{"id":3590,"date":"2015-08-26T08:22:00","date_gmt":"2015-08-26T00:22:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=3590"},"modified":"2024-02-28T19:42:13","modified_gmt":"2024-02-28T11:42:13","slug":"bga-increase-solder-paste-volume","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2015\/08\/bga-increase-solder-paste-volume\/","title":{"rendered":"\u589e\u52a0\u932b\u818f\u91cf\u53ef\u4ee5\u6539\u5584BGA\u710a\u63a5\u4e0d\u826f\uff1f"},"content":{"rendered":"<p align=\"justify\"><img loading=\"lazy\" decoding=\"async\" title=\"\u5982\u4f55\u589e\u52a0\u932b\u91cf\u53ef\u4ee5\u6539\u5584BGA\u710a\u63a5\u4e0d\u826f\uff1f\" style=\"border-width: 0px; margin: 5px 15px 0px 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; float: left; display: inline; background-image: none;\" border=\"0\" alt=\"\u5982\u4f55\u589e\u52a0\u932b\u91cf\u53ef\u4ee5\u6539\u5584BGA\u710a\u63a5\u4e0d\u826f\uff1f\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2015\/05\/BGA_X-Ray_picture.jpg\" width=\"280\" align=\"left\" height=\"275\" \/><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5982\u4f55\u63d0\u6607BGA\u710a\u63a5\u54c1\u8cea\u4e00\u76f4\u662fSMT\u5de5\u7a0b\u5e2b\u6301\u7e8c\u8ffd\u6c42\u7684\u54c1\u8cea\u6539\u5584\u76ee\u6a19\u4e4b\u4e00\uff0c\u7279\u5225\u662f\u91dd\u5c0d\u7d30\u9593\u7403\u8ddd(fine pitch)\u7684BGA\u96f6\u4ef6\uff0c\u4e00\u822c\u6211\u5011\u5c0dBGA\u7684\u7403\u8ddd\u57280.8mm\u4ee5\u4e0b\u5c31\u6703\u7a31\u5176\u70ba\u7d30\u9593\u8ddd\uff08\u6709\u6642\u5404\u5bb6\u5b9a\u7fa9\u6703\u6709\u9ede\u5c0f\u5dee\u7570\uff09\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">BGA\u4e4b\u6240\u4ee5\u96e3\u710a\u662f\u56e0\u70ba\u5176\u710a\u9ede\u5168\u90fd\u96c6\u4e2d\u5728\u5176\u672c\u9ad4\u7684\u4e0b\u65b9\uff0c\u710a\u63a5\u5f8c\u96e3\u4ee5\u7528\u76ee\u8996\u6216<a title=\"\u4ec0\u9ebc\u662fAOI\uff1f2D AOI\u53ef\u4ee5\u6aa2\u6e2c\u54ea\u4e9b\u96fb\u8def\u677f\u7d44\u88dd\u7684\u7f3a\u9ede\uff1f\" href=\"\/\/m.letratesoro.com\/2011\/11\/auto-optical-inspection\/\" target=\"_blank\" rel=\"noopener\">AOI (Auto Optical Inspector)<\/a>\u5f71\u50cf\u6aa2\u6e2c\u5100\u5668\u4f86\u6aa2\u67e5\u5176\u710a\u63a5\u5f8c\u7684\u54c1\u8cea\uff0c\u6709\u6642\u5019\u65e2\u4f7f\u4f7f\u7528X-Ray\u4e5f\u96e3\u4ee5\u5224\u65b7\u5176\u662f\u5426\u6709\u7a7a\u710a\u6216\u5047\u710a\u73fe\u8c61\u3002\uff08\u67d0\u4e9b\u53ef\u4ee5\u65cb\u8f49\u89d2\u5ea6\u7684X-Ray\u6216\u662f5DX\u6709\u6a5f\u6703\u53ef\u4ee5\u6aa2\u67e5BGA\u7684\u7a7a\u710a\u554f\u984c\uff0c\u4f46\u9019\u985eX-Ray\u6aa2\u67e5\u6a5f\u6240\u8cbb\u4e0d\u8cb2\uff0c\u4f3c\u4e4e\u9084\u6c92\u9054\u5230\u96a8\u7dda\u6aa2\u67e5\u91cf\u7522\u7684\u7d93\u6fdf\u898f\u6a21\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u7d93\u9a57\u544a\u8a34\u6211\u5011\uff0cBGA\u710a\u63a5\u5f8c\u6700\u4e3b\u8981\u7684\u54c1\u8cea\u554f\u984c\u5e7e\u4e4e\u90fd\u96c6\u4e2d\u5728<a href=\"\/\/m.letratesoro.com\/2012\/02\/bga-hip\/\" rel=\"noopener\" target=\"_blank\">HIP (Head-In-Pillow\uff0c\u6795\u982d\u6548\u61c9\uff0c\u96d9\u7403\u6548\u61c9)<\/a>\u3002\u9019\u662f\u56e0\u96fb\u8def\u677f(PCB)\u6d41\u7d93<a