{"id":4745,"date":"2026-03-03T08:22:24","date_gmt":"2026-03-03T08:22:24","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4745"},"modified":"2026-03-03T08:32:02","modified_gmt":"2026-03-03T08:32:02","slug":"pcb-size-control-prevention-solutions","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/vi\/pcb-size-control-prevention-solutions\/","title":{"rendered":"Ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc PCB: Ph\u00f2ng ng\u1eeba v\u00e0 gi\u1ea3i ph\u00e1p"},"content":{"rendered":"

Ghi ch\u00fa n\u00e0y gi\u1ea3i th\u00edch l\u00fd do t\u1ea1i sao c\u00e1c b\u1ea3ng m\u1ea1ch in (PCB) c\u00f3 th\u1ec3 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh gia c\u00f4ng v\u00e0 c\u00e1ch ki\u1ec3m so\u00e1t \u0111i\u1ec1u n\u00e0y. T\u1eeb qu\u00e1 tr\u00ecnh chuy\u1ec3n m\u1eabu l\u1edbp trong \u0111\u1ea7u ti\u00ean tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB) V\u1eadt li\u1ec7u n\u1ec1n PCB<\/a>, Qua nhi\u1ec1u chu k\u1ef3 \u00e9p laminate v\u00e0 sau \u0111\u00f3 l\u00e0 qu\u00e1 tr\u00ecnh chuy\u1ec3n m\u1eabu l\u1edbp ngo\u00e0i, b\u1ea3ng m\u1ea1ch c\u00f3 th\u1ec3 gi\u00e3n n\u1edf ho\u1eb7c co l\u1ea1i kh\u00e1c nhau theo c\u00e1c h\u01b0\u1edbng X v\u00e0 Y. B\u1eb1ng c\u00e1ch xem x\u00e9t s\u01a1 \u0111\u1ed3 quy tr\u00ecnh s\u1ea3n xu\u1ea5t PCB ho\u00e0n ch\u1ec9nh, ch\u00fang ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c b\u01b0\u1edbc quy tr\u00ecnh v\u00e0 nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n n\u1edf b\u1ea5t th\u01b0\u1eddng c\u1ee7a b\u1ea3ng m\u1ea1ch ho\u1eb7c s\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t v\u1ec1 k\u00edch th\u01b0\u1edbc.<\/p>\n\n\n\n

1. Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co ng\u00f3t k\u00edch th\u01b0\u1edbc c\u1ee7a PCB<\/h2>\n\n\n\n

1.1 \u1ed4n \u0111\u1ecbnh nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4<\/h3>\n\n\n\n

Y\u1ebfu t\u1ed1 ch\u00ednh l\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u n\u1ec1n PCB \u0111\u1ea7u v\u00e0o. C\u1ea7n \u0111\u1eb7c bi\u1ec7t ch\u00fa \u00fd \u0111\u1ebfn \u0111\u1ed9 nh\u1ea5t qu\u00e1n c\u1ee7a v\u1eadt li\u1ec7u gi\u1eefa c\u00e1c chu k\u1ef3 \u00e9p laminate t\u1eeb c\u00f9ng m\u1ed9t nh\u00e0 cung c\u1ea5p. Ngay c\u1ea3 khi m\u1ed7i l\u00f4 v\u1eadt li\u1ec7u \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt, s\u1ef1 kh\u00f4ng nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4 c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1. V\u00ed d\u1ee5, m\u1ed9t b\u1ea3ng th\u1eed nghi\u1ec7m \u0111\u1ea7u ti\u00ean c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh v\u1edbi b\u00f9 \u0111\u1eafp l\u1edbp trong h\u1ee3p l\u00fd. Sau \u0111\u00f3, khi s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng m\u1ed9t l\u00f4 v\u1eadt li\u1ec7u n\u1ec1n kh\u00e1c, k\u00edch th\u01b0\u1edbc m\u1eabu cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n dung sai.<\/p>\n\n\n\n

