ict-300x300.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/ict-150x150.webp 150w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/01\/ict-12x12.webp 12w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1eed nghi\u1ec7m b\u1eb1ng \u0111\u1ea7u d\u00f2 bay<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u1ed9t h\u00ecnh th\u1ee9c c\u00f4ng ngh\u1ec7 th\u00f4ng tin v\u00e0 truy\u1ec1n th\u00f4ng (ICT) \u0111\u01a1n gi\u1ea3n v\u00e0 hi\u1ec7u qu\u1ea3.<\/li>\n\n\n\n<li>T\u00ednh n\u0103ng ch\u00ednh: C\u00e1c \u0111\u1ea7u d\u00f2 c\u00f3 th\u1ec3 di chuy\u1ec3n t\u1ef1 do tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB) \u0111\u1ec3 ti\u1ebfp x\u00fac v\u1edbi c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra c\u1ea7n thi\u1ebft; kh\u00f4ng c\u1ea7n thi\u1ebft b\u1ecb c\u1ed1 \u0111\u1ecbnh, gi\u00fap ti\u1ebft ki\u1ec7m chi ph\u00ed cho s\u1ea3n xu\u1ea5t s\u1ed1 l\u01b0\u1ee3ng nh\u1ecf ho\u1eb7c m\u1eabu th\u1eed.<\/li>\n\n\n\n<li>\u01afu \u0111i\u1ec3m: \u0110\u1ed1i v\u1edbi c\u00e1c thay \u0111\u1ed5i thi\u1ebft k\u1ebf, c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra kh\u00f4ng y\u00eau c\u1ea7u s\u1eeda \u0111\u1ed5i ph\u1ea7n c\u1ee9ng \u2014 ch\u1ec9 c\u1ea7n c\u1eadp nh\u1eadt ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m tra l\u00e0 \u0111\u1ee7.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf cho kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t (DFM)<\/h2>\n\n\n\n<p>S\u1ef1 s\u1eb5n c\u00f3 c\u1ee7a c\u00e1c linh ki\u1ec7n v\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo c\u00f4ng ty v\u00e0 qu\u1ed1c gia. T\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC) l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c kh\u00e1c \u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a ra th\u1ecb tr\u01b0\u1eddng. C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c quy tr\u00ecnh s\u1ea3n xu\u1ea5t hi\u1ec7n c\u00f3, c\u00e1c linh ki\u1ec7n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng c\u00e1c ch\u1ee9c n\u0103ng y\u00eau c\u1ea7u, v\u00e0 b\u1ed1 c\u1ee5c cu\u1ed1i c\u00f9ng \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng \u0111\u00e3 quy \u0111\u1ecbnh. <strong>DFM (Thi\u1ebft k\u1ebf cho kh\u1ea3 n\u0103ng s\u1ea3n xu\u1ea5t)<\/strong> Li\u00ean quan \u0111\u1ebfn vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch v\u00e0 thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t d\u1ec5 d\u00e0ng v\u00e0 chi ph\u00ed th\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1ee5c ti\u00eau DFM<\/h3>\n\n\n\n<p>DFM gi\u00fap \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t PCB, gi\u1ea3m th\u1eddi gian v\u00e0 chi ph\u00ed s\u1ea3n xu\u1ea5t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c ki\u1ec3m tra quan tr\u1ecdng v\u00e0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t cho DFM:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">1. L\u1ef1a ch\u1ecdn th\u00e0nh ph\u1ea7n<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c th\u00e0nh ph\u1ea7n ti\u00eau chu\u1ea9n \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed h\u01a1n so v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n t\u00f9y ch\u1ec9nh, g\u00f3p ph\u1ea7n t\u0103ng gi\u00e1 tr\u1ecb cho s\u1ea3n ph\u1ea9m.