{"id":9,"date":"2010-07-09T11:28:57","date_gmt":"2010-07-09T03:28:57","guid":{"rendered":"\/\/m.letratesoro.com\/2010\/07\/%e8%bf%b4%e6%b5%81%e7%84%8a%e7%9a%84%e6%ba%ab%e5%ba%a6%e6%9b%b2%e7%b7%9a-reflow-profile\/"},"modified":"2024-05-16T10:55:01","modified_gmt":"2024-05-16T02:55:01","slug":"reflow-profile","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2010\/07\/reflow-profile\/","title":{"rendered":"SMT\u56de\u6d41\u710a\u7684\u6eab\u5ea6\u66f2\u7dda(Reflow Profile)\u89e3\u8aaa\u8207\u6ce8\u610f\u4e8b\u9805"},"content":{"rendered":"<p align=\"justify\"><font size=\"4\">\u96fb\u5b50\u7522\u696d\u4e4b\u6240\u4ee5\u80fd\u5920\u84ec\u52c3\u767c\u5c55\uff0c<a href=\"\/2013\/10\/smt-surface-mount-technology\/\" rel=\"noopener\" target=\"_blank\">\u8868\u9762\u8cbc\u710a\u6280\u8853(SMT, Surface Mount Technology)<\/a>\u7684\u767c\u660e\u53ca\u7cbe\u9032\u4f54\u6709\u6975\u5927\u7a0b\u5ea6\u7684\u8ca2\u737b\u3002\u800c<font color=\"#0000ff\"><strong>\u56de\u710a(Reflow)<\/strong><\/font>\u53c8\u662f\u8868\u9762\u8cbc\u710a\u6280\u8853\u4e2d\u6700\u91cd\u8981\u7684\u6280\u8853\u4e4b\u4e00\u3002\u9019\u88e1\u6211\u5011\u5c31\u8a66\u8457\u4f86\u89e3\u91cb\u4e00\u4e0b\u56de\u710a\u7684\u4e00\u4e9b\u6280\u8853\u8207\u6eab\u5ea6\u8a2d\u5b9a\u7684\u554f\u984c\u3002<\/font><\/p>\n<table cellspacing=\"0\" cellpadding=\"2\" width=\"595\" border=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"298\"><img loading=\"lazy\" decoding=\"async\" title=\"Ramp-Soak-Spike(RSS reflow profile) \u5178\u578b\u99ac\u978d\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda\" style=\"margin-right: auto; margin-left: auto; float: none; display: block;\" alt=\"Ramp-Soak-Spike(RSS reflow profile) \u5178\u578b\u99ac\u978d\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/soaking_type_reflow_profile.jpg\" width=\"295\" height=\"168\" \/><\/td>\n<td valign=\"top\" width=\"298\"><img loading=\"lazy\" decoding=\"async\" title=\"Ramp-To-Spike(RTS reflow profile) \u659c\u5347\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda\" style=\"margin-right: auto; margin-left: auto; float: none; display: block;\" alt=\"Ramp-To-Spike(RTS reflow profile) \u659c\u5347\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/sumping_type_reflow_profile.jpg\" width=\"295\" height=\"168\" \/><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"298\" aling=\"left\">\n<p align=\"center\"><font size=\"4\">\u25b2 Ramp-Soak-Spike(RSS)              <br \/>\u5178\u578b\u99ac\u978d\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda<\/font><\/p>\n<\/td>\n<td valign=\"top\" width=\"298\" align=\"left\">\n<p align=\"center\"><font size=\"4\">\u25b2 Ramp-To-Spike(RTS)              <br \/>\u659c\u5347\u5f0f\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda<\/font><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><font size=\"4\"><a title=\"\u4ec0\u9ebc\u662fPCB\u8207PCBA\uff1f\u5b83\u5011\u4e4b\u9593\u6709\u4ec0\u9ebc\u5dee\u7570\uff1f\u5340\u5225\u662f\u4ec0\u9ebc\uff1f\" href=\"\/\/m.letratesoro.com\/2020\/05\/different_pcb_pcba\/\" target=\"_blank\" rel=\"noopener\">\u96fb\u8def\u677f\u7d44\u88dd(PCBA)<\/a>\u7684\u56de\u6d41\u710a\u6eab\u5ea6\u66f2\u7dda(reflow temperature profile)\u5171\u5305\u62ec\u4e86\u9810\u71b1(pre-heat)\u3001\u5438\u71b1(Soak)\u3001\u56de\u710a(Reflow)\u548c\u51b7\u537b(Cooling)\u7b49\u56db\u500b\u5927\u5340\u584a\uff0c\u672c\u6587\u70ba\u500b\u4eba\u7684\u5fc3\u5f97\u6574\u7406\uff0c\u5982\u679c\u6709\u8aa4\u4e5f\u8acb\u5404\u4f4d\u5148\u9032\u4e0d\u541d\u6307\u6559\u3002<\/font><\/p>\n<p align=\"center\"><font color=\"#ff0000\" size=\"4\"><strong>\u53e6\u5916\uff0c\u96a8\u8457\u6280\u8853\u7684\u767c\u5c55\uff0c\u932b\u818f\u8207\u52a9\u710a\u7684\u914d\u65b9\u4e5f\u4e00\u76f4\u5728\u9032\u6b65\uff0c\u5efa\u8b70\u4e00\u5b9a\u8981\u53c3\u8003\u5404\u932b\u818f\u539f\u5ee0\u6240\u63d0\u4f9b\u7684profile\u8981\u6c42\u3002<\/strong><\/font><\/p>\n<p><!--more--><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u76f8\u95dc\u95b1\u8b80\uff1a<a href=\"\/\/m.letratesoro.com\/2018\/02\/rss-rts\/\">\u56de\u6d41\u710a\u7684\u7210\u6eab\u66f2\u7dda\u61c9\u8a72\u4f7f\u7528RSS(\u99ac\u978d)\u578b?\u9084\u662fRTS(\u659c\u6607)\u578b?<\/a> <\/font><\/p>\n<h3><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u9810\u71b1\u5340(Pre-heat zone)<\/font><\/strong><\/h3>\n<p align=\"justify\"><font size=\"4\">\u9810\u71b1\u5340\u901a\u5e38\u662f\u6307PCBA\u7684\u6eab\u5ea6\u7531\u5e38\u6eab\/\u5ba4\u6eab\u5347\u9ad8\u81f3150~170\u00b0C\u5de6\u53f3\u7684\u5340\u57df\ufe50\u5728\u9019\u500b\u5340\u57df\u4e2d\ufe50\u6eab\u5ea6\u61c9\u8a72\u7de9\u5347\uff08\u53c8\u7a31\u4e00\u6b21\u6607\u6eab\uff09\u4ee5\u5229\u932b\u818f\u4e2d\u7684\u90e8\u5206\u6eb6\u5291\u53ca\u6c34\u6c23\u80fd\u5920\u53ca\u6642\u63ee\u767c\u4ee5\u514d\u5674\u6ffa\u5f71\u97ff\u5f8c\u7e8c\u7684\u710a\u63a5\u54c1\u8cea\uff0c\u56e0\u70ba\u5927\u90e8\u5206\u52a9\u710a\u5291\u7684\u6d3b\u5316\u6eab\u5ea6\u5927\u7d04\u843d\u5728150\u00b0C\u4e0a\u4e0b\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5df2\u9ecf\u8cbc\u5728PCB\u4e0a\u7684\u96fb\u5b50\u96f6\u4ef6\uff08\u7279\u5225\u662fBGA\u3001IO\u9023\u63a5\u5668\u96f6\u4ef6\u7b49\u5927\u578b\u96f6\u4ef6\uff09\u4e5f\u8981\u7de9\u6162\u5347\u6eab\ufe50\u70ba\u9069\u61c9\u5f8c\u9762\u7684\u9ad8\u6eab\u9810\u4f5c\u6e96\u5099\uff0c\u6b64\u5340\u6bb5\u5347\u6eab\u901f\u5ea6\u5982\u679c\u592a\u5feb\uff0c\u5c07\u4f7f\u5f97\u96f6\u4ef6\u7684\u5167\u5916\u6eab\u5ea6\u5dee\u7570\u904e\u5927\u6216\u4e0d\u540c\u6750\u8cea<a