{"id":5718,"date":"2016-09-26T08:25:00","date_gmt":"2016-09-26T00:25:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=5718"},"modified":"2024-01-28T20:49:59","modified_gmt":"2024-01-28T12:49:59","slug":"sac305-2nd-reflow-temperature","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2016\/09\/sac305-2nd-reflow-temperature\/","title":{"rendered":"\u70ba\u4ec0\u9ebc\u96d9\u9762SMT\u7b2c\u4e8c\u6b21\u56de\u710a\u6642\u7b2c\u4e00\u9762\u4e0d\u6703\u6389\u4ef6\uff1f\u518d\u56de\u710a\u7194\u932b\u6eab\u5ea6\u6703\u5347\u9ad8?"},"content":{"rendered":"

\u70ba\u4ec0\u9ebc\u96d9\u9762\u96fb\u8def\u677fSMT\u7b2c\u4e8c\u6b21\u56de\u710a(2nd<\/sup> reflow)\u6642\u5df2\u7d93\u6253\u5728\u7b2c\u4e00\u9762\u7684\u96fb\u5b50\u96f6\u4ef6\u4e0d\u6703\u56e0\u70ba\u7b2c\u4e8c\u6b21\u518d\u904e\u4e00\u6b21\u56de\u710a\u7210\u7684\u76f8\u540c\u9ad8\u6eab\u800c\u91cd\u65b0\u878d\u932b\u6389\u843d\u5462\uff1f\u4e00\u822c\u7121\u925bSAC305\u932b\u818f\u65bc\u7b2c\u4e8c\u6b21\u56de\u6d41\u710a\u6642\u7194\u932b\u6eab\u5ea6\u53c8\u6703\u5347\u9ad8\u591a\u5c11\uff1f\u55ef\uff01\u6703\u4e0d\u6703\u662f\u56e0\u70ba\u4eba\u5bb6\u7b2c\u4e00\u9762\u7684\u96f6\u4ef6\u6bd4\u8f03\u8001\u5be6\u4e0d\u559c\u6b61\u9ebb\u7169\u5225\u4eba\u5462\uff01\u7576\u7136\uff0c\u9019\u53ea\u662f\u500b\u73a9\u7b11\u8a71\u3002<\/font><\/font><\/p>\n

\u70ba\u4ec0\u9ebc\u96fb\u8def\u677fSMT\u5df2\u7d93\u6253\u5728\u7b2c\u4e00\u9762\u4ef6\u7684\u96f6\u4ef6\uff0c\u65bc\u677f\u5b50\u6253\u7b2c\u4e8c\u9762\u904e\u7b2c\u4e8c\u6b21\u904e\u56de\u710a\u7210\u6642\uff0c\u6253\u5728\u7b2c\u4e00\u9762\u677f\u5b50\u4e0a\u7684\u96fb\u5b50\u96f6\u4ef6\u4e0d\u6703\u56e0\u710a\u932b\u91cd\u65b0\u878d\u5316\u53ca\u91cd\u529b\u6389\u843d\u4e0b\u4f86\uff1f\u4e00\u822c\u96fb\u8def\u677f\u7d93\u904e\u7b2c\u4e8c\u6b21\u56de\u6d41\u710a\u932b\u7210(reflow oven)\u6642\u7684\u6eab\u5ea6\u4e5f\u5e7e\u4e4e\u90fd\u662f\u4e00\u6a23\u7684\u6eab\u5ea6\uff0c\u800c\u4e14\u5927\u90e8\u5206SMT\u5de5\u7a0b\u5e2b\u4e5f\u90fd\u628a\u56de\u710a\u7684\u4e0a\u3001\u4e0b\u7210\u6eab\u8a2d\u6210\u4e00\u6a23\uff0c\u90a3\u70ba\u4ec0\u9ebc\u7b2c\u4e8c\u9762\u677f\u5b50\u4e0a\u7684\u932b\u818f\u6703\u7194\u932b\uff0c\u800c\u7b2c\u4e00\u9762\u4e0a\u5df2\u7d93\u878d\u5316\u904e\u4e00\u6b21\u7684\u932b\u818f\u4e0d\u6703\u518d\u7194\u932b\u5462\uff1f\u96e3\u9053\u932b\u818f\u5728\u4e8c\u6b21\u56de\u6d41\u710a\u6642\u7194\u932b\u7684\u6eab\u5ea6\u5347\u9ad8\u4e86\uff1f<\/font><\/p>\n

