{"id":10257,"date":"2022-07-06T08:24:00","date_gmt":"2022-07-06T00:24:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=10257"},"modified":"2024-04-13T22:59:56","modified_gmt":"2024-04-13T14:59:56","slug":"stencil-thickness-aperture","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2022\/07\/stencil-thickness-aperture\/","title":{"rendered":"\u92fc\u677f\u539a\u5ea6\u53ca\u958b\u5b54(\u958b\u6cd5\/\u5f62\u72c0&#8230;\u7b49)\u5de5\u85dd\u662f\u5982\u4f55\u6c7a\u5b9a\u7684\uff1f\u4ec0\u9ebc\u662f\u9632\u932b\u73e0\u958b\u6cd5\uff1f"},"content":{"rendered":"<p align=\"center\"><img decoding=\"async\" title=\"\u92fc\u677f\u96f6\u4ef6\u4f7f\u7528\u539a\u5ea6\u53ca\u958b\u5b54\u65b9\u5f0f(\u958b\u6cd5\/\u5f62\u72c0...\u7b49)\u4e4b\u5de5\u85dd\" alt=\"\u92fc\u677f\u96f6\u4ef6\u4f7f\u7528\u539a\u5ea6\u53ca\u958b\u5b54\u65b9\u5f0f(\u958b\u6cd5\/\u5f62\u72c0...\u7b49)\u4e4b\u5de5\u85dd\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2022\/07\/chip-components-stencil-aperture00.png\" \/><\/p>\n<p align=\"justify\"><font size=\"4\">\u6709\u7db2\u53cb\u63d0\u554f\uff1a\u300e\u92fc\u677f\/\u92fc\u7db2(stencil)\u7684\u539a\u5ea6\u662f\u5982\u4f55\u6c7a\u5b9a\u7684\u5462\uff1f\u92fc\u677f\u7684\u958b\u5b54(aperture)\u65b9\u5f0f(\u958b\u6cd5\/\u5f62\u72c0&#8230;\u7b49)\u5de5\u85dd\u6709\u4f55\u8b1b\u7a76\uff1f\u300f <\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u92fc\u677f\u7684\u539a\u5ea6\u57fa\u672c\u4e0a\u53d6\u6c7a\u65bc\u710a\u63a5\u96f6\u4ef6\u6642\u6240\u9700\u8981\u7684<a title=\"\u4ecb\u7d39\u4e26\u8a8d\u8b58\u3010\u932b\u818f(solder paste)\u3011\u7684\u57fa\u672c\u77e5\u8b58(\u542b\u52a9\u710a\u5291)\" href=\"\/\/m.letratesoro.com\/2013\/04\/solder-paste\/\" rel=\"noopener\" target=\"_blank\">\u932b\u818f<\/a>\u91cf\uff0c\u92fc\u677f\u8d8a\u8584\uff0c\u901a\u5e38\u4e5f\u610f\u5473\u8457\u5370\u5237\u51fa\u4f86\u7684\u932b\u818f\u91cf\u8d8a\u5c11\u3002\u800c\u4e00\u500b\u710a\u9ede\u9700\u8981\u591a\u5c11\u932b\u818f\u91cf\u5247\u8981\u770b\u96fb\u8def\u677f\u4e0a\u7684\u96f6\u4ef6\u800c\u5b9a\uff0c\u901a\u5e38\u5c31\u662f\u770b\u677f\u5b50\u4e0a\u90a3\u4e9b\u5c0d\u710a\u932b\u91cf\u6bd4\u8f03\u654f\u611f\u7684\u96fb\u5b50\u96f6\u4ef6\uff0c\u6bd4\u5982\u932b\u7403\u9593\u8ddd\u6700\u5c0f\u7684BGA\u4ee5\u53ca\u7d30\u9593\u8ddd\u96f6\u4ef6\u3002\u518d\u4f86\u5c31\u662f\u710a\u9ede\u8d8a\u5c0f\u7684\u96f6\u4ef6\uff0c\u5176\u5c0d\u65bc\u932b\u818f\u91cf\u7cbe\u6e96\u5ea6\u7684\u8981\u6c42\u4e5f\u5c31\u8d8a\u9ad8\u3002\u7576\u7136\uff0c\u6700\u7d42\u9084\u5f97\u53d6\u6c7a\u65bc\u710a\u63a5\u5f8c\u7684\u54c1\u8cea\u72c0\u6cc1\u3002<\/font><\/p>\n<p><!