{"id":11127,"date":"2014-03-19T09:12:00","date_gmt":"2014-03-19T01:12:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=11127"},"modified":"2024-03-13T13:18:27","modified_gmt":"2024-03-13T05:18:27","slug":"cn-soldering-strength-imc","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2014\/03\/cn-soldering-strength-imc\/","title":{"rendered":"[\u7b80\u4e2d]\u4ec0\u4e48\u662fIMC(Intermetallic Compound)\uff1fIMC\u4e0ePCB\u710a\u63a5\u5f3a\u5ea6\u6709\u4f55\u5173\u7cfb\uff1fIMC\u5c42\u539a\u5ea6\u6709IPC\u6807\u51c6\uff1f"},"content":{"rendered":"

\"\u4ec0\u4e48\u662fIMC<\/font><\/p>\n

\u5728\u7535\u8def\u677f\u7684\u7ec4\u88c5\u710a\u63a5\u8fc7\u7a0b\u4e2d\uff0c\u7ecf\u5e38\u4f1a\u542c\u5230\u5de5\u7a0b\u5e08\u6216\u5b9e\u9a8c\u5ba4\u7684\u5206\u6790\u62a5\u544a\u91cc\u63d0\u5230<\/font>IMC<\/font><\/strong>\u8fd9\u4e2a\u540d\u8bcd\uff0c\u90a3\u7a76\u7adfIMC\u662f\u5565\u4e1c\u897f\uff1fIMC\u5728\u7535\u8def\u677f\u7ec4\u88c5(PCBA)<\/a>\u710a\u63a5\u7684\u8fc7\u7a0b\u5f53\u4e2d\u53c8\u626e\u6f14\u4e86\u4ec0\u4e48\u6837\u7684\u89d2\u8272\uff1f\u5b83\u4f1a\u5f71\u54cd\u5230\u710a\u63a5\u7684\u5f3a\u5ea6\u5417\uff1f\u5e38\u5e38\u542c\u5230\u6709\u4eba\u8bf4\u8fd9\u4e2aIMC\u5c42\u592a\u8584\uff0c\u90a3\u4e2aIMC\u5c42\u957f\u5f97\u592a\u539a\uff0c\u90a3\u7a76\u7adfIMC\u5c42\u7684\u539a\u5ea6\u5e94\u8be5\u843d\u5728\u591a\u5c11\u624d\u6bd4\u8f83\u5408\u7406\u5462\uff1f<\/font><\/p>\n

\u4e0b\u9762\u7684\u6587\u7ae0\u662f\u5de5\u4f5c\u718a\u6709\u4e00\u6b21\u53bb\u4e0a\u4e86\u4e00\u5802\u201c\u767d\u84c9\u751f\u201d\u8001\u5e08\u5173\u4e8e<\/font>PCB\u710a\u63a5\u5f3a\u5ea6\u4e0eIMC<\/font><\/strong>\u7684\u8bfe\u7a0b\u540e\u7684\u5fc3\u5f97\u6574\u7406\uff0c\u5927\u5e08\u5f00\u8bb2\u8fd8\u771f\u7684\u53ef\u4ee5\u5b66\u5230\u4e0d\u5c11\u4e1c\u897f\u3002<\/font><\/p>\n

<\/p>\n

1. \u4ec0\u4e48\u662fIMC\uff1f<\/font><\/font><\/h2>\n
\n

\u8fd9\u91cc\u6240\u8c08\u8bba\u7684IMC\u662f\u3010Intermetallic Compound\u3011\u7684\u82f1\u6587\u7f29\u5199\u7b80\u79f0\uff0c\u4f9d\u636e\u767d\u84c9\u751f\u8001\u5e08\u7684\u8bf4\u6cd5\uff0c\u4e2d\u6587\u5e94\u8be5\u7ffb\u8bd1\u6210\u3010\u754c\u9762\u91d1\u5c5e\u5171\u5316\u7269<\/font><\/strong>\u3011\u6216\u3010\u4ecb\u91d1\u5c5e<\/font><\/strong>\u3011\u3002<\/font><\/p>\n

\"\u4ec0\u4e48\u662fIMC<\/font><\/font><\/font>\u800cIMC\u662f\u4e00\u79cd\u5316\u5b66\u5206\u5b50\u5f0f<\/font><\/strong>\uff0c\u4e0d\u662f\u5408\u91d1\uff08\u6ce8\uff1a\u4f46\u4e5f\u6709\u4eba\u628aIMC\u5f52\u7c7b\u4e3a\u5408\u91d1(alloy)\u7684\u4e00\u79cd\uff09\uff0c\u4e5f\u4e0d\u662f\u7eaf\u91d1\u5c5e\u3002<\/font><\/p>\n

