{"id":10440,"date":"2022-11-23T08:19:00","date_gmt":"2022-11-23T00:19:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=10440"},"modified":"2024-01-29T13:34:58","modified_gmt":"2024-01-29T05:34:58","slug":"low-temperature-solder-lts","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2022\/11\/low-temperature-solder-lts\/","title":{"rendered":"\u4f4e\u6eab\u932b\u818f(LTS)\u88fd\u7a0b\u6709\u6a5f\u6703\u6210\u70ba\u672a\u4f86\u4e3b\u6d41\u55ce\uff1f\u9084\u662f\u66c7\u82b1\u4e00\u73fe\uff1f"},"content":{"rendered":"<p align=\"center\"><font size=\"4\"><img decoding=\"async\" title=\"\u4f4e\u6eab\u932b\u818f(LTS)\u88fd\u7a0b\u6709\u6a5f\u6703\u6210\u70ba\u672a\u4f86\u4e3b\u6d41\u55ce\uff1f\" alt=\"\u5982\u679c\u4f60\u770b\u4e0d\u5230\u9019\u5f35\u5716\u7247\uff0c\u662f\u56e0\u70ba\u4f60\u4f7f\u7528\u4e86adblock\u963b\u64cb\u5668\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/advertise\/benefit-LTS01.png\" \/><\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u904e\u53bb\u70ba\u4e86\u56e0\u61c9\u6b50\u76df\u7684\u300c\u6709\u5bb3\u7269\u8cea\u9650\u7528\u6307\u4ee4\uff08Restriction of Hazardous Substances Directive 2002\/95\/EC, RoHS\uff09\u8981\u6c42\uff0c<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\/\" rel=\"noopener\" target=\"_blank\">PCBA(\u96fb\u8def\u677f\u7d44\u88dd)<\/a>\u88fd\u7a0b\u7684\u710a\u932b\u5f9e\u932b\u925b(SnPb)\u8f49\u8b8a\u70ba\u932b\u9280\u9285(SAC)\u5408\u91d1\uff0c\u537b\u76f8\u5c0d\u7684\u63d0\u9ad8\u4e86\u710a\u932b\u7684\u7194\u63a5\u6eab\u5ea6\u3002<span class=\"RED_UNDERLINE\">\u70ba\u4e86\u56e0\u61c9\u7bc0\u80fd\u6e1b\u78b3\u5927\u8da8\u52e2\uff0c\u73fe\u5728\u4f3c\u4e4e\u6709\u8d8a\u4f86\u8d8a\u591a\u4f01\u696d\u6b63\u5728\u5617\u8a66\u5c07SAC\u9ad8\u6eab\u88fd\u7a0b\u5f80\u4f4e\u6eab\u88fd\u7a0b(Low Temperature Soldering, LTS)\u65b9\u5411\u767c\u5c55\u7684\u8da8\u52e2<\/span>\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5176\u5be6\u7576\u521d\u710a\u932b\u88fd\u7a0b\u8f49\u5165SAC\u5408\u91d1\u5f8c\uff0cSMT\u751f\u7522\u7dda\u7684\u56de\u710a\u5cf0\u503c\u6eab\u5ea6(peak