{"id":1712,"date":"2026-02-11T15:31:09","date_gmt":"2026-02-11T08:31:09","guid":{"rendered":"https:\/\/makipos.com\/?p=1712"},"modified":"2026-02-11T15:35:47","modified_gmt":"2026-02-11T08:35:47","slug":"xu-ly-kem-han","status":"publish","type":"post","link":"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/","title":{"rendered":"11 l\u01b0u \u00fd quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd kem h\u00e0n"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">In kem h\u00e0n l\u00e0 c\u00f4ng \u0111o\u1ea1n quan tr\u1ecdng trong quy tr\u00ecnh SMT, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a PCBA. Nhi\u1ec1u l\u1ed7i nh\u01b0 thi\u1ebfu thi\u1ebfc, c\u1ea7u thi\u1ebfc, ch\u1eadp m\u1ea1ch th\u01b0\u1eddng b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c ki\u1ec3m so\u00e1t ch\u01b0a t\u1ed1t b\u01b0\u1edbc in kem h\u00e0n. D\u1ef1a tr\u00ean kinh nghi\u1ec7m th\u1ef1c t\u1ebf t\u1ea1i nh\u00e0 m\u00e1y, Makipos t\u1ed5ng h\u1ee3p 11 l\u01b0u \u00fd k\u1ef9 thu\u1eadt khi in kem h\u00e0n SMT nh\u1eb1m \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng PCB trong s\u1ea3n xu\u1ea5t.<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#1_11_luu_y_ky_thuat_khi_in_kem_han_SMT\" >1. 11 l\u01b0u \u00fd k\u1ef9 thu\u1eadt khi in kem h\u00e0n SMT<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#11_Toc_do_quet\" >1.1. T\u1ed1c \u0111\u1ed9 qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#12_Luc_dao_quet\" >1.2. L\u1ef1c dao qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#13_Goc_quet\" >1.3. G\u00f3c qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#14_Khoang_cach_giua_stencil_va_PCB\" >1.4. Kho\u1ea3ng c\u00e1ch gi\u1eefa stencil v\u00e0 PCB\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#15_Toc_do_nhac_stencil_sau_quet\" >1.5. T\u1ed1c \u0111\u1ed9 nh\u1ea5c stencil sau qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#16_Kiem_soat_ve_sinh_stencil\" >1.6. Ki\u1ec3m so\u00e1t v\u1ec7 sinh stencil<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#17_Tinh_trang_stencil_va_dao_quet\" >1.7. T\u00ecnh tr\u1ea1ng stencil v\u00e0 dao qu\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#18_Chan_chong_cong_PCB\" >1.8. Ch\u00e2n ch\u1ed1ng cong PCB<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#19_Vung_quet_va_vi_tri_lo_mo_stencil\" >1.9. V\u00f9ng qu\u00e9t v\u00e0 v\u1ecb tr\u00ed l\u1ed7 m\u1edf stencil<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#110_Xu_ly_kem_han\" >1.10. X\u1eed l\u00fd kem h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#111_Kiem_tra_sau_in\" >1.11. Ki\u1ec3m tra sau in<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#2_Vai_tro_cua_in_kem_han_trong_chat_luong_SMT\" >2. Vai tr\u00f2 c\u1ee7a in kem h\u00e0n trong ch\u1ea5t l\u01b0\u1ee3ng SMT<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#3_Vi_sao_can_kiem_soat_chat_che_qua_trinh_in_kem_han\" >3. V\u00ec sao c\u1ea7n ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd qu\u00e1 tr\u00ecnh in kem h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/makipos.com\/vi\/xu-ly-kem-han\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_11_luu_y_ky_thuat_khi_in_kem_han_SMT\"><\/span><strong>1. 