{"id":3554,"date":"2015-07-15T08:28:00","date_gmt":"2015-07-15T00:28:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=3554"},"modified":"2023-04-06T22:34:25","modified_gmt":"2023-04-06T14:34:25","slug":"bga-design-prevent-crack","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2015\/07\/bga-design-prevent-crack\/","title":{"rendered":"\u5982\u4f55\u5f9e\u8a2d\u8a08\u7aef\u5f37\u5316BGA\u4ee5\u9632\u6b62\u5176\u710a\u9ede\u958b\u88c2\uff1f"},"content":{"rendered":"<p align=\"center\"><img decoding=\"async\" title=\"BGA\u7684underfill\u7834\u88c2\" alt=\"BGA\u7684underfill\u7834\u88c2\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2015\/04\/underfill_crack102.jpg\" \/><\/p>\n<p align=\"justify\"><font size=\"4\">\u516c\u53f8\u6700\u8fd1\u6709\u597d\u591a\u540c\u4e8b\u90fd\u5728\u554f\uff1a\u300e<\/font><strong><font color=\"#0000ff\" size=\"4\">\u5230\u5e95BGA\u8981\u5982\u4f55\u8a2d\u8a08\u624d\u53ef\u4ee5\u52a0\u5f37\u4e26\u6539\u5584\u5176\u5f37\u5ea6\u4ee5\u9632\u6b62BGA\u958b\u88c2(crack)\uff1f<\/font><\/strong><font size=\"4\">\u300f\uff0c\u539f\u4f86\u516c\u53f8\u5167\u6709\u500b\u9ad8\u5c64\u5728\u524d\u5e7e\u5929\u4e5f\u5f97\u4e86<\/font><font style=\"background-color: rgb(255, 255, 0);\" size=\"4\">\u67efP\u4e0a\u8eab\u75c7\u5019\u7fa4<\/font><font size=\"4\">\uff0c\u5728\u67d0\u500b\u7522\u54c1\u7684\u958b\u767c\u6703\u8b70\u4e0a\u6482\u4e0b\u72e0\u8a71\u8aaa\uff1a\u300e\u4e0d\u8981\u60f9\u518d\u6211\u751f\u6c23\u4e86\uff0c\u8981\u662f\u518d\u6709\u5ba2\u6236\u62b1\u6028\u7522\u54c1\u6709BGA\u958b\u88c2\u554f\u984c\uff0c\u5c31\u5fc5\u9808\u8981\u6709\u4eba\u70ba\u6b64\u8ca0\u8cac\uff01\u300f\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5176\u5be6\u6700\u8a72\u8ca0\u8cac\u7684\u4e0d\u5c31\u662f\u9019\u4e9b\u516c\u53f8\u9ad8\u5c64\u55ce\uff1f\u65e2\u8981\u6c42\u7522\u54c1\u8a2d\u8a08\u8981\u8f15\u53c8\u8981\u8584\uff0c\u9084\u8981\u6c42\u8981\u8d95\u9032\u5ea6\uff0c\u628a\u539f\u672c12\u500b\u6708\u7684\u65b0\u7522\u54c1\u9031\u671f\u7e2e\u77ed\u70ba9\u500b\u6708\uff0c\u73fe\u5728\u53c8\u58d3\u7e2e\u70ba6\u500b\u6708\uff0c\u800c\u4e14ID\u9084\u4e00\u76f4\u8b8a\u4f86\u8b8a\u53bb\uff0c\u66f4\u8981\u6c42\u9032\u5ea6(Schedule)\u4e0d\u80fd\u5ef6\u5f8c\uff0c\u53c8\u8981\u7522\u54c1\u8a2d\u8a08\u51fa\u4f86\u5b8c\u7f8e\u7121\u7f3a\uff0c\u9019\u7fa4\u5de5\u7a0b\u5e2b\u5011\u5c31\u53ea\u80fd\u8ce3\u547d\u3001\u8ce3\u809d\uff0c\u4eba\u4eba\u81ea\u5371\uff0c\u9019\u516c\u53f8\u6587\u5316\u600e\u9ebc\u8b8a\u6210\u4e86\u9019\u500b\u6a23\u5b50\uff1f<\/font><\/p>\n<p><!