temperature)\u4e5f\u5f9e\u539f\u672c\u7684220\u02daC\u4e0a\u5347\u5230\u4e86250\u02daC\u5de6\u53f3\uff0c\u800c\u710a\u932b\u6eab\u5ea6\u7684\u5347\u9ad8\u4e5f\u610f\u5473\u8457\u96f6\u4ef6\u6750\u6599\u53ca\u751f\u7522\u6210\u672c\u7684\u63d0\u9ad8\uff0c\u6bd4\u5982\u8aaa\u9700\u8981\u4f7f\u7528\u5230\u66f4\u8010\u9ad8\u6eab\u7684\u6750\u6599\uff0c\u6700\u5927\u7684\u6539\u8b8a\u662f\u5de5\u7a0b\u5851\u81a0\u6750\u6599\u8b8a\u66f4\uff0c\u53e6\u5916\uff0c\u9ad8\u6eab\u4e5f\u60e1\u5316\u4e86\u751f\u7522\u7684\u54c1\u8cea\uff0c\u6bd4\u5982\u8aaa\u6750\u6599\u5728\u9ad8\u6eab\u4e0b\u66f4\u5bb9\u6613\u8b8a\u5f62\u9020\u6210\u710a\u63a5\u4e0d\u826f\u3002<\/font><\/p>\n<p><!--more--><\/p>\n<p align=\"justify\"><font size=\"4\">\u800c\u76ee\u524d\u6700\u70ba\u5927\u5bb6\u6240\u719f\u77e5\u7684\u4f4e\u6eab\u710a\u932b\u5247\u662f\u4ee5\u932b(Sn)\u70ba\u57fa\u790e\u6dfb\u52a0\u924d(Bi)\u7684\u932b\u924d(SnBi)\u8207\u932b\u924d\u9280(SnBiAg)\u5408\u91d1\u3002\u6240\u4ee5\uff0c\u4eca\u5929\u6211\u5011\u5c31\u4f86\u5927\u81f4\u63a2\u8a0e\u4e00\u4e0bLTS\u7684\u512a\u7f3a\u9ede\u3001\u53ef\u884c\u6027\u8207\u672a\u4f86\u53ef\u80fd\u8da8\u52e2\u3002<\/font><\/p>\n<h2><font style=\"font-weight: bold;\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">LTS\u88fd\u7a0b\u7684\u512a\u9ede\uff1a<\/font><\/h2>\n<ul>\n<li>\n<p align=\"justify\"><font size=\"4\"><font color=\"#9b00d3\"><strong>\u7bc0\u80fd\u6e1b\u78b3\u3001\u964d\u4f4e\u80fd\u8017\u3002<\/strong><\/font>\u56e0\u70ba\u63a1\u7528\u8f03\u4f4e\u7194\u9ede\u7684\u710a\u932b\u5408\u91d1\uff0c\u5f62\u6210\u710a\u63a5\u6240\u9700\u8981\u7684\u6eab\u5ea6\u53ca\u6642\u9593\u5c31\u6703\u8ddf\u8457\u964d\u4f4e\u8207\u6e1b\u5c11\uff0c\u80fd\u8017\u76f8\u5c0d\u5730\u4e5f\u5c31\u964d\u4f4e\uff0c\u9054\u5230\u7bc0\u80fd\u6e1b\u78b3\u7684\u76ee\u7684\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\"><strong><font color=\"#9b00d3\">\u964d\u4f4e\u9ad8\u6eab\u6750\u6599\u9700\u6c42\u3001\u964d\u4f4e\u6750\u6599\u6210\u672c\u3002<\/font><\/strong>\u5728\u5ba4\u6eab\u4ee5\u4e0a\u4f7f\u7528\u8010\u6eab\u8f03\u4f4e\u7684\u6750\u6599\uff0c\u901a\u5e38\u610f\u5473\u8457\u8f03\u4f4e\u7684\u6750\u6599\u6210\u672c\uff0c\u81f3\u5c11\u6750\u6599\u7684\u52a0\u5de5\u6210\u672c\u5c31\u6bd4\u8f03\u4f4e\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\"><strong><font