{"id":4709,"date":"2026-02-02T09:03:10","date_gmt":"2026-02-02T09:03:10","guid":{"rendered":"https:\/\/flj-pcb.com\/?p=4709"},"modified":"2026-02-02T09:03:16","modified_gmt":"2026-02-02T09:03:16","slug":"common-problems-in-fpc-circuit-design","status":"publish","type":"post","link":"https:\/\/flj-pcb.com\/vi\/common-problems-in-fpc-circuit-design\/","title":{"rendered":"C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p trong thi\u1ebft k\u1ebf m\u1ea1ch FPC"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Thi\u1ebft k\u1ebf m\u1ea1ch FPC \u2014 C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>S\u1ef1 ch\u1ed3ng ch\u00e9o gi\u1eefa c\u00e1c \u0111i\u1ec3m h\u00e0n (tr\u1eeb c\u00e1c \u0111i\u1ec3m h\u00e0n SMD) c\u00f3 ngh\u0129a l\u00e0 s\u1ef1 ch\u1ed3ng ch\u00e9o gi\u1eefa c\u00e1c l\u1ed7.<br>Khi c\u00e1c l\u1ed7 khoan tr\u00f9ng nhau, m\u0169i khoan c\u00f3 th\u1ec3 khoan v\u00e0o c\u00f9ng m\u1ed9t v\u1ecb tr\u00ed nhi\u1ec1u l\u1ea7n. M\u0169i khoan c\u00f3 th\u1ec3 b\u1ecb g\u00e3y. L\u1ed7 khoan c\u00f3 th\u1ec3 b\u1ecb h\u01b0 h\u1ecfng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn ph\u1ebf ph\u1ea9m ho\u1eb7c ph\u1ea3i gia c\u00f4ng l\u1ea1i.<\/li>\n\n\n\n<li>Trong c\u00e1c b\u1ea3ng m\u1ea1ch nhi\u1ec1u l\u1edbp, hai l\u1ed7 c\u00f3 th\u1ec3 ch\u1ed3ng l\u00ean nhau.<br>V\u00ed d\u1ee5, m\u1ed9t l\u1ed7 l\u00e0 mi\u1ebfng c\u00e1ch ly. L\u1ed7 c\u00f2n l\u1ea1i l\u00e0 mi\u1ebfng k\u1ebft n\u1ed1i c\u00f3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t (gi\u1ea3m nhi\u1ec7t). Sau khi v\u1ebd b\u1ea3n \u0111\u1ed3 m\u00e0ng, k\u1ebft qu\u1ea3 c\u00f3 th\u1ec3 ch\u1ec9 hi\u1ec3n th\u1ecb mi\u1ebfng c\u00e1ch ly. Chi ti\u1ebft \u0111\u00f3 c\u00f3 th\u1ec3 b\u1ecb lo\u1ea1i b\u1ecf.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">I. S\u1ef1 ch\u1ed3ng ch\u00e9o c\u1ee7a c\u00e1c mi\u1ebfng \u0111\u1ec7m<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>S\u1ef1 ch\u1ed3ng ch\u00e9o gi\u1eefa c\u00e1c \u0111i\u1ec3m h\u00e0n (tr\u1eeb c\u00e1c \u0111i\u1ec3m h\u00e0n g\u1eafn b\u1ec1 m\u1eb7t) c\u00f3 ngh\u0129a l\u00e0 s\u1ef1 ch\u1ed3ng ch\u00e9o gi\u1eefa c\u00e1c l\u1ed7.<br>Trong qu\u00e1 tr\u00ecnh khoan, m\u0169i khoan s\u1ebd khoan v\u00e0o c\u00f9ng m\u1ed9t v\u1ecb tr\u00ed nhi\u1ec1u l\u1ea7n. M\u0169i khoan c\u00f3 th\u1ec3 b\u1ecb g\u00e3y. L\u1ed7 khoan s\u1ebd b\u1ecb h\u01b0 h\u1ecfng.<\/li>\n\n\n\n<li>Trong c\u00e1c b\u1ea3ng m\u1ea1ch nhi\u1ec1u l\u1edbp, hai l\u1ed7 c\u00f3 th\u1ec3 ch\u1ed3ng l\u00ean nhau.<br>V\u00ed d\u1ee5, m\u1ed9t l\u1ed7 l\u00e0 \u0111i\u1ec3m c\u00e1ch ly. M\u1ed9t l\u1ed7 kh\u00e1c l\u00e0 \u0111i\u1ec3m k\u1ebft n\u1ed1i, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec3m gi\u1ea3i nhi\u1ec7t. Sau khi m\u00e0ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t, h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb \u0111i\u1ec3m c\u00e1ch ly. \u0110i\u1ec1u n\u00e0y s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c lo\u1ea1i b\u1ecf s\u1ea3n ph\u1ea9m.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">II. S\u1eed d\u1ee5ng sai m\u1ee5c \u0111\u00edch c\u00e1c l\u1edbp \u0111\u1ed3 h\u1ecda<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>M\u1ed9t s\u1ed1 l\u1edbp \u0111\u1ed3 h\u1ecda c\u00f3 c\u00e1c \u0111\u01b0\u1eddng v\u1ebd th\u1eeba. M\u1ed9t b\u1ea3ng m\u1ea1ch b\u1ed1n l\u1edbp c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1ebd v\u1edbi c\u00e1c \u0111\u01b0\u1eddng gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ea3ng m\u1ea1ch n\u0103m l\u1edbp. \u0110i\u1ec1u n\u00e0y g\u00e2y ra s\u1ef1 nh\u1ea7m l\u1eabn.