--more--><\/p>\n<p align=\"justify\"><font size=\"4\">\u5176\u5be6<a href=\"\/\/m.letratesoro.com\/about\/\">\u5de5\u4f5c\u718a<\/a>\u5728\u9019\u500b\u90e8\u843d\u683c\u88e1\u5df2\u7d93\u6709\u591a\u7bc7\u6587\u7ae0\u8a0e\u8ad6\u904e\u95dc\u65bc<a title=\"\u96fb\u5b50\u96f6\u4ef6\u6389\u843d\u3001BGA\u710a\u932b\u7834\u88c2\u554f\u984c\u6587\u7ae0\u6574\u7406\" href=\"\/\/m.letratesoro.com\/2020\/03\/bga-crack-summary\/\" target=\"_blank\" rel=\"noopener\">BGA\u6389\u843d<\/a>\u3001\u710a\u63a5\u4e0d\u826f\uff0c\u4ee5\u53caBGA\u932b\u7403\u958b\u88c2(crack)\u7684\u554f\u984c\u4e86\uff0c\u4e0d\u904e\u597d\u50cf\u9084\u6c92\u6709\u6bd4\u8f03\u5b8c\u6574\u7684\u6574\u7406\u904e\u300e<\/font><font color=\"#0000ff\" size=\"4\"><strong>\u5982\u4f55\u5f9e\u8a2d\u8a08\u7aef\u5f37\u5316BGA\u9632\u6b62\u958b\u88c2<\/strong><\/font><font size=\"4\">\u300f\u7684\u5c0d\u7b56\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5728\u958b\u59cb\u63a2\u8a0e\u9019\u500b\u8b70\u984c\u4e4b\u524d\uff0c\u6211\u5011\u5f97\u8981\u5148\u4e86\u89e3<font style=\"background-color: rgb(255, 255, 0);\">BGA\u70ba\u4f55\u6703\u88c2\u958b\uff1f<\/font>\u5148\u6487\u958b\u88fd\u9020\u7684\u554f\u984c\uff0c\u5047\u8a2d\u6240\u6709\u7684BGA\u932b\u7403\u710a\u63a5\u90fd\u662f\u826f\u597d\u7684\u3001<a title=\"\u4f55\u8b02IMC (Intermetallic Compound)\uff1fIMC\u8207PCB\u710a\u63a5\u5f37\u5ea6\u6709\u4f55\u95dc\u4fc2\uff1fIMC\u539a\u5ea6\u6709IPC\u6a19\u6e96\uff1f\" href=\"\/\/m.letratesoro.com\/2014\/03\/soldering-strength-imc\/\" target=\"_blank\" rel=\"noopener\">IMC<\/a>\u7684\u751f\u9577\u4e5f\u662f\u826f\u597d\uff0c\u4f46\u4f9d\u7136\u9084\u662f\u767c\u751fBGA\u88c2\u958b\u60c5\u5f62\uff0c\u5176\u6700\u4e3b\u8981\u539f\u56e0\u61c9\u8a72\u5c31\u662f\u3010<strong><font color=\"#0000ff\">\u61c9\u529b(Stress)<\/font><\/strong>\u3011\u4e86\uff0c<\/font><a href=\"\/\/m.letratesoro.com\/about\/\"><font size=\"4\">\u5de5\u4f5c\u718a<\/font><\/a><font size=\"4\">\u4e4b\u6240\u4ee5\u9019\u9ebc\u65b7\u5b9a\uff0c\u662f\u56e0\u70ba\u5206\u6790\u904e\u6240\u6709\u4e0d\u826f\u54c1\u5f8c\u767c\u73fe\u96fb\u8def\u677f\u4e0a\u96f6\u4ef6\u6389\u843d\u6216\u958b\u88c2\u554f\u984c\u5e7e\u4e4e\u90fd\u8207\u61c9\u529b\u812b\u96e2\u4e0d\u4e86\u95dc\u4fc2\u3002<\/font><\/p>\n<p><font color=\"#9b00d3\" size=\"5\"><strong>\u96fb\u8def\u677f\u96f6\u4ef6\u6389\u843d\u6216\u932b\u88c2\u7684\u61c9\u529b(stress)\u4f86\u6e90\u6709\u4e0b\u5217\u5e7e\u7a2e\uff1a<\/strong><\/font><\/p>\n<ul>\n<li>\n<p align=\"justify\"><font size=\"4\"><strong><font color=\"#0000ff\">\u61c9\u529b\u4f86\u81ea\u5167\u90e8\u6f5b\u8b8a\u7522\u751f<\/font><\/strong>           <br \/>\u6bd4\u5982\u8aaa\u96fb\u8def\u677f\u6216BGA\u5c01\u88dd\u7d93\u56de\u710a(reflow)\u9ad8\u6eab\u6642\u7684\u8b8a\u5f62\uff0c\u61c9\u529b\u6703\u4e00\u76f4\u88ab\u91cb\u653e\u5230\u9054\u4e00\u500b\u5e73\u8861\u9ede\u624d\u6703\u505c\u6b62\uff0c\u9019\u500b\u5e73\u8861\u9ede\u4e5f\u6709\u53ef\u80fd\u5c31\u662f\u932b\u7403\u88c2\u958b\u7684\u6642\u5019\u3002 <\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\"><strong><font