color=\"#9b00d3\">\u964d\u4f4e\u88fd\u7a0b\u9580\u6abb\u3001\u63d0\u9ad8\u751f\u7522\u826f\u7387\u3002<\/font><\/strong>\u5c07\u710a\u932b\u5408\u91d1\u5f9eSAC\u6539\u70baSnBi\uff0c\u5176\u56de\u710a\u7210\u5167\u7684\u6700\u9ad8\u6eab\u6703\u5f9e250\u02daC\u964d\u4f4e\u5230175\u02daC\u5de6\u53f3\uff0c\u76f8\u5c0d\u5730\u96fb\u8def\u677f\u5728\u9ad8\u6eab\u4e0b\u7684\u8b8a\u5f62\u7387\u4e5f\u6703\u8ddf\u8457\u964d\u4f4e\u7d0450%\u3002\u677f\u5b50\u8b8a\u5f62\u8207\u7ff9\u66f2\u662fBGA\u53caLGA\u7b49\u5927\u9846\u7121\u5f15\u8173\u96f6\u4ef6\u5f62\u6210<a title=\"BGA\u6795\u982d\u6548\u61c9(head-in-pillow,HIP)\u767c\u751f\u7684\u53ef\u80fd\u539f\u56e0\u8207\u6a5f\u7406\" href=\"\/\/m.letratesoro.com\/2012\/02\/bga-hip\/\" rel=\"noopener\" target=\"_blank\">HIP\/HoP\u865b\u710a<\/a>\u7684\u4e00\u5927\u4e3b\u56e0\uff0c\u4e5f\u662f\u9020\u6210<a title=\"(\u7a4d)\u591a\u5c64\u9676\u74f7\u96fb\u5bb9(MLCC)\u7684\u57fa\u672c\u539f\u7406\u8207\u5206\u985e\uff0c\u4ec0\u9ebc\u662fMLCC\uff1f\" href=\"\/\/m.letratesoro.com\/2013\/10\/mlcc\/\" rel=\"noopener\" target=\"_blank\">MLCC<\/a>\u7834\u88c2\u7684\u91cd\u8981\u5147\u624b\u4e4b\u4e00\u3002<\/font><\/p>\n<\/li>\n<\/ul>\n<p align=\"center\"><font color=\"#ff0000\"> \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<\/font> <\/p>\n<h2><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">LTS\u88fd\u7a0b\u7684\u7f3a\u9ede\uff1a<\/font><\/font><\/h2>\n<ul>\n<li>\n<h4><font color=\"#9b00d3\" size=\"4\">\u710a\u9ede\u7684\u9577\u671f\u4fe1\u8cf4\u6027\u4e0d\u4f73\u3002<\/font><\/h4>\n<\/li>\n<\/ul>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">\u4f4e\u6eab\u710a\u932b\u7684\u6700\u5927\u7f3a\u9ede\u5c31\u662f\u5176\u710a\u9ede\u7684\u6a5f\u68b0\u5f37\u5ea6\u4e0d\u4f73\uff0c\u4e5f\u5c31\u662f\u8aaa\u710a\u9ede\u6bd4\u8f03\u8106\u4e14\u5bb9\u6613\u56e0\u61c9\u529b\u4f5c\u7528\u800c\u7522\u751f\u932b\u88c2\u73fe\u8c61\u3002\u8207SnPb\u53caSAC\u5408\u91d1\u710a\u932b\u6bd4\u8f03\u8d77\u4f86\uff0cSnBi\u5408\u91d1\u7684\u710a\u932b\u5f37\u5ea6\u5c31\u986f\u5f97\u975e\u5e38\u4e0d\u8010\u51b7\u71b1\u885d\u64ca(thermal shock)\u8207\u6454\u843d\u649e\u64ca(impact drop)\u3002<\/font><\/p>\n<\/blockquote>\n<ul>\n<li>\n<h4><font size=\"4\">\u56de\u710a\u88fd\u7a0b\u4e2d\u5bb9\u6613\u7522\u751fHot-tearing(\u71b1\u88c2\u7e2b\u3001\u71b1\u6495\u88c2)\u7f3a\u9ede\u3002<\/font><\/h4>\n<\/li>\n<\/ul>\n<blockquote>\n<p