<\/li>\n\n\n\n<li>\u0110\u1ec3 ti\u1ebft ki\u1ec7m th\u1eddi gian, m\u1ed9t s\u1ed1 nh\u00e0 thi\u1ebft k\u1ebf s\u1eed d\u1ee5ng l\u1edbp Board trong Protel \u0111\u1ec3 v\u1ebd c\u00e1c \u0111\u01b0\u1eddng tr\u00ean nhi\u1ec1u l\u1edbp. H\u1ecd c\u0169ng v\u1ebd c\u00e1c \u0111\u01b0\u1eddng ch\u00fa th\u00edch tr\u00ean l\u1edbp Board. Khi t\u1ea1o d\u1eef li\u1ec7u photoplot, h\u1ecd c\u00f3 th\u1ec3 kh\u00f4ng ch\u1ecdn l\u1edbp Board. Khi \u0111\u00f3, m\u1ed9t s\u1ed1 \u0111\u01b0\u1eddng m\u1ea1ch s\u1ebd b\u1ecb m\u1ea5t v\u00e0 m\u1ea1ch \u0111i\u1ec7n s\u1ebd b\u1ecb h\u1edf. Ho\u1eb7c h\u1ecd c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c ch\u00fa th\u00edch tr\u00ean l\u1edbp Board v\u00e0 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u1eadp m\u1ea1ch. V\u00ec v\u1eady, h\u00e3y \u0111\u1ea3m b\u1ea3o c\u00e1c l\u1edbp \u0111\u1ed3 h\u1ecda lu\u00f4n \u0111\u1ea7y \u0111\u1ee7 v\u00e0 r\u00f5 r\u00e0ng khi thi\u1ebft k\u1ebf.<\/li>\n\n\n\n<li>H\u00e3y ph\u00e1 v\u1ee1 quy tr\u00ecnh th\u00f4ng th\u01b0\u1eddng. V\u00ed d\u1ee5: \u0111\u1eb7t m\u1eb7t linh ki\u1ec7n \u1edf l\u1edbp d\u01b0\u1edbi c\u00f9ng v\u00e0 m\u1eb7t h\u00e0n \u1edf l\u1edbp tr\u00ean c\u00f9ng. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c l\u1eafp r\u00e1p v\u00e0 h\u00e0n tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"441\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Random-Placement-of-Silkscreen-Text.jpg\" alt=\"Random Placement of Silkscreen Text\" class=\"wp-image-4711\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Random-Placement-of-Silkscreen-Text.jpg 800w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Random-Placement-of-Silkscreen-Text-300x165.jpg 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Random-Placement-of-Silkscreen-Text-768x423.jpg 768w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Random-Placement-of-Silkscreen-Text-18x10.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">III. \u0110\u1eb7t ng\u1eabu nhi\u00ean v\u0103n b\u1ea3n in l\u1ee5a<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ch\u1eef in c\u00f3 th\u1ec3 che l\u1ea5p c\u00e1c mi\u1ebfng \u0111\u1ec7m ho\u1eb7c c\u00e1c \u0111i\u1ec3m h\u00e0n SMD. \u0110i\u1ec1u n\u00e0y g\u00e2y kh\u00f3 kh\u0103n cho vi\u1ec7c ki\u1ec3m tra \u0111i\u1ec7n v\u00e0 h\u00e0n linh ki\u1ec7n.<\/li>\n\n\n\n<li>N\u1ebfu ch\u1eef qu\u00e1 nh\u1ecf th\u00ec vi\u1ec7c in l\u1ee5a s\u1ebd kh\u00f3 th\u1ef1c hi\u1ec7n. N\u1ebfu ch\u1eef qu\u00e1 to th\u00ec c\u00e1c ch\u1eef c\u00e1i s\u1ebd ch\u1ed3ng ch\u00e9o l\u00ean nhau v\u00e0 kh\u00f3 \u0111\u1ecdc.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"500\" height=\"325\" src=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Misuse-of-Graphic-Layers.webp\" alt=\"Misuse of Graphic Layers\" class=\"wp-image-4710\" srcset=\"https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Misuse-of-Graphic-Layers.webp 500w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Misuse-of-Graphic-Layers-300x195.webp 300w, https:\/\/flj-pcb.com\/wp-content\/uploads\/2026\/02\/Misuse-of-Graphic-Layers-18x12.webp 18w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">IV. C\u00e0i \u0111\u1eb7t k\u00edch th\u01b0\u1edbc l\u1ed7 cho mi\u1ebfng \u0111\u1ec7m m\u1ed9t m\u1eb7t<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Mi\u1ebfng \u0111\u1ec7m m\u1ed9t m\u1eb7t th\u01b0\u1eddng kh\u00f4ng c\u1ea7n l\u1ed7. N\u1ebfu c\u1ea7n l\u1ed7, h\u00e3y \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng. K\u00edch th\u01b0\u1edbc l\u1ed7 n\u00ean \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 0 n\u1ebfu kh\u00f4ng c\u1ea7n thi\u1ebft. N\u1ebfu \u0111\u1eb7t m\u1ed9t gi\u00e1 tr\u1ecb s\u1ed1, d\u1eef li\u1ec7u khoan s\u1ebd bao g\u1ed3m t\u1ecda \u0111\u1ed9 l\u1ed7 \u0111\u00f3 v\u00e0 g\u00e2y ra s\u1ef1 c\u1ed1.