title=\"SMT\u56de\u6d41\u710a\u7684\u6eab\u5ea6\u66f2\u7dda(Reflow Profile)\u89e3\u8aaa\u8207\u6ce8\u610f\u4e8b\u9805\" href=\"\/\/m.letratesoro.com\/2010\/07\/reflow-profile\/\" target=\"_blank\" rel=\"noopener\">Reflow\u7684\u56de\u710a<\/a>\u9ad8\u6eab\u5340\u6642\u5bb9\u6613\u9020\u6210PCB\u677f\u6750\u53caBGA\u672c\u9ad4\u8b8a\u5f62\uff0c\u5728\u932b\u818f\u53caBGA\u932b\u7403\u7194\u878d\u6210\u6db2\u614b\u6642\u4e92\u76f8\u5206\u96e2\u6c92\u6709\u63a5\u89f8\u5728\u4e00\u8d77\uff0c\u7b49\u96fb\u8def\u677f\u6eab\u5ea6\u958b\u59cb\u4e0b\u964d\u4e26\u4f4e\u65bc\u710a\u932b\u7684\u7194\u9ede\u5f8c\uff0cPCB\u53caBGA\u672c\u9ad4\u7684\u8b8a\u5f62\u91cf\u4e5f\u6f38\u6f38\u8b8a\u5c0f\uff0c\u53ef\u662f\u932b\u818f\u53ca\u932b\u7403\u5df2\u7d93\u51dd\u7d50\u8b8a\u56de\u56fa\u614b\uff0c\u4ee5\u81f4\u5f62\u6210\u96d9\u7403\u91cd\u758a\u7684\u5047\u710a\u73fe\u8c61\uff0c\u9019\u5c31\u662f\u6709\u540d\u7684HIP\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u800c90%\u4ee5\u4e0a\u7684HIP\u5927\u591a\u51fa\u73fe\u5728BGA\u7684\u6700\u5916\u6392\u932b\u7403\u6216\u5176\u56db\u500b\u89d2\u843d\u5340\u57df\uff0c\u9019\u662f\u56e0\u70baBGA\u5c01\u88dd\u5c0d\u89d2\u7dda\u7684\u8ddd\u96e2\u6700\u9577\uff0c\u76f8\u5c0d\u7684\u8b8a\u5f62\u4e5f\u5c31\u6700\u56b4\u91cd\uff0c\u8b8a\u5f62\u91cf\u7b2c\u4e8c\u56b4\u91cd\u7684\u5730\u65b9\u5247\u662fBGA\u6700\u5916\u6392\u7684\u932b\u7403\u3002<\/font><\/p>\n<p><!--more--><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u6839\u64da\u4ee5\u4e0a\u7684\u7d93\u9a57\uff0c\u4ee5\u53ca\u8a31\u591aSMT\u524d\u8f29\u5011\u505a\u904e\u7684\u5be6\u9a57\u986f\u793a\uff0c<font style=\"background-color: rgb(255, 255, 0);\">\u589e\u52a0BGA\u7684\u710a\u932b\u91cf\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u9019\u985e\u56e0\u70ba\u6eab\u5ea6\u9020\u6210\u677f\u6750\u8b8a\u5f62\u6240\u9020\u6210\u7684HIP\u554f\u984c<\/font>\u3002\u53ef\u662f\u8981\u5c0f\u5fc3\u932b\u818f\u91cf\u5982\u679c\u589e\u52a0\u592a\u591a\u53cd\u800c\u6703\u9020\u6210\u710a\u63a5\u77ed\u8def\u7684\u554f\u984c\uff0c\u4e0d\u53ef\u4e0d\u614e\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u6240\u4ee5\u4e0b\u9762<a href=\"\/\/m.letratesoro.com\/about\/\" rel=\"noopener\" target=\"_blank\">\u5de5\u4f5c\u718a<\/a>\u6240\u9078\u64c7\u7684\u65b9\u6cd5\u662f<font style=\"background-color: rgb(255, 255, 0);\">\u5c40\u90e8\u589e\u52a0BGA\u7684\u932b\u818f\u91cf<\/font>\u800c\u4e0d\u662f\u5168\u90e8\u7684\u932b\u7403\u710a\u588a\u90fd\u589e\u52a0\u932b\u91cf\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a<a href=\"\/\/m.letratesoro.com\/2015\/05\/solve-bga-hip\/\" target=\"_blank\" rel=\"noopener\">\u5982\u4f55\u89e3\u6c7aBGA\u932b\u7403\u7684HIP(Head-In-Pillow)\u6216HoP\u865b\u710a\u554f\u984c<\/a><\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u6539\u8b8aBGA\u7684\u932b\u818f\u91cf\u53ef\u4ee5\u5f9e\u92fc\u677f(Stencil)\u4f86\u4e0b\u624b\uff0c\u57fa\u672c\u539f\u5247\u5c31\u662f\u8b93<font style=\"background-color: rgb(255, 255, 