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n ti\u00eau chu\u1ea9n gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a logistics: vi\u1ec7c thay th\u1ebf tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfng h\u00f3c so v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n t\u00f9y ch\u1ec9nh.<\/li>\n\n\n\n<li>C\u00e1c th\u00e0nh ph\u1ea7n ti\u00eau chu\u1ea9n th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 dung sai r\u00f5 r\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng h\u00e0n t\u1ed1t.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. H\u00ecnh th\u1ee9c v\u00e0 b\u1ed1 c\u1ee5c b\u1ea3ng<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 h\u00ecnh d\u1ea1ng v\u00e0 k\u00edch th\u01b0\u1edbc do kh\u00e1ch h\u00e0ng quy \u0111\u1ecbnh.<\/li>\n\n\n\n<li>Xem x\u00e9t v\u1ecb tr\u00ed \u0111\u1eb7t connector v\u00e0 nh\u00f3m c\u00e1c m\u1ea1ch theo c\u00f4ng su\u1ea5t, t\u1ea7n s\u1ed1 v\u00e0 y\u00eau c\u1ea7u \u0111\u01b0\u1eddng d\u1eabn.<\/li>\n\n\n\n<li>\u0110\u1eb7t c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 li\u00ean quan v\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng g\u1ea7n nhau \u0111\u1ec3 gi\u1ea3m thi\u1ec3u chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng d\u1eabn v\u00e0 nhi\u1ec5u.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. Gi\u1ea3m thi\u1ec3u s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n gi\u00fap gi\u1ea3m chi ph\u00ed v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh s\u1ea3n xu\u1ea5t, c\u00f3 th\u1ec3 gi\u1ea3m s\u1ed1 l\u1edbp c\u1ee7a b\u1ea3ng m\u1ea1ch in (PCB).<\/li>\n\n\n\n<li>X\u00e1c \u0111\u1ecbnh s\u1ed1 l\u1edbp d\u1ef1a tr\u00ean di\u1ec7n t\u00edch b\u1ea3ng m\u1ea1ch, \u0111\u01b0\u1eddng d\u1eabn ngu\u1ed3n, t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u, y\u00eau c\u1ea7u c\u00e1ch ly v\u00e0 s\u1ed1 l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4. T\u00e1i s\u1eed d\u1ee5ng c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thi\u1ebft k\u1ebf c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 t\u00e1i s\u1eed d\u1ee5ng \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed (v\u00ed d\u1ee5: m\u1ed9t l\u1edbp n\u1ec1n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 l\u1edbp k\u1ebft c\u1ea5u, l\u1edbp ch\u1eafn EMI v\u00e0 b\u1ed9 t\u0103ng c\u01b0\u1eddng t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u).<\/li>\n\n\n\n<li>Tu\u00e2n th\u1ee7 c\u00e1c quy t\u1eafc DFM: chi\u1ec1u r\u1ed9ng \u0111\u01b0\u1eddng d\u1eabn t\u1ed1i thi\u1ec3u, kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn v\u00e0 k\u00edch th\u01b0\u1edbc v\u00f2ng tr\u00f2n xung quanh l\u1ed7 via ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">5. Tu\u00e2n th\u1ee7 v\u00e0 T\u01b0\u01a1ng th\u00edch \u0111i\u1ec7n t\u1eeb (EMC)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1eadp k\u1ebf ho\u1ea1ch tu\u00e2n th\u1ee7 EMC v\u00e0 s\u1eed d\u1ee5ng \u0111i\u1ec7n n\u0103ng t\u1eeb giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ban \u0111\u1ea7u \u0111\u1ec3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m v\u00e0 gi\u1ea3m thi\u1ec3u chi ph\u00ed s\u1eeda ch\u1eefa.