11 l\u01b0u \u00fd k\u1ef9 thu\u1eadt khi in kem h\u00e0n SMT<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"11_Toc_do_quet\"><\/span><strong>1.1. T\u1ed1c \u0111\u1ed9 qu\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">T\u1ed1c \u0111\u1ed9 qu\u00e9t c\u1ee7a dao quy\u1ebft \u0111\u1ecbnh kem h\u00e0n c\u00f3 \u0111\u1ee7 th\u1eddi gian \u0111i\u1ec1n \u0111\u1ea7y l\u1ed7 stencil hay kh\u00f4ng. N\u1ebfu qu\u00e9t qu\u00e1 nhanh, kem h\u00e0n kh\u00f4ng k\u1ecbp xu\u1ed1ng pad, d\u1eabn \u0111\u1ebfn thi\u1ebfu thi\u1ebfc, c\u00f2n qu\u00e9t qu\u00e1 ch\u1eadm th\u00ec l\u01b0\u1ee3ng thi\u1ebfc d\u01b0 th\u1eeba c\u00f3 th\u1ec3 t\u1ea1o c\u1ea7u ho\u1eb7c ch\u1eadp m\u1ea1ch.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">V\u00ec v\u1eady, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i kem h\u00e0n, \u0111\u1ed9 d\u00e0y stencil v\u00e0 m\u1eadt \u0111\u1ed9 linh ki\u1ec7n l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng in \u1ed5n \u0111\u1ecbnh.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"12_Luc_dao_quet\"><\/span><strong>1.2. L\u1ef1c dao qu\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">L\u1ef1c \u00e9p c\u1ee7a dao \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c kem h\u00e0n \u0111\u01b0\u1ee3c \u00e9p \u0111\u1ec1u qua stencil. L\u1ef1c qu\u00e1 m\u1ea1nh c\u00f3 th\u1ec3 l\u00e0m m\u00f2n dao v\u00e0 bi\u1ebfn d\u1ea1ng stencil, c\u00f2n l\u1ef1c qu\u00e1 y\u1ebfu s\u1ebd khi\u1ebfn kem h\u00e0n kh\u00f4ng ph\u1ee7 \u0111\u1ee7.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Th\u00f4ng th\u01b0\u1eddng, c\u00e1c k\u1ef9 s\u01b0 b\u1eaft \u0111\u1ea7u v\u1edbi l\u1ef1c v\u1eeba \u0111\u1ee7, quan s\u00e1t k\u1ebft qu\u1ea3 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh d\u1ea7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng thi\u1ebfc \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 PCB.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"13_Goc_quet\"><\/span><strong>1.3. G\u00f3c qu\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">G\u00f3c qu\u00e9t \u0111\u1ecbnh h\u01b0\u1edbng c\u00e1ch kem h\u00e0n ti\u1ebfp x\u00fac v\u1edbi b\u1ec1 m\u1eb7t pad. G\u00f3c qu\u00e1 cao l\u00e0m gi\u1ea3m l\u1ef1c \u00e9p v\u00e0 d\u1ec5 thi\u1ebfu thi\u1ebfc, trong khi g\u00f3c qu\u00e1 th\u1ea5p l\u1ea1i c\u00f3 th\u1ec3 g\u00e2y d\u01b0 thi\u1ebfc v\u00e0 c\u1ea7u m\u1ea1ch.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Trong s\u1ea3n xu\u1ea5t, g\u00f3c dao ph\u1ed5 bi\u1ebfn t\u1eeb 45\u00b0 \u0111\u1ebfn 65\u00b0, v\u1edbi gi\u00e1 tr\u1ecb kho\u1ea3ng 55\u00b0 l\u00e0 \u0111i\u1ec3m c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 ph\u1ee7 v\u00e0 h\u1ea1n ch\u1ebf c\u1ea7u thi\u1ebfc.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"14_Khoang_cach_giua_stencil_va_PCB\"><\/span><strong>1.4. Kho\u1ea3ng c\u00e1ch gi\u1eefa stencil v\u00e0 PCB\u00a0<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Kho\u1ea3ng c\u00e1ch gi\u1eefa stencil v\u00e0 PCB c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c nh\u1ecf nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kem h\u00e0n \u0111\u01b0\u1ee3c in \u0111\u1ec1u theo thi\u1ebft k\u1ebf. Khi PCB ho\u1eb7c stencil b\u1ecb cong, v\u00f5ng, kho\u1ea3ng c\u00e1ch n\u00e0y s\u1ebd t\u0103ng l\u00ean, d\u1eabn \u0111\u1ebfn in thi\u1ebfc kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, \u0111\u1eb7c bi\u1ec7t t\u1ea1i khu v\u1ef1c trung t\u00e2m b\u1ea3ng m\u1ea1ch. Vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u1ed9 ph\u1eb3ng c\u1ee7a PCB v\u00e0 t\u00ecnh tr\u1ea1ng stencil l\u00e0 y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 b\u1ecf qua.