title=\"\u4f55\u8b02CTE(\u71b1\u81a8\u8139\u4fc2\u6578)\uff1f\u03b12-CTE\u53c8\u662f\u4ec0\u9ebc\uff1fCTE\u5982\u4f55\u5f71\u97ff\u96fb\u8def\u677f\u54c1\u8cea\" href=\"\/\/m.letratesoro.com\/2016\/08\/cte\/\" target=\"_blank\" rel=\"noopener\">CTE<\/a>\u5dee\u7570\u800c\u9020\u6210\u96f6\u4ef6\u8b8a\u5f62\uff0c\u800c\u4e14PCB\u4e0a\u7684\u92ea\u9285\u5206\u4f48\u4e5f\u5e38\u56e0\u70ba\u96fb\u8def\u9700\u6c42\u800c\u4e0d\u6703\u8a2d\u8a08\u5f97\u5f88\u5747\u52fb\uff0c\u904e\u5feb\u7684\u5347\u6eab\u901f\u7387\u4e5f\u5c07\u60e1\u5316\u677f\u5b50\u4e0d\u540c\u5340\u57df\u7684\u5438\u71b1\u901f\u7387\uff0c\u9020\u6210\u71b1\u61c9\u529b\u5dee\u7570\uff0c\u5c0e\u81f4\u677f\u5b50\u626d\u66f2\u8b8a\u5f62\u7b49\u554f\u984c\u3002\u6240\u4ee5\u9810\u71b1\u5340\u7684\u5347\u6eab\u901f\u5ea6\u901a\u5e38\u6703\u63a7\u5236\u57281.5\u00b0C\uff5e3\u00b0C\/sec\u4e4b\u9593\uff0c\u7121\u925b\u932b\u818f\u6709\u4eba\u5c07\u5347\u6eab\u659c\u7387\u8abf\u9ad8\u52305\u00b0C\/sec\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5feb\u901f\u7684\u5347\u6eab\u96d6\u7136\u6709\u52a9\u52a9\u710a\u5291\u5feb\u901f\u9054\u5230\u8edf\u5316\u6eab\u5ea6\uff0c\u4e26\u4f7f\u5f97\u52a9\u710a\u5291\u53ef\u4ee5\u5feb\u901f\u5730\u64f4\u6563\u4e26\u8986\u84cb\u5230\u6700\u5927\u5340\u57df\u7684\u710a\u9ede\uff0c\u4e5f\u53ef\u4ee5\u8b93\u4e00\u4e9b\u6d3b\u5316\u5291\u878d\u5165\u5230\u5be6\u969b\u5408\u91d1\u7684\u6db2\u9ad4\u4e2d\u3002\u53ef\u662f\uff0c\u5347\u6eab\u5982\u679c\u592a\u5feb\ufe50\u7531\u65bc\u71b1\u61c9\u529b\u7684\u4f5c\u7528\ufe50\u53ef\u80fd\u6703\u5c0e\u81f4\u9676\u74f7\u96fb\u5bb9\u7684\u7d30\u5fae\u88c2\u7d0b(micro crack)\u3001PCB\u53d7\u71b1\u4e0d\u5747\u800c\u7522\u751f\u8b8a\u5f62(warpage)\u3001\u7a7a\u6d1e\u6216IC\u6676\u7247\u640d\u58de\ufe50\u540c\u6642\u932b\u818f\u4e2d\u7684\u6eb6\u5291\u63ee\u767c\u592a\u5feb\ufe50\u4e5f\u6703\u5c0e\u81f4\u932b\u818f\u584c\u9677\u7522\u751f\u7684\u5371\u96aa\u3002 <\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u8f03\u6162\u7684\u6eab\u5ea6\u722c\u5347\u5247\u5141\u8a31\u66f4\u591a\u7684\u6eb6\u5291\u63ee\u767c\u6216\u6c23\u9ad4\u9003\u9038\uff0c\u5b83\u4e5f\u53ef\u4ee5\u4f7f\u52a9\u710a\u5291\u66f4\u9760\u8fd1\u710a\u9ede\uff0c\u6e1b\u5c11\u64f4\u6563\u53ca\u5d29\u584c\u7684\u53ef\u80fd\u3002\u4f46\u662f\u5347\u6eab\u592a\u6162\u4e5f\u6703\u5c0e\u81f4\u932b\u818f\u904e\u5ea6\u6c27\u5316\u800c\u964d\u4f4e\u52a9\u710a\u5291\u7684\u6d3b\u6027\u3002 <\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u76f8\u95dc\u95b1\u8b80\uff1a<a href=\"\/\/m.letratesoro.com\/2013\/04\/solder-paste\/\" rel=\"noopener\" target=\"_blank\">\u4ecb\u7d39\u8a8d\u8b58\u3010\u932b\u818f(solder paste)\u3011\u7684\u57fa\u672c\u77e5\u8b58<\/a><\/font><\/p>\n<p><font size=\"4\">\u300a\u5c0f\u7d50\u300b\u9019\u6bb5\u671f\u9593\u71b1\u61c9\u529b\u958b\u59cb\u4f5c\u7528\uff0c\u6c34\u5206\u4e5f\u958b\u59cb\u88ab\u6c23\u5316\uff0c\u5347\u6eab\u5982\u679c\u592a\u5feb\uff0c<\/font><\/p>\n<ul>\n<li><font size=\"4\">1)\u5c07\u5c0e\u81f4\u7206\u677f\u5206\u5c64\uff0c<\/font><\/li>\n<li><font size=\"4\">2)\u96f6\u4ef6CTE\u5dee\u7570\u904e\u5927\u8005\u5c07\u5c0e\u81f4\u96f6\u4ef6\u8b8a\u5f62\uff0c<\/font><\/li>\n<li><font size=\"4\">3)PCB\u7684\u4e0d\u540c\u9285\u7b94\u5340\u57df\u53ef\u80fd\u51fa\u73fe\u6eab\u5dee\u904e\u5927\u5c0e\u81f4\u8b8a\u5f62\uff0c<\/font><\/li>\n<li><font size=\"4\">4)\u52a9\u710a\u5291\u63ee\u767c\u904e\u5feb\u5c0e\u81f4\u5674\u932b\u3002<\/font><\/li>\n<\/ul>\n<p><font size=\"4\">\u5347\u6eab\u5982\u679c\u592a\u6162\uff0c<\/font><\/p>\n<ul>\n<li><font size=\"4\">1)\u932b\u818f\u904e\u5ea6\u6c27\u5316 <\/font><\/li>\n<li><font size=\"4\">2)\u52a9\u710a\u5291\u63ee\u767c\u904e\u591a <\/font><\/li>\n<li><font size=\"4\">3)\u932b\u818f\u574d\u584c<\/font><\/li>\n<\/ul>\n<p align=\"justify\"><font size=\"4\">\u56de\u710a\u7210\u7684\u9810\u71b1\u5340\u4e00\u822c\u4f54\u52a0\u71b1\u901a\u9053\u9577\u5ea6\u76841\/4~1\/3\ufe50\u5176\u505c\u7559\u6642\u9593\u8a08\u7b97\u5982\u4e0b\ufe55\u5047\u8a2d\u74b0\u5883\u6eab\u5ea6\u70ba25\u00b0C\ufe50\u82e5\u5347\u6eab\u659c\u7387\u6309\u71673\u00b0C\/sec\u8a08\u7b97\u5247[(150-25)\/3]\u5373\u70ba42sec\ufe50\u5982\u5347\u6eab\u659c\u7387\u6309\u71671.5\u00b0C\/sec\u8a08\u7b97\u5247[(150-25)\/1.5]\u5373\u70ba85sec\u3002\u901a\u5e38\u6839\u64da\u7d44\u4ef6\u5927\u5c0f\u5dee\u7570\u7a0b\u5ea6\u8abf\u6574\u6642\u9593\u4ee5\u8abf\u63a7\u5347\u6eab\u659c\u7387\u57282\u00b0C\/sec\u4ee5\u4e0b\u70ba\u6700\u4f73\u3002 <\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u53e6\u5916\u9084\u6709\u5e7e\u7a2e\u4e0d\u826f\u73fe\u8c61\u90fd\u8207\u9810\u71b1\u5340\u7684\u5347\u6eab\u5feb\u6162\u6709\u95dc\u4fc2\uff0c\u4e0b\u9762\u4e00\u4e00\u8aaa\u660e\uff1a<\/font><\/p>\n<h6><font size=\"4\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong><font color=\"#0000ff\">1. \u584c\u9677\uff1a<\/font><\/strong><\/font><\/font><\/h6>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u932b\u818f\u767c\u751f\u584c\u9677\u4e3b\u8981\u662f\u767c\u751f\u5728\u932b\u818f\u878d\u5316\u524d\u7684\u818f\u72c0\u968e\u6bb5\uff0c\u932b\u818f\u7684\u9ecf\u5ea6\u6703\u96a8\u8457\u6eab\u5ea6\u7684\u4e0a\u5347\u800c\u4e0b\u964d\uff0c\u9019\u662f\u56e0\u70ba\u6eab\u5ea6\u7684\u4e0a\u5347\u4f7f\u5f97\u6750\u6599\u5167\u7684\u5206\u5b50\u56e0\u71b1\u800c\u9707\u52d5\u5f97\u66f4\u52a0\u5287\u70c8\u6240\u81f4\uff1b\u53e6\u5916\u6eab\u5ea6\u8fc5\u901f\u4e0a\u5347\u6703\u4f7f\u5f97\u6eb6\u5291(Solvent)\u6c92\u6709\u6642\u9593\u9069\u7576\u5730\u63ee\u767c\uff0c\u9020\u6210\u9ecf\u5ea6\u66f4\u8fc5\u901f\u7684\u4e0b\u964d\u3002\u6b63\u78ba\u4f86\u8aaa\uff0c\u6eab\u5ea6\u4e0a\u5347\u5c07\u4f7f\u5f97\u6eb6\u5291\u63ee\u767c\uff0c\u4e26\u589e\u52a0\u9ecf\u5ea6\uff0c\u4f46\u6eb6\u5291\u63ee\u767c\u91cf\u8207\u6642\u9593\u53ca\u6eab\u5ea6\u7686\u6210\u6b63\u6bd4\uff0c\u4e5f\u5c31\u662f\u8aaa\u7d66\u4e88\u4e00\u5b9a\u7684\u6eab\u5347\uff0c\u6642\u9593\u8f03\u9577\u8005\uff0c\u6eb6\u5291\u63ee\u767c\u7684\u91cf\u6703\u6bd4\u8f03\u591a\u3002\u56e0\u6b64\u5347\u6eab\u6162\u7684\u932b\u818f\u9ecf\u5ea6\u6703\u6bd4\u5347\u6eab\u5feb\u7684\u932b\u818f\u9ecf\u5ea6\u4f86\u7684\u9ad8\uff0c\u932b\u818f\u4e5f\u5c31\u5fc5\u8f03\u4e0d\u5bb9\u6613\u7522\u751f\u584c\u9677\u3002 <\/font><\/p>\n<\/blockquote>\n<h6><strong><font color=\"#0000ff\" size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">2. \u932b\u73e0\uff1a<\/font><\/strong><\/h6>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u7576\u52a9\u710a\u5291\u8fc5\u901f\u63ee\u767c\u6210\u6c23\u9ad4\u6642\u6703\u8feb\u4e0d\u53ca\u5f85\u5730\u5f80\u5916\u9003\u9038\uff0c\u56b4\u91cd\u6642\u6703\u9023\u8457\u932b\u9ad8\u4e00\u8d77\u5674\u6ffa\u5f80\u5916\u5e36\uff0c\u800c\u5728\u7247\u5f0f\u96f6\u4ef6(small chip components)\u672c\u9ad4\u4e0b\u65b9\u7684\u5c0f\u9593\u9699\u5c31\u6703\u5e36\u51fa\u5206\u96e2\u7684\u932b\u818f\uff0c<font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><\/font>\u56de\u710a\u6642\u96f6\u4ef6\u4e0b\u65b9\u56e0\u70ba\u6c92\u6709\u710a\u588a\u53ef\u4ee5\u5438\u5f15\u7194\u878d\u7684\u932b\u818f\uff0c\u518d\u52a0\u4e0a\u96f6\u4ef6\u672c\u9ad4\u91cd\u91cf\u64e0\u58d3\uff0c\u65bc\u662f\u5206\u96e2\u7684\u7194\u878d\u932b\u818f\u5c31\u6703\u5f9e\u96f6\u4ef6\u7684\u672c\u9ad4\u4e0b\u65b9\u5192\u51fa\u4f86\u4e26\u5728\u5176\u908a\u7de3\u4e0a\u5f62\u6210\u5c0f\u932b\u73e0\u3002         <br \/><img decoding=\"async\" id=\"SMT\u932b\u73e0\u5f62\u6210\" border=\"0\" alt=\"SMT\u932b\u73e0\u5f62\u6210\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/Solder_bead.jpg\" \/> <\/font><\/p>\n<p><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong><font color=\"#0000ff\" size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">3. \u932b\u7403\uff1a<\/font><\/strong><\/font> <\/p>\n<\/blockquote>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u932b\u7403\u5176\u5be6\u8207\u932b\u73e0\u76f8\u4f3c\uff0c\u9ecf\u5728\u96f6\u4ef6\u53ca\u5f15\u8173\u65c1\u908a\u7684\u7a31\u70ba\u932b\u73e0\uff0c\u5176\u4ed6\u7684\u5247\u7a31\u932b\u7403\u3002\u5347\u6eab\u592a\u5feb\u6642\uff0c\u6eb6\u5291\u6c23\u9ad4\u6703\u8fc5\u901f\u7684\u5f9e\u932b\u818f\u4e2d\u63ee\u767c\u51fa\u4f86\u4e26\u98db\u6ffa\u51fa\u932b\u818f\uff0c\u4e00\u65e6\u932b\u818f\u6cbe\u9644\u5728PCB\u8868\u9762\u5c31\u6703\u5f62\u6210\u7368\u7acb\u7684\u932b\u7403\u3002\u6e1b\u7de9\u5347\u6eab\u7684\u901f\u5ea6\u53ef\u4ee5\u6709\u6548\u63a7\u5236\u932b\u7403\u7684\u7522\u751f\u3002\u4f46\u662f\u5347\u6eab\u592a\u6162\u4e5f\u6703\u5c0e\u81f4\u904e\u5ea6\u6c27\u5316\u800c\u964d\u4f4e\u52a9\u710a\u5291\u7684\u6d3b\u6027\u3002<\/font><\/p>\n<\/blockquote>\n<h6><strong><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font size=\"4\"><font color=\"#0000ff\">4. \u710a\u932b\u71c8\u82af\u8679\u5438\u6548\u61c9(Solder Wicking Effect)\u4e0d\u826f\u73fe\u8c61\uff1a<\/font><\/font><\/font><\/strong><\/h6>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><img loading=\"lazy\" decoding=\"async\" title=\"\u710a\u932b\u71c8\u854a\u8679\u5438\u6548\u61c9(Solder Wicking Effect)\u4e0d\u826f\u73fe\u8c61\" alt=\"\u710a\u932b\u71c8\u854a\u8679\u5438\u6548\u61c9(Solder Wicking