C\u00f3 m\u1ed9t tr\u01b0\u1eddng h\u1ee3p b\u1ea5t th\u01b0\u1eddng kh\u00e1c. M\u1ed9t s\u1ed1 l\u00f4 s\u1ea3n ph\u1ea9m cho k\u1ebft qu\u1ea3 X-quang v\u00e0 t\u1ef7 l\u1ec7 chuy\u1ec3n l\u1edbp ngo\u00e0i b\u00ecnh th\u01b0\u1eddng sau khi lamination l\u1edbp ngo\u00e0i. Tuy nhi\u00ean, sau \u0111\u00f3, tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n qu\u00e1 tr\u00ecnh \u0111\u1ecbnh tuy\u1ebfn vi\u1ec1n, t\u1ea5m panel \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u0111\u00e3 b\u1ecb co l\u1ea1i. Trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1ea3n xu\u1ea5t, m\u1ed9t s\u1ed1 l\u00f4 s\u1ea3n ph\u1ea9m cho th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng co l\u1ea1i nghi\u00eam tr\u1ecdng sau qu\u00e1 tr\u00ecnh chuy\u1ec3n l\u1edbp ngo\u00e0i. \u0110\u1ed9 r\u1ed9ng c\u1ee7a t\u1ea5m panel so v\u1edbi chi\u1ec1u d\u00e0i \u0111\u01a1n v\u1ecb v\u1eadn chuy\u1ec3n, t\u01b0\u01a1ng \u1ee9ng v\u1edbi t\u1ef7 l\u1ec7 chuy\u1ec3n l\u1edbp ngo\u00e0i, \u0111\u00e3 co l\u1ea1i t\u1edbi 3,6 mil tr\u00ean m\u1ed7i 10 inch. Ch\u00fang t\u00f4i \u0111\u00e3 truy v\u1ebft l\u00f4 h\u00e0ng n\u00e0y. D\u1eef li\u1ec7u X-quang sau khi lamination l\u1edbp ngo\u00e0i v\u00e0 t\u1ef7 l\u1ec7 chuy\u1ec3n l\u1edbp ngo\u00e0i v\u1eabn n\u1eb1m trong gi\u1edbi h\u1ea1n ki\u1ec3m so\u00e1t. Hi\u1ec7n t\u1ea1i, h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t quy tr\u00ecnh kh\u00f4ng c\u00f3 ph\u01b0\u01a1ng ph\u00e1p gi\u00e1m s\u00e1t \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm lo\u1ea1i bi\u1ebfn \u0111\u1ed9ng n\u00e0y.<\/p>\n\n\n\n

1.2 C\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng panel (m\u1ea3ng)<\/h3>\n\n\n\n

C\u00e1c b\u1ea3ng m\u1ea1ch ti\u00eau chu\u1ea9n th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi b\u1ed1 c\u1ee5c \u0111\u1ed1i x\u1ee9ng. Khi t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i b\u00ecnh th\u01b0\u1eddng, b\u1ed1 c\u1ee5c \u0111\u1ed1i x\u1ee9ng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u \u0111\u1ebfn k\u00edch th\u01b0\u1edbc m\u1eabu cu\u1ed1i c\u00f9ng. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng ho\u1eb7c nh\u00e0 thi\u1ebft k\u1ebf s\u1eed d\u1ee5ng b\u1ed1 c\u1ee5c b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u1ed1i x\u1ee9ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 gi\u1ea3m chi ph\u00ed. B\u1ed1 c\u1ee5c kh\u00f4ng \u0111\u1ed1i x\u1ee9ng c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t v\u1ec1 k\u00edch th\u01b0\u1edbc m\u1eabu gi\u1eefa c\u00e1c khu v\u1ef1c kh\u00e1c nhau tr\u00ean b\u1ea3ng m\u1ea1ch. Trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1ec1 ki\u1ec3m so\u00e1t \u0111\u0103ng k\u00fd cho c\u00e1c b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u1ed1i x\u1ee9ng. \u0110i\u1ec1u n\u00e0y \u00e1p d\u1ee5ng cho c\u00e1c b\u01b0\u1edbc nh\u01b0 khoan l\u1ed7 m\u00f9 b\u1eb1ng laser, ph\u01a1i s\u00e1ng l\u1edbp ngo\u00e0i, ph\u01a1i s\u00e1ng l\u1edbp ph\u1ee7 h\u00e0n v\u00e0 in k\u00fd hi\u1ec7u. Trong c\u00e1c b\u01b0\u1edbc n\u00e0y, c\u00e1c b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u1ed1i x\u1ee9ng kh\u00f3 c\u0103n ch\u1ec9nh v\u00e0 c\u1ea3i thi\u1ec7n h\u01a1n so v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch \u0111\u1ed1i x\u1ee9ng.<\/p>\n\n\n\n

