<\/p>\n

\u4f55\u8b02SMT\u300c\u7d05\u81a0\u300d\u88fd\u7a0b\uff1f<\/strong><\/font>\u5176\u5be6\u5176\u6b63\u78ba\u540d\u7a31\u61c9\u8a72\u662fSMT\u300c<\/font>\u9ede\u81a0<\/font><\/strong>\u300d\u88fd\u7a0b\uff0c\u56e0\u70ba\u5927\u90e8\u5206\u7684\u81a0\u90fd\u662f\u7d05\u8272\u7684\uff0c\u6240\u4ee5\u624d\u4fd7\u7a31\u300c\u7d05\u81a0\u300d\uff0c\u5be6\u969b\u4e0a\u53e6\u5916\u4e5f\u6709\u9ec3\u8272\u7684\u81a0\uff0c\u9019\u5c31\u8ddf\u6211\u5011\u7d93\u5e38\u7a31\u96fb\u8def\u677f\u8868\u9762\u7684\u300csolder mask<\/a>\u300d\u70ba\u300c\u7da0\u6f06\u300d\u662f\u4e00\u6a23\u7684\u9053\u7406\u3002<\/font><\/p>\n

\u53c3\u8003\u6587\u7ae0\u6700\u4e0a\u9762\u7684\u5716\u7247\u8aaa\u660e\uff0c\u53ef\u4ee5\u767c\u73fe\u96fb\u963b\u53ca\u96fb\u5bb9\u9019\u4e9b\u5c0f\u96f6\u4ef6\u7684\u4e0b\u9762\u6b63\u4e2d\u9593\u90fd\u6709\u4e00\u5718\u7d05\u8272\u7684\u81a0\u72c0\u7269\u9ad4\uff0c\u9019\u500b\u5c31\u662f\u7d05\u81a0\uff0c\u5176\u6700\u521d\u88ab\u8a2d\u8a08\u51fa\u4f86\u7684\u76ee\u7684\u662f\u70ba\u4e86\u628aSMD<\/a>\u96f6\u4ef6\u9ecf\u5728\u96fb\u8def\u677f\u4e0a\uff0c\u7136\u5f8c\u8b93\u96fb\u8def\u677f\u53ef\u4ee5\u7d93\u904e\u6ce2\u710a(wave soldering)<\/a>\u7210\uff0c\u8b93\u96f6\u4ef6\u53ef\u4ee5\u6cbe\u932b\u4e26\u8207\u96fb\u8def\u677f\u4e0a\u7684\u710a\u588a\u63a5\u5408\uff0c\u53c8\u4e0d\u81f3\u65bc\u6389\u843d\u5230\u6efe\u71d9\u7684\u6ce2\u710a\u932b\u7210\u4e4b\u4e2d\u3002<\/font><\/p>\n

\u7576\u521d\u767c\u5c55\u51fa\u9019\u7a2e\u7d05\u81a0\u88fd\u7a0b\u662f\u56e0\u70ba\u7576\u6642\u9084\u6709\u5f88\u591a\u96fb\u5b50\u96f6\u4ef6\u7121\u6cd5\u5f9e\u539f\u672c\u7684\u63d2\u4ef6(HTD, Through Hole Device)\u5c01\u88dd\u99ac\u4e0a\u8f49\u63db\u5230\u8868\u9762\u8cbc\u710a(SMD)<\/a>\u7684\u5c01\u88dd\u3002\u60f3\u50cf\u4e00\u4e0b\u4e00\u584a\u96fb\u8def\u677f\u4e0a\u9762\u6709\u4e00\u534aHTD\u96f6\u4ef6\uff0c\u53e6\u5916\u4e00\u534a\u662fSMD\u96f6\u4ef6\uff0c\u4f60\u8a72\u5982\u4f55\u5b89\u7f6e\u4e9b\u96f6\u4ef6\u8b93\u5b83\u5011\u90fd\u53ef\u4ee5\u88ab\u81ea\u52d5\u710a\u63a5\u5230\u677f\u5b50\u4e0a\u5462\uff1f\u4e00\u822c\u7684\u4f5c\u6cd5\u6703\u628a\u6240\u6709\u7684THD\u8207SMD\u96f6\u4ef6\u90fd\u8a2d\u8a08\u5728\u96fb\u8def\u677f\u7684\u540c\u4e00\u9762\uff0cSMD\u96f6\u4ef6\u7528\u932b\u818f\u5370\u5237\u8d70\u56de\u710a\u7210\u710a\u63a5\uff0c\u800c\u5269\u4e0b\u7684THD\u96f6\u4ef6\u56e0\u70ba\u6240\u6709\u710a\u8173\u90fd\u9732\u5728\u96fb\u8def\u677f\u7684\u53e6\u5916\u4e00\u9762\uff0c\u6240\u4ee5\u53ef\u4ee5\u7528\u6ce2\u710a\u932b\u7210\u88fd\u7a0b\u4e00\u6b21\u628a\u6240\u6709THD\u710a\u8173\u90fd\u710a\u63a5\u8d77\u4f86\u3002<\/font><\/p>\n