Effect)\u4e0d\u826f\u73fe\u8c61\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2023\/PCB-SMT-wicking-effect-soldering01.jpg\" width=\"520\" height=\"323\" \/>\u9019\u500b\u73fe\u8c61\u662f\u710a\u6599\u5728\u6f64\u6fd5\u5f15\u8173\u5f8c\uff0c\u710a\u6599\u5f9e\u710a\u9ede\u5340\u57df\u6cbf\u8457\u5f15\u8173\u5411\u4e0a\u722c\u5347\uff0c\u4ee5\u81f4\u710a\u9ede\u53ca\u710a\u588a\u7522\u751f\u710a\u6599\u4e0d\u8db3\u6216\u7a7a\u710a\u7684\u554f\u984c\u3002\u5176\u53ef\u80fd\u539f\u56e0\u662f\u932b\u818f\u5728\u878d\u5316\u968e\u6bb5\uff0c\u96f6\u4ef6\u8173\u7684\u6eab\u5ea6\u9ad8\u65bcPCB\u7684\u710a\u588a\u6eab\u5ea6\u6240\u81f4\u3002\u53ef\u4ee5\u900f\u904e\u5fae\u589e\u56de\u710a\u7210\u7684\u4e0b\u7210\u6eab\u4f86\u63d0\u5347PCB\u5e95\u90e8\u6eab\u5ea6\u6216\u662f\u5ef6\u9577\u932b\u818f\u5728\u9032\u5165\u7194\u9ede\u524d\u7684\u6642\u9593\u4f86\u5f97\u5230\u6539\u5584\uff0c\u6700\u597d\u53ef\u4ee5\u5728\u710a\u6599\u6f64\u6fd5\u524d\u9054\u5230\u96f6\u4ef6\u8173\u8207\u710a\u588a\u7684\u6eab\u5ea6\u5e73\u8861\u3002\u4e00\u4f46\u710a\u6599\u5df2\u7d93\u6f64\u6fd5\u5728\u710a\u588a\u4e0a\uff0c\u710a\u6599\u7684\u5f62\u72c0\u5c31\u5f88\u96e3\u6539\u8b8a\uff0c\u6b64\u6642\u4e5f\u4e0d\u5728\u53d7\u6eab\u5347\u901f\u7387\u7684\u5f71\u97ff\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u76f8\u95dc\u95b1\u8b80\uff1a<a href=\"\/\/m.letratesoro.com\/2021\/11\/capillary-siphon\/\" target=\"_blank\" rel=\"noopener\">\u4ec0\u9ebc\u662f\u6bdb\u7d30\u73fe\u8c61\u3001\u8679\u5438\u539f\u7406\u3001\u6f64\u6fd5\u3001\u4e0d\u6f64\u6fd5<\/a><\/font><\/p>\n<\/blockquote>\n<h6><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font size=\"4\"><strong><font color=\"#0000ff\">5. \u6f64\u6fd5\u4e0d\u826f\uff1a<\/font><\/strong><\/font><\/font><\/h6>\n<blockquote>\n<p align=\"justify\"><font size=\"4\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u9664\u4e86\u710a\u588a\u6216\u96f6\u4ef6\u5f15\u8173\u6c27\u5316\u5916\uff0c\u56de\u710a\u4e2d\u7684\u7684\u6f64\u6fd5\u4e0d\u826f\u9084\u53ef\u80fd\u7531\u710a\u63a5\u904e\u7a0b\u4e2d\u932b\u7c89\u88ab\u904e\u5ea6\u6c27\u5316\u6240\u5c0e\u81f4\u3002\u53ef\u4ee5\u85c9\u7531\u6e1b\u5c11\u9810\u71b1\u6642\u932b\u818f\u5438\u6536\u904e\u591a\u7684\u71b1\u91cf\u4f86\u6539\u5584\u3002\u7406\u60f3\u7684\u56de\u710a\u6642\u9593\u61c9\u5118\u53ef\u80fd\u7684\u77ed\u3002\u5982\u679c\u6709\u5176\u4ed6\u56e0\u7d20\u5c0e\u81f4\u52a0\u71b1\u6642\u9593\u4e0d\u80fd\u7e2e\u77ed\uff0c\u90a3\u5efa\u8b70\u5f9e\u5ba4\u6eab\u5230\u932b\u818f\u7194\u9ede\u9593\u63a1\u7dda\u6027\u6eab\u5ea6\uff0c\u9019\u6a23\u56de\u710a\u6642\u5c31\u80fd\u6e1b\u5c11\u932b\u7c89\u6c27\u5316\u7684\u53ef\u80fd\u6027\u3002<\/font> <\/font><\/p>\n<p align=\"justify\">\n<\/blockquote>\n<p><font size=\"4\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong><font color=\"#0000ff\">6. \u865b\u710a\u6216\u201c\u6795\u982d\u6548\u61c9\u201d(Head-In-Pillow \u6216 Head-on-Pillow)\uff1a<\/font><\/strong> <\/font><\/font><\/p>\n<p> <font size=\"4\"><\/font>  <\/p>\n<blockquote><p><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"> \u865b\u710a\u7684\u4e3b\u8981\u539f\u56e0\u53ef\u80fd\u662f\u56e0\u70ba\u71c8\u854a\u8679\u5438\u73fe\u8c61\u6216\u662f\u4e0d\u6f64\u6fd5\u6240\u9020\u6210\u3002\u7576\u71c8\u854a\u8679\u5438\u73fe\u8c61\u767c\u751f\u6642\uff0c\u5df2\u878d\u7194\u7684\u710a\u932b\u5c07\u6703\u5f80\u6eab\u5ea6\u6bd4\u8f03\u9ad8\u7684\u4f4d\u7f6e\u79fb\u52d5\uff0c\u9020\u6210\u865b\u710a\u3002\u5982\u679c\u662f\u4e0d\u6f64\u6fd5\u7684\u554f\u984c\uff0c\u4e5f\u5c31\u662f\u6795\u982d\u6548\u61c9\uff0c\u9019\u7a2e\u73fe\u8c61\u662fBGA\u932b\u7403\u5df2\u7d93\u6d78\u5165\u710a\u6599\u4e2d\uff0c\u4f46\u4e26\u672a\u5f62\u6210\u771f\u6b63\u7684\u4ecb\u91d1\u5c6c\u5171\u5316\u7269(IMC)\u6216\u6f64\u6fd5\uff0c\u9019\u500b\u554f\u984c\u901a\u5e38\u53ef\u4ee5\u5229\u7528\u6e1b\u5c11\u6c27\u5316\u4f86\u6539\u5584\uff0c\u53ef\u4ee5\u53c3\u8003\u6f64\u6fd5\u4e0d\u826f\u7684\u89e3\u6c7a\u65b9\u6cd5\u3002      <br \/><strong><em>\u8acb\u6ce8\u610f\uff1a<\/em><\/strong>HIP\u7684\u5f62\u6210\u7684\u4e3b\u8981\u539f\u56e0\u70baPCB\u6216BGA\u8f09\u677f\u5728\u56de\u710a\u5340\u4e4b\u524d\u8b8a\u5f62\uff0c\u800c\u4e0d\u6f64\u6fd5\u53ca\u6c27\u5316\u4e00\u822c\u4f54\u6bd4\u4e0d\u5927\u3002<\/font> <\/p><\/blockquote>\n<blockquote>\n<p><img decoding=\"async\" id=\"Head-In-Pillow \u6795\u982d\u6548\u61c9\" border=\"0\" alt=\"Head-In-Pillow \u6795\u982d\u6548\u61c9\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/headinpillow_defects.jpg\" \/><\/p>\n<p><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u76f8\u95dc\u95b1\u8b80\uff1a        <br \/><\/font><a href=\"\/2012\/02\/bga-hip\/\" rel=\"noopener\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">BGA\u6795\u982d\u6548\u61c9(head-in-pillow,HIP)\u767c\u751f\u7684\u53ef\u80fd\u539f\u56e0<\/font><\/a>       <br \/><a href=\"\/2016\/04\/bga-nwo\/\" rel=\"noopener\" target=\"_blank\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">BGA\u865b\u710aNWO(Non-Wet-Open)\u5f62\u6210\u7684\u539f\u56e0\u53ca\u53ef\u80fd\u89e3\u6c7a\u65b9\u6cd5<\/font><\/a><\/p>\n<\/blockquote>\n<h6><font size=\"4\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><strong><font color=\"#0000ff\">7. \u5893\u7891\u6548\u61c9\u53ca\u6b6a\u659c\uff1a<\/font><\/strong><\/font><\/font><\/h6>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><img