1.3 H\u1ec7 s\u1ed1 truy\u1ec1n t\u1ea3i m\u1eabu l\u1edbp trong \u0111\u1ea7u ti\u00ean<\/h3>\n\n\n\n

B\u01b0\u1edbc chuy\u1ec3n giao m\u1eabu l\u1edbp trong \u0111\u1ea7u ti\u00ean l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng quy\u1ebft \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc cu\u1ed1i c\u00f9ng c\u1ee7a PCB. N\u1ebfu vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 phim ho\u1eb7c b\u00f9 \u0111\u1eafp phim cho qu\u00e1 tr\u00ecnh chuy\u1ec3n giao l\u1edbp trong \u0111\u1ea7u ti\u00ean kh\u00f4ng ch\u00ednh x\u00e1c, k\u00edch th\u01b0\u1edbc m\u1eabu PCB ho\u00e0n thi\u1ec7n c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng. Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 l\u1edbp \u0111\u1ea7u ti\u00ean sai c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 sau n\u00e0y. V\u00ed d\u1ee5, c\u00e1c l\u1ed7 vi m\u1ea1ch m\u00f9 (blind vias) c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp v\u1edbi c\u00e1c pad ti\u1ebfp \u0111\u1ea5t c\u1ee7a ch\u00fang. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 c\u00e1ch \u0111i\u1ec7n gi\u1eefa c\u00e1c l\u1edbp v\u00e0 th\u1eadm ch\u00ed g\u00e2y ra ch\u1eadp \u0111i\u1ec7n. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u1ecbnh v\u1ecb cho c\u00e1c l\u1ed7 vi m\u1ea1ch xuy\u00ean qua (through vias) ho\u1eb7c l\u1ed7 vi m\u1ea1ch m\u00f9 (blind vias) trong qu\u00e1 tr\u00ecnh chuy\u1ec3n giao l\u1edbp ngo\u00e0i.<\/p>\n\n\n\n

2. Ph\u01b0\u01a1ng ph\u00e1p gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n c\u00f3 m\u1ee5c ti\u00eau<\/h2>\n\n\n\n

D\u1ef1a tr\u00ean ph\u00e2n t\u00edch tr\u00ean, ch\u00fang ta c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c ph\u01b0\u01a1ng ph\u00e1p gi\u00e1m s\u00e1t v\u00e0 c\u1ea3i thi\u1ec7n c\u1ee5 th\u1ec3.<\/p>\n\n\n\n