<\/li>\n\n\n\n<li>Cho ph\u00e9p dung sai \u0111\u1ed1i v\u1edbi nh\u1eefng thay \u0111\u1ed5i nh\u1ecf v\u1ec1 k\u00edch th\u01b0\u1edbc b\u1ea3ng m\u1ea1ch ho\u1eb7c v\u1ecb tr\u00ed linh ki\u1ec7n sau qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 tr\u00e1nh l\u1ed7i l\u1eafp r\u00e1p ho\u1eb7c l\u1ed7i ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">6. X\u1eed l\u00fd v\u00e0 \u0111\u00f3ng g\u00f3i<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tr\u00e1nh s\u1eed d\u1ee5ng thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u1ed1i x\u1ee9ng, v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd (d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1).<\/li>\n\n\n\n<li>H\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn d\u1ec5 v\u1ee1 ho\u1eb7c qu\u00e1 linh ho\u1ea1t.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng bao b\u00ec an to\u00e0n, g\u1ecdn nh\u1eb9 \u0111\u1ec3 b\u1ea3o v\u1ec7 bo m\u1ea1ch trong qu\u00e1 tr\u00ecnh v\u1eadn chuy\u1ec3n v\u00e0 s\u1eed d\u1ee5ng.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf cho l\u1eafp r\u00e1p (DFA)<\/h2>\n\n\n\n<p>Ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 thu\u1eadn ti\u1ec7n trong vi\u1ec7c l\u1eafp r\u00e1p linh ki\u1ec7n. C\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng linh ki\u1ec7n \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 to\u00e0n c\u1ea7u, sau \u0111\u00f3 l\u1eafp r\u00e1p theo y\u00eau c\u1ea7u. S\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n \u00edt h\u01a1n gi\u00fap gi\u1ea3m th\u1eddi gian l\u1eafp r\u00e1p; c\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp r\u00e1p gi\u00fap t\u1ed1i \u01b0u h\u00f3a to\u00e0n b\u1ed9 quy tr\u00ecnh. <strong>DFA (Thi\u1ebft k\u1ebf cho l\u1eafp r\u00e1p)<\/strong> l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p thi\u1ebft k\u1ebf \u01b0u ti\u00ean t\u00ednh d\u1ec5 l\u1eafp r\u00e1p, mang l\u1ea1i ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t c\u1ee7a DFA<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">1. Gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng lo\u1ea1i linh ki\u1ec7n<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t linh ki\u1ec7n t\u1ea1i nhi\u1ec1u v\u1ecb tr\u00ed kh\u00e1c nhau \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng h\u00e0ng t\u1ed3n kho, \u0111\u01a1n gi\u1ea3n h\u00f3a quy tr\u00ecnh l\u1ea5y v\u00e0 \u0111\u1eb7t linh ki\u1ec7n, v\u00e0 gi\u1ea3m thi\u1ec3u sai s\u00f3t.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">2. L\u00e0m cho c\u00e1c b\u1ed9 ph\u1eadn d\u1ec5 d\u00e0ng \u0111\u1eb7t v\u00e0o v\u1ecb tr\u00ed.<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ecdn c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 d\u1ea5u hi\u1ec7u ph\u00e2n c\u1ef1c r\u00f5 r\u00e0ng \u0111\u1ec3 d\u1ec5 d\u00e0ng \u0111\u1ecbnh h\u01b0\u1edbng.