decoding=\"async\" id=\"SMT\u5893\u7891\u5f62\u6210\u7684\u539f\u56e0\/\u6a5f\u7406\" style=\"margin: 5px 20px 0px 0px; float: left; display: inline;\" border=\"0\" alt=\"SMT\u5893\u7891\u5f62\u6210\u7684\u539f\u56e0\/\u6a5f\u7406\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/SMT_Tombstone.jpg\" align=\"left\" \/>\u5893\u7891\u662f\u7531\u65bc\u96f6\u4ef6\u5169\u7aef\u7684\u710a\u9ede\u6f64\u6fd5\u4e0d\u5e73\u5747\u6240\u9020\u6210\u7684\uff0c\u4e5f\u5c31\u662f\u96f6\u4ef6\u5169\u7aef\u53d7\u529b\u4e0d\u5747\uff0c\u985e\u4f3c\u8679\u5438\u73fe\u8c61\uff0c\u53ef\u4ee5\u85c9\u7531\u5ef6\u9577\u932b\u818f\u5728\u7194\u9ede\u524d\u7684\u6642\u9593\uff0c\u6216\u662f\u964d\u4f4e\u5347\u6eab\u7684\u901f\u7387\u4f86\u6539\u5584\uff0c\u76ee\u7684\u5728\u4f7f\u96f6\u4ef6\u5169\u7aef\u7684\u6eab\u5ea6\u5728\u932b\u818f\u7194\u9ede\u524d\u9054\u5230\u4e00\u81f4\u53ef\u4ee5\u540c\u6642\u878d\u5316\u3002\u53e6\u4e00\u500b\u8981\u6ce8\u610f\u7684\u662fPCB\u7684\u710a\u588a\u8a2d\u8a08\uff0c\u5982\u679c\u6709\u660e\u986f\u7684\u5927\u5c0f\u4e0d\u540c\u3001\u4e0d\u5c0d\u7a31\u3001\u6216\u662f\u4e00\u65b9\u710a\u588a\u6709\u63a5\u5730(ground)\u53c8\u672a\u8a2d\u8a08<a href=\"\/\/m.letratesoro.com\/2013\/05\/thermal-relief-pad\/\">\u71b1\u963b(thermal relief)<\/a>\u710a\u588a\uff0c\u800c\u53e6\u4e00\u7aef\u7684\u710a\u588a\u7121\u63a5\u5730\uff0c\u5c31\u5bb9\u6613\u9020\u6210\u4e0d\u540c\u7684\u6eab\u5ea6\u51fa\u73fe\u5728\u96f6\u4ef6\u7684\u5169\u7aef\u710a\u588a\uff0c\u7576\u4e00\u65b9\u710a\u588a\u4e0a\u7684\u6eab\u5ea6\u5148\u9054\u5230\u878d\u932b\u6eab\u5ea6\u5c07\u932b\u818f\u878d\u5316\u5f8c\uff0c\u56e0\u8868\u9762\u5f35\u529b\u7684\u62c9\u626f\uff0c\u5c31\u6703\u5c07\u96f6\u4ef6\u7acb\u76f4(\u5893\u7891)\u53ca\u62c9\u659c\u3002         <br \/>\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a<a href=\"\/\/m.letratesoro.com\/2014\/02\/solder-tombstone\/\" target=\"_blank\" rel=\"noopener\">\u96fb\u963b\u96fb\u5bb9\u5c0f\u96f6\u4ef6\u767c\u751f\u7a7a\u710a\u53ca\u7acb\u7891(\u5893\u7891\u6548\u61c9)\u7684\u539f\u56e0<\/a><\/font><\/p>\n<\/blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font size=\"4\"><strong><font color=\"#0000ff\">8. \u7a7a\u6d1e(Voids)\uff1a<\/font><\/strong> <\/font><\/font><\/p>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4e3b\u8981\u662f\u56e0\u70ba\u52a9\u710a\u5291\u4e2d\u7684\u6eb6\u5291\u6216\u662f\u6c34\u88ab\u5feb\u901f\u52a0\u71b1\u5f8c\u6c23\u5316\uff0c\u4e14\u5728\u710a\u6599\u56fa\u5316\u524d\u672a\u5373\u6642\u9038\u51fa\u5305\u8986\u5728\u5167\u6240\u81f4\u3002<\/font><\/p>\n<\/blockquote>\n<h3><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u5438\u71b1\u5340 (Soak zone)<\/font><\/strong><\/h3>\n<p align=\"justify\"><font size=\"4\">\u4e00\u822c\u5c07\u9019\u500b\u5340\u57df\u7ffb\u8b6f\u6210\u300c\u6d78\u6f64\u5340\u300d\uff0c\u4f46\u7d93\u767d\u8001\u5e2b\u7cfe\u6b63\uff0c\u6b63\u78ba\u7684\u540d\u7a31\u61c9\u8a72\u53eb\u300c\u5438\u71b1\u5340\u300d\uff0c\u4e5f\u6709\u4eba\u7a31\u4e4b\u70ba\u300c\u6046\u6eab\u5340\u300d\u6216\u300c\u6d3b\u6027\u5340\u300d\ufe50\u800c\u9019\u6bb5\u5e7e\u8fd1\u6046\u6eab\u7684\u6eab\u5ea6\u901a\u5e38\u7dad\u6301\u5728150\u00b110\u00b0C\u7684\u5340\u57df\uff0c\u7121\u925b\u932b\u818f\u6eab\u5ea6\u5247\u5927\u7d04\u7dad\u6301\u5728170\u00b0C+\/-10\u00b0C\u3002\u659c\u6607\u5f0f\u7684\u6eab\u5ea6\u901a\u5e38\u843d\u5728150\uff5e190\u00b0C\u4e4b\u9593\u3002\u6b64\u6eab\u5340\u8655\u65bc\u932b\u818f\u878d\u5316\u7684\u524d\u5915\ufe50\u932b\u818f\u4e2d\u7684\u63ee\u767c\u7269\u4e5f\u6703\u88ab\u9032\u4e00\u6b65\u53bb\u9664\ufe50\u6d3b\u5316\u5291\u5df2\u7d93\u555f\u52d5\ufe50\u4e26\u6709\u6548\u7684\u53bb\u9664\u710a\u63a5\u8868\u9762\u7684\u6c27\u5316\u7269\ufe50\u6b64\u6eab\u5340\u7684\u4e3b\u8981\u76ee\u7684\u5728\u4f7f\u5f97\u4e0d\u540c\u5927\u5c0f\u3001\u4e0d\u540c\u8cea\u5730\u7684\u96f6\u7d44\u4ef6\u6eab\u5ea6\u80fd\u5728\u9032\u53bb\u56de\u710a\u5340\u524d\u9054\u5230\u4e00\u81f4\u7684\u6eab\u5ea6\ufe50\u8b93\u677f\u9762\u6eab\u5ea6\u5dee\u25b3T\u63a5\u8fd1\u6700\u5c0f\u503c\u3002\u5982\u679c\u628a\u56de\u710a\u5340\u6bd4\u55bb\u70ba\u5c71\u982d\uff0c\u5438\u71b1\u5340\u5c31\u662f\u5728\u5927\u6230\u524d\u96c6\u7d50\u5927\u8ecd\uff0c\u7136\u5f8c\u4e00\u8209\u653b\u4e0b\u5c71\u982d\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\uff08\u5982\u679cPCB\u4e0a\u53ea\u6709\u7c21\u55ae\u6c92\u6709\u592a\u591a\u8907\u96dc\u7684\u96f6\u4ef6\uff0c\u6bd4\u5982\u6c92\u6709\u5927\u9846BGA\u6216\u5176\u4ed6\u5927\u9846\u4e0d\u6613\u5438\u71b1\u96f6\u4ef6\uff0c\u4e5f\u5c31\u662f\u8aaa\u96f6\u4ef6\u9593\u7684\u6eab\u5ea6\u53ef\u4ee5\u8f15\u6613\u9054\u5230\u4e00\u81f4\uff0c\u5247\u5efa\u8b70\u63a1\u7528\u300c\u659c\u6607\u5f0f\u66f2\u7dda\u300d\u3002\u62dc\u73fe\u4ee3\u79d1\u6280\u9032\u6b65\u4e4b\u8cdc\uff0c\u5982\u679c\u56de\u710a\u7210\u7684\u6548\u7387\u5920\u597d\uff0c\u53ef\u4ee5\u5feb\u901f\u5730\u8b93PCBA\u4e0a\u6240\u6709\u96f6\u4ef6\u7684\u6eab\u5ea6\u5747\u52fb\u7684\u8a71\uff0c\u4e5f\u53ef\u4ee5\u8003\u616e\u63a1\u7528\u300c\u659c\u6607\u5f0f\u66f2\u7dda\u300d\u3002\u300c\u659c\u6607\u5f0f\u66f2\u7dda\u300d\u7684\u512a\u9ede\u662f\u5e0c\u671b\u78ba\u4fdd\u932b\u818f\u878d\u932b\u6642\u6240\u6709\u710a\u9ede\u540c\u6642\u878d\u932b\uff0c\u5df2\u9054\u5230\u6700\u4f73\u7684\u710a\u63a5\u6548\u679c\u3002\uff09<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u76f8\u95dc\u95b1\u8b80\uff1a<\/font><a href=\"\/\/m.letratesoro.com\/2018\/02\/rss-rts\/\" rel=\"noopener\" target=\"_blank\"><font size=\"4\">\u56de\u6d41\u710a\u7684\u7210\u6eab\u66f2\u7dda\u61c9\u8a72\u4f7f\u7528\u7684\u662fRSS?