{"id":3325,"date":"2015-04-01T08:27:00","date_gmt":"2015-04-01T00:27:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=3325"},"modified":"2022-03-29T20:55:22","modified_gmt":"2022-03-29T12:55:22","slug":"bga-cross-section-quality","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2015\/04\/bga-cross-section-quality\/","title":{"rendered":"\u300aPCBA\u4e0d\u826f\u5206\u6790\u300bBGA\u5207\u7247\u5f8c\u5982\u4f55\u5224\u65b7\u710a\u63a5\u54c1\u8cea"},"content":{"rendered":"

\"BGA\u5207\u7247\u5f8c\u5982\u4f55\u5224\u65b7\u710a\u63a5\u54c1\u8cea\"<\/p>\n

\u9019\u7bc7\u6587\u7ae0\u57fa\u672c\u4e0a\u662f\u5beb\u7d66\u90a3\u4e9b\u9084\u4e0d\u77e5\u9053\u8a72\u300c\u5982\u4f55\u5224\u65b7PCBA\u5207\u7247\u5f8c\u7684BGA\u5403\u932b\u597d\u58de\u300d\u670b\u53cb\u5011\u53c3\u8003\u7528\u7684\u3002\u56e0\u70ba\u5de5\u4f5c\u718a\u624b\u908a\u6b63\u597d\u6709\u5e7e\u5f35\u81ea\u5df1\u5bb6\u7522\u54c1\u5207\u7247\u5f8c\u62cd\u7684BGA\u710a\u932b\u7167\u7247\uff0c\u525b\u597d\u53ef\u4ee5\u62ff\u4f86\u505a\u70ba\u6559\u6750\u4e4b\u7528\uff0c\u800c\u4e14\u9084\u6709\u5f88\u5178\u578b\u7684\u710a\u932b\u96d9\u7403(HIP, Head-In-Pillow)\u4ee5\u53ca\u932b\u7403\u88ab\u62c9\u626f\u5f8c\u9020\u6210\u710a\u932b\u4e0d\u4f73\u7684\u7167\u7247\u3002<\/font><\/p>\n

\u901a\u5e38\u6211\u5011\u5728\u62ff\u5230\u4e00\u5f35BGA\u7684\u5207\u7247\u7167\u7247\u6642\uff0c\u7b2c\u4e00\u500b\u8981\u5224\u65b7\u7684\u5c31\u662f\u300c\u90a3\u4e00\u908a\u5c6c\u65bc<\/font>BGA\u5c01\u88dd\u9762<\/em><\/font><\/strong>\u300d\uff0c\u300c\u90a3\u4e00\u908a\u53c8\u662f\u5c6c\u65bc<\/font>\u96fb\u8def\u677f\u7d44\u88dd\u9762<\/em><\/font><\/strong>\u300d\u3002\u5c0d\u65bc\u9019\u500b\u554f\u984c\uff0c\u5de5\u4f5c\u718a\u7684\u65b9\u6cd5\u662f\u5f9e\u9285\u7b94\u7684\u539a\u5ea6<\/font><\/strong>\u4f86\u505a\u5224\u65b7\uff0c\u9285\u7b94\u6bd4\u8f03\u539a\u7684\u90a3\u4e00\u9762\u901a\u5e38\u662f\u96fb\u8def\u677f\u7684\u7d44\u88dd\u9762\uff0c\u56e0\u70baBGA\u5c01\u88dd\u7684\u8f09\u677f\u901a\u5e38\u90fd\u6bd4\u96fb\u5b50\u7d44\u88dd\u7684\u96fb\u8def\u677f\u4f86\u5f97\u8584\u975e\u5e38\u591a\uff0c\u6240\u4ee5\u6703\u9078\u7528\u6bd4\u8f03\u8584\u7684\u9285\u7b94\u539a\u5ea6\u3002<\/font><\/p>\n