--more--><\/p>\n<h2><font style=\"font-weight: bold;\" color=\"#0000ff\" size=\"5\">\u6c7a\u5b9a\u92fc\u677f\u539a\u5ea6\u7684\u56e0\u7d20<\/font><\/h2>\n<p align=\"justify\"><font size=\"4\">\u6c7a\u5b9a\u92fc\u677f\u7684\u539a\u5ea6\u6642\u8981\u512a\u5148\u8003\u616e\u4e0a\u8ff0\u90a3\u4e9b\u7d30\u5c0f\u9593\u8ddd\u96f6\u4ef6\u7684\u7528\u932b\u91cf\uff0c\u4ee50402\u96f6\u4ef6\u4f86\u8aaa\u4e00\u822c\u6703\u4f7f\u75280.12mm\u7684\u92fc\u677f\u539a\u5ea6\uff0c\u800c0201\u96f6\u4ef6\u5247\u5927\u591a\u6703\u9078\u75280.10mm\u539a\u5ea6\u7684\u92fc\u677f\uff0c\u96a8\u8457\u96f6\u4ef6\u8d8a\u4f86\u8d8a\u5c0f\u4e14\u540c\u4e00\u677f\u5b50\u4e0a\u7d30\u5c0f\u96f6\u4ef6\u6578\u91cf\u589e\u52a0\uff0c\u6709\u4eba\u958b\u59cb\u4f7f\u75280.08mm\u539a\u5ea6\u7684\u92fc\u677f\uff0c\u7136\u5f8c\u518d\u91dd\u5c0d\u90a3\u4e9b\u9700\u8981\u8f03\u591a\u932b\u818f\u91cf\u7684\u96f6\u4ef6\u53bb\u505a<a title=\"Step-up &amp; Step-down stencil(\u968e\u68af\u5f0f\u92fc\u677f\u5c40\u90e8\u52a0\u539a\/\u6253\u8584)\" href=\"\/\/m.letratesoro.com\/2010\/07\/step-up-stencil\/\" rel=\"noopener\" target=\"_blank\">\u5c40\u90e8\u52a0\u539a\u8655\u7406\u7684\u968e\u68af\u92fc\u677f(step-down stencil)<\/a>\uff0c\u53ea\u662f\u5c40\u90e8\u52a0\u539a\u92fc\u677f\u662f\u6709\u5176\u539a\u5ea6\u4fb7\u9650\u7684\uff0c\u4e00\u822c\u4f86\u8aaa\u53ef\u4ee5\u5f80\u4e0a\u52a0\u500b0.01~0.08mm\uff0c\u800c\u4e14\u9084\u5f97\u770b\u5c40\u90e8\u52a0\u539a\u5340\u57df\u7684\u9644\u8fd1\u6709\u7121\u7d30\u5c0f\u96f6\u4ef6\uff0c\u56e0\u70ba\u522e\u5200\u5728\u522e\u904e\u5c40\u90e8\u52a0\u539a\u7684\u5340\u57df\u6642\uff0c\u6703\u88ab\u7a81\u7136\u9802\u9ad8\u9020\u6210\u5c40\u90e8\u8b8a\u5f62\uff0c\u5982\u679c\u5728\u92fc\u677f\u5c40\u90e8\u52a0\u539a\u5340\u57df\u7684\u908a\u7de3\u6709\u958b\u5b54\uff0c\u5c31\u6703\u9020\u6210\u932b\u818f\u91cf\u5370\u5237\u4e0d\u5747\u6216\u932b\u818f\u91cf\u904e\u591a\u7684\u73fe\u8c61\u51fa\u73fe\u3002<\/font><\/p>\n<p align=\"center\"><font size=\"4\"><img decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/Step_up_stencil.jpg\" \/><\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u53e6\u5916\uff0c\u539a\u5ea6\u8d8a\u8584\u7684\u92fc\u677f\uff0c\u932b\u818f\u843d\u932b\u91cf\u7684\u63a7\u5236\u5c31\u8d8a\u4e0d\u7a69\u5b9a\uff0c\u4e5f\u5c31\u662f\u8aaa\u5370\u5237\u5728\u96fb\u8def\u677f\u7684\u932b\u818f\u91cf\u4e4b\u7cbe\u6e96\u5ea6\u6703\u8b8a\u5dee\uff0c\u9019\u662f\u56e0\u70ba\u92fc\u677f\u958b\u5b54\u