\u9084\u662fRTS\u578b?<\/font><\/a><\/p>\n<p align=\"justify\"><font size=\"4\">\u6b64\u6eab\u5340\u7684\u6eab\u5ea6\u66f2\u7dda\u5f62\u614b\u63a5\u8fd1\u6c34\u5e73\u72c0\ufe50\u5b83\u4e5f\u662f\u8a55\u4f30\u56de\u710a\u7210\u5de5\u85dd\u7684\u4e00\u500b\u7a97\u53e3\ufe50\u9078\u64c7\u80fd\u7dad\u6301\u5e73\u5766\u6d3b\u6027\u6eab\u5ea6\u66f2\u7dda\u7684\u7210\u5b50\u5c07\u53ef\u63d0\u9ad8\u710a\u63a5\u7684\u6548\u679c\ufe50\u7279\u5225\u662f\u9632\u6b62<a title=\"\u96fb\u963b\u96fb\u5bb9\u5c0f\u96f6\u4ef6\u767c\u751f\u7a7a\u710a\u53ca\u7acb\u7891(\u5893\u7891\u6548\u61c9)\u7684\u539f\u56e0\" href=\"\/\/m.letratesoro.com\/2014\/02\/solder-tombstone\/\" rel=\"noopener\" target=\"_blank\">\u7acb\u7891<\/a>\u7f3a\u9677\u7684\u7522\u751f\uff0c\u56e0\u70ba\u8f03\u4e0d\u6613\u9020\u6210\u878d\u932b\u4e0d\u4e00\u7684\u6642\u9593\u5dee\uff0c\u96f6\u4ef6\u5169\u7aef\u4e5f\u5c31\u6bd4\u8f03\u4e0d\u6703\u6709\u61c9\u529b\u4e0d\u540c\u7684\u554f\u984c\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u6046\u6eab\u5340\u901a\u5e38\u5728\u7210\u5b50\u76842\ufe503\u5340\u4e4b\u9593\ufe50\u6642\u9593\u7dad\u6301\u7d04\u70ba60\uff5e120s\ufe50\u82e5\u6642\u9593\u904e\u9577\u6703\u5c0e\u81f4\u677e\u9999\u904e\u5ea6\u63ee\u767c\uff0c\u4e26\u9020\u6210\u932b\u818f\u904e\u5ea6\u6c27\u5316\u7684\u554f\u984c\ufe50\u5728\u56de\u6d41\u710a\u63a5\u6642\u5931\u53bb\u6d3b\u6027\u548c\u4fdd\u8b77\u529f\u80fd\uff0c\u4ee5\u81f4\u710a\u63a5\u5f8c\u9020\u6210\u865b\u710a\u3001\u710a\u9ede\u6b98\u7559\u7269\u767c\u9ed1\u3001\u710a\u9ede\u4e0d\u5149\u4eae\u7b49\u554f\u984c\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u6b64\u5340\u57df\u7684\u6eab\u5ea6\u5982\u679c\u5347\u6eab\u592a\u5feb\uff0c\u932b\u818f\u4e2d\u7684\u677e\u9999(\u52a9\u710a\u5291)\u5c31\u6703\u8fc5\u901f\u81a8\u8139\u63ee\u767c\uff0c\u6b63\u5e38\u60c5\u6cc1\u4e0b\uff0c\u677e\u9999\u61c9\u8a72\u6703\u6162\u6162\u5f9e\u932b\u818f\u9593\u7684\u7e2b\u9699\u9038\u6563\uff0c\u7576\u677e\u9999\u63ee\u767c\u7684\u901f\u5ea6\u904e\u5feb\u6642\uff0c\u5c31\u6703\u767c\u751f\u6c23\u5b54\u3001\u70b8\u932b\u3001\u932b\u73e0\u7b49\u54c1\u8cea\u554f\u984c\u3002<\/font><\/p>\n<h3><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u56de\u710a\u5340(Reflow zone)<\/font><\/strong><\/h3>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u56de\u710a\u5340\u662f\u6574\u6bb5\u56de\u710a\u6eab\u5ea6\u6700\u9ad8\u7684\u5340\u57df\ufe50\u901a\u5e38\u4e5f\u53eb\u505a\u300c<strong><font color=\"#0000ff\">\u6db2\u614b\u4fdd\u6301\u6642\u9593(TAL, time above liquids)<\/font><\/strong>\u300d\u3002\u6b64\u6642\u710a\u6599\u4e2d\u7684\u932b\u6703\u8207\u710a\u588a\u4e0a\u7684\u9285(Cu)\u6216\u93b3(Ni)\u8d77\u5230\u300c\u5316\u5b78\u53cd\u61c9\u300d\u800c\u5f62\u6210\u91d1\u5c6c\u9593\u7684\u5316\u5408\u7269Cu<sub>5<\/sub>Sn<sub>6<\/sub>\u6216Ni<sub>3<\/sub>Sn<sub>4<\/sub>\u3002\u4ee5<a title=\"\u4ec0\u9ebc\u662fOSP(\u6709\u6a5f\u4fdd\u710a\u819c)\u8868\u9762\u8655\u7406\u96fb\u8def\u677f\uff1f\u6709\u4f55\u512a\u7f3a\u9ede\uff1f\" href=\"\/\/m.letratesoro.com\/2018\/07\/osp-finish\/\" rel=\"noopener\" target=\"_blank\">OSP(\u6709\u6a5f\u4fdd\u8b77\u819c)<\/a>\u7684\u8868\u9762\u8655\u7406\u70ba\u4f8b\uff0c\u7576\u932b\u818f\u878d\u5316\u5f8c\u6703\u8fc5\u901f\u6f64\u6fd5\u9285\u5c64\uff0c\u932b\u539f\u5b50\u8207\u9285\u539f\u5b50\u5728\u5176\u4ecb\u9762\u4e0a\u4e92\u76f8\u6ef2\u900f\uff0c\u521d\u671fSn-Cu\u5408\u91d1\u7684\u7d50\u69cb\u70ba\u826f\u597d\u7684Cu<sub>6<\/sub>Sn<sub>5<\/sub>\u4ecb\u91d1\u5c6c\u5316\u5408\u7269(IMC)\uff0c\u70ba\u56de\u710a\u7210\u5b50\u5167\u7684\u95dc\u9375\u968e\u6bb5\uff0c\u56e0\u70ba\u88dd\u914d\u4e0a\u7684\u6eab\u5ea6\u68af\u5ea6\u5fc5\u9808\u6700\u5c0f\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">IMC\u7684\u539a\u5ea6\u57281-5\u03bcm\u90fd\u53ef\u4ee5\u63a5\u53d7\uff0c\u4f46IMC\u592a\u539a\u4e5f\u4e0d\u597d\uff0c\u4e00\u822c\u5efa\u8b70\u53ef\u4ee5\u63a7\u5236\u57281-3\u03bcm\u70ba\u6700\u4f73\u3002TAL\u5fc5\u9808\u4fdd\u6301\u5728\u932b\u818f\u88fd\u9020\u5546\u6240\u898f\u5b9a\u7684\u53c3\u6578\u4e4b\u5167\u3002\u7523\u54c1\u7684\u5cf0\u503c\u6eab\u5ea6\u4e5f\u662f\u5728\u9019\u500b\u968e\u6bb5\u9054\u6210\u7684\uff08\u88dd\u914d\u9054\u5230\u7210\u5167\u7684\u6700\u9ad8\u6eab\u5ea6\uff09\uff0c\u6642\u9593\u5982\u679c\u904e\u9577IMC\u5c07\u6703\u8b8a\u539a\u8b8a\u8106\u3001\u9285\u57fa\u5730\u677f\u5b50\u4e5f\u53ef\u80fd\u7e7c\u7e8c\u751f\u6210Cu<sub>3<\/sub>Sn\u7684\u4e0d\u826fIMC\u3002ENIG\u8868\u9762\u8655\u7406\u7684\u677f\u5b50\uff0c\u521d\u671f\u5247\u6703\u751f\u6210Ni<sub>3<\/sub>Sn<sub>4<\/sub>\u7684IMC\uff0c\u4f46\u4e5f\u6703\u751f\u6210\u6975\u5c11\u7684Cu<sub>6<\/sub>Sn<sub>5<\/sub>\u5316\u5408\u7269\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5efa\u8b70\u76f8\u95dc\u95b1\u8b80\uff1a<\/font><a