\n

\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>5\u7a2e\u96fb\u8def\u677f\u4f48\u7dda(PCB layout)\u8a2d\u8a08\u524d\u5fc5\u9808\u5148\u8003\u616e\u6e05\u695a\u7684\u7d44\u88dd\u710a\u63a5\u751f\u7522\u5de5\u85dd<\/font><\/a><\/font><\/p>\n<\/blockquote>\n

<\/p>\n

\u5f8c\u4f86\u6709\u8070\u660e\u7684\u5de5\u7a0b\u5e2b\u60f3\u5230\u4e86\u4e00\u500b\u53ef\u4ee5\u7bc0\u7701\u96fb\u8def\u677f\u7a7a\u9593\u7684\u65b9\u6cd5\uff0c\u5c31\u662f\u60f3\u8fa6\u6cd5\u5728\u539f\u672c\u53ea\u6709THD\u96f6\u4ef6\u8173\u800c\u6c92\u6709\u4efb\u4f55\u96f6\u4ef6\u7684\u90a3\u4e00\u9762\u653e\u4e0a\u96f6\u4ef6\uff0c\u53ef\u662f\u5927\u591a\u6578\u7684THD\u96f6\u4ef6\u56e0\u70ba\u672c\u9ad4\u6709\u592a\u591a\u7684\u7e2b\u9699\uff0c\u6216\u662f\u96f6\u4ef6\u6750\u6599\u7121\u6cd5\u627f\u53d7\u932b\u7210\u7684\u9ad8\u6eab\uff0c\u6240\u4ee5\u7121\u6cd5\u653e\u5728\u677f\u5b50\u904e\u932b\u7210\u7684\u9019\u4e00\u9762\uff0c\u800c\u4e00\u822c\u7684SMD\u96f6\u4ef6\u56e0\u70ba\u5df2\u7d93\u88ab\u8a2d\u8a08\u6210\u80fd\u5920\u627f\u53d7Reflow\u7684\u9ad8\u6eab\u4e86\uff0c\u65e2\u4f7f\u6d78\u6ce1\u5728\u6ce2\u710a\u932b\u7210\u4e2d\u4e00\u5c0f\u6bb5\u6642\u9593\u4e5f\u4e0d\u6703\u6709\u554f\u984c\uff0c\u53ef\u662f\u53ea\u5370\u5237\u932b\u818f\u662f\u6c92\u6709\u8fa6\u6cd5\u8b93SMD\u904e\u6ce2\u710a\u7210\u7684\uff0c\u56e0\u70ba\u932b\u7210\u7684\u6eab\u5ea6\u4e00\u5b9a\u6bd4\u932b\u818f\u7684\u7194\u9ede\u6eab\u5ea6\u4f86\u5f97\u9ad8\uff0c\u9019\u6a23SMD\u96f6\u4ef6\u5c31\u6703\u56e0\u70ba\u932b\u818f\u878d\u5316\u800c\u6389\u9032\u932b\u7210\u69fd\u5167\u3002<\/font><\/p>\n

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

\u7576\u7136\uff0c\u5f8c\u4f86\u53c8\u6709\u5de5\u7a0b\u5e2b\u60f3\u5230\u4e86\u53ef\u4ee5\u5229\u7528\u71b1\u56fa\u578b<\/span>\u7684\u81a0\u4f86\u9ecf\u8457\u4f4fSMD\u96f6\u4ef6\u65bc\u96fb\u8def\u677f\u4e0a\uff0c\u9019\u7a2e\u81a0\u52a0\u71b1\u5f8c\u5c31\u6703\u56fa\u5316\uff0c\u525b\u597d\u53ef\u4ee5\u4f7f\u7528Reflow\u7210\u4f86\u52a0\u71b1\uff0c\u9019\u6a23\u5c31\u53ef\u4ee5\u89e3\u6c7a\u96f6\u4ef6\u6389\u843d\u932b\u69fd\u7684\u554f\u984c\uff0c\u7d05\u81a0\u4e5f\u56e0\u6b64\u8a95\u751f\uff0c\u6240\u4ee5\u96fb\u8def\u677f\u7684\u5c3a\u5bf8\u53c8\u9032\u4e00\u6b65\u7e2e\u5c0f\u4e86\uff0c\u4e0a\u9762\u7684\u5716\u7247\u53ef\u4ee5\u8aaa\u660eSMD\u4e0b\u9762\u9ede\u8457\u7d05\u81a0\u904e\u6ce2\u710a\u7210\u8207THD\u7684pin\u8173\u5171\u5b58\u65bc\u96fb\u8def\u677f\u7684\u540c\u4e00\u9762\u3002<\/font><\/p>\n