7684\u5782\u76f4\u9762\u4e26\u4e0d\u5982\u60f3\u50cf\u4e2d\u7684\u5149\u6ed1\uff0c\u4f9d\u7167\u4e0d\u540c\u7684\u92fc\u677f\u88fd\u4f5c\u5de5\u85dd\uff0c\u5982Etching, Laser, Coating, Electroform\u7b49\uff0c\u6703\u51fa\u73fe\u4e0d\u540c\u7684\u8868\u9762\u7c97\u7cd9\u5ea6\uff0c\u800c\u8868\u9762\u8d8a\u7c97\u7cd9\u7684\u958b\u5b54\uff0c\u5247\u8d8a\u5bb9\u6613\u767c\u751f\u932b\u818f\u6b98\u7559\u5728\u5782\u76f4\u9762\u7684\u554f\u984c\uff0c\u4e00\u65e6\u767c\u751f\u5c31\u6703\u9020\u6210\u5f8c\u7e8c\u5370\u5237\u7684\u932b\u818f\u91cf\u77ed\u7f3a\uff0c\u5176\u4ed6\u5982\u522e\u5200\u58d3\u529b\u3001\u901f\u5ea6\u3001\u89d2\u5ea6\u53ca\u932b\u818f\u865f\u6578(\u932b\u7c89\u9846\u7c92\u5927\u5c0f)\u7b49\u4e5f\u90fd\u6703\u5f71\u97ff\u5230\u932b\u818f\u7684\u5370\u5237\u54c1\u8cea\u3002<\/font><\/p>\n<h2><font style=\"font-weight: bold;\" color=\"#0000ff\" size=\"5\">\u92fc\u677f\u958b\u5b54\u7684\u5927\u5c0f\u53ca\u5f62\u72c0<\/font><\/h2>\n<p align=\"justify\"><font size=\"4\">\u81f3\u65bc\uff0c\u92fc\u677f\u958b\u5b54\u7684\u5927\u5c0f\u53ca\u5f62\u72c0\uff0c\u539f\u5247\u4e0a\u662f\u4f9d\u7167\u96fb\u8def\u677f\u4e0a\u710a\u588a1:1\u7684\u5927\u5c0f\u53ca\u5f62\u72c0\u4f86\u958b\u7684\uff0c\u7136\u5f8c\u518d\u91dd\u5c0d\u4e00\u4e9b\u6bd4\u8f03\u7279\u6b8a\u7684\u96f6\u4ef6\u4f86\u505a\u958b\u5b54\u7684\u5916\u64f4\u3001\u7e2e\u6e1b\u6216\u662f\u4fee\u6539\u5f62\u72c0\u4ee5\u7b26\u5408\u8a72\u96f6\u4ef6\u7684\u710a\u932b\u9700\u8981\uff0c\u6709\u4e9b\u96f6\u4ef6\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u5230\u968e\u68af\u92fc\u677f\u4f86\u5c40\u90e8\u589e\u52a0\u6216\u6e1b\u5c11\u932b\u818f\u91cf\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u5927\u5bb6\u53ef\u4ee5\u5148\u53c3\u95b1IPC-7525 Stencil-Design-Guidelines(\u92fc\u677f\u8a2d\u8a08\u6307\u5357)\u6587\u4ef6\uff0c\u9019\u4efd\u6587\u4ef6\u4e2d\u63d0\u5230\uff1a<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">1. \u70ba\u4e86\u78ba\u4fdd\u932b\u818f\u53ef\u4ee5\u7d93\u7531\u92fc\u677f\u958b\u5b54\u88ab\u5b8c\u7f8e\u7684\u8f49\u5370\u5230\u96fb\u8def\u677f\u4e0a\uff0c\u8a72\u6587\u4ef6\u8981\u6c42\u92fc\u677f\u7684\u958b\u5b54\u53ca\u539a\u5ea6\u4e0a\u5fc5\u9808\u8981\u6709\u4e00\u5b9a\u7684\u6bd4\u7387\uff0c\u4ee5\u907f\u514d\u932b\u818f\u56e0\u70ba\u8868\u9762\u5f35\u529b\u800c\u7121\u6cd5\u5b8c\u5168\u843d\u932b\u3002<\/font><\/p>\n<p align=\"center\"><font size=\"4\"><img decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2022\/07\/stencil-aspect-ratio-area-ratio.png\" \/><\/font><\/p>\n<ul>\n<ul>\n<li><font