href=\"\/\/m.letratesoro.com\/2014\/03\/soldering-strength-imc\/\" rel=\"noopener\" target=\"_blank\"><font size=\"4\">\u4f55\u8b02IMC (Intermetallic Compound)\uff1fIMC\u8207PCB\u710a\u63a5\u5f37\u5ea6\u6709\u4f55\u95dc\u4fc2\uff1f<\/font><\/a><\/p>\n<p align=\"justify\"><font size=\"4\">\u5fc5\u9808\u5c0f\u5fc3\u7684\u662f\uff0c\u6eab\u5ea6\u4e0d\u53ef\u8d85\u904ePCB\u677f\u4e0a\u4efb\u4f55\u6eab\u5ea6\u654f\u611f\u5143\u4ef6\u7684\u6700\u9ad8\u6eab\u5ea6\u548c\u52a0\u71b1\u901f\u7387\u627f\u53d7\u80fd\u529b\u3002\u4f8b\u5982\uff0c\u4e00\u500b\u5178\u578b\u7b26\u5408\u7121\u925b\u88fd\u7a0b\u7684\u926d\u96fb\u5bb9\u5177\u6709\u7684\u6700\u9ad8\u6eab\u5ea6\u5728260\u00b0C\u6642\u6700\u591a\u53ea\u80fd\u6301\u7e8c10\u79d2\u9418\u3002\u7406\u60f3\u72c0\u6cc1\u4e0b\u61c9\u8a72\u8b93\u88dd\u914d\u4e0a\u6240\u6709\u7684\u710a\u9ede\u540c\u6642\u3001\u540c\u901f\u7387\u9054\u5230\u76f8\u540c\u7684\u5cf0\u503c\u6eab\u5ea6\uff0c\u4ee5\u4fdd\u8b49\u6240\u6709\u96f6\u4ef6\u5728\u7210\u5167\u7d93\u6b77\u76f8\u540c\u7684\u74b0\u5883\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u56de\u710a\u7684\u5cf0\u503c\u6eab\u5ea6\uff0c\u901a\u5e38\u53d6\u6c7a\u65bc\u710a\u6599\u7684\u7194\u9ede\u6eab\u5ea6\u53ca\u7d44\u88dd\u96f6\u4ef6\u6240\u80fd\u627f\u53d7\u7684\u6eab\u5ea6\u3002\u4e00\u822c\u7684\u5cf0\u503c\u6eab\u5ea6\u61c9\u8a72\u6bd4\u932b\u818f\u7684\u6b63\u5e38\u7194\u9ede\u6eab\u5ea6\u8981\u9ad8\u51fa\u7d0425~30\u00b0C\uff0c\u624d\u80fd\u9806\u5229\u7684\u5b8c\u6210\u710a\u63a5\u4f5c\u696d\u3002\u5982\u679c\u4f4e\u65bc\u6b64\u6eab\u5ea6\uff0c\u5247\u6975\u6709\u53ef\u80fd\u6703\u9020\u6210\u51b7\u710a\u8207\u6f64\u6fd5\u4e0d\u826f\u7684\u7f3a\u9ede\u3002\u800c\u56de\u710a\u5340(TAL)\u7684\u6642\u9593\u4e00\u822c\u5efa\u8b70\u572830~60s\u4e4b\u9593\uff0c\u5c11\u6578\u6709\u4e9b\u5ee0\u5546\u6703\u8981\u6c42\u572845s\u4ee5\u4e0a\u53ca90s\u4ee5\u4e0b\u3002<\/font><\/p>\n<h3><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u51b7\u537b\u5340(Cooling zone)<\/font><\/strong><\/h3>\n<p align=\"justify\"><font size=\"4\">\u5728\u56de\u710a\u5340\u4e4b\u5f8c\uff0c\u7522\u54c1\u51b7\u537b\uff0c\u56fa\u5316\u710a\u9ede\uff0c\u5c07\u70ba\u5f8c\u9762\u88dd\u914d\u7684\u5de5\u5e8f\u6e96\u5099\u3002\u63a7\u5236\u51b7\u537b\u901f\u5ea6\u4e5f\u662f\u95dc\u9375\u7684\uff0c\u51b7\u537b\u592a\u5feb\u53ef\u80fd\u640d\u58de\u88dd\u914d\uff0c\u51b7\u537b\u592a\u6162\u5c07\u589e\u52a0TAL\uff0c\u53ef\u80fd\u9020\u6210\u8106\u5f31\u7684\u710a\u9ede\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u4e00\u822c\u8a8d\u70ba\u51b7\u537b\u5340\u61c9\u8fc5\u901f\u964d\u6eab\u4f7f\u710a\u6599\u51dd\u56fa\u3002\u8fc5\u901f\u51b7\u537b\u4e5f\u53ef\u4ee5\u5f97\u5230\u8f03\u7d30\u7684\u5408\u6676\u7d50\u69cb\uff0c\u63d0\u9ad8\u710a\u9ede\u7684\u5f37\u5ea6\uff0c\u4f7f\u710a\u9ede\u5149\u4eae\uff0c\u8868\u9762\u9023\u7e8c\u4e26\u5448\u5f4e\u6708\u9762\u72c0\uff0c\u4f46\u7f3a\u9ede\u5c31\u662f\u8f03\u5bb9\u6613\u751f\u6210\u5b54\u6d1e\uff0c\u56e0\u70ba\u6709\u4e9b\u6c23\u9ad4\u4f86\u4e0d\u53ca\u9003\u9038\u3002 <\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u76f8\u53cd\u7684\uff0c\u5728\u7194\u9ede\u4ee5\u4e0a\u7de9\u6162\u7684\u51b7\u537b\u5247\u5bb9\u6613\u5c0e\u81f4\u904e\u91cf\u7684<a href=\"\/\/m.letratesoro.com\/2014\/03\/soldering-strength-imc\/\" rel=\"noopener\" target=\"_blank\">\u4ecb\u91d1\u5c6c\u5316\u5408\u7269(IMC)<\/a>\u7522\u751f\u53ca\u8f03\u5927\u7684\u5408\u6676\u9846\u7c92\uff0c\u964d\u4f4e\u6297\u75b2\u52de\u5f37\u5ea6\u3002\u63a1\u7528\u6bd4\u8f03\u5feb\u7684\u51b7\u537b\u901f\u7387\u53ef\u4ee5\u6709\u6548\u5687\u963b\u4ecb\u91d1\u5c6c\u5316\u5408\u7269\u7684\u751f\u6210\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5728\u52a0\u901f\u51b7\u537b\u901f\u5ea6\u7684\u540c\u6642\u9808\u6ce8\u610f\u5230\u96f6\u4ef6\u8010\u885d\u64ca\u7684\u80fd\u529b\uff0c\u4e00\u822c\u7684\u96fb\u5bb9\u6240\u5bb9\u8a31\u7684\u6700\u5927\u51b7\u537b\u901f\u7387\u5927\u7d04\u662f4\u00b0C\/sec\u3002\u904e\u5feb\u7684\u51b7\u537b\u901f\u7387\u5f88\u53ef\u80fd\u6703\u5f15\u8d77\u61c9\u529b\u5f71\u97ff\u800c\u7522\u751f\u9f9c\u88c2(Crack)\u3002\u4e5f\u53ef\u80fd\u5f15\u8d77\u710a\u588a\u8207PCB\u6216\u710a\u588a\u8207\u710a\u9ede\u7684\u525d\u96e2\uff0c\u9019\u662f\u7531\u65bc\u96f6\u4ef6\u3001\u710a\u6599\u3001\u8207\u710a\u9ede\u5404\u64c1\u6709\u4e0d\u540c\u7684\u71b1\u81a8\u8139\u4fc2\u6578\u53ca\u6536\u7e2e\u7387\u7684\u7d50\u679c\u3002\u4e00\u822c\u5efa\u8b70\u7684\u964d\u6eab\u901f\u5ea6\u70ba2~5\u00b0C\/s\u4e4b\u9593\u3002<\/font><\/p>\n<h3><strong><font