color=\"#0000ff\">\u61c9\u529b\u4f86\u81ea\u5916\u90e8\u7684\u649e\u64ca\u6216\u65bd\u58d3<\/font><\/strong>           <br \/>\u4ee5\u624b\u6a5f\u70ba\u4f8b\uff0c\u6700\u53ef\u80fd\u7684\u5916\u90e8\u61c9\u529b\u5c31\u662f\u5c31\u5728\u4f7f\u7528\u8005\u7684\u53e3\u888b\u5167\u53d7\u529b\u5f4e\u66f2\uff08iPhone6 plus\u5f4e\u66f2\u9580\u4e8b\u4ef6\uff09\uff0c\u6216\u662f\u56e0\u70ba\u4e0d\u5c0f\u5fc3\u6389\u843d\u5730\u4e0a\u6240\u9020\u6210\u7684\u885d\u64ca\u61c9\u529b\u3002 <\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\"><strong><font color=\"#0000ff\">\u61c9\u529b\u4f86\u81ea\u74b0\u5883\u6eab\u5ea6\u8b8a\u5316\u6240\u7522\u751f\u7684\u71b1\u8139\u51b7\u7e2e\u73fe\u8c61<\/font><\/strong>           <br \/>\u6709\u4e9b\u5730\u5340\u5728\u51ac\u5929\u7684\u6642\u5019\u5ba4\u5916\u7d50\u51b0\uff0c\u7576\u7522\u54c1\u5f9e\u5ba4\u5167\u6709\u6696\u6c23\u7684\u74b0\u5883\u79fb\u52d5\u5230\u7d50\u51b0\u7684\u5ba4\u5916\u5c31\u6703\u767c\u751f\u6fc0\u70c8\u7684\u6eab\u5ea6\u8b8a\u5316\uff1b\u5728\u71b1\u5e36\u5730\u5340\uff0c\u5ba4\u5167\u6709\u51b7\u6c23\uff0c\u5f9e\u5ba4\u5167\u8d70\u5230\u5ba4\u5916\u5c31\u6703\u767c\u751f\u6eab\u5ea6\u7684\u5de8\u5927\u6539\u8b8a\uff0c\u66f4\u5225\u8aaa\u4e0d\u5c0f\u5fc3\u6216\u662f\u6545\u610f\u628a\u7522\u54c1\u653e\u5728\u6c7d\u8eca\u5167\u4e86\uff0c\u767d\u5929\u66ec\u592a\u967d\u6eab\u5ea6\u5347\u9ad8\uff0c\u591c\u665a\u8f3b\u5c04\u51b7\u537b\u6eab\u5ea6\u6025\u901f\u4e0b\u964d\u3002\u6eab\u5ea6\u4e4b\u6240\u4ee5\u91cd\u8981\u9084\u95dc\u4fc2\u5230\u4e0d\u540c\u7684\u6750\u6599\u6703\u6709\u4e0d\u540c\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\">\u71b1\u81a8\u8139\u4fc2\u6578(CTE)<\/a>\uff0c\u96fb\u8def\u677f\u677f\u6750\u7684\u81a8\u8139\u4fc2\u6578\u80af\u5b9a\u8207\u932b\u7403(solder ball)\u4e0d\u540c\uff0c\u800c\u4e14\u8207BGA\u5c01\u88dd\u7684\u6750\u8cea\u4e5f\u4e0d\u540c\uff0c\u8a66\u60f3\u4e00\u822c\u7684\u9053\u8def\u6a4b\u6a11\u90fd\u6703\u8a2d\u8a08\u300c\u4f38\u7e2e\u7e2b\u300d\u4f86\u964d\u4f4e\u6750\u6599\u71b1\u8139\u51b7\u7e2e\u7684\u98a8\u96aa\uff0c\u4f46\u662f\u96fb\u5b50\u6750\u6599\u4f3c\u4e4e\u53ea\u80fd\u76e1\u91cf\u627e\u81a8\u8139\u4fc2\u6578\u5dee\u7570\u6bd4\u8f03\u5c0f\u7684\u6750\u8cea\u4f86\u4f7f\u7528\u3002<\/font><\/p>\n<\/li>\n<\/ul>\n<p><font size=\"4\">\u9019\u88e1\u6709\u5e7e\u7bc7\u8207BGA\u710a\u63a5\u8207\u6389\u843d\u6709\u95dc\u7684\u6587\u7ae0\uff0c\u5efa\u8b70\u53ef\u4ee5\u5148\u95b1\u8b80\u4e00\u4e0b\uff1a<\/font><\/p>\n<ul>\n<li><a href=\"\/\/m.letratesoro.com\/2011\/10\/bga-reflow-process\/\"><font size=\"4\">\u5f71\u7247\uff1aBGA \u56de\u6d41\u710a\u710a\u63a5\u904e\u7a0b<\/font><\/a><\/li>\n<li><a href=\"\/\/m.letratesoro.com\/2012\/02\/bga-hip\/\"><font size=\"4\">BGA\u6795\u982d\u6548\u61c9(head-in-pillow)\u767c\u751f\u7684\u53ef\u80fd\u539f\u56e0<\/font><\/a><\/li>\n<li><a href=\"\/\/m.letratesoro.com\/2011\/03\/bga-dropped\/\"><font size=\"4\">\u5982\u4f55\u5224\u65b7BGA\u6389\u4ef6\u662fSMT\u5de5\u5ee0\u88fd\u7a0b\u6216\u662f\u8a2d\u8a08\u554f\u984c?