size=\"4\">Aspect Ratio (\u5bec\u539a\u6bd4\u3001\u7e31\u6a6b\u6bd4) = Width of Aperture \/ Thickness of Stencil Foil = W\/T &gt; 1.5<\/font><br \/>\n<table cellspacing=\"0\" cellpadding=\"2\" border=\"1\">\n<tbody>\n<tr>\n<td valign=\"top\"><font size=\"3\" width=\"200\">pitch (mm)<\/font><\/td>\n<td valign=\"middle\" width=\"70\" aligh=\"center\">\n<p align=\"center\"><font size=\"3\">1.27<\/font><\/p>\n<\/td>\n<td valign=\"top\" width=\"70\">\n<p align=\"center\"><font size=\"3\">0.80<\/font><\/p>\n<\/td>\n<td valign=\"top\" width=\"70\">\n<p align=\"center\"><font size=\"3\">0.55<\/font><\/p>\n<\/td>\n<td valign=\"top\" width=\"70\">\n<p align=\"center\"><font size=\"3\">0.40<\/font><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\"><font size=\"3\">pad width (mm)<\/font><\/td>\n<td valign=\"top\">\n<p align=\"center\"><font size=\"3\">0.635<\/font><\/p>\n<\/td>\n<td valign=\"top\">\n<p align=\"center\"><font size=\"3\">0.40<\/font><\/p>\n<\/td>\n<td valign=\"top\">\n<p align=\"center\"><font size=\"3\">0.275<\/font><\/p>\n<\/td>\n<td valign=\"top\">\n<p align=\"center\"><font size=\"3\">0.20<\/font><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"200\"><font size=\"3\">stencil thickness (mm) <strong><font color=\"#9b00d3\">&lt;<\/font><\/strong>                   <br \/> (W\/T &gt;1.5)<\/font><\/td>\n<td valign=\"middle\" width=\"70\" aligh=\"center\">\n<p align=\"center\"><font size=\"3\">0.42<\/font><\/p>\n<\/td>\n<td valign=\"middle\" width=\"70\" aligh=\"center\">\n<p align=\"center\"><font size=\"3\">0.27<\/font><\/p>\n<\/td>\n<td valign=\"middle\" width=\"70\" aligh=\"center\">\n<p align=\"center\"><font size=\"3\">0.18<\/font><\/p>\n<\/td>\n<td valign=\"middle\" width=\"70\" aligh=\"center\">\n<p align=\"center\"><font size=\"3\">0.13<\/font><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li><font size=\"4\">Area Ratio (\u958b\u5b54\u9762\u7a4d\u6bd4) = Area of Aperture Opening \/ Area of Aperture Walls = (LxW) \/ [2x(L+W)xT] &gt; 0.66<\/font><\/li>\n<\/ul>\n<\/ul>\n<p align=\"justify\"><font size=\"4\">2. \u91dd\u5c0dPBGA\u5c01\u88dd\u96f6\u4ef6\uff1a\u5efa\u8b70\u7e2e\u6e1b\u76f4\u5f910.05mm\u4ee5\u907f\u514d\u77ed\u8def\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">3. \u91dd\u5c0dCBGA\u5c01\u88dd\u96f6\u4ef6\uff1a\u5efa\u8b70\u5916\u64f40.05\uff5e0.08mm\u4ee5\u907f\u514d\u7a7a\u710a\u3002\u9019\u662f\u56e0\u70ba\u9676\u74f7\u8207FR4\u7684<a