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

\u4e4b\u6240\u4ee5\u63a1\u7528\u71b1\u56fa\u578b\u7684\u7d05\u81a0\u662f\u70ba\u4e86\u907f\u514d\u5df2\u7d93\u56fa\u5316\u7684\u81a0\u5728\u6d41\u7d93\u6ce2\u710a\u7210\u6642\u91cd\u65b0\u7194\u878d\uff0c\u9019\u6a23\u5c31\u5931\u53bb\u4e86\u9ede\u7d05\u81a0\u7684\u76ee\u7684\u4e86\uff0c\u6240\u4ee5\u5982\u679c\u4f60\u554f\u300c\u7d05\u81a0\u53ef\u4ee5\u50cf\u932b\u818f\u4e00\u6a23\u91cd\u8907\u4f7f\u7528\u55ce\uff1f<\/font><\/strong>\u300d\u7b54\u6848\u662f\u5426\u5b9a\u7684\u3002<\/font><\/p>\n

\u90a3\u662f\u4e0d\u662f\u6240\u6709\u7684SMD\u96f6\u4ef6\u90fd\u53ef\u4ee5\u9ede\u7d05\u81a0\u904e\u6ce2\u710a\u7210\u5462\uff1f<\/strong><\/font><\/font><\/p>\n

\u5f88\u4e0d\u5e78\u7684\uff0c\u53ea\u6709\u4e00\u4e9b\u96d9\u6392\u8173\u5f80\u5916\u4f38\u7684IC\u96f6\u4ef6\u6216\u662f\u710a\u588a\u5728\u5169\u7aef\u7684\u96f6\u4ef6\uff08\u5982\u96fb\u963b\u3001\u96fb\u5bb9\uff09\u53ef\u4ee5\u8d70\u6ce2\u710a\u88fd\u7a0b\uff0c\u4e5f\u6709\u898b\u904eQFP\u9019\u985e\u56db\u908a\u90fd\u6709\u8173\u7684IC\u8d70\u6ce2\u710a\u7684\uff0c\u4f46\u662f\u5176\u8173\u9593\u8ddd\u5fc5\u9808\u8981\u8db3\u5920\u5927\u624d\u53ef\u4ee5\uff0c\u5426\u5247\u6703\u767c\u751f\u77ed\u8def\u554f\u984c\u3002<\/font><\/p>\n

\u4e00\u822c\u7684\u9023\u63a5\u5668\u6216\u662f\u6709\u7e2b\u9699\u7684\u96f6\u4ef6\u90fd\u4e0d\u53ef\u4ee5\u8d70\u6ce2\u710a\u88fd\u7a0b\uff0c\u56e0\u70ba\u932b\u6db2\u6703\u6c61\u67d3\u5176\u63a5\u89f8\u9ede\u6216\u5f71\u97ff\u96f6\u4ef6\u7279\u6027\uff0c\u800c\u4e14\u592a\u5c0f\u7684\u96f6\u4ef6\uff08\u4e00\u822c0402\u4ee5\u4e0b\uff09\u5c31\u6703\u56e0\u70ba\u9593\u8ddd\u592a\u5c0f\u5bb9\u6613\u7522\u751f\u932b\u77ed\u8def\u800c\u7121\u6cd5\u8d70\u6ce2\u710a\u932b\u7210\u554f\u984c\u3002<\/font><\/p>\n

\u66f4\u591a\u7684\u6ce2\u710a\u8cc7\u6599\u53ef\u4ee5\u53c3\u8003\u3010<\/font>SMD\u96f6\u4ef6\u53ef\u4ee5\u8d70\u6ce2\u710a(wave soldering)\u88fd\u7a0b\uff1f<\/font><\/a>\u3011\u4e00\u6587\u3002<\/font><\/p>\n