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"15_Toc_do_nhac_stencil_sau_quet\"><\/span><strong>1.5. T\u1ed1c \u0111\u1ed9 nh\u1ea5c stencil sau qu\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Sau khi qu\u00e9t xong, t\u1ed1c \u0111\u1ed9 nh\u1ea5c stencil \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh d\u1ea1ng kem h\u00e0n tr\u00ean pad. Nh\u1ea5c qu\u00e1 nhanh c\u00f3 th\u1ec3 l\u00e0m kem h\u00e0n b\u1ecb k\u00e9o, t\u1ea1o \u0111\u1ec9nh nh\u1ecdn ho\u1eb7c bi\u1ebfn d\u1ea1ng. Nh\u1ea5c qu\u00e1 ch\u1eadm tuy gi\u00fap \u1ed5n \u0111\u1ecbnh h\u00ecnh d\u1ea1ng thi\u1ebfc nh\u01b0ng l\u1ea1i l\u00e0m gi\u1ea3m n\u0103ng su\u1ea5t v\u00e0 t\u0103ng cycle time. T\u1ed1c \u0111\u1ed9 nh\u1ea5c stencil c\u1ea7n \u0111\u01b0\u1ee3c c\u00e2n \u0111\u1ed1i gi\u1eefa ch\u1ea5t l\u01b0\u1ee3ng in v\u00e0 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"16_Kiem_soat_ve_sinh_stencil\"><\/span><strong>1.6. Ki\u1ec3m so\u00e1t v\u1ec7 sinh stencil<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Trong qu\u00e1 tr\u00ecnh in, kem h\u00e0n c\u00f3 th\u1ec3 kh\u00f4 ho\u1eb7c b\u00e1m c\u1eb7n v\u00e0o l\u1ed7 stencil, l\u00e0m thay \u0111\u1ed5i l\u01b0\u1ee3ng thi\u1ebfc in ra. V\u00ec v\u1eady, stencil c\u1ea7n \u0111\u01b0\u1ee3c v\u1ec7 sinh \u0111\u1ecbnh k\u1ef3 tr\u01b0\u1edbc, trong v\u00e0 sau qu\u00e1 tr\u00ecnh in b\u1eb1ng IPA ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p v\u1ec7 sinh kh\u00f4 ph\u00f9 h\u1ee3p. Vi\u1ec7c v\u1ec7 sinh \u0111\u00fang c\u00e1ch gi\u00fap duy tr\u00ec bi\u00ean d\u1ea1ng l\u1ed7 stencil v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a qu\u00e1 tr\u00ecnh in kem h\u00e0n.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"17_Tinh_trang_stencil_va_dao_quet\"><\/span><strong>1.7. T\u00ecnh tr\u1ea1ng stencil v\u00e0 dao qu\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Stencil v\u00e0 dao qu\u00e9t l\u00e0 c\u00e1c v\u1eadt t\u01b0 ti\u00eau hao, ch\u1ea5t l\u01b0\u1ee3ng s\u1ebd gi\u1ea3m d\u1ea7n theo s\u1ed1 l\u1ea7n s\u1eed d\u1ee5ng. N\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t t\u1ed1t t\u00ecnh tr\u1ea1ng m\u00e0i m\u00f2n ho\u1eb7c bi\u1ebfn d\u1ea1ng, ch\u1ea5t l\u01b0\u1ee3ng in kem h\u00e0n s\u1ebd kh\u00f4ng c\u00f2n \u1ed5n \u0111\u1ecbnh d\u00f9 th\u00f4ng s\u1ed1 m\u00e1y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t \u0111\u00fang. Do \u0111\u00f3, c\u1ea7n ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 v\u00e0 thay th\u1ebf khi v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n cho ph\u00e9p.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"18_Chan_chong_cong_PCB\"><\/span><strong>1.8. Ch\u00e2n ch\u1ed1ng cong PCB<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi c\u00e1c PCB c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, ph\u1ea7n trung t\u00e2m r\u1ea5t d\u1ec5 b\u1ecb v\u00f5ng trong qu\u00e1 tr\u00ecnh in. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ed1ng \u0111\u1ee1 b\u1eb1ng support pin ph\u00f9 h\u1ee3p, kem h\u00e0n t\u1ea1i khu v\u1ef1c n\u00e0y th\u01b0\u1eddng b\u1ecb thi\u1ebfu do stencil kh\u00f4ng ti\u1ebfp x\u00fac \u0111\u1ec1u v\u1edbi b\u1ec1 m\u1eb7t PCB. Vi\u1ec7c b\u1ed1 tr\u00ed support pin h\u1ee3p l\u00fd gi\u00fap gi\u1eef PCB ph\u1eb3ng v\u00e0 \u0111\u1ea3m b\u1ea3o l\u01b0\u1ee3ng thi\u1ebfc in \u0111\u1ed3ng \u0111\u1ec1u.