align=\"justify\"><font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">Hot-tearing\u7f3a\u9ede\u5bb9\u6613\u51fa\u73fe\u5728SAC\u932b\u7403\u8207SnBi\u932b\u818f\u7684\u6df7\u5408\u710a\u63a5\u88fd\u7a0b\u7684PCB\u710a\u588a\u8868\u9762\uff0c\u5176\u5be6<font size=\"4\" face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\">Hot-tearing<\/font>\u4e5f\u5bb9\u6613\u51fa\u73fe\u5728\u7121\u925b\u8207\u932b\u925b\u7684\u6df7\u5408(hybrid)\u88fd\u7a0b\u4e2d\uff0c\u5c24\u5176\u597d\u767c\u5728BGA\u9019\u985e\u5df2\u7d93\u6709\u9810\u710a\u932b\u7684\u96f6\u4ef6\u710a\u9ede\u3002\u9019\u662f\u56e0\u70ba\u5728\u710a\u63a5\u7684\u904e\u7a0b\u4e2d\uff0cSAC\u932b\u7403\u7684\u7194\u9ede\u8f03\u9ad8\uff0c\u4e0d\u6613\u7194\u5316\uff0c\u5c31\u7b97\u7194\u5316\u5f8c\u5728\u51b7\u537b\u7684\u904e\u7a0b\u4e2d\u4e5f\u6703\u8f03\u65e9\u56fa\u5316\uff0c\u800cSnBi\u932b\u818f\u5247\u4e00\u5b9a\u6703\u5728\u56de\u710a\u7684\u904e\u7a0b\u4e2d\u7194\u5316\uff0c\u51b7\u537b\u6642\u4e5f\u6703\u6bd4SAC\u66f4\u6162\u56fa\u5316\u3002\u60f3\u50cf\u4e00\u4e0b\u5728\u56de\u710a\u7210\u7684\u51b7\u537b\u904e\u7a0b\u4e2d\uff0cBGA\u932b\u7403\u5df2\u7d93\u56fa\u5316\u6216\u6839\u672c\u5c31\u672a\u7194\u5316\uff0c\u53ea\u5269\u4e0b\u4e00\u5c0f\u90e8\u5206\u5448\u73fe\u6f3f\u614b\u7684SnBi\u710a\u932b\uff0c\u9019\u6642PCB\u53caBGA\u8f09\u677f\u4e5f\u5f9e\u9ad8\u6eab\u7684\u8b8a\u5f62\u4e2d\u6f38\u6f38\u56de\u5fa9\uff0c\u4e00\u65e6\u9ad8\u6eab\u6642BGA\u8f09\u677f\u8207PCB\u7684\u9593\u9699\u8f03\u5c0f(\u8b8a\u5f62)\u800c\u56de\u6eab\u5f8c\u9593\u9699\u8b8a\u5927(\u8b8a\u5f62\u56de\u5fa9)\uff0c\u5c31\u6703\u62c9\u626f\u90a3\u4e9b\u9084\u672a\u4f86\u5f97\u53ca\u5b8c\u5168\u56fa\u5316\u7684\u6f3f\u614bSnBi\u710a\u932b\uff0c\u65bc\u662f\u5f62\u6210\u50cf\u662f\u6495\u626f\u904e\u7684Hot-tearing\u88c2\u7e2b\u3002<\/font><\/p>\n<\/blockquote>\n<h2 align=\"justify\"><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">SAC\u5408\u91d1\u7684BGA\u932b\u7403\u8207\u4f4e\u6eab\u932b\u818f(LTS)\u6df7\u7528\u6642\u8a72\u4f7f\u7528\u4f55\u7a2e\u6eab\u5ea6\u66f2\u7dda(temperature profile)\uff1f<\/font><\/font><\/h2>\n<p align=\"justify\"><font size=\"4\">\u5176\u5be6<strong><font