\u76f8\u4fe1\u5f88\u591a\u6478\u904eSMT(Surface Mount Technology)<\/a>\u7684\u670b\u53cb\u90fd\u6709\u9019\u6a23\u7684\u7591\u554f\uff1f\u6216\u662f\u66fe\u7d93\u88ab\u4eba\u5bb6\u8a62\u554f\u904e\u985e\u4f3c\u7684\u554f\u984c\uff1f\u4e5f\u8a31\u4f60\u96b1\u7d04\u77e5\u9053\u7b54\u6848\uff0c\u4e0d\u904e\u4f60\u771f\u7684\u77ad\u89e3\u70ba\u4ec0\u9ebc\u5df2\u7d93\u6253\u5728\u7b2c\u4e00\u9762\u7684\u96f6\u4ef6\u4e0d\u6703\u5728\u4e8c\u6b21\u56de\u710a\u7210\u4e2d\u6389\u4e0b\u4f86\u5462\uff1f\u6216\u8a31\u6709\u524d\u8f29\u544a\u8a34\u904e\u4f60\uff0c\u5df2\u7d93\u878d\u5316\u904e\u4e00\u6b21\u7684\u932b\u818f\u8981\u5728\u7b2c\u4e8c\u6b21\u56de\u710a\u6642\u518d\u5ea6\u878d\u5316\uff0c\u5176\u6eab\u5ea6\u6703\u6bd4\u65b0\u9bae\u7684\u932b\u818f\u9ad8\u51fa\u5927\u698210\u00b0C\u5de6\u53f3\uff0c\u4f46\u70ba\u4ec0\u9ebc\u5df2\u7d93\u878d\u5316\u904e\u4e00\u6b21\u7684\u932b\u818f\u8981\u518d\u6b21\u878d\u5316\u7684\u6eab\u5ea6\u5c31\u6703\u6bd4\u8f03\u9ad8\u5462\uff1f<\/font><\/p>\n

\u5176\u5be6\u5de5\u4f5c\u718a\u5c0d\u65bc\u9019\u500b\u4e5f\u4e0d\u662f\u5f88\u78ba\u5b9a\u5566\uff01\u6240\u4ee5\uff0c\u7576\u7136\u662f\u8981\u8acb\u6559\u5c08\u5bb6\u56c9\uff01\u4ee5\u4e0b\u7684\u56de\u7b54\u662f\u53bb\u8a62\u554f\u53f0\u7063\u4e00\u5bb6\u5c08\u9580\u505a\u932b\u818f\u7684\u5ee0\u5bb6\u6240\u7372\u5f97\u7684\u8a0a\u606f\uff0c\u5de5\u4f5c\u718a\u6700\u4e3b\u8981\u8a62\u554f\u95dc\u65bcSAC305\u7684\u7194\u9ede \uff1a<\/font><\/p>\n

Question:<\/font> <\/font><\/b><\/p>\n

SAC305\u7b2c\u4e00\u6b21Reflow\u7194\u9ede\u7d04\u5728217\u00b0C\uff0c\u90a3\u7b2c\u4e8c\u6b21Reflow\u7684\u7194\u9ede\u5927\u7d04\u843d\u5728\u54ea\u88e1\u5462\uff1f\u7b2c\u4e8c\u6b21Reflow\u7684\u7194\u9ede\u6703\u5347\u9ad8\u662f\u56e0\u70ba\u7d44\u6210\u6210\u4efd\u6539\u8b8a\u7684\u95dc\u7cfb\u55ce\uff1f<\/font><\/p>\n