title=\"\u4f55\u8b02CTE(\u71b1\u81a8\u8139\u4fc2\u6578)\uff1f\u03b12-CTE\u53c8\u662f\u4ec0\u9ebc\uff1fCTE\u5982\u4f55\u5f71\u97ff\u96fb\u8def\u677f\u54c1\u8cea\" href=\"\/\/m.letratesoro.com\/2016\/08\/cte\/\" target=\"_blank\" rel=\"noopener\">CTE<\/a>\u5dee\u7570\u8f03\u5927\uff0c\u71b1\u8b8a\u5f62\u91cf\u4e5f\u6703\u6709\u8f03\u5927\u5dee\u7570\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">4. \u91dd\u5c0d fine-pitch BGA \u6216 CSP \u5c01\u88dd\u96f6\u4ef6\uff1a\u5982\u958b\u5b54\u70ba\u6b63\u65b9\u5f62\u5247\u5efa\u8b70\u908a\u9577\u5fc5\u9808\u6bd4\u710a\u588a\u7e2e\u5c0f0.025mm\u4e14\u56db\u500b\u76f4\u89d2\u5c0e\u5713\u89d2\uff0c\u7576\u908a\u9577\u70ba0.25mm\u6642\u5c0eR\u89d20.06mm\uff0c\u7576\u908a\u9577\u70ba0.35mm\u6642\u5c0eR\u89d20.09mm\u4ee5\u65b9\u4fbf\u843d\u932b\u4e26\u907f\u514d\u77ed\u8def\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">5. \u91dd\u5c0d\u96fb\u963b\u96fb\u5bb9\u96fb\u611f\u9019\u985e\u3010\u7247\u5f0f\u96f6\u4ef6(chip components)\u3011\u7684\u5efa\u8b70\uff1a<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u4e00\u822c\u4f86\u8aaa\uff0c<font style=\"background-color: rgb(255, 255, 0);\">\u7247\u5f0f\u96f6\u4ef6\u5728\u5403\u932b\u4e0a\u8f03\u5bb9\u6613\u767c\u751f\u932b\u73e0\u554f\u984c<\/font>\uff0c\u800c\u932b\u73e0\u7684\u767c\u751f\uff0c\u9664\u4e86\u932b\u818f\u6c27\u5316\u539f\u56e0\u5916\uff0c\u5176\u6700\u5927\u539f\u56e0\u5c31\u662f\u932b\u818f\u5167\u542b\u7684\u52a9\u710a\u5291\u5728<font size=\"4\">\u9ad8\u6eab\u4e0b\u8fc5\u901f\u63ee\u767c\u8f49\u8b8a\u6210\u6c23\u9ad4\u4e26\u5e36\u8457\u90e8\u4efd\u7684\u932b\u818f\u5f80\u5916\u5074\u79fb\u52d5\uff08\u60f3\u50cf\u6c23\u70b8\u7684\u60c5\u5f62\uff09\uff0c\u65bc\u662f\u5728\u96f6\u4ef6\u672c\u9ad4\u4e0b\u65b9\u8207PCB\u4e4b\u9593\u7684\u5c0f\u7e2b\u9699\u5c31\u6703\u5f62\u6210\u5206\u96e2\u7684\u932b\u818f\u5340\u584a\uff0c\u56de\u710a\u6642\u96f6\u4ef6\u4e0b\u65b9\u56e0\u70ba\u6c92\u6709\u710a\u588a\u53ef\u4ee5\u5438\u6536\u7194\u878d\u7684\u932b\u818f\uff0c\u518d\u52a0\u4e0a\u96f6\u4ef6\u672c\u9ad4\u7684\u91cd\u91cf\u64e0\u58d3\uff0c\u65bc\u662f\u5206\u96e2\u7684\u7194\u878d\u932b\u818f\u5c31\u6703\u5f9e\u96f6\u4ef6\u7684\u672c\u9ad4\u4e0b\u65b9\u5192\u51fa\u4f86\u4e26\u5728\u5176\u908a\u7de3\u4e0a\u5f62\u6210\u5c0f\u932b\u73e0\u3002        <br \/><img decoding=\"async\" border=\"0\" alt=\"SMT\u932b\u73e0\u5f62\u6210\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/Solder_bead.jpg\" \/><\/font><\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u6240\u4ee5\uff0c\u7247\u5f0f\u96f6\u4ef6\u901a\u5e38\u6703\u63a1\u7528<strong><font