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"19_Vung_quet_va_vi_tri_lo_mo_stencil\"><\/span><strong>1.9. V\u00f9ng qu\u00e9t v\u00e0 v\u1ecb tr\u00ed l\u1ed7 m\u1edf stencil<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">V\u1ecb tr\u00ed l\u1ed7 m\u1edf stencil c\u1ea7n n\u1eb1m trong v\u00f9ng qu\u00e9t hi\u1ec7u qu\u1ea3 c\u1ee7a dao qu\u00e9t. Khi l\u1ed7 m\u1edf qu\u00e1 l\u1ec7ch so v\u1edbi t\u00e2m qu\u00e9t, l\u01b0\u1ee3ng thi\u1ebfc sau in c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, th\u1eadm ch\u00ed kh\u00f4ng in \u0111\u01b0\u1ee3c. Do \u0111\u00f3, thi\u1ebft k\u1ebf stencil v\u00e0 c\u00e0i \u0111\u1eb7t v\u00f9ng qu\u00e9t c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t \u0111\u1ed3ng th\u1eddi ngay t\u1eeb giai \u0111o\u1ea1n chu\u1ea9n b\u1ecb s\u1ea3n xu\u1ea5t.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"110_Xu_ly_kem_han\"><\/span><strong>1.10. X\u1eed l\u00fd kem h\u00e0n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Kem h\u00e0n c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o s\u1ea3n xu\u1ea5t, bao g\u1ed3m ki\u1ec3m so\u00e1t lo\u1ea1i kem h\u00e0n, th\u1eddi gian r\u00e3 \u0111\u00f4ng, th\u1eddi gian v\u00e0 c\u00e1ch khu\u1ea5y tr\u1ed9n \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ed9 nh\u1edbt ti\u00eau chu\u1ea9n. Kem h\u00e0n qu\u00e1 r\u1eafn ho\u1eb7c qu\u00e1 l\u1ecfng \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng x\u1ea5u \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng in v\u00e0 h\u00e0n. Nhi\u1ec1u d\u00e2y chuy\u1ec1n hi\u1ec7n nay c\u00f2n s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t kem h\u00e0n \u0111\u1ec3 duy tr\u00ec ph\u1ea9m ch\u1ea5t trong su\u1ed1t qu\u00e1 tr\u00ecnh in k\u00e9o d\u00e0i.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"111_Kiem_tra_sau_in\"><\/span><strong>1.11. Ki\u1ec3m tra sau in<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Ki\u1ec3m tra kem h\u00e0n sau in b\u1eb1ng h\u1ec7 th\u1ed1ng 2D ho\u1eb7c 3D gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c sai l\u1ec7ch v\u1ec1 l\u01b0\u1ee3ng v\u00e0 h\u00ecnh d\u1ea1ng thi\u1ebfc. \u0110\u1eb7c bi\u1ec7t \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u s\u1ea3n xu\u1ea5t, vi\u1ec7c ki\u1ec3m tra li\u00ean t\u1ee5c gi\u00fap \u0111\u00e1nh gi\u00e1 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a th\u00f4ng s\u1ed1 setup tr\u01b0\u1edbc khi chuy\u1ec3n sang s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t, t\u1eeb \u0111\u00f3 gi\u1ea3m r\u1ee7i ro l\u1ed7i h\u00e0n \u1edf c\u00e1c c\u00f4ng \u0111o\u1ea1n sau.<\/span><\/p>\n<figure id=\"attachment_1718\" aria-describedby=\"caption-attachment-1718\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1718\" src=\"https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2.webp\" alt=\"C\u00e1c l\u01b0u \u00fd khi x\u1eed l\u00fd kem h\u00e0n\" width=\"1200\" height=\"650\" srcset=\"https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2.webp 1200w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-300x163.webp 300w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1024x555.webp 1024w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-768x416.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-1718\" class=\"wp-caption-text\">C\u00e1c l\u01b0u \u00fd khi x\u1eed l\u00fd kem h\u00e0n<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"2_Vai_tro_cua_in_kem_han_trong_chat_luong_SMT\"><\/span><strong>2. Vai tr\u00f2 c\u1ee7a in kem h\u00e0n trong ch\u1ea5t l\u01b0\u1ee3ng SMT<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In kem h\u00e0n l\u00e0 b\u01b0\u1edbc n\u1ec1n t\u1ea3ng trong quy tr\u00ecnh SMT v\u00ec n\u00f3 quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp l\u01b0\u1ee3ng thi\u1ebfc ban \u0111\u1ea7u tr\u00ean m\u1ed7i pad. Khi b\u01b0\u1edbc n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t t\u1ed1t, c\u00e1c c\u00f4ng \u0111o\u1ea1n ph\u00eda sau r\u1ea5t kh\u00f3 b\u00f9 l\u1ea1i sai l\u1ec7ch.