\uff08\u5c0d\u65bc\u5927\u9678\u90a3\u4e9b\u76dc\u6587\u7db2\u7ad9\uff0c\u8907\u88fd\u8cbc\u4e0a\u672c\u7ad9\u6587\u7ae0\u5f8c\uff0c\u5c45\u7136\u9084\u6539\u6210\u81ea\u5df1\u516c\u53f8\u7684\u540d\u5b57\uff0c\u611f\u5230\u7121\u6065\uff01\u6587\u7ae0\u5167\u5bb9\u90e8\u4efd\u9632\u6b62\u8907\u88fd\u7de8\u6392\u53ef\u80fd\u9020\u6210\u60a8\u95b1\u8b80\u7684\u4e0d\u4fbf\uff0c\u8acb\u898b\u8ad2\uff01\uff09<\/em><\/p>\n

\uff08\u7576\u7136\u9019\u4e5f\u53ea\u662f\u500b\u4eba\u5c0dBGA\u7684\u898b\u89e3\uff0c\u5982\u679c\u5c08\u5bb6\u8def\u904e\u6709\u610f\u898b\u4e5f\u8acb\u7559\u8a00\u6307\u6559\uff09<\/font><\/strong><\/p>\n

<\/p>\n

\u5176\u6b21\u662f\u5982\u679c\u5207\u7247\u5f8c\u5df2\u7d93\u53ef\u4ee5\u660e\u986f\u770b\u5230\u96d9\u7403\u73fe\u8c61\u6642\uff0c\u5982\u4e0b\u5716\u70ba\u5178\u578b\u7684HIP\u5047\u51b7\u710a\u7f3a\u9ede\uff0c\u7403\u9ad4\u6bd4\u8f03\u5927\u7684\u90a3\u4e00\u9762\u901a\u5e38\u662f\u8f09\u677f\u4e0a\u539f\u4f86\u7684\u932b\u7403\uff0c\u56e0\u70baBGA\u932b\u7403\u7684\u9ad4\u7a4d\u5df2\u7d93\u904e\u4e86\u4e00\u6b21Reflow\uff0c\u800c\u5370\u5237\u5728PCB\u4e0a\u7684\u932b\u818f\u7d93\u904e\u4e00\u6b21Reflow\u52a9\u710a\u5291\u63ee\u767c\u5f8c\u5269\u4e0b\u7684\u9ad4\u7a4d\u5c31\u53ea\u6709\u539f\u4f86\u7684\u4e00\u534a\u4e86\uff0c\u6240\u4ee5BGA\u9762\u7684\u7403\u9ad4\u901a\u5e38\u6bd4\u8f03\u5927\u3002\u81f3\u65bc\u710a\u588a(\u710a\u76e4)\u5927\u5c0f\u5247\u4e0d\u4e00\u5b9a\uff0c\u8981\u770b\u81ea\u5bb6PCB\u4f48\u7dda\u8a2d\u8a08\u6642\u6709\u6c92\u6709\u5805\u6301\u8a2d\u8a08\u6210\u3010<\/font>Cooper Define Pad Design\uff08\u9285\u7b94\u7368\u7acb\u710a\u588a\u8a2d\u8a08\uff09<\/font><\/a>\u3011\u4e5f\u5c31\u662fNSMD (Non-Solder Mask Defined)\u3002<\/font><\/p>\n

\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1aSMD\u548cNSMD\u710a\u588a\u8a2d\u8a08\u7684\u5340\u5225\u3001\u512a\u7f3a\u9ede\u8207\u4f7f\u7528\u6642\u6a5f\u5efa\u8b70<\/a><\/font><\/p>\n

\u63a5\u8457\uff0c\u6211\u5011\u4f86\u5224\u65b7BGA\u710a\u63a5\u7684\u54c1\u8cea\u597d\u58de<\/em><\/strong><\/font><\/font><\/p>\n