<\/font><\/a><\/li>\n<li><a href=\"\/\/m.letratesoro.com\/2015\/03\/component-drop-analyze\/\"><font size=\"4\">\u96fb\u8def\u677f\u96f6\u4ef6\u6389\u843d\uff0c\u8a72\u5982\u4f55\u8457\u624b\u5206\u6790\u3001\u5224\u65b7\u4e26\u91d0\u6e05\u554f\u984c\u9ede<\/font><\/a><\/li>\n<\/ul>\n<p align=\"justify\"><font size=\"4\">\u4e86\u89e3\u5230BGA\u96f6\u4ef6\u6389\u843d\u6216\u932b\u7403\u958b\u88c2\u8ddf\u300c\u61c9\u529b(stress)\u300d\u7d55\u5c0d\u812b\u96e2\u4e0d\u4e86\u95dc\u4fc2\u5f8c\uff0c\u63a5\u4e0b\u4f86\u6211\u5011\u5c31\u53ef\u4ee5\u4f86\u8ac7\u8ac7\u5982\u4f55\u5f9e\u8a2d\u8a08\u7aef\u5f37\u5316BGA\u5f37\u5ea6\u4e26\u76e1\u91cf\u9632\u6b62\u5176\u958b\u88c2\uff0c\u65b9\u6cd5\u8aaa\u7834\u4e86\u5176\u5be6\u4e5f\u4e0d\u503c\u9322\uff0c\u5c31\u770b\u505a\u4e0d\u505a\u8207\u600e\u9ebc\u53d6\u6368\u4e86\u3002\u5169\u500b\u65b9\u5411\u601d\u8003\uff0c\u7b2c\u4e00\u500b\u65b9\u6cd5\u5c31\u662f\u60f3\u8fa6\u6cd5\u964d\u4f4e\u61c9\u529b\u7684\u5f71\u97ff\uff0c\u7b2c\u4e8c\u500b\u65b9\u6cd5\u5247\u662f\u52a0\u5f37BGA\u62b5\u6297\u61c9\u529b\u7684\u80fd\u529b\u3002<\/font><\/p>\n<p><strong><font color=\"#9b00d3\" size=\"5\">\u4e0b\u9762\u662f\u5e7e\u500b\u53ef\u4ee5\u5f37\u5316BGA\u9632\u6b62\u958b\u88c2\u7684\u65b9\u6cd5\uff1a<\/font><\/strong><\/p>\n<blockquote>\n<p align=\"justify\"><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4e00\u3001\u589e\u5f37PCB\u6297\u8b8a\u5f62\u80fd\u529b<\/font><\/strong><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u96fb\u8def\u677f(PCB)\u8b8a\u5f62\u901a\u5e38\u4f86\u81ea\u9ad8\u6eab\u56de\u710a(Reflow)\u6240\u9020\u6210\u7684\u5feb\u901f\u6607\u6eab\u8207\u5feb\u901f\u964d\u6eab\uff08\u71b1\u8139\u51b7\u7e2e\uff09\uff0c\u518d\u52a0\u4e0a\u96fb\u8def\u677f\u4e0a\u5206\u4f48\u4e0d\u5747\u7684\u96f6\u4ef6\u8207\u9285\u7b94\uff0c\u66f4\u60e1\u5316\u4e86\u96fb\u8def\u677f\u7684\u8b8a\u5f62\u91cf\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u589e\u52a0\u96fb\u8def\u677f\u62b5\u6297\u8b8a\u5f62\u7684\u65b9\u6cd5\u6709\uff1a<\/font><\/p>\n<p>   <font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">     <\/p>\n<ol>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong>\u589e\u52a0PCB\u7684\u539a\u5ea6\u3002<\/strong>\u5982\u679c\u53ef\u4ee5\u7684\u8a71\uff0c\u5efa\u8b70\u76e1\u91cf\u4f7f\u75281.6mm\u4ee5\u4e0a\u539a\u5ea6\u7684\u96fb\u8def\u677f\u3002\u5982\u679c\u9084\u662f\u5f97\u4f7f\u75280.8mm\u30011.0mm\u30011.2mm\u539a\u5ea6\u7684\u677f\u5b50\uff0c\u5efa\u8b70\u4f7f\u7528<a title=\"\u70ba\u4ec0\u9ebcSMT\u9700\u8981\u56de\u710a\u904e\u7210\u6258\u76e4(reflow