2.1 Gi\u00e1m s\u00e1t t\u00ednh \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a l\u00f4 s\u1ea3n ph\u1ea9m.<\/h3>\n\n\n\n
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  1. Ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3. Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u c\u01a1 b\u1ea3n t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c nhau. Theo d\u00f5i s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 chi\u1ec1u d\u1ecdc v\u00e0 chi\u1ec1u ngang (X v\u00e0 Y) gi\u1eefa c\u00e1c l\u00f4 v\u1eadt li\u1ec7u c\u00f9ng lo\u1ea1i. S\u1eed d\u1ee5ng th\u1ed1ng k\u00ea c\u01a1 b\u1ea3n \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u ki\u1ec3m tra. \u0110i\u1ec1u n\u00e0y gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c nh\u00e0 cung c\u1ea5p c\u00f3 v\u1eadt li\u1ec7u \u1ed5n \u0111\u1ecbnh h\u01a1n theo th\u1eddi gian.<\/li>\n\n\n\n
  2. S\u1eed d\u1ee5ng d\u1eef li\u1ec7u \u0111\u1ec3 l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p. Cung c\u1ea5p d\u1eef li\u1ec7u k\u00edch th\u01b0\u1edbc cho SQE (K\u1ef9 thu\u1eadt Ch\u1ea5t l\u01b0\u1ee3ng Nh\u00e0 cung c\u1ea5p) v\u00e0 b\u1ed9 ph\u1eadn mua h\u00e0ng. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p b\u1eb1ng ch\u1ee9ng t\u1ed1t h\u01a1n cho vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p.<\/li>\n\n\n\n
  3. Ph\u00e1t hi\u1ec7n c\u00e1c bi\u1ebfn \u0111\u1ed9ng nghi\u00eam tr\u1ecdng. \u0110\u1ed1i v\u1edbi c\u00e1c l\u00f4 h\u00e0ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng g\u00e2y ra s\u1ef1 suy gi\u1ea3m nghi\u00eam tr\u1ecdng sau khi chuy\u1ec3n l\u1edbp ngo\u00e0i, ph\u01b0\u01a1ng ph\u00e1p ph\u00e1t hi\u1ec7n duy nh\u1ea5t hi\u1ec7n nay l\u00e0 \u0111o l\u01b0\u1eddng c\u00e1c t\u1ea5m s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean t\u1ea1i giai \u0111o\u1ea1n \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c ki\u1ec3m tra t\u1ea1i giai \u0111o\u1ea1n xem x\u00e9t xu\u1ea5t h\u00e0ng. Ph\u01b0\u01a1ng ph\u00e1p sau y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t l\u00f4 h\u00e0ng nghi\u00eam ng\u1eb7t. Trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t v\u1edbi nhi\u1ec1u l\u00f4 h\u00e0ng, vi\u1ec7c nh\u1ea7m l\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra v\u00e0 \u0111i\u1ec1u n\u00e0y l\u00e0m cho vi\u1ec7c ph\u00e1t hi\u1ec7n tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n.<\/li>\n<\/ol>\n\n\n\n