\u4e0b\u5716\u53ef\u4ee5\u5f88\u6e05\u695a\u770b\u51fa\u5178\u578b\u3010\u96d9\u7403(HIP)\u3011\u710a\u63a5\u554f\u984c\uff0c\u4e0d\u77ad\u89e3\u7684\u670b\u53cb\u53ef\u4ee5\u9ede\u64ca\u3010<\/font>HIP(Head-in-Pillow \u6795\u982d\u6548\u61c9)<\/font><\/a>\u3011\u9023\u7d50\u505a\u9032\u4e00\u6b65\u63a2\u8a0e\u3002\u61c9\u8a72\u670999%\u7684HIP\u73fe\u8c61\u90fd\u6703\u767c\u751f\u5728BGA\u5c01\u88dd\u56db\u5468\u6700\u5916\u9762\u4e00\u6392\u7684\u932b\u7403\u4e0a\uff0c\u5c24\u5176\u662f\u56db\u500b\u89d2\u843d\u7684\u4f4d\u7f6e\uff0c\u539f\u56e0\u4e5f\u5e7e\u4e4e\u90fd\u662fBGA\u8f09\u677f\u6216PCB\u7d93\u904e\u56de\u710a\u7210\u6642\u56e0\u70ba\u9ad8\u6eab\u800c\u7522\u751f\u96fb\u8def\u677f\u7684\u8b8a\u5f62\u7ff9\u66f2\uff0c\u7b49\u677f\u5b50\u56de\u6eab\u5f8c\u8b8a\u5f62\u8b8a\u5c0f\uff0c\u4f46\u7194\u878d\u7684\u932b\u5df2\u7d93\u51b7\u537b\u56fa\u5316\uff0c\u65bc\u662f\u5f62\u6210\u96d9\u7403\u9760\u5728\u4e00\u8d77\u6c92\u6709\u4e92\u76f8\u878d\u932b\u7684\u6a21\u6a23\u3002HIP\u5c31\u662f\u56b4\u91cd\u7684BGA\u710a\u932b\u4e0d\u826f\uff0c\u9019\u7a2e\u73fe\u8c61\u4e00\u822c\u4e0d\u592a\u5bb9\u6613\u88ab\u5de5\u5ee0\u5167\u7684X-Ray\u6216\u6e2c\u8a66\u7a0b\u5e8f\u7d66\u5075\u6e2c\u51fa\u4f86\uff0c\u800c\u6703\u6d41\u5230\u5ba2\u6236\u7684\u624b\u4e0a\uff0c\u53ef\u662f\u4f7f\u7528\u4e00\u6bb5\u6642\u9593\u5f8c\u7522\u54c1\u5c31\u6703\u56e0\u70ba\u529f\u80fd\u554f\u984c\u53cd\u8986\u51fa\u73fe\u800c\u88ab\u9001\u56de\u4f86\u4fee\u7406\u3002<\/font><\/p>\n

\"\u4e0b\u5716\u53ef\u4ee5\u5f88\u6e05\u695a\u770b\u51fa\u5178\u578b\u3010\u96d9\u7403(HIP)\u3011\u710a\u63a5\u554f\u984c\uff0c\u4e0d\u77ad\u89e3\u7684\u670b\u53cb\u53ef\u4ee5\u9ede\u64ca\u3010HIP(Head-in-Pillow<\/p>\n