carrier)\u8207\u5168\u7a0b\u8f09\u5177(Full process carrier)\uff1f\" href=\"\/\/m.letratesoro.com\/2017\/01\/smt-reflow-carrier\/\" target=\"_blank\" rel=\"noopener\">\u904e\u7210\u6cbb\u5177(reflow carrier)<\/a>\u4f86\u652f\u6490\u4e26\u5f37\u5316\u677f\u5b50\u904e\u7210\u6642\u7684\u8b8a\u5f62\u91cf\u3002<\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4f7f\u7528\u9ad8<a title=\"\u4f55\u8b02\u73bb\u7483\u8f49\u5316\u6eab\u5ea6(Tg, Glass Transition Temperature)\" href=\"\/\/m.letratesoro.com\/2016\/08\/tg-glass-transition-temperature\/\" target=\"_blank\" rel=\"noopener\">Tg<\/a>\u7684PCB\u6750\u8cea\u3002\u9ad8Tg\u610f\u5473\u8457\u9ad8\u525b\u6027\uff0c\u4f46\u662f\u50f9\u9322\u4e5f\u6703\u8ddf\u8457\u4e0a\u5347\uff0c\u9019\u500b\u5fc5\u9808\u53d6\u6368\u3002 <\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5728BGA\u7684\u5468\u570d\u589e\u52a0\u52a0\u5f37\u7b4b\u3002\u5982\u679c\u6709\u7a7a\u9593\uff0c\u53ef\u4ee5\u8003\u616e\u50cf\u5728\u84cb\u623f\u5b50\u4e00\u6a23\uff0c\u5728BGA\u7684\u56db\u5468\u6253\u4e0a\u6709\u652f\u6490\u529b\u7684\u9435\u6846\u4f86\u5f37\u5316\u5176\u62b5\u6297\u61c9\u529b\u7684\u80fd\u529b\u3002 <\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font size=\"4\">\u5728\u96fb\u8def\u677f\u4e0a\u704cEpoxy\u81a0(potted)\u3002\u4e5f\u53ef\u4ee5\u8003\u616e\u5728BGA\u7684\u5468\u570d\u6216\u662f\u5176\u76f8\u5c0d\u61c9\u7684\u96fb\u8def\u677f\u80cc\u9762\u704c\u81a0\uff0c\u4f86\u5f37\u5316\u5176\u6297\u61c9\u529b\u7684\u80fd\u529b\u3002<\/font> <\/font><\/div>\n<\/li>\n<\/ol>\n<p>   <\/font>    <\/p>\n<p align=\"justify\"><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4e8c\u3001\u964d\u4f4ePCB\u7684\u8b8a\u5f62\u91cf<\/font><\/strong><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4e00\u822c\u4f86\u8aaa\u7576\u96fb\u8def\u677f(PCB)\u88ab\u7d44\u88dd\u5230\u6a5f\u6bbc\u4e4b\u5f8c\u61c9\u8a72\u6703\u53d7\u5230\u6a5f\u6bbc\u7684\u4fdd\u8b77\uff0c\u53ef\u662f\u56e0\u70ba\u73fe\u4eca\u7684\u7522\u54c1\u8d8a\u505a\u8d8a\u8584\uff0c\u5c24\u5176\u662f\u624b\u6301\u88dd\u7f6e\uff0c\u7d93\u5e38\u6703\u767c\u751f\u5916\u529b\u5f4e\u66f2\u6216\u662f\u6389\u843d\u649e\u64ca\u6642\u6240\u7522\u751f\u7684\u96fb\u8def\u677f\u8b8a\u5f62\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u60f3\u964d\u4f4e\u5916\u529b\u5c0d\u96fb\u8def\u677f\u6240\u9020\u6210\u7684\u8b8a\u5f62\uff0c\u6709\u4e0b\u5217\u7684\u65b9\u6cd5\uff1a<\/font><\/p>\n<p>   <font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">     <\/p>\n<ol>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u589e\u52a0\u6a5f\u69cb\u5c0d\u96fb\u8def\u677f\u7684\u7de9\u885d\u8a2d\u8a08\u3002\u6bd4\u5982\u8aaa\u8a2d\u8a08\u4e00\u4e9b\u7de9\u885d\u6750\uff0c\u65e2\u4f7f\u6a5f\u6bbc\u8b8a\u5f62\u4e86\uff0c\u5167\u90e8\u7684\u96fb\u8def\u677f\u4ecd\u7136\u53ef\u4ee5\u7dad\u6301\u4e0d\u53d7\u5916\u90e8\u61c9\u529b\u5f71\u97ff\u3002\u4f46\u5fc5\u9808\u53ef\u616e\u7de9\u885d\u6750\u7684\u58fd\u547d\u8207\u80fd\u529b\u3002 <\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5728BGA\u7684\u5468\u570d\u589e\u52a0\u87ba\u7d72\u6216\u5b9a\u4f4d\u56fa\u5b9a\u7684\u6a5f\u69cb\u3002\u5982\u679c\u6211\u5011\u7684\u76ee\u7684\u53ea\u662f\u4fdd\u8b77BGA\uff0c\u90a3\u9ebc\u53ef\u4ee5\u5f37\u5236\u56fa\u5b9aBGA\u9644\u8fd1\u7684\u6a5f\u69cb\uff0c\u8b93BGA\u9644\u8fd1\u4e0d\u6613\u8b8a\u5f62\u3002 <\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5f37\u5316\u5916\u6bbc\u5f37\u5ea6\u4ee5\u9632\u6b62\u5176\u8b8a\u5f62\u5f71\u97ff\u5230\u5167\u90e8\u96fb\u8def\u677f\u3002 <\/font><\/div>\n<\/li>\n<\/ol>\n<p>   <\/font>    <\/p>\n<p><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong>\u4e09\u3001\u589e\u5f37BGA\u7684\u7262\u9760\u5ea6<\/strong><\/font><\/p>\n<p>   <font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">     <\/p>\n<ol>\n<li><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5728BGA\u7684\u5e95\u90e8\u704c\u81a0(underfill)\u3002 <\/font><\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u52a0\u5927\u96fb\u8def\u677f\u4e0aBGA\u710a\u588a\u7684\u5c3a\u5bf8\u3002\u9019\u6a23\u6703\u4f7f\u96fb\u8def\u677f\u7684\u4f48\u7dda\u8b8a\u5f97\u56f0\u96e3\uff0c\u56e0\u70ba\u7403\u8207\u7403\u4e4b\u9593\u53ef\u4ee5\u8d70\u7dda\u7684\u7a7a\u9699\u8b8a\u5c0f\u4e86\u3002<\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4f7f\u7528SMD(Solder Mask Designed) layout\u3002\u7528\u7da0\u6f06\u8986\u84cb\u710a\u588a\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7\u6587\u7ae0\u3010<\/font><a href=\"\/\/m.letratesoro.com\/2014\/10\/bga-pad-design\/\" rel=\"noopener noreferrer\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5982\u4f55\u8a2d\u8a08\u52a0\u5f37\u7522\u54c1\u7684BGA\u710a\u588a\u5f37\u5ea6\u4ee5\u9632\u6b62BGA\u958b\u88c2\uff08Solder-Mask-Defined, SMD\uff09<\/font><\/a><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u3011 \u3002              <br \/>\u203b\u8acb\u6ce8\u610f\uff1aSMD\u8207NSMD\u710a\u588a\u8a2d\u8a08\u5176\u5be6\u5404\u6709\u512a\u52a3\uff0c\u63a1\u7528SMD\u53ef\u4ee5\u52a0\u5f37\u710a\u588a\u8207PCB\u7684\u7d50\u5408\u529b\uff0c\u4f46\u662f\u537b\u4e0d\u5229\u932b\u7403\u7684\u710a\u63a5\u5f37\u5ea6\uff0c\u63a1\u7528NSMD\u5247\u6703\u52a0\u5f37\u710a\u63a5\u5f37\u5ea6\uff0c\u4f46\u662f\u4e0d\u5229\u710a\u588a\u8207\u96fb\u8def\u677f\u7684\u7d50\u5408\u529b\u3002<\/font><\/div>\n<p align=\"justify\">\u3010<a href=\"\/\/m.letratesoro.com\/2018\/10\/shear-pull-bga-ball\/\" rel=\"noopener