\u90a3\u7d05\u81a0\u662f\u5982\u4f55\u88ab\u653e\u7f6e\u6216\u9ede\u5230\u96fb\u8def\u677f\u4e0a\u7684\u5462\uff1f<\/strong><\/font><\/p>\n

\u65e9\u671f\u7d05\u81a0\u88fd\u7a0b\u8208\u76db\u7684\u6642\u5019\uff0c\u5728SMT\u7522\u7dda\u6703\u5b89\u88dd\u5c08\u9580\u7684\u9ede\u81a0\u6a5f(dispenser)\u4f86\u9ede\u7d05\u81a0\uff0c\u90a3\u6bb5\u6642\u671f\u5076\u800c\u6703\u6709\u7d05\u81a0\u8207\u932b\u818f\u96d9\u88fd\u7a0b\u51fa\u73fe\uff0c\u5176\u76ee\u7684\u662f\u70ba\u4e86\u964d\u4f4e\u6ce2\u710a\u6642\u9670\u5f71\u6548\u61c9(shadow effect)\u9020\u6210\u7a7a\u710a\u7684\u554f\u984c\u3002<\/font><\/p>\n

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

\u5f8c\u4f86\u5927\u90e8\u5206\u96fb\u5b50\u96f6\u4ef6\u6f38\u6f38\u6539\u6210\u4e86SMD\u5c01\u88dd\u5f8c\uff0c\u5927\u90e8\u5206\u7684\u9ede\u81a0\u6a5f\u5c31\u88ab\u5f9eSMT\u7dda\u79fb\u9664\uff0c\u5076\u6709\u9700\u8981\u7d05\u81a0\u6642\u4e5f\u53ef\u4ee5\u63a1\u7528\u92fc\u677f\u5370\u5237\u7684\u65b9\u5f0f\u4f86\u9054\u6210\uff0c\u53ea\u662f\u9019\u9ebc\u4e00\u4f86\u5c31\u6c92\u6709\u8fa6\u6cd5\u540c\u6642\u5370\u5237\u932b\u818f\u8207\u7d05\u81a0\u4e86\u3002\u4e0d\u904e\u65b9\u6cd5\u662f\u4eba\u60f3\u51fa\u4f86\u7684\uff0c\u4e5f\u6709\u4eba\u4f7f\u7528\u6bd4\u8f03\u539a\u7684\u92fc\u677f\uff083D\u7acb\u9ad4\u92fc\u677f\uff09\uff0c\u5728\u539f\u672c\u5370\u5237\u932b\u818f\u7684\u5730\u65b9\u6316\u51fa\u9632\u7a7a\u6d1e\u907f\u8b93\u958b\u4f86\uff0c\u7136\u5f8c\u5370\u5237\u7d05\u81a0\uff0c\u53ea\u662f\u6bd4\u8f03\u9ebb\u7169\uff0c\u7d05\u81a0\u7684\u91cf\u4e5f\u6bd4\u8f03\u4e0d\u6613\u63a7\u5236\u3002<\/font><\/p>\n

<\/p>\n

\u90a3\u7d05\u81a0\u9664\u4e86\u7528\u4f86\u56fa\u5b9a\u96f6\u4ef6\u901a\u904e\u6ce2\u710a\u5916\uff0c\u5728\u96fb\u8def\u677f\u4e0a\u9084\u53ef\u4ee5\u6709\u4ec0\u9ebc\u7528\u9014\u5462\uff1f<\/strong><\/font><\/p>\n