\u7b2c\u4e8c\u7a2eBGA\u710a\u932b\u4e0d\u826f\u662f\u4ecb\u65bcHIP\u8207\u6b63\u5e38\u710a\u932b\u4e4b\u9593\u7684\u932b\u7403\uff0c\u77e5\u9053\u600e\u9ebc\u5224\u65b7\u90a3\u4e00\u9762\u662fPCB\u7aef\u4e86\u5427\uff1f\u5f9e\u4e0b\u5716\u770b\u4f86BGA\u932b\u7403\u8207PCB\u4e0a\u7684\u932b\u818f\u5df2\u7d93\u5b8c\u5168\u7194\u878d\u5728\u4e00\u8d77\u4e86\uff0c\u56e0\u70ba\u770b\u4e0d\u5230\u96d9\u7403\uff0c\u53ef\u662f\u6574\u500b\u932b\u7403\u537b\u6709\u88ab\u4e0a\u4e0b\u62c9\u9577\u4e14\u5e7e\u4e4e\u65b7\u88c2\u7684\u8de1\u8c61\uff0c\u89c0\u5bdfPCB\u9762\u7684\u710a\u932b\u4e5f\u53ef\u4ee5\u767c\u73fe\u932b\u7403\u8207PCB\u710a\u588a\u63a5\u89f8\u7684\u9762\u7a4d\u8b8a\u5c0f\u4e86\uff0c\u800c\u4e14\u9084\u51fa\u73fe\u4e0d\u5c0b\u5e38\u7684\u89d2\u5ea6\uff0c\u9019\u662f\u56e0\u70ba\u932b\u7403\u88ab\u6574\u500b\u5f80\u4e0a\u62c9\u958b\u7684\u7de3\u6545\u3002\u53e6\u5916\u4e00\u500b\u53ef\u80fd\u539f\u56e0\u662f\u710a\u588a\u70baSMD(Solder Mask Defened)\u8a2d\u8a08\uff0c\u9632\u710a(solder mask)\u5370\u5237\u9020\u6210\u5403\u932b\u8b8a\u5c0f\u3002\u9019\u7a2e\u710a\u932b\u65b7\u88c2\u7684\u6a5f\u7387\u61c9\u8a72\u53ea\u662f\u65e9\u665a\u7684\u554f\u984c\uff0c\u5ba2\u6236\u7aef\u4f7f\u7528\u6642\u5982\u679c\u6709\u632f\u52d5\u6216\u662f\u7d93\u5e38\u958b\u95dc\u6a5f\u5c0e\u81f4\u71b1\u8139\u51b7\u7e2e\uff0c\u90fd\u6703\u52a0\u901f\u5176\u65b7\u88c2\u7684\u6a5f\u7387\u3002<\/font> <\/font><\/p>\n

\"\u7b2c\u4e8c\u7a2eBGA\u710a\u932b\u4e0d\u826f\u662f\u754c\u65bcHIP\u8207\u6b63\u5e38\u710a\u932b\u4e4b\u9593\u7684\u932b\u7403\uff0c\u77e5\u9053\u600e\u9ebc\u5224\u65b7\u90a3\u4e00\u9762\u662fPCB\u7aef\u4e86\u5427\uff1f\u5f9e\u4e0b\u5716\u770b\u4f86BGA\u932b\u7403\u8207PCB\u4e0a\u7684\u932b\u818f\u5df2\u7d93\u5b8c\u5168\u7194\u878d\u5728\u4e00\u8d77\u4e86\uff0c\u56e0\u70ba\u770b\u4e0d\u5230\u96d9\u7403\uff0c\u53ef\u662f\u6574\u500b\u932b\u7403\u537b\u6709\u88ab\u4e0a\u4e0b\u62c9\u9577\u4e14\u5e7e\u4e4e\u65b7\u88c2\u7684\u8de1\u8c61\uff0c\u89c0\u5bdf<\/p>\n

\u4e0b\u9762\u9019\u5f35\u5716\u7684BGA\u932b\u7403\u710a\u63a5\u57fa\u672c\u4e0a\u53ef\u4ee5\u63a5\u53d7\uff0c\u7403\u5f62\u4e5f\u6709\u58d3\u6241\u5f62\u6210\u6c34\u5e73\u6a62\u5713\u5f62\u7684\u710a\u932b\uff0c\u4f46\u9084\u662f\u770b\u5f97\u51fa\u4f86\u9760\u8fd1PCB\u7aef\u7684\u932b\u7403\u5403\u932b\u9762\u7a4d\u4f3c\u4e4e\u6bd4BGA\u8f09\u677f\u7aef\u4f86\u5f97\u5c0f\uff0c\u800c\u4e14\u5f62\u6210\u710a\u932b\u92b3\u89d2\uff0c\u8b93\u61c9\u529b\u5bb9\u6613\u96c6\u4e2d\u5728\u92b3\u89d2\u7684\u5730\u65b9\uff0c\u770b\u4f86\u61c9\u8a72\u4e5f\u662fSMD\u710a\u588a\u8a2d\u8a08\u9020\u6210\u5403\u932b\u9762\u7a4d\u8f03\u5c0f\u3002<\/font><\/p>\n