0);\">BGA\u6700\u5916\u4e00\u6392\u6216\u56db\u500b\u89d2\u843d\u7684\u932b\u7403\u932b\u818f\u5370\u5237\u91cf\uff0c\u6bd4\u5269\u9918\u7684\u5176\u4ed6\u932b\u7403\u7684\u932b\u818f\u91cf\u4f86\u5f97\u591a<\/font>\uff0c\u53ef\u662f\u53c8\u4e0d\u80fd\u591a\u592a\u591a\uff0c\u9019\u6a23\u624d\u53ef\u4ee5\u5728PCB\u8207BGA\u672c\u9ad4\u8b8a\u5f62\u6642\u9084\u4fdd\u6709\u8db3\u5920\u7684\u932b\u818f\u8207BGA\u5e95\u4e0b\u7684\u932b\u7403\u63a5\u89f8\u5230\u3002<\/font><\/p>\n<table cellspacing=\"0\" cellpadding=\"2\" width=\"599\" border=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"325\"><img loading=\"lazy\" decoding=\"async\" title=\"\u5de5\u4f5c\u718a\u9078\u64c7\u7684\u65b9\u6cd5\u662f\u5c40\u90e8\u589e\u52a0BGA\u7684\u932b\u818f\u91cf\u800c\u4e0d\u662f\u5168\u90e8\u7684\u932b\u7403\u710a\u588a\u90fd\u589e\u52a0\u932b\u91cf\u3002\" alt=\"\u5de5\u4f5c\u718a\u9078\u64c7\u7684\u65b9\u6cd5\u662f\u5c40\u90e8\u589e\u52a0BGA\u7684\u932b\u818f\u91cf\u800c\u4e0d\u662f\u5168\u90e8\u7684\u932b\u7403\u710a\u588a\u90fd\u589e\u52a0\u932b\u91cf\u3002\" src=\"https:\/\/mpe.researchmfg.com\/wp-content\/uploads\/BGA_stencil_aperature03.png\" width=\"320\" height=\"299\" \/><\/td>\n<td valign=\"middle\" width=\"272\">\n<ul>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font color=\"#0000ff\"><strong>\u7576BGA\u932b\u7403\u5927\u65bc0.4mm\uff1a<\/strong><\/font>                   <br \/> \u5c07BGA\u6700\u5916\u570d\u56db\u500b\u908a\u7684\u932b\u7403\u932b\u818f\u5370\u5237\u91cf\u589e\u52a0\uff0c\u628a\u92fc\u677f\u5916\u64f4\u958b\u6210\u6b63\u65b9\u5f62\u8207\u539f\u4f86\u932b\u7403\u5713\u710a\u588a\u5f62\u6210\u4e00\u500b<font color=\"#9b00d3\">\u5167\u63a5\u5713<\/font>\uff0c\u5176\u4ed6\u7684\u932b\u7403\u710a\u588a\u7dad\u6301\u539f\u4f86\u7684\u91cf\u3002\u6700\u5916\u5708\u932b\u818f\u91cf\u6bd4\u5176\u9918\u5167\u5708\u591a\u4e8627.4%\u3002<\/font><\/div>\n<\/li>\n<li>\n<div align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font color=\"#0000ff\"><strong>\u7576BGA\u932b\u7403\u5c0f\u65bc0.4mm\uff1a<\/strong><\/font>                   <br \/>BGA\u5916\u570d\u56db\u500b\u908a\u7684\u932b\u7403\u932b\u818f\u5370\u5237\u7dad\u6301\u4e0d\u8b8a\uff0c\u4f46\u662f\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u5247\u6e1b\u5c11\u932b\u818f\u91cf\uff0c\u5c07\u92fc\u677f\u958b\u5b54\u7e2e\u5c0f\u958b\u6210\u6b63\u65b9\u5f62\u8207\u539f\u4f86\u932b\u7403\u5713\u710a\u588a\u5f62\u6210\u4e00\u500b<font color=\"#9b00d3\">\u5916\u63a5\u5713<\/font>\u3002\u5176\u9918\u5167\u5708\u7684\u932b\u818f\u91cf\u6bd4\u6700\u5916\u5708\u5c11\u4e8636.3%\u3002<\/font><\/div>\n<\/li>\n<\/ul>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5982\u6b64\u4e00\u4f86\uff0c\u4e0d\u8ad6\u662f\u90a3\u7a2e\u5c3a\u5bf8\u7684BGA\uff0c\u5176\u6700\u5916\u570d\u4e00\u5708\u932b\u7403\u7684\u932b\u818f\u91cf\u90fd\u6703\u6bd4\u5167\u5708\u7684\u932b\u818f\u91cf\u591a\u5927\u7d0427~36%\uff0c\u9019\u6a23\u5c31\u53ef\u4ee5\u7528\u4f86\u78ba\u4fddPCB\u8207BGA\u672c\u9ad4\u6d41\u7d93\u9ad8\u6eab\u8b8a\u5f62\u6642\u9084\u6709\u8db3\u5920\u7684\u932b\u818f\u53ef\u4ee5\u4fdd\u6301\u8207BGA\u5e95\u4e0b\u7684\u932b\u7403\u4e92\u76f8\u63a5\u89f8\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4e0b\u9762\u7684\u5716\u7247\u70baBGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002<\/font><\/p>\n<p><img