\u5c31\u56e0\u70ba\u7d05\u81a0\u5177\u6709\u826f\u597d\u7684\u56fa\u5b9a\u4f5c\u7528\uff0c\u6240\u4ee5\u6709\u6642\u5019\u6703\u88ab\u7528\u4f86\u5f37\u5316\u96f6\u4ef6\u56fa\u5b9a\u5728\u96fb\u8def\u677f\u4e0a\u7684\u80fd\u529b\u8f14\u52a9\uff0c\u6bd4\u5982\u8aaa\u6709\u4e9b\u96f6\u4ef6\u5728\u6454\u843d\u7684\u6e2c\u8a66\u7576\u4e2d\u5bb9\u6613\u6389\u843d\uff0c\u5c31\u6703\u6709\u5de5\u7a0b\u5e2b\u60f3\u7528\u7d05\u81a0\u4f86\u589e\u52a0\u96f6\u4ef6\u9ecf\u8457\u5728\u96fb\u8def\u677f\u7684\u5f37\u5ea6\uff1b\u6709\u4e9b\u5c0d\u5916\u7684\u9023\u63a5\u5668\u6709\u6642\u5019\u6703\u88ab\u5ba2\u6236\u62b1\u6028\u5bb9\u6613\u88ab\u63a8\u6389\uff0c\u4e5f\u6703\u6709\u5de5\u7a0b\u5e2b\u60f3\u7528\u7d05\u81a0\u4f86\u88dc\u5f37\uff1b\u66f4\u770b\u904e\u6709\u5de5\u7a0b\u5e2b\u7528\u7d05\u81a0\u9ede\u5728BGA\u7684\u56db\u500b\u89d2\u843d\u4f86\u964d\u4f4e\u932b\u88c2\u7684\u4e0d\u826f\u7387\uff1b\u518d\u4f86\uff0c\u56e0\u70ba\u73fe\u5728\u7684\u96fb\u8def\u677f\u5df2\u7d93\u662f\u96d9\u9762SMT\u88fd\u7a0b\u4e86\uff0c\u4e00\u4e9b\u6bd4\u8f03\u91cd\u7684\u96f6\u4ef6\u5982\u679c\u64fa\u653e\u5728\u7b2c\u4e00\u9762\u904e\u7210\uff0c\u5728\u7b2c\u4e8c\u6b21\u904e\u56de\u710a\u7210\u6642\u6703\u56e0\u70ba\u91cd\u529b\u7684\u95dc\u4fc2\u800c\u5bb9\u6613\u6389\u843d\uff0c\u4e8b\u5148\u9ede\u4e0a\u7d05\u81a0\u5c31\u53ef\u4ee5\u907f\u514d\u96f6\u4ef6\u6389\u843d\u7684\u98a8\u96aa\u3002<\/font><\/p>\n

\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a\u70ba\u4ec0\u9ebcSMT\u4e8c\u6b21\u56de\u710a\u6642\u7b2c\u4e00\u9762\u96f6\u4ef6\u4e0d\u6703\u6389\u843d\uff1f\u518d\u56de\u710a\u7194\u932b\u6eab\u5ea6\u6703\u5347\u9ad8?<\/a><\/font><\/p>\n

\u4e0d\u904e\u9019\u4e9b\u4f7f\u7528\u7d05\u81a0\u88fd\u7a0b\u5927\u591a\u53ea\u80fd\u6b78\u70ba\u300c\u77ed\u671f\u5c0d\u7b56\u300d\uff0c\u4ee5\u751f\u7522\u6548\u7387\u4f86\u8aaa\uff0c\u589e\u52a0\u4e00\u500b\u5de5\u5e8f\u5c31\u6703\u591a\u589e\u52a0\u4e00\u5b9a\u7684\u5de5\u6642\uff0c\u4e5f\u5c31\u662f\u589e\u52a0\u6210\u672c\uff0c\u9577\u671f\u5c0d\u7b56\u9084\u662f\u8981\u7528\u8a2d\u8a08\u7684\u65b9\u6cd5\u4f86\u53bb\u9664\u9019\u7a2e\u9ede\u7d05\u81a0\u7684\u63aa\u65bd\u3002<\/font><\/p>\n

---

\n

\u5ef6\u4f38\u95b1\u8b80\uff1a <\/font>
\u5408\u6210\u77f3\u904e\u7210\u6258\u76e4(Reflow carrier)<\/font><\/a>
\u96fb\u5b50\u88fd\u9020\u5de5\u5ee0\u5982\u4f55\u7522\u51fa\u4e00\u7247\u96fb\u8def\u677f<\/font><\/a>
\u6ce2\u710a(Wave soldering)\u6642\u96f6\u4ef6\u64fa\u653e\u7684\u8a2d\u8a08\u898f\u7bc4<\/font><\/a>
\u9078\u64c7\u6027\u6ce2\u710a\u7684\u4f7f\u7528\u689d\u4ef6(selective wave soldering)<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u4f55\u8b02SMT\u300c\u7d05\u81a0\u300d\u88fd\u7a0b\uff1f\u5176\u5be6\u5176\u6b63\u78ba\u540d\u7a31\u61c9\u8a72\u662fSM …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[115,16,3,4],"tags":[130],"aioseo_notices":[],"views":47444,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3413"}],"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=3413"}],"version-history":[{"count":2,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3413\/revisions"}],"predecessor-version":[{"id":10007,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/3413\/revisions\/10007"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=3413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=3413"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=3413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}