<\/span><\/p>\n<p><b>C\u00f4ng \u0111o\u1ea1n in kem h\u00e0n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u01b0\u1ee3ng thi\u1ebfc tr\u00ean pad v\u00e0 \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u gi\u1eefa c\u00e1c v\u1ecb tr\u00ed.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n sau reflow.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ed9 ch\u00ednh x\u00e1c khi g\u1eafn linh ki\u1ec7n.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u1ef7 l\u1ec7 l\u1ed7i nh\u01b0 thi\u1ebfu thi\u1ebfc, c\u1ea7u thi\u1ebfc, ch\u1eadp m\u1ea1ch, l\u1ec7ch linh ki\u1ec7n.<\/span><\/li>\n<\/ul>\n<p><b>Ki\u1ec3m so\u00e1t t\u1ed1t in kem h\u00e0n gi\u00fap:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u1ed4n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n tr\u00ean to\u00e0n b\u1ed9 PCB.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gi\u1ea3m l\u1ed7i l\u1eb7p l\u1ea1i trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u1ee7a PCBA, \u0111\u1eb7c bi\u1ec7t v\u1edbi m\u1ea1ch m\u1eadt \u0111\u1ed9 cao.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">V\u00ec v\u1eady, in kem h\u00e0n kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t b\u01b0\u1edbc k\u1ef9 thu\u1eadt, m\u00e0 l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a to\u00e0n b\u1ed9 quy tr\u00ecnh SMT.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Vi_sao_can_kiem_soat_chat_che_qua_trinh_in_kem_han\"><\/span><strong>3. V\u00ec sao c\u1ea7n ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd qu\u00e1 tr\u00ecnh in kem h\u00e0n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_1719\" aria-describedby=\"caption-attachment-1719\" style=\"width: 1200px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1719\" src=\"https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1.webp\" alt=\"V\u00ec sao c\u1ea7n x\u1eed l\u00fd kem h\u00e0n\" width=\"1200\" height=\"650\" srcset=\"https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1.webp 1200w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1-300x163.webp 300w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1-1024x555.webp 1024w, https:\/\/makipos.com\/wp-content\/uploads\/2026\/02\/xu-ly-kem-han-2-1-768x416.webp 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><figcaption id=\"caption-attachment-1719\" class=\"wp-caption-text\">V\u00ec sao c\u1ea7n x\u1eed l\u00fd kem h\u00e0n<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Trong s\u1ea3n xu\u1ea5t SMT, c\u00f4ng \u0111o\u1ea1n in kem h\u00e0n ch\u1ecbu \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1eeb nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 thi\u1ebft b\u1ecb, v\u1eadt t\u01b0 v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng. N\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd, ch\u1ea5t l\u01b0\u1ee3ng in kem h\u00e0n r\u1ea5t d\u1ec5 m\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 g\u00e2y l\u1ed7i h\u00e0ng lo\u1ea1t.<\/span><\/p>\n<p><b>Qu\u00e1 tr\u00ecnh in kem h\u00e0n c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00ec:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sai l\u1ec7ch nh\u1ecf \u1edf th\u00f4ng s\u1ed1 in c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i tr\u00ean to\u00e0n b\u1ed9 b\u1ea3ng m\u1ea1ch.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1ed7i ph\u00e1t sinh \u1edf b\u01b0\u1edbc n\u00e0y kh\u00f3 kh\u1eafc ph\u1ee5c \u1edf c\u00e1c c\u00f4ng \u0111o\u1ea1n ph\u00eda sau.