decoding=\"async\" title=\"BGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002\" style=\"border-width: 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; background-image: none;\" border=\"0\" alt=\"BGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002\" src=\"https:\/\/mpe.researchmfg.com\/wp-content\/uploads\/BGA_ball_top_left.png\" \/><img decoding=\"async\" title=\"BGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002\" style=\"border-width: 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; background-image: none;\" border=\"0\" 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title=\"BGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002\" style=\"border-width: 0px; padding-top: 0px; padding-right: 0px; padding-left: 0px; background-image: none;\" border=\"0\" alt=\"BGA\u932b\u7403\u5c3a\u5bf8\u5c0f\u65bc0.4mm\uff0c\u63a1\u7528\u964d\u4f4eBGA\u5167\u570d\u8972\u7403\u7684\u932b\u818f\u91cf\u6240\u5f97\u5230X-Ray\uff0c\u7a0d\u5fae\u7559\u610f\u4e00\u4e0b\u53ef\u4ee5\u767c\u73fe\u6700\u5916\u5708\u7684\u932b\u91cf(\u5713\u7684\u76f4\u5f91)\u6bd4\u5176\u4ed6\u5167\u570d\u7684\u932b\u7403\u4e0a\u7684\u932b\u91cf\u4f86\u5f97\u591a\u4e00\u9ede\u9ede\u3002\u4e5f\u5c31\u662f\u5916\u5708\u7684\u9ed1\u8272\u5713\u5f62\u76f4\u5f91\u6bd4\u5167\u5708\u7684\u5713\u5f62\u4f86\u5f97\u5927\u4e00\u9ede\u9ede\u3002\" src=\"https:\/\/mpe.researchmfg.com\/wp-content\/uploads\/BGA_ball_size_left_bottom.png\" \/><img decoding=\"async\" src=\"https:\/\/mpe.researchmfg.com\/wp-content\/uploads\/BGA_ball_size_right_bottom.png\" \/><\/p>\n<hr \/>\n<p><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5ef6\u4f38\u95b1\u8b80\uff1a      <br \/><\/font><a href=\"\/\/m.letratesoro.com\/2015\/07\/bga-design-prevent-crack\/\"><font size=\"4\">\u5982\u4f55\u5f9e\u8a2d\u8a08\u7aef\u5f37\u5316BGA\u4ee5\u9632\u6b62\u5176\u710a\u9ede\u958b\u88c2\uff1f<\/font><\/a><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><\/font><font size=\"4\">      <br \/><\/font><a href=\"\/\/m.letratesoro.com\/2015\/04\/b-i-detect-ddr-hip\/\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u70ba\u4f55\u7522\u54c1\u57f7\u884c\u71d2\u6a5f(B\/I)\u4e5f\u7121\u6cd5\u6514\u622a\u5230DDR\u865b\u710a\u7684\u554f\u984c\uff1f<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2014\/10\/bga-pad-design\/\"><font size=\"4\">\u5982\u4f55\u8a2d\u8a08\u52a0\u5f37\u710a\u588a\u5f37\u5ea6\u4ee5\u9632\u6b62BGA\u958b\u88c2\uff08SolderMask Defined, SMD\uff09<\/font><\/a><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><\/font><font size=\"4\">      <br \/><\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u63d0\u6607BGA\u710a\u63a5\u54c1\u8cea\u4e00\u76f4\u662fSMT\u5de5\u7a0b\u5e2b\u6301\u7e8c\u8ffd\u6c42 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