\u65e2\u7136IMC\u662f\u4e00\u79cd\u5316\u5b66\u53cd\u5e94\u540e\u7684\u5206\u5b50\u7ec4\u6210\uff08IMC\u4e5f\u53ef\u4ee5\u900f\u8fc7\u5e38\u6e29\u6269\u6563\u5f62\u6210\uff0c\u4f46\u901f\u5ea6\u5f88\u6162\uff09\uff0c\u6240\u4ee5\u4e00\u822cIMC\u7684\u5f62\u6210\u5fc5\u987b\u7ed9\u4e88\u80fd\u91cf\u624d\u80fd\u52a0\u901f\u5176\u8fdb\u884c\uff0c\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4f55\u9521\u818f\u5728\u710a\u63a5\u8fc7\u7a0b\u4e2d\u9700\u8981\u52a0\u70ed\u7684\u539f\u56e0\uff0c\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4f55\u9521\u818f\u5728\u710a\u63a5\u8fc7\u7a0b\u4e2d\u9700\u8981\u52a0\u70ed\u7684\u539f\u56e0\uff0c\u800c\u4e14\u9521\u818f\u7684\u6210\u5206\u4e2d\u53ea\u6709\u7eaf\u9521(Sn)\u624d\u4f1a\u4e0e\u94dc\u57fa\u5730<\/a>\uff08\u4f8b\u5982OSP, I-Ag, I-Sn\u8868\u9762\u5904\u7406\u7684\u677f\u5b50\uff09\u6216\u662f\u954d\u57fa\u5730<\/a>\uff08ENIG\u8868\u9762\u5904\u7406\u7684\u677f\u5b50\uff09\u5728\u5f3a\u70ed\u4e2d\u53d1\u751f\u6269\u6563\u53cd\u5e94\uff0c\u8fdb\u800c\u751f\u6210\u7262\u56fa\u7684\u754c\u9762\u6027IMC\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<\/font>\u770b\u5230\u76dc\u6587\u7db2\u7ad9\u53ef\u4ee5\u767e\u5ea6\u8209\u5831<\/font>\uff09<\/font><\/p>\n<\/blockquote>\n

\n

2. \u5408\u91d1(alloy)\u3011\u4e0e\u3010\u754c\u9762\u91d1\u5c5e\u5171\u5316\u7269(Intermetallic Compound)\u3011\u6709\u4f55\u5dee\u522b\uff1f<\/font><\/p>\n<\/h4>\n

\n

\u754c\u9762\u91d1\u5c5e\u5316\u5408\u7269<\/font><\/strong>\u662f\u4e24\u79cd\u4ee5\u4e0a\u91d1\u5c5e\u5143\u7d20\u4ee5\u300c\u56fa\u5b9a\u6bd4\u4f8b<\/font><\/strong>\u300d\u6240\u5f62\u6210\u7684\u5316\u5408\u7269\uff0c\u662f\u4e00\u79cd\u300c\u5316\u5b66\u53cd\u5e94<\/font><\/strong>\u300d\u540e\u7684\u7ed3\u679c\uff0c\u5c5e\u4e8e\u7eaf\u7269\u8d28\u3002\u6bd4\u5982\u8bf4Cu6<\/sub>Sn5<\/sub>\u3001Ni3<\/sub>Sn4<\/sub>\u3001AuSn4<\/sub>…\u7b49\u8fd9\u6837\u7684\u7269\u8d28\u3002<\/font><\/font><\/p>\n

\u800c\u5408\u91d1(alloy)<\/font><\/strong>\u5219\u662f\u4e24\u79cd\u4ee5\u4e0a\u91d1\u5c5e\u7684\u6df7\u5408\u7269<\/font><\/strong>\uff0c\u5176\u6bd4\u4f8b\u5e76\u65e0\u56fa\u5b9a\uff0c\u53ef\u4ee5\u968f\u65f6\u8c03\u6574\uff0c\u53ea\u662f\u5747\u5300\u7684\u5c06\u4e0d\u540c\u7684\u5143\u7d20\u6df7\u5408\u5728\u4e00\u8d77\u5c31\u53ef\u4ee5\u4e86\u3002<\/font><\/p>\n

\u6240\u4ee5\u4f60\u53ef\u4ee5\u8bf4\u7537\u4eba\u4e0e\u5973\u4eba\u6df7\u5728\u4e00\u8d77\u79f0\u4e4b\u4e3a\u5408\u91d1<\/font><\/strong><\/span>\uff1b\u800c\u7537\u5973\u7ed3\u5408\u540e\u6240\u751f\u4e0b\u7684\u5c0f\u5b69\u5c31\u79f0\u4e3a\u5316\u5408\u7269<\/font><\/strong><\/span>\u3002\u8fd9\u6837\u6bd4\u55bb\u4f1a\u4e0d\u4f1a\u88ab\u6253\u554a\uff01<\/font><\/p>\n<\/blockquote>\n