<\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf c\u00e1c d\u1ea5u ch\u00e2n linh ki\u1ec7n sao cho ph\u00f9 h\u1ee3p v\u1edbi k\u00edch th\u01b0\u1edbc th\u1ef1c t\u1ebf c\u1ee7a linh ki\u1ec7n v\u00e0 \u0111\u1ea3m b\u1ea3o di\u1ec7n t\u00edch pad \u0111\u1ee7 l\u1edbn \u0111\u1ec3 h\u00e0n ch\u1eafc ch\u1eafn.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3. Ph\u00e2n lo\u1ea1i c\u00e1c b\u1ed9 ph\u1eadn theo nh\u00f3m m\u1ed9t c\u00e1ch logic<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00e1c th\u00e0nh ph\u1ea7n c\u1ee5m c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh.<\/li>\n\n\n\n<li>Ph\u00e2n lo\u1ea1i c\u00e1c b\u1ed9 ph\u1eadn theo ch\u1ee9c n\u0103ng \u0111\u1ec3 thu\u1eadn ti\u1ec7n cho vi\u1ec7c l\u1eafp r\u00e1p v\u00e0 ki\u1ec3m tra m\u1ed9t c\u00e1ch c\u00f3 tr\u1eadt t\u1ef1.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">4. Thi\u1ebft k\u1ebf cho l\u1eafp r\u00e1p t\u1ef1 \u0111\u1ed9ng<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a b\u1ed1 c\u1ee5c v\u1edbi c\u00e1c m\u00e1y \u0111\u1eb7t linh ki\u1ec7n t\u1ef1 \u0111\u1ed9ng v\u00e0 l\u00f2 h\u00e0n ch\u1ea3y cho c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t t\u1ef1 \u0111\u1ed9ng.<\/li>\n\n\n\n<li>Gi\u1eef b\u1ea3ng m\u1ea1ch ph\u1eb3ng v\u00e0 tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c linh ki\u1ec7n cao c\u00f3 th\u1ec3 c\u1ea3n tr\u1edf vi\u1ec7c l\u1eafp r\u00e1p c\u00e1c b\u1ed9 ph\u1eadn li\u1ec1n k\u1ec1.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">5. Cho ph\u00e9p l\u00e0m vi\u1ec7c th\u1ee7 c\u00f4ng<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>D\u00e0nh kh\u00f4ng gian cho c\u00f4ng nh\u00e2n ti\u1ebfp c\u1eadn c\u00e1c t\u1ea5m \u0111\u1ec7m v\u00e0 \u0111\u1ea7u n\u1ed1i trong c\u00e1c b\u01b0\u1edbc l\u1eafp r\u00e1p th\u1ee7 c\u00f4ng.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m tham chi\u1ebfu v\u00e0 d\u1ea5u hi\u1ec7u r\u00f5 r\u00e0ng \u0111\u1ec3 c\u0103n ch\u1ec9nh b\u1eb1ng thi\u1ebft b\u1ecb v\u00e0 nh\u00e2n vi\u00ean.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">6. S\u1eed d\u1ee5ng thi\u1ebft k\u1ebf c\u01a1 kh\u00ed t\u1ed1t<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Thi\u1ebft k\u1ebf h\u00ecnh d\u1ea1ng b\u1ea3ng m\u1ea1ch v\u00e0 l\u1ed7 g\u1eafn \u0111\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t trong v\u1ecf m\u00e1y.<\/li>\n\n\n\n<li>Cung c\u1ea5p c\u00e1c \u0111i\u1ec3m g\u1eafn k\u1ebft r\u00f5 r\u00e0ng v\u00e0 tr\u00e1nh c\u00e1c thi\u1ebft k\u1ebf g\u00e2y c\u0103ng th\u1eb3ng cho b\u1ea3ng m\u1ea1ch trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Ki\u1ec3m tra th\u1ef1c t\u1ebf v\u00e0 v\u00ed d\u1ee5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u0110\u1ed9 r\u1ed9ng v\u00e0 kho\u1ea3ng c\u00e1ch c\u1ee7a \u0111\u01b0\u1eddng v\u1ea1ch<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u00e3y l\u00e0m theo <a href=\"https:\/\/flj-pcb.com\/vi\/\" data-type=\"page\" data-id=\"6\">Nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ea3ng m\u1ea1ch in (PCB)<\/a> Y\u00eau c\u1ea7u t\u1ed1i thi\u1ec3u v\u1ec1 chi\u1ec1u r\u1ed9ng v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn.<\/li>\n\n\n\n<li>D\u1ea3i m\u1ea1ch r\u1ed9ng h\u01a1n c\u00f3 th\u1ec3 d\u1eabn d\u00f2ng \u0111i\u1ec7n l\u1edbn h\u01a1n v\u00e0 d\u1ec5 s\u1ea3n xu\u1ea5t h\u01a1n; kho\u1ea3ng c\u00e1ch \u0111\u1ee7 gi\u1eefa c\u00e1c d\u1ea3i m\u1ea1ch gi\u00fap gi\u1ea3m nguy c\u01a1 ch\u1eadp m\u1ea1ch.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Qua Thi\u1ebft K\u1ebf<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ch\u1ecdn k\u00edch th\u01b0\u1edbc l\u1ed7 vias v\u00e0 v\u00f2ng tr\u00f2n annular ph\u00f9 h\u1ee3p. L\u1ed7 vias nh\u1ecf gi\u00fap ti\u1ebft ki\u1ec7m kh\u00f4ng gian nh\u01b0ng kh\u00f3 m\u1ea1 h\u01a1n v\u00e0 c\u00f3 th\u1ec3 k\u00e9m tin c\u1eady h\u01a1n \u2014 c\u00e2n b\u1eb1ng gi\u1eefa k\u00edch th\u01b0\u1edbc v\u00e0 hi\u1ec7u su\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. L\u1edbp ph\u1ee7 h\u00e0n v\u00e0 in l\u01b0\u1edbi<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 h\u00e0n \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c s\u1ef1 c\u1ed1 ch\u1eadp m\u1ea1ch v\u00e0 thu\u1eadn ti\u1ec7n cho qu\u00e1 tr\u00ecnh h\u00e0n.<\/li>\n\n\n\n<li>Gi\u1eef khu\u00f4n in l\u1ee5a s\u1ea1ch s\u1ebd v\u00e0 c\u00e1ch xa c\u00e1c mi\u1ebfng \u0111\u1ec7m \u0111\u1ec3 tr\u00e1nh in l\u00ean c\u00e1c v\u00f9ng c\u00f3 th\u1ec3 h\u00e0n.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. K\u1ebf ho\u1ea1ch nhi\u1ec7t v\u00e0 \u0111i\u1ec7n<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1ea3m b\u1ea3o di\u1ec7n t\u00edch \u0111\u1ed3ng \u0111\u1ee7 l\u1edbn cho c\u00e1c linh ki\u1ec7n ngu\u1ed3n \u0111\u1ec3 t\u1ea3n nhi\u1ec7t.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c b\u1ed9 t\u1ea3n nhi\u1ec7t tr\u00ean c\u00e1c t\u1ea5m \u0111\u1ec7m khi c\u1ea7n thi\u1ebft; \u0111\u1eb7t c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed sao cho tr\u00e1nh t\u00edch t\u1ee5 nhi\u1ec7t g\u1ea7n c\u00e1c b\u1ed9 ph\u1eadn nh\u1ea1y c\u1ea3m.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. EMI v\u00e0 Ti\u1ebfp \u0111\u1ea5t<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng c\u00e1c m\u1eb7t ph\u1eb3ng \u0111\u1ea5t ch\u1eafc ch\u1eafn v\u00e0 \u0111\u01b0\u1eddng d\u1eabn tr\u1edf v\u1ec1 ng\u1eafn.<\/li>\n\n\n\n<li>Gi\u1eef cho c\u00e1c \u0111\u01b0\u1eddng d\u1eabn t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao ng\u1eafn v\u00e0 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tr\u1edf kh\u00e1ng.<\/li>\n\n\n\n<li>\u0110\u1eb7t t\u1ee5 \u0111i\u1ec7n bypass g\u1ea7n c\u00e1c ch\u00e2n ngu\u1ed3n v\u00e0 b\u1ed1 tr\u00ed c\u00e1c \u0111\u01b0\u1eddng ngu\u1ed3n c\u1ea9n th\u1eadn.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u0110i\u1ec3m ki\u1ec3m tra l\u1eafp r\u00e1p<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0110\u1eb7t c\u00e1c mi\u1ebfng \u0111\u1ec7m th\u1eed nghi\u1ec7m sao cho d\u1ec5 d\u00e0ng ti\u1ebfp c\u1eadn \u0111\u1ea7u d\u00f2, kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf b\u1edfi c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng mi\u1ebfng th\u1eed ti\u00eau chu\u1ea9n \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh ki\u1ec3m tra.