    2.2 S\u1eed d\u1ee5ng thi\u1ebft k\u1ebf b\u1ea3ng \u0111\u1ed1i x\u1ee9ng khi c\u00f3 th\u1ec3<\/h3>\n\n\n\n
      \n
    1. Quy t\u1eafc thi\u1ebft k\u1ebf. N\u00ean \u00e1p d\u1ee5ng thi\u1ebft k\u1ebf b\u1ea3ng m\u1ea1ch \u0111\u1ed1i x\u1ee9ng. \u0110\u1ed1i x\u1ee9ng gi\u00fap duy tr\u00ec s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co ng\u00f3t \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c giao trong b\u1ea3ng m\u1ea1ch.<\/li>\n\n\n\n
    2. Ghi ch\u00fa v\u1ecb tr\u00ed c\u00e1c \u0111\u01a1n v\u1ecb tr\u00ean b\u1ea3ng m\u1ea1ch. N\u1ebfu c\u00f3 th\u1ec3, y\u00eau c\u1ea7u kh\u00e1ch h\u00e0ng cho ph\u00e9p s\u1eed d\u1ee5ng c\u00e1c d\u1ea5u hi\u1ec7u bi\u00ean qu\u00e1 tr\u00ecnh nh\u01b0 v\u1ebft \u0103n m\u00f2n ho\u1eb7c v\u0103n b\u1ea3n in \u0111\u1ec3 \u0111\u00e1nh d\u1ea5u v\u1ecb tr\u00ed c\u1ee7a t\u1eebng \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n tr\u00ean b\u1ea3ng m\u1ea1ch. \u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft k\u1ebf kh\u00f4ng \u0111\u1ed1i x\u1ee9ng, vi\u1ec7c \u0111\u00e1nh d\u1ea5u n\u00e0y s\u1ebd h\u1eefu \u00edch h\u01a1n. N\u1ebfu sau n\u00e0y m\u1ed9t \u0111\u01a1n v\u1ecb tr\u00ean b\u1ea3ng m\u1ea1ch c\u00f3 k\u00edch th\u01b0\u1edbc b\u1ea5t th\u01b0\u1eddng ho\u1eb7c l\u1ed7i pad \u0111\u00e1y c\u1ee7a l\u1ed7 m\u00f9 c\u1ee5c b\u1ed9, b\u1ea1n c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u01a1n v\u1ecb l\u1ed7i v\u00e0 lo\u1ea1i b\u1ecf n\u00f3 tr\u01b0\u1edbc khi v\u1eadn chuy\u1ec3n. \u0110i\u1ec1u n\u00e0y gi\u00fap tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 l\u1eafp r\u00e1p v\u00e0 khi\u1ebfu n\u1ea1i t\u1eeb ph\u00eda kh\u00e1ch h\u00e0ng.<\/li>\n<\/ol>\n\n\n\n
      \"Try<\/figure>\n\n\n\n

      2.3 T\u1ea1o b\u1ea3ng th\u1eed nghi\u1ec7m \u0111\u1ec3 thi\u1ebft l\u1eadp t\u1ef7 l\u1ec7 chuy\u1ec3n \u0111\u1ed5i v\u00e0 x\u00e1c minh.<\/h3>\n\n\n\n
        \n
      1. T\u1ea1o m\u1ed9t b\u1ea3ng th\u1eed nghi\u1ec7m quy m\u00f4. L\u00e0m m\u1ed9t b\u1ea3ng th\u1eed nghi\u1ec7m ban \u0111\u1ea7u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u1ef7 l\u1ec7 thu nh\u1ecf phim ch\u00ednh x\u00e1c cho qu\u00e1 tr\u00ecnh chuy\u1ec3n l\u1edbp trong \u0111\u1ea7u ti\u00ean. B\u01b0\u1edbc n\u00e0y r\u1ea5t quan tr\u1ecdng khi b\u1ea1n thay \u0111\u1ed5i v\u1eadt li\u1ec7u n\u1ec1n ho\u1eb7c nh\u00e0 cung c\u1ea5p phim P \u0111\u1ec3 gi\u1ea3m chi ph\u00ed ho\u1eb7c v\u00ec c\u00e1c l\u00fd do kh\u00e1c.<\/li>\n\n\n\n
      2. X\u1eed l\u00fd c\u00e1c b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn. N\u1ebfu ph\u00e1t hi\u1ec7n c\u00e1c b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n, h\u00e3y ki\u1ec3m tra xem c\u00e1c l\u1ed7 via c\u1ee7a \u0111\u01a1n v\u1ecb c\u00f3 ph\u1ea3i t\u1eeb qu\u00e1 tr\u00ecnh khoan th\u1ee9 c\u1ea5p hay kh\u00f4ng. \u0110\u1ed1i v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch tu\u00e2n theo quy tr\u00ecnh khoan th\u00f4ng th\u01b0\u1eddng, b\u1ea1n c\u00f3 th\u1ec3 chuy\u1ec3n ch\u00fang sang qu\u00e1 tr\u00ecnh chuy\u1ec3n l\u1edbp ngo\u00e0i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 phim theo nhu c\u1ea7u. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi c\u00e1c b\u1ea3ng m\u1ea1ch c\u00f3 l\u1ed7 khoan th\u1ee9 c\u1ea5p, h\u00e3y x\u1eed l\u00fd c\u00e1c b\u1ea3ng m\u1ea1ch b\u1ea5t th\u01b0\u1eddng v\u1edbi s\u1ef1 c\u1ea9n th\u1eadn \u0111\u1eb7c bi\u1ec7t. B\u1ea1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o k\u00edch th\u01b0\u1edbc m\u1eabu ho\u00e0n thi\u1ec7n v\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb m\u1ee5c ti\u00eau \u0111\u1ebfn l\u1ed7 via (\u0111\u1ee5c l\u1ed7 th\u1ee9 c\u1ea5p) \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n. Gi\u1eef l\u1ea1i h\u1ed3 s\u01a1: thu th\u1eadp d\u1eef li\u1ec7u t\u1ef7 l\u1ec7 c\u1ee7a b\u1ea3ng \u0111\u1ea7u ti\u00ean cho c\u00e1c b\u1ea3ng lamination th\u1ee9 c\u1ea5p \u0111\u1ec3 c\u00f3 c\u01a1 s\u1edf tham kh\u1ea3o.<\/li>\n<\/ol>\n\n\n\n