Answer:<\/font><\/b><\/p>\n

SAC305\u7684\u7194\u9ede\u5728\u7d93\u904e\u4e00\u6b21reflow\u5f8c\uff0c\u53ef\u80fd\u6703\u56e0\u70ba\u90e8\u4efd\u7684\u710a\u932b\u5143\u7d20\uff08\u4e3b\u8981\u662f\u932b\u548c\u9285\uff0c\u800c\u300c\u9280\u300d\u5247\u5f62\u6210Ag3<\/sub>Sn\u5f8c\uff0c\u4e0d\u6703\u518d\u53c3\u8207\u5176\u4ed6\u53cd\u61c9\uff09\u8207\u710a\u588a\u6216\u96f6\u4ef6\u8173\u7684\u6750\u8cea\u5f62\u6210IMC<\/a>\u3002\u53e6\u5916\uff0c\u90e8\u4efd\u710a\u588a\u6216\u96f6\u4ef6\u8173\u7684\u5143\u7d20\u4ea6\u6703\u7194\u5165\u81f3\u710a\u9ede\u4e2d\uff0c\u56e0\u6b64\uff0c\u4f7f\u5f97\u55ae\u4e00\u710a\u9ede\u7684\u710a\u932b\u6210\u4efd\u7d44\u6210\u767c\u751f\u8b8a\u5316\uff0c\u4e0d\u518d\u662f\u539f\u4f86SAC305\u7684\u6bd4\u7387\uff0c\u6240\u4ee5\u7194\u9ede\u6703\u767c\u751f\u8b8a\u5316\u3002<\/font><\/p>\n

<\/font><\/font><\/p>\n

\u81f3\u65bc\u7194\u9ede\u8b8a\u5316\u7684\u7bc4\u570d\uff0c\u5247\u6bd4\u8f03\u96e3\u4f30\u8a08\uff0c\u56e0\u70ba\u6bcf\u7a2e\u96f6\u4ef6\u7684\u72c0\u6cc1\u4e0d\u540c\uff0c\u5373\u4f7f\u5728\u540c\u4e00\u7247PCB\u4e0a\uff0c\u4e0d\u540c\u7684\u710a\u9ede\u53ef\u80fd\u4e5f\u6703\u6709\u6240\u5dee\u7570\u3002\u53e6\u5916\uff0c\u540c\u4e00\u710a\u9ede\u4e5f\u53ef\u80fd\u56e0\u70ba\u5143\u7d20\u64f4\u6563\u72c0\u6cc1\u4e0d\u540c\uff0c\u5728\u4e0d\u540c\u4f4d\u7f6e\uff08\u4f8b\u5982QFN\u96f6\u4ef6\u8173\u4e0b\u65b9\u548c\u96f6\u4ef6\u8173\u5916\u5074\u7684\u6210\u4efd\u5206\u4f48\u6703\u6709\u5dee\u7570\uff09\u5143\u7d20\u5206\u4f48\u4e0d\u540c\u800c\u6709\u5dee\u7570\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u6bd4\u8f03\u78ba\u8a8d\u7684\u662fSAC305\u662f\u8fd1\u5171\u6676\u6750\u6599\uff0c\u56e0\u6b64\uff0c\u5c11\u91cf\u7684\u5408\u91d1\u6210\u4efd\u8b8a\u5316\uff0c\u7194\u9ede\u9084\u662f\u6703\u7531217\u00b0C\u9644\u8fd1\u958b\u59cb\u7194\u89e3(\u5171\u6676\u9ede)\uff0c\u5b8c\u5168\u7194\u89e3\u7684\u6eab\u5ea6\u5247\u6703\u63d0\u9ad8\uff0c\u63a8\u6e2c\u6574\u9ad4\u710a\u9ede\u7684\u5e73\u5747\u5b8c\u5168\u7194\u89e3\u6eab\u5ea6\u53ef\u80fd\u6703\u4e0a\u5347\u81f3225~230\u00b0C\u9644\u8fd1\u3002<\/font><\/p>\n

\u53e6\u5916\uff0c\u4e00\u822c\u4e8c\u6b21\u56de\u710a\u6642\uff0c\u7b2c\u4e00\u6b21\u56de\u710a\u7684\u710a\u9ede\u8868\u9762\u6703\u5b58\u5728\u6c27\u5316\u7269\uff0c\u4e14\u710a\u9ede\u7f3a\u5c11\u52a9\u710a\u5291\u4f5c\u7528\uff08\u52a9\u710a\u5291\u7528\u65bc\u6e05\u9664\u6c27\u5316\u819c\u7684\u80fd\u529b\u4e0d\u8db3\uff09\uff0c\u5373\u4f7f\u6eab\u5ea6\u4e0a\u5347\u81f3\u56de\u710a\u6eab\u5ea6\uff0c \u7b2c\u4e00\u6b21\u56de\u710a\u710a\u9ede\u7684\u8868\u9762\u6c27\u5316\u7269\u5f35\u529b\u4f5c\u7528\u4ea6\u6703\u652f\u6490\u4f4f\u710a\u9ede\u5f62\u72c0\uff0c\u4f7f\u5f97\u5728\u710a\u9ede\u5916\u89c0\u4e0a\u4e0d\u6703\u56e0\u70ba\u6eab\u5ea6\u9054\u5230\u710a\u932b\u7194\u9ede\u800c\u51fa\u73fe\u7194\u878d\u574d\u584c\u73fe\u8c61\u3002<\/font><\/p>\n