<\/li>\n\n\n\n<li>N\u1ebfu mi\u1ebfng \u0111\u1ec7m m\u1ed9t m\u1eb7t c\u1ea7n c\u00f3 l\u1ed7, h\u00e3y \u0111\u00e1nh d\u1ea5u ri\u00eang cho n\u00f3.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">V. S\u1eed d\u1ee5ng c\u00e1c v\u00f9ng t\u00f4 m\u00e0u \u0111\u1ec3 v\u1ebd c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>N\u1ebfu b\u1ea1n v\u1ebd c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac c\u00f3 v\u00f9ng \u0111\u01b0\u1ee3c t\u00f4 \u0111\u1ea7y, thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua ki\u1ec3m tra DRC. Tuy nhi\u00ean, quy tr\u00ecnh s\u1ea3n xu\u1ea5t kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac nh\u01b0 v\u1eady. Nh\u1eefng \u0111i\u1ec3m ti\u1ebfp x\u00fac gi\u1ea3 n\u00e0y kh\u00f4ng th\u1ec3 t\u1ea1o ra d\u1eef li\u1ec7u l\u1edbp che h\u00e0n ch\u00ednh x\u00e1c. Trong qu\u00e1 tr\u00ecnh ph\u1ee7 l\u1edbp che h\u00e0n, v\u00f9ng \u0111\u01b0\u1ee3c t\u00f4 \u0111\u1ea7y s\u1ebd b\u1ecb l\u1edbp che h\u00e0n che ph\u1ee7. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c h\u00e0n linh ki\u1ec7n tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">VI. C\u00e1c khu v\u1ef1c ngu\u1ed3n ho\u1eb7c \u0111\u1ea5t v\u1eeba l\u00e0 mi\u1ebfng t\u1ea3n nhi\u1ec7t v\u1eeba l\u00e0 \u0111\u01b0\u1eddng d\u1eabn<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>N\u1ebfu khu v\u1ef1c ngu\u1ed3n ho\u1eb7c khu v\u1ef1c n\u1ed1i \u0111\u1ea5t \u0111\u01b0\u1ee3c v\u1ebd d\u01b0\u1edbi d\u1ea1ng c\u00e1c v\u00f9ng t\u1ea3n nhi\u1ec7t, h\u00ecnh \u1ea3nh tr\u00ean b\u1ea3ng m\u1ea1ch th\u1ef1c t\u1ebf s\u1ebd ng\u01b0\u1ee3c l\u1ea1i so v\u1edbi thi\u1ebft k\u1ebf. T\u1ea5t c\u1ea3 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ec1u l\u00e0 \u0111\u01b0\u1eddng d\u1eabn c\u00e1ch ly. C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u1ea7n ph\u1ea3i n\u1eafm r\u00f5 \u0111i\u1ec1u n\u00e0y.<\/li>\n\n\n\n<li>Khi v\u1ebd nhi\u1ec1u nh\u00f3m c\u00e1ch ly ngu\u1ed3n ho\u1eb7c \u0111\u1ea5t, h\u00e3y c\u1ea9n th\u1eadn. \u0110\u1eebng \u0111\u1ec3 l\u1ea1i kho\u1ea3ng tr\u1ed1ng khi\u1ebfn hai nh\u00f3m ngu\u1ed3n b\u1ecb ch\u1eadp m\u1ea1ch. \u0110\u1eebng che khu\u1ea5t khu v\u1ef1c c\u1ea7n k\u1ebft n\u1ed1i v\u00e0 chia c\u1eaft v\u00f9ng ngu\u1ed3n.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">VII. \u0110\u1ecbnh ngh\u0129a ch\u01b0a r\u00f5 r\u00e0ng v\u1ec1 c\u1ea5u tr\u00fac ch\u1ebf t\u1ea1o v\u00e0 th\u1ee9 t\u1ef1 c\u00e1c l\u1edbp<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>N\u1ebfu b\u1ea3ng m\u1ea1ch m\u1ed9t m\u1eb7t ch\u1ec9 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tr\u00ean l\u1edbp tr\u00ean c\u00f9ng v\u00e0 kh\u00f4ng c\u00f3 ch\u00fa th\u00edch n\u00e0o \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, th\u00ec s\u1ebd kh\u00f4ng r\u00f5 m\u1eb7t n\u00e0o l\u00e0 m\u1eb7t tr\u01b0\u1edbc hay m\u1eb7t sau. B\u1ea3ng m\u1ea1ch sau khi ho\u00e0n thi\u1ec7n c\u00f3 th\u1ec3 kh\u00f3 h\u00e0n sau khi c\u00e1c linh ki\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t.<\/li>\n\n\n\n<li>V\u00ed d\u1ee5, m\u1ed9t b\u1ea3ng m\u1ea1ch b\u1ed1n l\u1edbp c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo th\u1ee9 t\u1ef1 TOP, MID1, MID2, BOTTOM. N\u1ebfu nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00f4ng x\u1ebfp c\u00e1c l\u1edbp theo \u0111\u00fang th\u1ee9 t\u1ef1 n\u00e0y, s\u1ebd x\u1ea3y ra s\u1ef1 c\u1ed1. Do \u0111\u00f3, h\u00e3y ghi ch\u00fa r\u00f5 r\u00e0ng v\u1ec1 th\u1ee9 t\u1ef1 c\u00e1c l\u1edbp.