color=\"#0000ff\" size=\"5\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">YouTube\u5f71\u7247\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u56de\u710a\u6eab\u5ea6\u66f2\u7dda\u7684\u77e5\u8b58\uff1a<\/font><\/strong><\/h3>\n<p align=\"center\" aling=\"center\"><strong><font size=\"4\">SMT\u56de\u710a\u524d\u70ba\u4f55\u8981\u5148\u91cf\u6e2c\u6eab\u5ea6\u66f2\u7dda<\/font> <\/strong><iframe loading=\"lazy\" title=\"YouTube video player\" height=\"326\" allowfullscreen=\"allowfullscreen\" src=\"https:\/\/www.youtube.com\/embed\/U8QexEkFY1s?si=Bz-zCZDYqI-kDx06\" frameborder=\"0\" width=\"580\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\"><\/iframe><\/p>\n<p align=\"center\" aling=\"center\"><font size=\"4\"><strong>SMT\u56de\u710a\uff1a\u4ec0\u9ebc\u662fRSS\u66f2\u7dda\uff1f\u4ec0\u9ebc\u53c8\u662fRTS\u66f2\u7dda\uff1f\u5169\u8005\u53c8\u5404\u6709\u4f55\u512a\u7f3a\u9ede\uff1f<\/strong><\/font><iframe loading=\"lazy\" title=\"YouTube video player\" height=\"326\" allowfullscreen=\"allowfullscreen\" src=\"https:\/\/www.youtube.com\/embed\/Aq87c8jt5kw?si=htj0HAs3tUUhZu7d\" frameborder=\"0\" width=\"580\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\"><\/iframe><\/p>\n<hr \/>\n<h2><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">\u5176\u4ed6\u56de\u710a\u66f2\u7dda\u76f8\u95dc\u6587\u7ae0\uff1a<\/font><\/font><\/h2>\n<table cellspacing=\"0\" cellpadding=\"2\" border=\"0\">\n<tbody>\n<tr>\n<td style=\"padding: 2px 5px;\" valign=\"top\" width=\"33%\">\n<p align=\"center\"><a href=\"\/\/m.letratesoro.com\/2022\/11\/smt-reflow-profile-drift\/\" rel=\"noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2022\/10\/SMT-reflow-profile-drift01.png\" width=\"185\" height=\"102\" \/><\/a>             <br \/><a href=\"\/\/m.letratesoro.com\/2022\/11\/smt-reflow-profile-drift\/\">SMT\u56de\u710a\u6eab\u5ea6\u66f2\u7dda\u4e2d\u56de\u710a\u5340\u524d\u5f8c\u7194\u9ede\u9644\u8fd1\u6eab\u5ea6\u6703\u6709\u77ed\u66ab\u505c\u9813\u5e73\u79fb\u6216\u62ac\u5347\u662f\u4ec0\u9ebc\u539f\u56e0\uff1f<\/a><\/p>\n<\/td>\n<td style=\"padding: 2px 5px;\" valign=\"top\" width=\"33%\" align=\"middle\">\n<p align=\"center\"><a href=\"\/\/m.letratesoro.com\/2021\/06\/bare-profile-board\/\" rel=\"noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/2020\/04\/Bare-PCB.jpg\" width=\"185\" height=\"125\" \/><\/a>             <br \/><a href=\"\/\/m.letratesoro.com\/2021\/06\/bare-profile-board\/\">\u53ef\u4ee5\u7528\u7a7a\u677f\u4f86\u88fd\u4f5c\u56de\u710a\u6e2c\u6eab\u677f(profile board)\u55ce\uff1f<\/a><\/p>\n<\/td>\n<td style=\"padding: 2px 5px;\" valign=\"top\" width=\"33%\" align=\"middle\">\n<p align=\"center\"><a href=\"\/\/m.letratesoro.com\/2018\/02\/rss-rts\/\" rel=\"noopener\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/%E5%9B%9E%E7%84%8A%E7%88%90%E6%BA%AB%E5%BA%A6%E6%9B%B2%E7%B7%9A%E8%A9%B2%E9%81%B8RSS%E9%A6%AC%E9%9E%8D%E5%BC%8F%E9%82%84%E6%98%AFRTS%E6%96%9C%E6%98%87%E5%BC%8F-1.png\" width=\"185\" height=\"80\" \/><\/a> <a href=\"\/\/m.letratesoro.com\/2018\/02\/rss-rts\/\">\u56de\u6d41\u710a\u7684\u7210\u6eab\u66f2\u7dda\u61c9\u8a72\u4f7f\u7528RSS(\u99ac\u978d)\u578b?\u9084\u662fRTS(\u659c\u6607)\u578b?<\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><font size=\"4\">\u5ef6\u4f38\u95b1\u8b80\uff1a      <br \/><\/font><a href=\"\/\/m.letratesoro.com\/2010\/07\/reflow-carrier\/\"><font size=\"4\">\u5408\u6210\u77f3\u904e\u7210\u6258\u76e4(Reflow carrier)<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2010\/08\/bga-solder-skip-identification\/\"><font size=\"4\">\u5982\u4f55\u7531X-Ray\u4f86\u5224\u65b7BGA\u6709\u5426\u7a7a\u710a<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2010\/12\/how-smt-assemble-pcb\/\"><font size=\"4\">\u96fb\u5b50\u88fd\u9020\u5de5\u5ee0\u5982\u4f55\u7522\u51fa\u4e00\u7247\u96fb\u8def\u677f<\/font><\/a><font size=\"4\">&#160;<\/font>     <br \/><a href=\"\/\/m.letratesoro.com\/2010\/07\/step-up-stencil\/\"><font size=\"4\">step-up &amp; step-down stencil \u968e\u68af\u5f0f\u92fc\u677f\u5c40\u90e8\u52a0\u539a\/\u6253\u8584<\/font><\/a><font size=\"4\"> <\/font><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u96fb\u5b50\u7522\u696d\u4e4b\u6240\u4ee5\u80fd\u5920\u84ec\u52c3\u767c\u5c55\uff0c\u8868\u9762\u8cbc\u710a\u6280\u8853(SMT &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,4],"tags":[47,49,75],"aioseo_notices":[],"views":244303,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/9"}],"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=9"}],"version-history":[{"count":21,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/9\/revisions"}],"predecessor-version":[{"id":11270,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/9\/revisions\/11270"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=9"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=9"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=9"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}