noreferrer\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5be6\u9a57\u6bd4\u8f03SMD\u8207NSMD\u710a\u588a\u8a2d\u8a08\u63a8\u7403\u53ca\u62c9\u529b\u6e2c\u8a66\u5c0dBGA\u932b\u88c2\u7684\u5f71\u97ff<\/font><\/a><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u3011\u3001\u3010<\/font><a href=\"\/\/m.letratesoro.com\/2018\/09\/smd_nsmd\/\" rel=\"noopener noreferrer\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u70ba\u4e86\u5c0d\u6297\u932b\u7403\u88c2\u958b\uff0cBGA\u710a\u588a\u61c9\u8a72\u8a2d\u8a08\u6210SMD\u6216NSMD\uff1fSMD\u8207NSMD\u7684\u512a\u7f3a\u9ede<\/font><\/a>\u3011<font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">              <br \/><\/font><img loading=\"lazy\" decoding=\"async\" title=\"BGA NSMD SMD_layout\" style=\"border-width: 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; display: inline; background-image: none;\" border=\"0\" alt=\"BGA NSMD SMD_layout\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2015\/04\/NSMDSMD_layout.png\" width=\"480\" height=\"244\" \/><\/p>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4f7f\u7528Vias-in-pad(VIP)\u8a2d\u8a08\u3002\u4f46\u710a\u588a\u4e0a\u7684\u5b54(via)\u5fc5\u8a31\u96fb\u934d\u586b\u5b54\uff0c\u5426\u5247\u904e\u56de\u710a\u6642\u6703\u6709\u6c23\u6ce1\u7522\u751f\uff0c\u53cd\u800c\u5bb9\u6613\u5c0e\u81f4\u932b\u7403\u5f9e\u4e2d\u9593\u65b7\u88c2\u3002\u9019\u5c31\u985e\u4f3c\u84cb\u623f\u5b50\u6253\u5730\u6a01\u662f\u4e00\u6a23\u7684\u9053\u7406\u3002\u53ef\u4ee5\u53c3\u8003\u3010<a href=\"\/\/m.letratesoro.com\/2010\/11\/vias-in-pad\/\">\u5c0e\u901a\u5b54\u5728\u588a(Vias-in-pad)\u7684\u8655\u7406\u539f\u5247<\/a>\u3011<\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u589e\u52a0\u92b2\u932b\u91cf\u3002\u4f46\u5fc5\u9808\u63a7\u5236\u5728\u4e0d\u53ef\u4ee5\u77ed\u8def\u7684\u60c5\u6cc1\u4e0b\u3002\u3010<\/font><a href=\"\/\/m.letratesoro.com\/2015\/08\/bga-increase-solder-paste-volume\/\" rel=\"noopener noreferrer\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u589e\u52a0\u932b\u818f\u91cf\u53ef\u4ee5\u6539\u5584BGA\u710a\u63a5\u4e0d\u826f\uff1f<\/font><\/a><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u3011<\/font><\/div>\n<\/li>\n<\/ol>\n<p>   <\/font><\/p><\/blockquote>\n<p align=\"justify\"><a href=\"\/\/m.letratesoro.com\/about\/\"><font size=\"4\">\u5de5\u4f5c\u718a<\/font><\/a><font size=\"4\">\u500b\u4eba\u5f37\u70c8\u5efa\u8b70\uff0c\u5982\u679c\u5df2\u7d93\u662f\u6210\u54c1\uff0c\u6700\u597d\u53ef\u4ee5\u4f7f\u7528\u3010Strain Gage\u3011\u627e\u51fa\u96fb\u8def\u677f\u7684\u61c9\u529b\u96c6\u4e2d\u9ede\u3002\u5982\u679c\u6709\u56f0\u96e3\uff0c\u4e5f\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u96fb\u8166\u6a21\u64ec\u5668\u4f86\u627e\u770b\u770b\u53ef\u80fd\u7684\u61c9\u529b\u6703\u96c6\u4e2d\u5728\u54ea\u88e1\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u8acb\u53c3\u8003\uff1a\u3010<a