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">VIII. C\u00f3 qu\u00e1 nhi\u1ec1u v\u00f9ng t\u00f4 m\u00e0u ho\u1eb7c c\u00e1c v\u00f9ng t\u00f4 m\u00e0u \u0111\u01b0\u1ee3c t\u00f4 b\u1eb1ng nh\u1eefng \u0111\u01b0\u1eddng r\u1ea5t m\u1ea3nh<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>D\u1eef li\u1ec7u Photoplot c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ea7y \u0111\u1ee7 v\u00e0 c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t.<\/li>\n\n\n\n<li>C\u00e1c v\u00f9ng t\u00f4 m\u00e0u trong b\u1ea3n v\u1ebd \u1ea3nh \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng nhi\u1ec1u \u0111\u01b0\u1eddng th\u1eb3ng. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t t\u1eadp d\u1eef li\u1ec7u r\u1ea5t l\u1edbn. Kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 khi\u1ebfn vi\u1ec7c x\u1eed l\u00fd d\u1eef li\u1ec7u tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">IX. C\u00e1c \u0111i\u1ec3m h\u00e0n SMD qu\u00e1 ng\u1eafn<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0110i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn th\u1eed nghi\u1ec7m t\u00ednh li\u00ean t\u1ee5c \u0111i\u1ec7n. \u0110\u1ed1i v\u1edbi c\u00e1c m\u1ea1ch c\u00f3 m\u1eadt \u0111\u1ed9 r\u1ea5t cao <a href=\"https:\/\/flj-pcb.com\/vi\/pcb-assembly\/smt-assembly\/\" data-type=\"page\" data-id=\"1923\">SMD <\/a>Tr\u00ean c\u00e1c linh ki\u1ec7n, kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac r\u1ea5t h\u1eb9p v\u00e0 chi\u1ec1u r\u1ed9ng c\u1ee7a \u0111i\u1ec3m ti\u1ebfp x\u00fac r\u1ea5t m\u1ecfng. C\u00e1c ch\u00e2n ki\u1ec3m tra ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed xen k\u1ebd theo chi\u1ec1u d\u1ecdc ho\u1eb7c chi\u1ec1u ngang. N\u1ebfu \u0111i\u1ec3m ti\u1ebfp x\u00fac qu\u00e1 ng\u1eafn, c\u00e1c ch\u00e2n ki\u1ec3m tra c\u00f3 th\u1ec3 kh\u00f4ng kh\u1edbp \u0111\u01b0\u1ee3c. \u0110i\u1ec1u n\u00e0y khi\u1ebfn vi\u1ec7c ki\u1ec3m tra tr\u1edf n\u00ean kh\u00f3 kh\u0103n ngay c\u1ea3 khi linh ki\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">X. L\u01b0\u1edbi d\u00f9ng cho c\u00e1c khu v\u1ef1c \u0111\u1ed3ng c\u00f3 di\u1ec7n t\u00edch l\u1edbn c\u00f3 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u1eaft l\u01b0\u1edbi qu\u00e1 nh\u1ecf<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u0110\u1ed1i v\u1edbi m\u1ed9t m\u1ea1ng l\u01b0\u1edbi \u0111\u1ed3ng c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng d\u1eabn c\u00f3 th\u1ec3 qu\u00e1 nh\u1ecf (d\u01b0\u1edbi 0,3 mm). Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t b\u1ea3ng m\u1ea1ch, sau khi tr\u00e1ng phim, nhi\u1ec1u m\u1ea3nh phim nh\u1ecf c\u00f3 th\u1ec3 b\u00e1m d\u00ednh tr\u00ean b\u1ea3ng m\u1ea1ch. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ee9t m\u1ea1ch.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">XI. Khu v\u1ef1c \u0111\u1ed3ng c\u00f3 di\u1ec7n t\u00edch l\u1edbn n\u1eb1m qu\u00e1 g\u1ea7n \u0111\u01b0\u1eddng vi\u1ec1n bo m\u1ea1ch<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>C\u00e1c v\u00f9ng \u0111\u1ed3ng c\u00f3 di\u1ec7n t\u00edch l\u1edbn ph\u1ea3i c\u00e1ch vi\u1ec1n bo m\u1ea1ch \u00edt nh\u1ea5t 0,2 mm. N\u1ebfu qu\u00e1 tr\u00ecnh \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c phay c\u1eaft v\u00e0o v\u00f9ng \u0111\u1ed3ng, l\u1edbp \u0111\u1ed3ng c\u00f3 th\u1ec3 b\u1ecb bong l\u00ean. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n b\u1ecb bong tr\u00f3c.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">XII. Thi\u1ebft k\u1ebf b\u1ed1 c\u1ee5c b\u1ea3ng m\u1ea1ch kh\u00f4ng r\u00f5 r\u00e0ng<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>M\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng v\u1ebd \u0111\u01b0\u1eddng vi\u1ec1n b\u1ea3ng m\u1ea1ch tr\u00ean l\u1edbp Keep, l\u1edbp Board v\u00e0 l\u1edbp Top overlay, nh\u01b0ng c\u00e1c \u0111\u01b0\u1eddng vi\u1ec1n n\u00e0y kh\u00f4ng kh\u1edbp nhau. \u0110i\u1ec1u n\u00e0y khi\u1ebfn nh\u00e0 s\u1ea3n xu\u1ea5t PCB kh\u00f3 x\u00e1c \u0111\u1ecbnh n\u00ean s\u1eed d\u1ee5ng \u0111\u01b0\u1eddng vi\u1ec1n n\u00e0o.