        2.4 \u0110i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh b\u1eb1ng d\u1eef li\u1ec7u \u0111\u0103ng k\u00fd l\u1edbp trong b\u1eb1ng tia X<\/h3>\n\n\n\n
          \n
        1. S\u1eed d\u1ee5ng \u0111\u0103ng k\u00fd tia X. Sau khi \u00e9p laminate, s\u1eed d\u1ee5ng \u0111o \u0111\u1ea1c tia X c\u1ee7a c\u00e1c m\u1ee5c ti\u00eau l\u1edbp trong tr\u00ean b\u1ea3ng m\u1ea1ch \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u \u0111\u0103ng k\u00fd cho v\u1ecb tr\u00ed c\u00e1c l\u1ed7 khoan. So s\u00e1nh c\u00e1c s\u1ed1 li\u1ec7u \u0111o \u0111\u1ea1c c\u1ee7a c\u00e1c m\u1ee5c ti\u00eau l\u1edbp trong n\u00e0y v\u1edbi d\u1eef li\u1ec7u b\u1ea3ng m\u1eabu \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn. So s\u00e1nh n\u00e0y cho th\u1ea5y li\u1ec7u k\u00edch th\u01b0\u1edbc b\u1ea3ng m\u1ea1ch c\u00f3 b\u1ecb gi\u00e3n n\u1edf ho\u1eb7c co l\u1ea1i b\u1ea5t th\u01b0\u1eddng hay kh\u00f4ng.<\/li>\n\n\n\n
        2. \u0110\u1ed9 dung sai thu nh\u1ecf ch\u1eb7t ch\u1ebd. Ph\u00e2n t\u00edch l\u00fd thuy\u1ebft cho th\u1ea5y \u0111\u1ed9 thu nh\u1ecf \u1edf \u0111\u00e2y c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t trong kho\u1ea3ng \u00b10.025% \u0111\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u k\u00edch th\u01b0\u1edbc cho c\u00e1c t\u1ea5m panel ti\u00eau chu\u1ea9n. Gi\u1eef \u0111\u1ed9 dung sai ch\u1eb7t ch\u1ebd \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 \u0111\u0103ng k\u00fd sau n\u00e0y.<\/li>\n<\/ol>\n\n\n\n
          \"Use<\/figure>\n\n\n\n

          3. T\u00f3m t\u1eaft v\u00e0 L\u1eddi khuy\u00ean cu\u1ed1i c\u00f9ng<\/h2>\n\n\n\n

          B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch c\u00e1c nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y ra s\u1ef1 gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i c\u1ee7a k\u00edch th\u01b0\u1edbc PCB, ch\u00fang ta c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m theo d\u00f5i th\u1ef1c t\u1ebf v\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u1ea3i ti\u1ebfn. C\u00e1c h\u00e0nh \u0111\u1ed9ng ch\u00ednh l\u00e0:<\/p>\n\n\n\n