\u76f8\u95dc\u95b1\u8b80\uff1a
<\/font>\u4e8c\u6b21\u56de\u710a\u6642\u907f\u514d\u7b2c\u4e00\u9762\u96f6\u4ef6\u6389\u843d\u7684\u89e3\u6c7a\u65b9\u6cd5<\/font><\/a>
\u7d66\u521d\u5b78\u8005\u7684Q&A\uff1a\u95dc\u65bcSMT\u92fc\u677f\u3001\u6253\u4ef6\u9762\u9806\u5e8f\u6c7a\u5b9a\u3001DFM\u3001DFX<\/font><\/a><\/p>\n

\u4ee5\u4e0a\uff0c \u63d0\u4f9b\u7d66\u5927\u5bb6\u53c3\u8003\u3002<\/font><\/p>\n

\uff5e\u5982\u679c\u60a8\u6709\u5176\u4ed6\u898b\u89e3\uff0c\u6216\u662f\u88dc\u5145\u610f\u898b\uff0c\u6b61\u8fce\u63d0\u51fa\u60a8\u7684\u770b\u6cd5\uff5e<\/strong><\/font><\/p>\n

\n

\u4ee5\u4e0b\u70ba\u500b\u4eba\u5c0d\u65bc\u3010\u70ba\u4ec0\u9ebc\u4e8c\u6b21\u56de\u710a\u6642\u7b2c\u4e00\u9762\u96f6\u4ef6\u4e0d\u6703\u6389\u843d\uff1f\u3011\u7684\u88dc\u5145\u610f\u898b\uff1a<\/font><\/strong><\/p>\n