3. \u65e2\u7136\u79f0\u4e3a\u3010\u9521\u818f\u3011\uff0c\u4e3a\u4f55\u8fd8\u6709\u5176\u4ed6\u7684\u91d1\u5c5e\u6210\u4efd\u5728\u91cc\u9762\uff1f<\/font><\/font><\/h2>\n
\n

\u8fd9\u662f\u56e0\u4e3a\u7eaf\u9521\u7684\u7194\u70b9\u9ad8\u8fbe232\u00b0C\uff0c\u4e0d\u6613\u7528\u4e8e\u4e00\u822c\u7684PCBA\u7ec4\u88c5\u710a\u63a5\uff0c\u6216\u8005\u8bf4\u76ee\u524d\u7684\u7535\u5b50\u5143\u4ef6\u65e0\u6cd5\u8fbe\u5230\u8fd9\u6837\u7684\u9ad8\u6e29\uff0c\u6240\u4ee5\u5fc5\u987b\u4ee5\u9521\u4e3a\u57fa\u7840\uff0c\u7136\u540e\u52a0\u5165\u5176\u4ed6\u5408\u91d1\u710a\u6599\u6765\u964d\u4f4e\u5176\u7194\u70b9\uff0c\u4ee5\u8fbe\u5230\u53ef\u4ee5\u91cf\u4ea7\u5e76\u8282\u7701\u80fd\u6e90\u7684\u4e3b\u8981\u76ee\u7684\uff0c\u5176\u6b21\u8981\u76ee\u7684\u662f\u67d0\u4e9b\u91d1\u5c5e\u53ef\u4ee5\u6539\u5584\u710a\u70b9\u7684\u97e7\u5ea6(Toughness)\u4e0e\u5f3a\u5ea6(Strength)\u3002<\/font><\/p>\n

\u6bd4\u5982\u8bf4\u52a0\u5165\u5c11\u91cf\u7684\u94f6\u4e0e\u94dc\u4f5c\u6210SAC305\uff0c\u5176\u5171\u7194\u70b9\u5c31\u53ef\u4ee5\u964d\u5230217\u00b0C\u3002\u52a0\u5165\u94dc\u53ca\u954d\u4f5c\u6210SCNi\uff0c\u5176\u5171\u7194\u70b9\u5c31\u4f1a\u53d8\u6210227\u00b0C\u3002\u8fd9\u662f\u4e2a\u5f88\u6709\u8da3\u7684\u9898\u76ee\uff0c\u4e3a\u4ec0\u4e48\u539f\u672c\u4e24\u4e2a\u7194\u70b9\u90fd\u5f88\u9ad8\u7684\u91d1\u5c5e\uff0c\u4ee5\u4e00\u5b9a\u6bd4\u7387\u6df7\u5408\u5728\u4e00\u8d77\u4e4b\u540e\u5176\u300c\u5171\u7194\u70b9\u300d\u53cd\u800c\u4f1a\u5927\u5927\u964d\u4f4e\uff0c\u6709\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u5148\u627e<\/font>\u9521\u94c5\u7684\u4e8c\u5143\u5e73\u8861\u91d1\u76f8\u56fe<\/font><\/font><\/a>\u6765\u53c2\u8003\u4e00\u4e0b\u3002<\/font><\/p>\n

\u5ef6\u4f38\u9605\u8bfb\uff1a\u9521\u818f\u4e2d\u6dfb\u52a0\u94dc\u94f6\u950c\u9511\u94cb\u94df\u7b49\u5fae\u91cf\u91d1\u5c5e\u7684\u76ee\u7684\u4e3a\u4f55\uff1f<\/a><\/font><\/p>\n<\/blockquote>\n

4. \u7ecf\u5e38\u770b\u5230IMC\u4e2d\u6709Cu6<\/sub>Sn5<\/sub>\u3001Ni3<\/sub>Sn4<\/sub>\u3001Cu3<\/sub>Sn\u3001AuSn4<\/sub>\u3001Ag3<\/sub>Sn\u4e0ePdSn4<\/sub>\u7684\u5316\u5b66\u5f0f\uff0c\u8bf7\u95ee\u8fd9\u4e9b\u5316\u5b66\u5f0f\u7684\u5f62\u6210\u4e0e\u5730\u70b9\uff1f<\/strong><\/font><\/font><\/h2>\n
\n