          \u2022 Ki\u1ec3m tra v\u00e0 theo d\u00f5i t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a nguy\u00ean li\u1ec7u \u0111\u1ea7u v\u00e0o gi\u1eefa c\u00e1c l\u00f4 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

          \u2022 \u01afu ti\u00ean b\u1ed1 c\u1ee5c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed1i x\u1ee9ng v\u00e0 th\u00eam d\u1ea5u v\u1ecb tr\u00ed khi b\u1ed1 c\u1ee5c ph\u1ea3i kh\u00f4ng \u0111\u1ed1i x\u1ee9ng.<\/p>\n\n\n\n

          \u2022 S\u1eed d\u1ee5ng b\u1ea3ng th\u1eed nghi\u1ec7m \u0111\u1ec3 thi\u1ebft l\u1eadp t\u1ef7 l\u1ec7 thu nh\u1ecf l\u1edbp phim trong c\u00f9ng \u0111\u1ea7u ti\u00ean v\u00e0 ghi l\u1ea1i d\u1eef li\u1ec7u.<\/p>\n\n\n\n

          \u2022 S\u1eed d\u1ee5ng \u0111\u0103ng k\u00fd tia X sau khi \u00e9p laminate \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1edbm s\u1ef1 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc.<\/p>\n\n\n\n

          \u2022 X\u1eed l\u00fd c\u00e1c t\u1ea5m panel c\u00f3 l\u1ed7 khoan th\u1ee9 c\u1ea5p m\u1ed9t c\u00e1ch kh\u00e1c bi\u1ec7t v\u00e0 v\u1edbi s\u1ef1 ki\u1ec3m tra k\u1ef9 l\u01b0\u1ee1ng h\u01a1n.<\/p>\n\n\n\n

          T\u00f4i hy v\u1ecdng c\u00e1c chuy\u00ean gia trong l\u0129nh v\u1ef1c PCB s\u1ebd th\u1ea5y nh\u1eefng \u00fd t\u01b0\u1edfng n\u00e0y h\u1eefu \u00edch. H\u00e3y k\u1ebft h\u1ee3p c\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y v\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1ea3n xu\u1ea5t c\u1ee7a ri\u00eang b\u1ea1n. Sau \u0111\u00f3, h\u00e3y ch\u1ecdn nh\u1eefng c\u1ea3i ti\u1ebfn ph\u00f9 h\u1ee3p v\u1edbi nh\u00e0 m\u00e1y v\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a b\u1ea1n. N\u1ebfu b\u1ea1n mu\u1ed1n, t\u00f4i c\u00f3 th\u1ec3 chu\u1ea9n b\u1ecb m\u1ed9t danh s\u00e1ch ki\u1ec3m tra ng\u1eafn g\u1ecdn ho\u1eb7c m\u1ed9t m\u1eabu bi\u1ec3u cho vi\u1ec7c ki\u1ec3m tra v\u1eadt li\u1ec7u v\u00e0 ghi ch\u00e9p v\u1ec1 b\u1ea3ng m\u1ea1ch th\u1eed nghi\u1ec7m m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp t\u1ea1i x\u01b0\u1edfng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

          4. \u01afu \u0111i\u1ec3m c\u1ee7a Philifast trong vi\u1ec7c ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc PCB v\u00e0 \u1ed5n \u0111\u1ecbnh quy tr\u00ecnh<\/h2>\n\n\n\n