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Kem h\u00e0n v\u00e0 stencil l\u00e0 v\u1eadt t\u01b0 nh\u1ea1y c\u1ea3m, d\u1ec5 thay \u0111\u1ed5i theo th\u1eddi gian s\u1eed d\u1ee5ng.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">PCB b\u1ecb cong, v\u00f5ng ho\u1eb7c sai l\u1ec7ch setup d\u1ec5 g\u00e2y thi\u1ebfu thi\u1ebfc c\u1ee5c b\u1ed9.<\/span><\/li>\n<\/ul>\n<p><b>Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ed1t qu\u00e1 tr\u00ecnh in kem h\u00e0n gi\u00fap:<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a d\u00e2y chuy\u1ec1n SMT.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gi\u1ea3m r\u1ee7i ro l\u1ed7i h\u00e0ng lo\u1ea1t trong s\u1ea3n xu\u1ea5t.<\/span><span style=\"font-weight: 400;\"><br \/>\n<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng PCBA nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">V\u00ec v\u1eady, in kem h\u00e0n c\u1ea7n \u0111\u01b0\u1ee3c xem l\u00e0 c\u00f4ng \u0111o\u1ea1n ki\u1ec3m so\u00e1t tr\u1ecdng y\u1ebfu, kh\u00f4ng ch\u1ec9 l\u00e0 b\u01b0\u1edbc chu\u1ea9n b\u1ecb tr\u01b0\u1edbc khi g\u1eafn linh ki\u1ec7n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span><strong>K\u1ebft lu\u1eadn<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">In kem h\u00e0n l\u00e0 c\u00f4ng \u0111o\u1ea1n n\u1ec1n t\u1ea3ng quy\u1ebft \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng to\u00e0n b\u1ed9 quy tr\u00ecnh SMT. Vi\u1ec7c ki\u1ec3m so\u00e1t t\u1ed1t c\u00e1c th\u00f4ng s\u1ed1 in v\u00e0 x\u1eed l\u00fd kem h\u00e0n gi\u00fap gi\u1ea3m l\u1ed7i, \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng m\u1ed1i h\u00e0n v\u00e0 h\u1ea1n ch\u1ebf r\u1ee7i ro trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t. T\u1ea1i <\/span><b>Makipos<\/b><span style=\"font-weight: 400;\">, c\u00e1c l\u01b0u \u00fd k\u1ef9 thu\u1eadt trong qu\u00e1 tr\u00ecnh in kem h\u00e0n SMT \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng xuy\u00ean su\u1ed1t trong s\u1ea3n xu\u1ea5t nh\u1eb1m \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng PCBA \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt c\u1ee7a t\u1eebng d\u1ef1 \u00e1n.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In kem h\u00e0n l\u00e0 c\u00f4ng \u0111o\u1ea1n quan tr\u1ecdng trong quy tr\u00ecnh SMT, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng h\u00e0n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a PCBA. Nhi\u1ec1u l\u1ed7i nh\u01b0 thi\u1ebfu thi\u1ebfc, c\u1ea7u thi\u1ebfc, ch\u1eadp m\u1ea1ch th\u01b0\u1eddng b\u1eaft ngu\u1ed3n t\u1eeb vi\u1ec7c ki\u1ec3m so\u00e1t ch\u01b0a t\u1ed1t b\u01b0\u1edbc in kem h\u00e0n. D\u1ef1a tr\u00ean kinh nghi\u1ec7m th\u1ef1c t\u1ebf t\u1ea1i [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1713,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-nganh"],"acf":[],"_links":{"self":[{"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/posts\/1712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/comments?post=1712"}],"version-history":[{"count":4,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/posts\/1712\/revisions"}],"predecessor-version":[{"id":1720,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/posts\/1712\/revisions\/1720"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/media\/1713"}],"wp:attachment":[{"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/media?parent=1712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/categories?post=1712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/makipos.com\/wp-json\/wp\/v2\/tags?post=1712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}