\"PCB-IMC\"\u94dc\u57fa\u5730<\/font><\/strong>\u7684\u8868\u9762\u5904\u7406PCB\uff0c\u5982OSP(\u6709\u673a\u4fdd\u710a\u819c),<\/a> I-Ag(\u6d78\u9540\u94f6), I-Sn(\u6d78\u9540\u9521), HASL(\u55b7\u9521)<\/a>\u4e0e\u9521\u818f\u7684\u710a\u63a5\uff0c\u5728\u9ad8\u70ed\u7684\u56de\u710a\u7089\u4e2d\u4f1a\u5f62\u6210\u826f\u6027IMC\u7684Cu6<\/sub>Sn5<\/sub>\u5316\u5408\u7269\uff0c\u4f46\u662f\u968f\u7740\u65f6\u95f4\u7684\u8001\u5316\uff0c\u6216PCB\u901a\u8fc7\u56de\u710a\u7089\u8fc7\u4e45\uff0c\u5c31\u4f1a\u4eceCu6<\/sub>Sn5<\/sub>\u6162\u6162\u518d\u6f14\u5316\u6210\u52a3\u6027IMC\u7684Cu3<\/sub>Sn\u3002<\/font><\/p>\n

Cu6<\/sub>Sn5<\/sub>\u57fa\u672c\u4e0a\u662f\u7531Cu\u4e0eSn\u6db2\u6001\u53cd\u5e94\u6240\u751f\u6210\uff0c\u4f1a\u6700\u5148\u751f\u957f\u5728\u94dc\u57fa\u5730\u4e0e\u710a\u9521\u4e4b\u95f4\uff0c\u800cCu3<\/sub>Sn\u57fa\u672c\u4e0a\u5219\u662f\u4ece\u5df2\u751f\u6210\u7684Cu6<\/sub>Sn5<\/sub>\u4e0eCu\u56fa\u6001\u53cd\u5e94\u6240\u751f\u6210\uff0c\u6240\u4ee5\u4e00\u822c\u957f\u5728Cu\u4e0eCu6<\/sub>Sn5<\/sub>\u7684\u754c\u9762\u5904\u3002<\/font><\/p>\n

\u954d\u57fa\u5730<\/font><\/strong>\u7684\u8868\u9762\u5904\u7406PCB\uff0c\u5982<\/font>ENIG<\/font><\/a>, ENXG, \u4e0eENEPIG\uff0c\u7ecf\u8fc7\u9ad8\u70ed\u56de\u710a\u7089\u4e0e\u9521\u818f\u7ed3\u5408\u540e\u4f1a\u751f\u6210\u826f\u6027IMC\u7684Ni3<\/sub>Sn4<\/sub>\u3002<\/font><\/p>\n

\u91d1(Au)\u3001\u94f6(Ag)\u3001\u94af(Pd)\u4e5f\u4f1a\u4e0e\u9521(Sn)\u5f62\u6210AuSn4<\/sub>\u3001\u8ddfAg3<\/sub>Sn\u4e0ePdSn4<\/sub>\u7b49\u5316\u5408\u7269\uff0c\u4f46\u5374\u662f\u6e38\u8d70\u5f0f\u7684IMC\uff0c\u8fd9\u4e9bIMC\u5982\u679c\u7559\u5b58\u5728\u710a\u63a5\u7684\u754c\u9762\u5904\u901a\u5e38\u5bf9\u710a\u70b9\u7684\u5f3a\u5ea6\u662f\u6709\u5bb3\u800c\u65e0\u5229\uff0c\u710a\u57ab\u4e0a\u7684\u91d1\u4e0e\u94f6\u7684\u6700\u5927\u4f5c\u7528\u5c31\u662f\u4fdd\u62a4\u5e95\u954d\u4e0e\u5e95\u94dc\u514d\u4e8e\u4e0e\u7a7a\u6c14\u63a5\u89e6\u751f\u9508\u800c\u5df2\uff0c\u91d1\u4e0e\u94f6\u8d8a\u539a\u8005\uff0c\u710a\u70b9\u5f3a\u5ea6\u5c31\u8d8a\u5f31\uff0c\u4f46\u662f\u4e0d\u80fd\u8584\u5230\u65e0\u6cd5\u5168\u9762\u8986\u76d6\u4f4f\u5e95\u954d\u53ca\u5e95\u94dc\uff0c\u5426\u5219\u5c31\u65e0\u6cd5\u4fdd\u62a4\u5e95\u954d\u6216\u5e95\u94dc\u4e86\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<\/font>\u770b\u5230\u76dc\u6587\u7db2\u7ad9\u53ef\u4ee5\u767e\u5ea6\u8209\u5831<\/font>\uff09<\/font><\/p>\n<\/blockquote>\n

5. \u5404\u79cdIMC\u7684\u5f3a\u5ea6\u4e3a\u4f55\uff1f<\/font><\/font><\/h2>\n
\n