    \n
  1. \n
    \u5047\u8a2d\u539f\u70baSAC305\u7684\u932b\u818f\uff0c\u7d93\u904e\u7b2c\u4e00\u6b21\u56de\u710a\u878d\u932b\u5f8c\uff0c\u5176SAC305\u7684\u5408\u91d1\u6210\u4efd\u6bd4\u7387\u5df2\u7d93\u767c\u751f\u4e86\u8b8a\u5316<\/font><\/strong>\uff0c\u6bd4\u5982\u8aaa\u6709\u4e9b\u932b\u8207\u9285\uff08\u9285\u57fa\u5730\uff0c\u5982OSP<\/a>\uff09\u6216\u662f\u93b3\u8207\u932b\uff08\u93b3\u57fa\u5730\uff0c \u5982ENIG<\/a>\uff09\u6703\u751f\u6210IMC\uff0c\u53e6\u5916\uff0c\u4e0d\u8981\u5fd8\u8a18\u6700\u91cd\u8981\u7684\u300c\u9280\u300d\u4e5f\u5f62\u6210Ag3<\/sub>Sn\u7684IMC\uff0c\u9019\u4e9b\u5df2\u7d93\u5f62\u6210IMC\u7684\u5143\u7d20\u65bc\u4e8c\u6b21\u56de\u710a\u6642\u4e0d\u518d\u53c3\u8207\u878d\u932b\u7684\u53cd\u61c9\uff0c\u4e5f\u5c31\u662f\u8aaa\u710a\u932b\u4e2d\u7684\u6210\u4efd\u5df2\u7d93\u6539\u8b8a\uff0c\u4e0d\u518d\u662f\u539f\u4f86SAC305\u7684\u6bd4\u7387\uff0c\u7279\u5225\u662f\u300c\u9280\u300d\u5e7e\u4e4e\u90fd\u5df2\u7d93\u8b8a\u6210\u4e86IMC\u4e0d\u898b\u4e86\uff0c\u6240\u4ee5\u878d\u932b\u7684\u6eab\u5ea6\u5c31\u6703\u8ddf\u8457\u6539\u8b8a\u800c\u5347\u9ad8\u3002\u81f3\u65bc\u4e8c\u6b21\u56de\u710a\u7684\u878d\u932b\u6eab\u5ea6\u5347\u9ad8\u591a\u5c11\u5ea6\uff0c\u4e00\u822c\u4f86\u8aaa\u5927\u7d0410\u00b0C\u4ee5\u5167\uff0c\u500b\u4eba\u6c92\u6709\u5be6\u969b\u5be6\u9a57\u6578\u64da\uff0c\u53ea\u662f\u63a8\u4f30\u3002\u6240\u4ee5\u5982\u679c\u4e8c\u6b21\u56de\u710a\u7684\u6eab\u5ea6\u904e\u9ad8\uff0c\u9084\u662f\u53ef\u80fd\u9020\u6210\u7b2c\u4e00\u9762\u7684\u710a\u9ede\u91cd\u65b0\u7194\u878d\uff0c\u96f6\u4ef6\u53ef\u80fd\u6389\u843d\u7684\u98a8\u96aa\u3002 <\/font><\/div>\n<\/li>\n
  2. \n
    \u5df2\u7d93\u6210\u5f62\u7684\u710a\u9ede\u56e0\u70ba\u8207\u7a7a\u6c23\u63a5\u89f8\uff0c\u6240\u4ee5\u5176\u91d1\u5c6c\u8868\u9762\u6703\u5f62\u6210\u7a0b\u5ea6\u4e0d\u4e00\u7684\u6c27\u5316\u7269\u9020\u6210\u91d1\u5c6c\u8868\u9762\u80fd\u589e\u52a0\uff0c\u9593\u63a5\u5347\u9ad8\u5df2\u7d93\u6210\u5f62\u710a\u9ede\u7684\u7194\u9ede\u3002<\/font><\/div>\n<\/li>\n
  3. \n
    \u4e8c\u6b21\u56de\u710a\u6642\u7b2c\u4e00\u9762\u7684\u710a\u9ede\u5167\u7684\u300c\u52a9\u710a\u5291(Flux)<\/a><\/font><\/strong>\u300d\u5df2\u7d93\u63ee\u767c\uff0c\u4e0d\u80fd\u518d\u767c\u63ee\u5176\u964d\u4f4e\u932b\u6db2\u8868\u9762\u5f35\u529b<\/font><\/strong>\u7684\u6548\u679c\uff0c\u6240\u4ee5\u5373\u4f7f\u6709\u90e8\u4efd\u878d\u932b\u7684\u73fe\u8c61\uff0c\u710a\u9ede\u7684\u5916\u89c0\u4e0a\u4e5f\u4e0d\u6703\u56e0\u70ba\u6eab\u5ea6\u9054\u5230\u710a\u932b\u7194\u9ede\u800c\u51fa\u73fe\u7194\u878d\u574d\u584c\u73fe\u8c61\u3002\u7576\u7136\uff0c\u6eab\u5ea6\u5982\u679c\u9ad8\u51fa\u7194\u9ede\u5f88\u591a\u7576\u7136\u9084\u662f\u6703\u878d\u932b\u3002<\/font> <\/div>\n<\/li>\n<\/ol>\n

    \u4ee5\u4e0a\u50c5\u70ba\u500b\u4eba\u898b\u89e3\u3002<\/font><\/p>\n

    \n

    \u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>
    PCB\u710a\u63a5\u5f37\u5ea6\u8207IMC\u89c0\u5ff5<\/font><\/a>
    \u96f6\u4ef6\u6389\u843d\u8207\u934d\u91d1\u539a\u5ea6\u7684\u95dc\u4fc2<\/font><\/a>
    PCB\u7206\u677f\u7684\u771f\u56e0\u5256\u6790\u8207\u9632\u6b62<\/font><\/a>
    \u6d78\u91d1\u53ca\u96fb\u934d\u91d1\u5728\u96fb\u8def\u677f\u710a\u63a5\u4e2d\u6240\u626e\u6f14\u7684\u89d2\u8272<\/font><\/a>
    SMT\u8207Wave soldering\u710a\u932b\u7684\u4e2d\u6587\u7ffb\u8b6f\u8207\u89c0\u5ff5\u6f84\u6e05<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

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