color=\"#0000ff\">\u5c0f\u7cbe\u9748\u578b(inverse home-plate)<\/font><\/strong>\u6216\u662f<strong><font color=\"#0000ff\">\u672c\u58d8\u677f\u578b(home-plate)<\/font><\/strong>\u5169\u7a2e\u958b\u5b54\u5f62\u72c0\u4f86\u6e1b\u5c11\u932b\u818f\u5370\u5237\u91cf\uff0c\u8b93\u52a9\u710a\u5291\u53ef\u4ee5\u9806\u5229\u63ee\u767c\uff0c\u4ee5<strong><font color=\"#0000ff\">\u907f\u514d\u932b\u73e0<\/font><\/strong>\u7522\u751f\u53ca<strong><font color=\"#0000ff\">\u77ed\u8def<\/font><\/strong>\u767c\u751f\u3002\u81f3\u65bc\u958b\u5b54\u5927\u5c0f\u901a\u5e38\u5efa\u8b70\u63a1\u7528\u710a\u588a\u76841\/3\u5bec(W)\u62161\/3\u9577(L)\uff0c\u4f46\u5f37\u70c8\u5efa\u8b70\u4f9d\u64da\u81ea\u5df1\u7522\u54c1\u7684\u7279\u6027\u9069\u7576\u8abf\u6574\u5927\u5c0f\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5982\u679c\u64d4\u5fc3\u932b\u818f\u91cf\u6e1b\u5c11\u592a\u591a\u5f71\u97ff\u5230\u710a\u932b\u6027\uff0c\u5247\u53ef\u4ee5\u8003\u616e\u63a1\u53d6<strong><font color=\"#0000ff\">\u6e1b\u534a\u5713\u9ede\u578b<\/font><\/strong>\u6216\u662f<strong><font color=\"#0000ff\">\u5713\u578b<\/font><\/strong>\u7684\u932b\u818f\u5370\u5237\u958b\u5b54\u4f86\u6e1b\u5c11\u932b\u818f\u91cf\u3002\u4e0d\u904e\u5713\u578b\u958b\u5b54\u53ef\u80fd\u6703\u589e\u52a0\u932b\u818f\u6b98\u7559\u5728\u92fc\u677f\u958b\u5b54\u5074\u58c1\u9020\u6210\u843d\u932b\u91cf\u4e0d\u7a69\u7684\u554f\u984c\uff0c\u5c24\u5176\u662f\uff0c<strong><font color=\"#ff0000\">\u4f7f\u7528\u5713\u578b\u958b\u5b54\u524d\u5efa\u8b70\u8981\u5148\u505a\u904e\u5be6\u9a57<\/font><\/strong>\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\"> \u91dd\u5c0d\u6709<a title=\"\u96fb\u963b\u96fb\u5bb9\u5c0f\u96f6\u4ef6\u767c\u751f\u7a7a\u710a\u53ca\u7acb\u7891(\u5893\u7891\u6548\u61c9)\u7684\u539f\u56e0\" href=\"\/\/m.letratesoro.com\/2014\/02\/solder-tombstone\/\" rel=\"noopener\" target=\"_blank\">\u7acb\u7891<\/a>\u7f3a\u9ede\u7684\u96f6\u4ef6\u5247\u53ef\u4ee5\u8003\u616e\u63a1\u7528\u672c\u58d8\u677f\u578b\uff0c\u7136\u5f8c\u5f80\u672c\u58d8\u5c16\u7aef\u65b9\u5411\u5916\u64f4\u4e00\u9ede\u9ede\uff0c\u6216\u662f\u5c07\u932b\u818f\u958b\u5b54\u6574\u500b\u5f80\u672c\u58d8\u5c16\u7aef\u65b9\u5411\u7a0d\u5fae\u504f\u79fb\u4e00\u9ede\u9ede\u4f86\u89e3\u6c7a\u3002\u4f46\u9019\u53ea\u662f\u6cbb\u6a19\u4e0d\u6cbb\u672c\uff0c\u7acb\u7891\u554f\u984c\u6700\u597d\u9084\u662f\u900f\u904e\u96fb\u8def\u677f\u8a2d\u8a08\u589e\u52a0\u3010<a href=\"\/\/m.letratesoro.com\/2013\/05\/thermal-relief-pad\/\">\u71b1\u963b (thermal relief)<\/a>\u3011\u4e26\u7e2e\u5c0f\u710a\u588a\u5167\u8ddd\u5c3a\u5bf8\u4f86\u89e3\u6c7a\uff0c\u624d\u80fd\u4e00\u52de\u6c38\u9038\u3002<\/font><\/p>\n<p><font size=\"4\"><img decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2022\/07\/chip-components-stencil-aperture01.png\" \/><\/font><\/p>\n<p align=\"justify\"><font size=\"4\">6.