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">XIII. Thi\u1ebft k\u1ebf \u0111\u1ed3 h\u1ecda thi\u1ebfu \u0111\u1ed3ng \u0111\u1ec1u<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Trong qu\u00e1 tr\u00ecnh m\u1ea1 \u0111i\u1ec7n, c\u00e1c hoa v\u0103n kh\u00f4ng \u0111\u1ec1u s\u1ebd d\u1eabn \u0111\u1ebfn l\u1edbp m\u1ea1 kh\u00f4ng \u0111\u1ec1u. \u0110i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">XIV. Khi l\u01b0\u1ee3ng \u0111\u1ed3ng \u0111\u1ed5 v\u00e0o l\u1edbn, h\u00e3y s\u1eed d\u1ee5ng l\u01b0\u1edbi \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng r\u1ed7ng tr\u00ean m\u1ea1ch in (SMT)<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Khi di\u1ec7n t\u00edch \u0111\u1ed5 \u0111\u1ed3ng l\u1edbn, h\u00e3y s\u1eed d\u1ee5ng m\u1eabu l\u01b0\u1edbi. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m nguy c\u01a1 h\u00ecnh th\u00e0nh b\u1ecdt kh\u00ed ho\u1eb7c bong tr\u00f3c trong qu\u00e1 tr\u00ecnh h\u00e0n l\u1ea1i SMT.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">C\u00e1c khuy\u1ebft t\u1eadt tr\u00ean b\u1ec1 m\u1eb7t b\u1ea3ng m\u1ea1ch FPC v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p<\/h1>\n\n\n\n<p>D\u01b0\u1edbi \u0111\u00e2y t\u00f4i li\u1ec7t k\u00ea c\u00e1c khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t th\u01b0\u1eddng g\u1eb7p tr\u00ean <a href=\"https:\/\/flj-pcb.com\/vi\/pcb-manufacturer\/flexible-pcb\/\" data-type=\"page\" data-id=\"1901\">B\u1ea3ng m\u1ea1ch d\u1ebbo FPC<\/a> v\u00e0 n\u00eau r\u00f5 nguy\u00ean nh\u00e2n c\u0169ng nh\u01b0 c\u00e1ch kh\u1eafc ph\u1ee5c.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Xu\u1ea5t hi\u1ec7n b\u1ecdt kh\u00ed gi\u1eefa c\u00e1c r\u00e3nh ho\u1eb7c tr\u00ean m\u1ed9t r\u00e3nh sau khi tr\u00e1ng phim<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> C\u00e1c b\u1ecdt kh\u00ed xu\u1ea5t hi\u1ec7n gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ch ho\u1eb7c tr\u00ean m\u1ed9t \u0111\u01b0\u1eddng m\u1ea1ch th\u01b0\u1eddng x\u1ea3y ra khi kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ch qu\u00e1 h\u1eb9p v\u00e0 chi\u1ec1u cao \u0111\u01b0\u1eddng m\u1ea1ch qu\u00e1 cao. Trong qu\u00e1 tr\u00ecnh in l\u01b0\u1edbi, l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n kh\u00f4ng th\u1ec3 ti\u1ebfp x\u00fac v\u1edbi v\u1eadt li\u1ec7u n\u1ec1n \u1edf gi\u1eefa c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ch cao. Kh\u00f4ng kh\u00ed ho\u1eb7c h\u01a1i \u1ea9m b\u1ecb k\u1eb9t l\u1ea1i gi\u1eefa l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n v\u00e0 v\u1eadt li\u1ec7u n\u1ec1n. Trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng r\u1eafn v\u00e0 chi\u1ebfu s\u00e1ng, kh\u00ed b\u1ecb k\u1eb9t l\u1ea1i s\u1ebd gi\u00e3n n\u1edf v\u00e0 t\u1ea1o th\u00e0nh b\u1ecdt kh\u00ed. \u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u0111\u01a1n l\u1ebb, \u0111\u01b0\u1eddng d\u1eabn qu\u00e1 cao. Khi l\u01b0\u1ee1i g\u1ea1t ch\u1ea1m v\u00e0o \u0111\u01b0\u1eddng d\u1eabn \u1edf m\u1ed9t g\u00f3c l\u1edbn h\u01a1n, l\u1edbp ph\u1ee7 h\u00e0n kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c g\u1ed1c \u0111\u01b0\u1eddng d\u1eabn. Kh\u00ed b\u1ecb k\u1eb9t l\u1ea1i gi\u1eefa g\u1ed1c \u0111\u01b0\u1eddng d\u1eabn v\u00e0 l\u1edbp ph\u1ee7 h\u00e0n. Nhi\u1ec7t l\u00e0m h\u00ecnh th\u00e0nh bong b\u00f3ng.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> Ki\u1ec3m tra trong qu\u00e1 tr\u00ecnh in l\u1ee5a. \u0110\u1ea3m b\u1ea3o l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n bao ph\u1ee7 ho\u00e0n to\u00e0n m\u1eb7t \u0111\u00e1y v\u00e0 c\u00e1c c\u1ea1nh c\u1ee7a \u0111\u01b0\u1eddng m\u1ea1ch. Ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd d\u00f2ng \u0111i\u1ec7n m\u1ea1 trong qu\u00e1 tr\u00ecnh m\u1ea1 \u0111i\u1ec7n.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. L\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n trong c\u00e1c l\u1ed7 v\u00e0 c\u00e1c khuy\u1ebft t\u1eadt d\u1ea1ng l\u1ed7 kim nh\u1ecf tr\u00ean b\u1ea3n m\u1ea1ch<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> Khi qu\u00e1 tr\u00ecnh in l\u1ee5a kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang th\u1eddi gian, m\u1ef1c th\u1eeba s\u1ebd t\u00edch t\u1ee5 tr\u00ean l\u01b0\u1edbi in. D\u01b0\u1edbi \u00e1p l\u1ef1c c\u1ee7a dao g\u1ea1t, m\u1ef1c th\u1eeba c\u00f3 th\u1ec3 b\u1ecb \u00e9p v\u00e0o c\u00e1c l\u1ed7 tr\u00ean l\u01b0\u1edbi. M\u1eadt \u0111\u1ed9 m\u1eaft l\u01b0\u1edbi th\u1ea5p c\u0169ng khi\u1ebfn m\u1ef1c l\u1ecdt v\u00e0o c\u00e1c l\u1ed7. B\u1ee5i b\u1ea9n tr\u00ean khu\u00f4n quang h\u1ecdc khi\u1ebfn c\u00e1c v\u00f9ng \u0111\u00e1ng l\u1ebd ph\u1ea3i \u0111\u01b0\u1ee3c ph\u01a1i s\u00e1ng l\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c ph\u01a1i s\u00e1ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c xu\u1ea5t hi\u1ec7n c\u00e1c l\u1ed7 nh\u1ecf li ti tr\u00ean b\u1ea3n in trong qu\u00e1 tr\u00ecnh ph\u01a1i s\u00e1ng.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> H\u00e3y in l\u1ee5a \u0111\u00fang th\u1eddi \u0111i\u1ec3m v\u00e0 s\u1eed d\u1ee5ng khu\u00f4n in c\u00f3 m\u1eadt \u0111\u1ed9 l\u01b0\u1edbi cao h\u01a1n. Ki\u1ec3m tra xem khu\u00f4n in c\u00f3 s\u1ea1ch s\u1ebd hay kh\u00f4ng trong qu\u00e1 tr\u00ecnh ph\u01a1i s\u00e1ng.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Hi\u1ec7n t\u01b0\u1ee3ng s\u1eabm m\u00e0u c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ch \u0111\u1ed3ng d\u01b0\u1edbi l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> Sau khi lau b\u1ea3ng m\u1ea1ch, n\u01b0\u1edbc v\u1eabn ch\u01b0a kh\u00f4. B\u1ec1 m\u1eb7t b\u1ea3ng m\u1ea1ch b\u1ecb \u01b0\u1edbt tr\u01b0\u1edbc khi in l\u1edbp ph\u1ee7 ch\u1ed1ng h\u00e0n. Ho\u1eb7c ng\u00f3n tay ho\u1eb7c b\u00e0n tay c\u1ee7a ng\u01b0\u1eddi \u0111\u00e3 ch\u1ea1m v\u00e0o b\u1ea3ng m\u1ea1ch.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> Trong qu\u00e1 tr\u00ecnh in l\u1ee5a, h\u00e3y ki\u1ec3m tra b\u1eb1ng m\u1eaft th\u01b0\u1eddng xem c\u1ea3 hai b\u1ec1 m\u1eb7t \u0111\u1ed3ng c\u00f3 b\u1ecb oxy h\u00f3a hay kh\u00f4ng. \u0110\u1ea3m b\u1ea3o b\u1ea3ng m\u1ea1ch kh\u00f4 r\u00e1o v\u00e0 s\u1ea1ch s\u1ebd tr\u01b0\u1edbc khi in.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. B\u1ee5i b\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t v\u00e0 b\u1ec1 m\u1eb7t kh\u00f4ng b\u1eb1ng ph\u1eb3ng<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> B\u1ee5i b\u1ea9n xu\u1ea5t ph\u00e1t t\u1eeb b\u1ee5i v\u00e0 c\u00e1c s\u1ee3i l\u01a1 l\u1eedng trong kh\u00f4ng kh\u00ed. B\u1ec1 m\u1eb7t kh\u00f4ng \u0111\u1ec1u x\u1ea3y ra khi m\u00e0n h\u00ecnh kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch, khi\u1ebfn m\u1ef1c th\u1eeba c\u00f2n s\u00f3t l\u1ea1i tr\u00ean m\u00e0n h\u00ecnh v\u00e0 b\u1ecb \u00e9p d\u00ednh v\u00e0o b\u1ea3ng m\u1ea1ch.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> Gi\u1eef ph\u00f2ng s\u1ea1ch s\u1ebd v\u00e0 \u0111\u1ea3m b\u1ea3o ng\u01b0\u1eddi v\u1eadn h\u00e0nh lu\u00f4n s\u1ea1ch s\u1ebd. Ng\u0103n ch\u1eb7n nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng li\u00ean quan v\u00e0o ph\u00f2ng s\u1ea1ch. Th\u01b0\u1eddng xuy\u00ean v\u1ec7 sinh ph\u00f2ng. Trong qu\u00e1 tr\u00ecnh in l\u1ee5a, h\u00e3y in l\u00ean gi\u1ea5y ngay l\u1eadp t\u1ee9c \u0111\u1ec3 lo\u1ea1i b\u1ecf m\u1ef1c th\u1eeba tr\u00ean khu\u00f4n in.