          4.1 N\u0103ng l\u1ef1c s\u1ea3n xu\u1ea5t v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n\n\n\n

          Philifast c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m th\u1ef1c ti\u1ec5n n\u1ed5i b\u1eadt trong vi\u1ec7c ki\u1ec3m so\u00e1t s\u1ef1 thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc PCB v\u00e0 cung c\u1ea5p c\u00e1c bo m\u1ea1ch \u1ed5n \u0111\u1ecbnh, \u0111\u00e1ng tin c\u1eady. C\u00f4ng ty \u0111\u00e3 ho\u1ea1t \u0111\u1ed9ng trong nhi\u1ec1u n\u0103m v\u00e0 s\u1eed d\u1ee5ng c\u00e1c d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn c\u00f9ng c\u00e1c c\u00f4ng c\u1ee5 ki\u1ec3m tra hi\u1ec7n \u0111\u1ea1i. Philifast s\u1edf h\u1eefu c\u00e1c ch\u1ee9ng ch\u1ec9 ch\u1ea5t l\u01b0\u1ee3ng quan tr\u1ecdng v\u00e0 v\u1eadn h\u00e0nh m\u1ed9t \u0111\u1ed9i ng\u0169 k\u1ef9 s\u01b0 l\u00e0nh ngh\u1ec1 chuy\u00ean x\u1eed l\u00fd bo m\u1ea1ch th\u1eed nghi\u1ec7m, ki\u1ec3m tra nguy\u00ean v\u1eadt li\u1ec7u \u0111\u1ea7u v\u00e0o v\u00e0 thi\u1ebft l\u1eadp quy tr\u00ecnh s\u1ea3n xu\u1ea5t. Philifast c\u00f3 nhi\u1ec1u SMT <\/a>D\u00e2y chuy\u1ec1n, ki\u1ec3m tra tia X, ki\u1ec3m tra AOI v\u00e0 SPI, v\u00e0 m\u1ed9t quy tr\u00ecnh ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7. Bo m\u1ea1ch in (PCBA) <\/a>d\u00f2ng, t\u1ea5t c\u1ea3 \u0111\u1ec1u gi\u00fap ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u0103ng k\u00fd ngay t\u1eeb giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a quy tr\u00ecnh.<\/p>\n\n\n\n

          4.2 C\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t quy tr\u00ecnh v\u00e0 t\u00edch h\u1ee3p d\u1ecbch v\u1ee5<\/h3>\n\n\n\n

          Philifast \u00e1p d\u1ee5ng c\u00e1c ki\u1ec3m tra nghi\u00eam ng\u1eb7t \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u \u0111\u1ea7u v\u00e0o, ghi l\u1ea1i d\u1eef li\u1ec7u \u0111o l\u01b0\u1eddng b\u1ea3ng m\u1eabu v\u00e0 s\u1eed d\u1ee5ng \u0111\u0103ng k\u00fd tia X \u0111\u1ec3 theo d\u00f5i c\u00e1c m\u1ee5c ti\u00eau l\u1edbp trong sau khi lamination. C\u00e1c b\u01b0\u1edbc n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro co ng\u00f3t ho\u1eb7c gi\u00e3n n\u1edf sau n\u00e0y v\u00e0 d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n c\u00e1c \u0111\u01a1n v\u1ecb l\u1ed7i trong b\u1ea3ng m\u1ea1ch tr\u01b0\u1edbc khi xu\u1ea5t x\u01b0\u1edfng. Philifast c\u0169ng cung c\u1ea5p d\u1ecbch v\u1ee5 PCB v\u00e0 PCBA tr\u1ecdn g\u00f3i t\u1eeb giai \u0111o\u1ea1n m\u1eabu \u0111\u1ebfn s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t, do \u0111\u00f3 c\u00f9ng m\u1ed9t \u0111\u1ed9i ng\u0169 thi\u1ebft l\u1eadp m\u1eabu b\u1ea3ng m\u1ea1ch c\u00f3 th\u1ec3 theo d\u00f5i qu\u00e1 tr\u00ecnh l\u1eafp r\u00e1p v\u00e0 ki\u1ec3m tra \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 nh\u1ea5t qu\u00e1n.<\/p>\n\n\n\n

          <\/p>","protected":false},"excerpt":{"rendered":"

          This note explains why PCB panels can change size during processing and how to control this. From the first inner-layer 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