\"\u4e0b\u9762\u9019\u5f35\u5716\u7684BGA\u932b\u7403\u710a\u63a5\u7b97\u9084\u53ef\u4ee5\u63a5\u53d7\uff0c\u7403\u5f62\u4e5f\u6709\u58d3\u6241\u5f62\u6210\u6c34\u5e73\u6a62\u5713\u5f62\u7684\u710a\u932b\uff0c\u4f46\u9084\u662f\u770b\u5f97\u51fa\u4f86\u9760\u8fd1PCB\u7aef\u7684\u932b\u7403\u9084\u662f\u6709\u9ede\u88ab\u62c9\u958b\u7684\u60c5\u5f62\u3002\"<\/p>\n

\u5176\u5be6\u6bd4\u8f03\u597d\u7684\u932b\u7403\u710a\u63a5\u5f62\u72c0\u61c9\u8a72\u8981\u50cf\u4e0b\u9762\u9019\u5f35\u5716\u7247\u4e00\u6a23\uff0c\u932b\u7403\u985e\u4f3c\u4e00\u500b\u300c\u71c8\u7c60\u578b\u300d\uff0c\u932b\u7403\u8986\u84cb\u5728\u6574\u500bPCB\u710a\u588a\u4e0a\u3002\u4e0d\u904e\u6709\u6642\u5019\u710a\u588a\u6703\u8a2d\u8a08\u6210\u7da0\u6cb9\u8986\u84cb\uff0c\u5f62\u72c0\u5c31\u6703\u6bd4\u8f03\u50cf\u4e0a\u9762\u90a3\u5f35\u5716\u4e86\u3002\u6240\u4ee5\uff0cBGA\u7684\u710a\u932b\u5982\u679c\u8981\u5403\u5f97\u597d\uff0c\u8a2d\u8a08\u6210NSMD\u710a\u588a\u8a2d\u8a08\u6703\u6bd4\u8f03\u512a\uff0c\u4f46\u662fNSMD\u7684\u7684\u5be6\u969b\u710a\u588a\u76f8\u5c0dSMD\u4f86\u5f97\u5c0f\uff0c\u710a\u588a\u7684\u9644\u8457\u529b(bonding force)\u662f\u500b\u9700\u8981\u8003\u616e\u7684\u56e0\u7d20\u3002<\/font><\/p>\n

\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>\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><\/font><\/p>\n

    <\/font>\"\u5176\u5be6\u6bd4\u8f03\u597d\u7684\u932b\u7403\u710a\u63a5\u5f62\u72c0\u61c9\u8a72\u8981\u50cf\u4e0b\u9762\u9019\u5f35\u5716\u7247\u4e00\u6a23\uff0c\u932b\u7403\u985e\u4f3c\u4e00\u500b\u300c\u71c8\u7c60\u578b\u300d\uff0c\u932b\u7403\u8986\u84cb\u5728\u6574\u500bPCB\u710a\u588a\u4e0a\u3002\u4e0d\u904e\u6709\u6642\u5019\u710a\u588a\u6703\u8a2d\u8a08\u6210\u7da0\u6cb9\u8986\u84cb\uff0c\u5f62\u72c0\u5c31\u6703\u6bd4\u8f03\u50cf\u4e0a\u9762\u90a3\u5f35\u5716\u4e86\u3002\"<\/p>\n

\u5982\u679c\u6709\u710a\u932b\u88c2\u958b\u7684\u60c5\u5f62\uff0c\u90a3\u5b78\u53ef\u5c31\u66f4\u591a\u4e86\uff0c\u5de5\u4f5c\u718a\u9019\u88e1\u6709\u6574\u7406\u4e00\u7cfb\u5217\u95dc\u95dc\u65bcBGA\u710a\u932b\u7834\u88c2\u7684\u6587\u7ae0\u7d66\u5927\u5bb6\u53c3\u8003\uff1a\u96fb\u5b50\u96f6\u4ef6\u6389\u843d\u3001BGA\u710a\u932b\u7834\u88c2\u554f\u984c\u6587\u7ae0\u6574\u7406<\/a><\/font><\/p>\n

\n

\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>
\u5f71\u7247\uff1aBGA \u56de\u6d41\u710a\u710a\u63a5\u904e\u7a0b<\/font><\/a>
BGA\u932b\u7403\u7f3a\u9ede\u7684\u5e7e\u7a2e\u6aa2\u67e5\u65b9\u6cd5<\/font><\/a>
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