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">7. \u0110\u00f3ng g\u00f3i v\u00e0 V\u1eadn chuy\u1ec3n<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>S\u1eed d\u1ee5ng l\u1edbp \u0111\u1ec7m ch\u1ed1ng t\u0129nh \u0111i\u1ec7n \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ea3ng m\u1ea1ch.<\/li>\n\n\n\n<li>\u0110\u00f3ng g\u00f3i c\u00e1c b\u1ea3ng m\u1ea1ch \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c u\u1ed1n cong ho\u1eb7c ti\u1ebfp x\u00fac gi\u1eefa c\u00e1c \u0111\u01a1n v\u1ecb; b\u1ea3o v\u1ec7 c\u00e1c k\u1ebft n\u1ed1i l\u1ed9 ra v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n d\u1ec5 v\u1ee1.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p>Trong chu tr\u00ecnh s\u1ea3n xu\u1ea5t PCB, kho\u1ea3ng 70% chi ph\u00ed s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong giai \u0111o\u1ea1n thi\u1ebft k\u1ebf ban \u0111\u1ea7u. \u00c1p d\u1ee5ng DFM t\u1eeb \u0111\u1ea7u gi\u00fap gi\u1ea3m chi ph\u00ed v\u00e0 \u0111\u1ea9y nhanh th\u1eddi gian \u0111\u01b0a s\u1ea3n ph\u1ea9m ra th\u1ecb tr\u01b0\u1eddng. DFT \u0111\u1ea3m b\u1ea3o ch\u1ee9c n\u0103ng sau s\u1ea3n xu\u1ea5t, trong khi DFA gi\u1ea3m th\u1eddi gian v\u00e0 chi ph\u00ed l\u1eafp r\u00e1p. B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc t\u1ed1t nh\u1ea5t cho DFT, DFM v\u00e0 DFA, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c PCB \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n (\u0111\u1ec3 xem x\u00e9t nhanh)<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Th\u00eam c\u00e1c \u0111i\u1ec3m ki\u1ec3m tra cho c\u00e1c m\u1ea1ng ch\u00ednh.<\/li>\n\n\n\n<li>\u0110\u1ea3m b\u1ea3o l\u01b0\u1edbi c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n v\u00e0 quan s\u00e1t \u0111\u01b0\u1ee3c.<\/li>\n\n\n\n<li>\u01afu ti\u00ean s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n ti\u00eau chu\u1ea9n khi c\u00f3 th\u1ec3.<\/li>\n\n\n\n<li>Gi\u1ea3m thi\u1ec3u s\u1ed1 l\u01b0\u1ee3ng linh ki\u1ec7n v\u00e0 s\u1ed1 l\u01b0\u1ee3ng l\u1edbp.<\/li>\n\n\n\n<li>Tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 cung c\u1ea5p v\u1ec1 chi\u1ec1u r\u1ed9ng v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng c\u00e1c m\u1eb7t ph\u1eb3ng \u0111\u1ea5t v\u00e0 \u0111\u1eb7t t\u1ee5 \u0111i\u1ec7n bypass g\u1ea7n c\u00e1c ch\u00e2n ngu\u1ed3n.<\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf b\u1ea3n v\u1ebd k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p v\u1edbi k\u00edch th\u01b0\u1edbc th\u1ef1c t\u1ebf c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n.<\/li>\n\n\n\n<li>D\u00e0nh kh\u00f4ng gian cho c\u00e1c \u0111\u1ea7u d\u00f2 th\u1eed nghi\u1ec7m v\u00e0 c\u00f4ng c\u1ee5 \u0111\u1eb7t v\u00e0 l\u1ea5y.<\/li>\n\n\n\n<li>K\u1ebf ho\u1ea1ch x\u1eed l\u00fd, \u0111\u00f3ng g\u00f3i v\u00e0 l\u1eafp \u0111\u1eb7t.<\/li>\n\n\n\n<li>Th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i ki\u1ec3m tra ICT ho\u1eb7c ki\u1ec3m tra b\u1eb1ng \u0111\u1ea7u d\u00f2 di \u0111\u1ed9ng tr\u00ean c\u00e1c m\u1eabu th\u1eed.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Overview The consumer electronics industry depends a lot on device reliability. 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