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. L\u1ed7i \u0111\u0103ng k\u00fd v\u00e0 c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> S\u1ef1 l\u1ec7ch v\u1ecb tr\u00ed in x\u1ea3y ra khi b\u1ea3ng m\u1ea1ch kh\u00f4ng \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn trong qu\u00e1 tr\u00ecnh in l\u1ee5a. M\u1ef1c c\u00f2n s\u00f3t l\u1ea1i tr\u00ean khu\u00f4n in kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch k\u1ecbp th\u1eddi v\u00e0 b\u1ecb \u00e9p l\u00ean b\u1ea3ng m\u1ea1ch theo m\u1ed9t m\u1eabu nh\u1ea5t \u0111\u1ecbnh, d\u1eabn \u0111\u1ebfn vi\u1ec7c xu\u1ea5t hi\u1ec7n c\u00e1c ch\u1ea5m nh\u1ecf g\u1ea7n c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac. C\u00e1c v\u1ebft n\u1ee9t nh\u1ecf xu\u1ea5t hi\u1ec7n khi \u0111\u1ed9 ph\u01a1i s\u00e1ng qu\u00e1 y\u1ebfu. L\u01b0\u1ee3ng \u00e1nh s\u00e1ng ho\u1eb7c th\u1eddi gian ph\u01a1i s\u00e1ng kh\u00f4ng \u0111\u1ee7, d\u1eabn \u0111\u1ebfn vi\u1ec7c h\u00ecnh th\u00e0nh c\u00e1c v\u1ebft n\u1ee9t nh\u1ecf.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> S\u1eed d\u1ee5ng c\u00e1c ch\u1ed1t \u0111\u1ecbnh v\u1ecb \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh t\u1ea5m b\u1ea3n. Lo\u1ea1i b\u1ecf m\u1ef1c th\u1eeba tr\u00ean m\u00e0n h\u00ecnh b\u1eb1ng c\u00e1ch th\u01b0\u1eddng xuy\u00ean in th\u1eed l\u00ean gi\u1ea5y. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 ph\u01a1i s\u00e1ng sao cho n\u0103ng l\u01b0\u1ee3ng \u0111\u00e8n v\u00e0 th\u1eddi gian ph\u01a1i s\u00e1ng \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c ph\u01a1i s\u00e1ng ph\u00f9 h\u1ee3p. C\u1ed1 g\u1eafng duy tr\u00ec ch\u1ec9 s\u1ed1 ph\u01a1i s\u00e1ng trong ph\u1ea1m vi th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh h\u00ecnh th\u00e0nh v\u1ebft n\u1ee9t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 m\u00e0u s\u1eafc gi\u1eefa hai m\u1eb7t v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng in thi\u1ebfu (c\u00e1c \u0111\u1ed1m tr\u1eafng)<\/h2>\n\n\n\n<p><strong>Nguy\u00ean nh\u00e2n ch\u00ednh:<\/strong> Hai m\u1eb7t c\u00f3 s\u1ed1 l\u1ea7n g\u1ea1t m\u1ef1c kh\u00e1c nhau trong qu\u00e1 tr\u00ecnh in. Ho\u1eb7c m\u1ef1c m\u1edbi v\u00e0 m\u1ef1c c\u0169 \u0111\u00e3 b\u1ecb tr\u1ed9n l\u1eabn. V\u00ed d\u1ee5, m\u1ed9t m\u1eb7t s\u1eed d\u1ee5ng m\u1ef1c m\u1edbi \u0111\u00e3 \u0111\u01b0\u1ee3c khu\u1ea5y \u0111\u1ec1u, c\u00f2n m\u1eb7t kia s\u1eed d\u1ee5ng m\u1ef1c c\u0169 \u0111\u1ec3 l\u00e2u ng\u00e0y.<\/p>\n\n\n\n<p>Hi\u1ec7n t\u01b0\u1ee3ng thi\u1ebfu m\u1ef1c in ho\u1eb7c \u201cb\u1ecf s\u00f3t m\u1ef1c in\u201d x\u1ea3y ra khi d\u00f2ng \u0111i\u1ec7n m\u1ea1 qu\u00e1 cao. L\u1edbp m\u1ea1 t\u1ea1o ra \u0111\u01b0\u1eddng in qu\u00e1 cao. Trong qu\u00e1 tr\u00ecnh in l\u1ee5a, chi\u1ec1u cao \u0111\u01b0\u1eddng in qu\u00e1 cao khi\u1ebfn l\u01b0\u1ee1i g\u1ea1t kh\u00f4ng th\u1ec3 \u0111\u01b0a m\u1ef1c v\u00e0o hai b\u00ean r\u00e3nh. M\u1ed9t nguy\u00ean nh\u00e2n kh\u00e1c l\u00e0 l\u01b0\u1ee1i g\u1ea1t b\u1ecb s\u1ee9t m\u1ebb. V\u00f9ng b\u1ecb s\u1ee9t m\u1ebb s\u1ebd kh\u00f4ng \u0111\u01b0a m\u1ef1c v\u00e0o \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong> \u0110\u1ea3m b\u1ea3o s\u1ed1 l\u1ea7n g\u1ea1t \u0111\u1ec1u nhau cho c\u1ea3 hai m\u1eb7t. Kh\u00f4ng tr\u1ed9n l\u1eabn m\u1ef1c c\u0169 v\u00e0 m\u1ef1c m\u1edbi. Ki\u1ec3m so\u00e1t d\u00f2ng \u0111i\u1ec7n m\u1ea1. Ki\u1ec3m tra l\u01b0\u1ee1i g\u1ea1t xem c\u00f3 v\u1ebft n\u1ee9t hay kh\u00f4ng.