href=\"\/\/m.letratesoro.com\/2017\/01\/strain-gauge\/\">BGA\u932b\u88c2\uff0c\u4f7f\u7528\u61c9\u8b8a\u7247(Strain Gauge)\u91cf\u6e2c\u96fb\u8def\u677f\u5230\u5e95\u90a3\u500b\u74b0\u7bc0\u7522\u751f\u8f03\u5927\u8b8a\u5f62\u91cf<\/a>\u3011\u4e00\u6587\u3002<\/font><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" title=\"displacement stress_simulation_diagram\" style=\"border-width: 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; display: inline; background-image: none;\" border=\"0\" alt=\"displacement stress_simulation_diagram\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2015\/04\/displacementstress_simulation_diagram.png\" width=\"560\" height=\"138\" \/><\/p>\n<p><font size=\"4\">\u5982\u679c\u4f60\u5c0dBGA\u932b\u88c2\u3001\u6389\u4ef6\u6709\u8208\u8da3\uff0c\u5efa\u8b70\u95b1\u8b80\u6587\u7ae0\uff1a      <br \/><\/font><a href=\"\/\/m.letratesoro.com\/2018\/02\/solder-crack-study-01\/\" rel=\"noopener noreferrer\" target=\"_blank\"><font size=\"4\">\u96fb\u5b50\u96f6\u4ef6\u6389\u843d\u6216BGA\u932b\u88c2\u4e00\u5b9a\u662fSMT\u88fd\u7a0b\u554f\u984c\u8ff7\u601d(1)\uff1f\u932b\u88c2\u53ea\u662f\u61c9\u529b\u5927\u65bc\u7d50\u5408\u529b\u4e4b\u5fc5\u7136\u7d50\u679c<\/font><\/a><\/p>\n<hr \/>\n<p><font size=\"4\">\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>     <br \/><a href=\"\/\/m.letratesoro.com\/2012\/06\/micro-usb-connector-drop-solution\/\"><font size=\"4\">Micro-USB\u9023\u63a5\u5668\u6389\u843d\u7684\u89e3\u6c7a\u5c0d\u7b56<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2011\/04\/b2b-connector-improvement\/\"><font size=\"4\">\u677f\u5c0d\u677f\u9023\u63a5\u5668(B2B connector)\u6389\u843d\u7684\u6539\u5584\u63aa\u65bd<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2015\/03\/component-drop-analyze\/\"><font size=\"4\">\u96fb\u8def\u677f\u96f6\u4ef6\u6389\u843d\uff0c\u8a72\u5982\u4f55\u8457\u624b\u5206\u6790\u3001\u5224\u65b7\u4e26\u91d0\u6e05\u554f\u984c\u9ede<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u516c\u53f8\u6700\u8fd1\u6709\u597d\u591a\u540c\u4e8b\u90fd\u5728\u554f\uff1a\u300e\u5230\u5e95BGA\u8981\u5982\u4f55\u8a2d\u8a08 &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28,115,16,22],"tags":[47,157],"aioseo_notices":[],"views":21068,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3554"}],"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=3554"}],"version-history":[{"count":8,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3554\/revisions"}],"predecessor-version":[{"id":10651,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3554\/revisions\/10651"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=3554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=3554"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=3554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}