\u91dd\u5c0dMELF\u9019\u985e\u5713\u67f1\u9ad4\u96f6\u4ef6\uff1a\u5efa\u8b70\u63a1\u7528C\u5b57\u5f62\u958b\u5b54\u4ee5\u907f\u514d\u96f6\u4ef6\u56e0\u70ba\u6efe\u52d5\u800c\u504f\u79fb\u7684\u554f\u984c\u3002<\/font><\/p>\n<p><img decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2022\/07\/MELF-stencil-aperture01.png\" \/><\/p>\n<hr \/>\n<p><font size=\"4\">\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>   <br \/><a href=\"\/\/m.letratesoro.com\/2020\/11\/smt-graping\/\"><font size=\"4\">\u4ec0\u9ebc\u662fSMT\u8461\u8404\u7403\u73e0\u73fe\u8c61(Graping)\uff1f\u8a72\u5982\u4f55\u89e3\u6c7a\uff1f<\/font><\/a>   <br \/><a href=\"\/\/m.letratesoro.com\/2021\/07\/spi-volume-tolerance\/\"><font size=\"4\">SPI\u7ba1\u63a7\u7684\u53c3\u6578\u662f\u600e\u9ebc\u8a02\u51fa\u4f86\u7684\u5462\uff1f\u932b\u818f\u539a\u5ea6\u4e0a\u4e0b\u9650\u5982\u4f55\u5b9a\u7fa9\uff1f<\/font><\/a>   <br \/><a href=\"\/\/m.letratesoro.com\/2010\/11\/solder-paste-selection\/\"><font size=\"4\">\u5982\u4f55\u6311\u9078\u4e00\u652f\u9069\u5408\u81ea\u5df1\u516c\u53f8\u7522\u54c1\u7684\u932b\u818f (Solder paste selection)<\/font><\/a>   <br \/><a href=\"\/\/m.letratesoro.com\/2011\/08\/solder-paste-printing\/\"><font size=\"4\">\u5982\u4f55\u5c07\u932b\u818f\u5370\u5237\u65bc\u96fb\u8def\u677f(solder paste printing)\u8207\u5f71\u97ff\u932b\u818f\u5370\u5237\u54c1\u8cea\u7684\u56e0\u7d20<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6709\u7db2\u53cb\u63d0\u554f\uff1a\u300e\u92fc\u677f\/\u92fc\u7db2(stencil)\u7684\u539a\u5ea6 &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[149],"aioseo_notices":[],"views":10341,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10257"}],"collection":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/comments?post=10257"}],"version-history":[{"count":15,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10257\/revisions"}],"predecessor-version":[{"id":11261,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10257\/revisions\/11261"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=10257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=10257"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=10257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}