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">T\u00f3m t\u1eaft ng\u1eafn g\u1ecdn v\u1ec1 c\u00e1c b\u01b0\u1edbc ki\u1ec3m tra ch\u00ednh trong thi\u1ebft k\u1ebf v\u00e0 ch\u1ebf t\u1ea1o m\u1ea1ch in (FPC)<\/h1>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ki\u1ec3m tra \u0111\u1ed9 ch\u1ed3ng ch\u00e9o c\u1ee7a mi\u1ebfng \u0111\u1ec7m v\u00e0 \u0111\u1ed9 ch\u1ed3ng ch\u00e9o c\u1ee7a l\u1ed7 tr\u01b0\u1edbc khi thi\u1ebft l\u1eadp d\u1eef li\u1ec7u khoan.<\/li>\n\n\n\n<li>H\u00e3y s\u1eed d\u1ee5ng c\u00e1c l\u1edbp m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng v\u00e0 kh\u00f4ng n\u00ean l\u1ea1m d\u1ee5ng l\u1edbp Board \u0111\u1ec3 v\u1ebd \u0111\u01b0\u1eddng k\u1ebb v\u00e0 ch\u00fa th\u00edch.<\/li>\n\n\n\n<li>\u0110\u1eb7t v\u0103n b\u1ea3n in l\u1ee5a c\u00e1ch xa c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac. S\u1eed d\u1ee5ng k\u00edch th\u01b0\u1edbc ch\u1eef d\u1ec5 \u0111\u1ecdc.<\/li>\n\n\n\n<li>\u0110\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng c\u00e1c l\u1ed7 \u0111\u1ec7m m\u1ed9t m\u1eb7t ho\u1eb7c \u0111\u1eb7t k\u00edch th\u01b0\u1edbc l\u1ed7 v\u1ec1 0.<\/li>\n\n\n\n<li>Kh\u00f4ng n\u00ean v\u1ebd c\u00e1c mi\u1ebfng \u0111\u1ec7m d\u01b0\u1edbi d\u1ea1ng c\u00e1c kh\u1ed1i \u0111\u01b0\u1ee3c t\u00f4 \u0111\u1ea7y n\u1ebfu b\u1ea1n c\u1ea7n l\u1edbp ph\u1ee7 h\u00e0n \u0111\u00fang ti\u00eau chu\u1ea9n.<\/li>\n\n\n\n<li>H\u00e3y x\u00e1c \u0111\u1ecbnh r\u00f5 c\u00e1c v\u00f9ng gi\u1ea3m nhi\u1ec7t v\u00e0 c\u00e1c v\u00f9ng \u0111\u1ed5 \u0111\u1ed3ng. Tr\u00e1nh t\u00ecnh tr\u1ea1ng c\u00e1ch ly ngo\u00e0i \u00fd mu\u1ed1n.<\/li>\n\n\n\n<li>L\u1eadp b\u1ea3n v\u1ebd chi ti\u1ebft c\u1ea5u tr\u00fac l\u1edbp v\u00e0 th\u1ee9 t\u1ef1 l\u1eafp r\u00e1p cho nh\u00e0 th\u1ea7u thi c\u00f4ng.<\/li>\n\n\n\n<li>Tr\u00e1nh s\u1eed d\u1ee5ng qu\u00e1 nhi\u1ec1u v\u00f9ng t\u00f4 m\u00e0u ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng n\u00e9t t\u00f4 m\u00e0u qu\u00e1 m\u1ea3nh. Gi\u1eef cho k\u00edch th\u01b0\u1edbc d\u1eef li\u1ec7u \u1edf m\u1ee9c h\u1ee3p l\u00fd.<\/li>\n\n\n\n<li>Thi\u1ebft k\u1ebf c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac SMD \u0111\u1ee7 d\u00e0i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn khi ki\u1ec3m tra b\u1eb1ng \u0111\u1ea7u d\u00f2.<\/li>\n\n\n\n<li>\u0110\u1ea3m b\u1ea3o kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c m\u1eaft l\u01b0\u1edbi \u0111\u1ed3ng l\u1edbn \u1edf m\u1ee9c h\u1ee3p l\u00fd (\u2265 0,3 mm gi\u1eefa c\u00e1c c\u1ea1nh).<\/li>\n\n\n\n<li>Gi\u1eef kho\u1ea3ng c\u00e1ch t\u1ed1i thi\u1ec3u 0,2 mm gi\u1eefa c\u00e1c v\u00f9ng \u0111\u1ed3ng c\u00f3 di\u1ec7n t\u00edch l\u1edbn v\u00e0 m\u00e9p b\u1ea3ng m\u1ea1ch.<\/li>\n\n\n\n<li>H\u00e3y cung c\u1ea5p m\u1ed9t b\u1ea3n ph\u00e1c th\u1ea3o b\u1ea3ng m\u1ea1ch r\u00f5 r\u00e0ng. Kh\u00f4ng \u0111\u1eb7t nhi\u1ec1u b\u1ea3n ph\u00e1c th\u1ea3o kh\u00e1c nhau tr\u00ean c\u00e1c l\u1edbp kh\u00e1c nhau.<\/li>\n\n\n\n<li>\u0110i\u1ec1u ch\u1ec9nh m\u1eadt \u0111\u1ed9 m\u1eabu \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng m\u1ea1 kh\u00f4ng \u0111\u1ec1u.<\/li>\n\n\n\n<li>S\u1eed d\u1ee5ng l\u01b0\u1edbi trong c\u00e1c khu v\u1ef1c \u0111\u1ed5 \u0111\u1ed3ng di\u1ec7n t\u00edch l\u1edbn \u0111\u1ec3 tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn SMT.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>FPC Circuit Design \u2014 Common Problems I. Overlap of Pads II. Misuse of Graphic Layers III. Random Placement of Silkscreen [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4712,"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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Circuit Design \u2014 Common Problems I. 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