color=\"#ff0000\">\u4f7f\u7528\u4f4e\u6eab\u932b\u818f(LTS)\u6642\u6700\u597d\u914d\u5408\u540c\u6642\u4f7f\u7528\u4f4e\u6eab\u932b\u7403\u53ca\u4f4e\u6eabprofile<\/font><\/strong>\uff0c\u9019\u6a23\u624d\u80fd\u53d6\u5f97\u4f4e\u6eab\u932b\u818f\u7684\u6240\u6709\u597d\u8655\u8207\u6700\u4f73\u7684\u710a\u63a5\u6548\u679c\u8207\u54c1\u8cea\u3002\u4e0d\u904e\u8feb\u65bc\u73fe\u5be6\u7684\u7121\u5948\uff0c\u76ee\u524d\u5e02\u9762\u4e0a\u5e7e\u4e4e\u62ff\u4e0d\u5230\u4f4e\u6eab\u932b\u7403\u7684BGA\uff0c\u6240\u4ee5\u53ea\u597d\u9000\u800c\u6c42\u5176\u6b21\uff0c\u6df7\u7528\u4f4e\u6eab\u932b\u818f(LTS)\u8207SAC\u5408\u91d1\u7684BGA\u932b\u7403\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5982\u679c\u60f3\u8981\u53d6\u5f97SAC\u8207\u4f4e\u6eab\u932b\u818f\u6df7\u7528\u7684\u6700\u4f73\u54c1\u8cea\u6548\u679c\uff0c\u5c31\u5f97\u60f3\u8fa6\u6cd5\u964d\u4f4eHot-tearing\u6240\u9020\u6210\u7684\u5f71\u97ff\uff0c\u800c\u5176\u6700\u597d\u7684\u6eab\u5ea6profile\u5247\u70ba\u6cbf\u7528SAC\u7684\u6eab\u5ea6profile\uff0c\u56e0\u70ba\u9ad8\u6eabprofile\u53ef\u4ee5\u540c\u6642\u7194\u5316SAC\u8207SnBi\u5408\u91d1\uff0c\u8b93SAC\u6709\u6a5f\u6703\u64f4\u6563\u81f3SnBi\u5408\u91d1\u5340\u57df\uff0c\u9032\u800c\u6539\u8b8aSnBi\u914d\u65b9\u7684\u5408\u91d1\u6bd4\u7387\uff0c\u9019\u6a23\u5c31\u6709\u6a5f\u6703\u53ef\u4ee5\u7a0d\u7a0d\u62c9\u5347SnBi\u5340\u57df\u7684\u56fa\u5316\u6eab\u5ea6\uff0c\u53e6\u5916\u5efa\u8b70\u8981\u52a0\u901f\u5cf0\u503c\u6eab\u5ea6\u5f8c\u7684\u51b7\u537b\u901f\u7387\uff0c\u5c24\u5176\u662f\u52a0\u901f217\u02daC(SAC305)\u5230138\u00b0C(Sn42Bi58)\u4e4b\u9593\u7684\u964d\u6eab\u901f\u7387\uff0c\u76ee\u7684\u662f\u5728SAC\u710a\u932b\u5340\u57df\u56fa\u5316\u5f8c\uff0c\u8b93SnBi\u710a\u932b\u5340\u57df\u53ef\u4ee5\u5728\u6700\u77ed\u6642\u9593\u5167\u4e5f\u8ddf\u8457\u99ac\u4e0a\u56fa\u5316\u3002\u4e0d\u904e\u9019\u9ebc\u4e00\u4f86\u5c31\u5931\u53bb\u4e86\u4f7f\u7528LTS\u7684\u6240\u6709\u512a\u9ede\uff0c\u800c\u4e14\u710a\u932b\u5f37\u5ea6\u9084\u6c92\u6709SAC\u5408\u91d1\u4f86\u5f97\u597d\uff0c\u9084\u4e0d\u5982\u76f4\u63a5\u4f7f\u7528SAC\u932b\u818f\u3002\u6240\u4ee5\uff0c\u4ee5\u4e0a\u6240\u8a00\u7684\u6839\u672c\u5c31\u662f\u4e00\u5806\u5ee2\u8a71\u561b\uff01XD<\/font><\/p>\n<p align=\"center\"><font color=\"#ff0000\">\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<\/font> <\/p>\n<p align=\"justify\"><font size=\"4\">\u76f8\u4fe1\u5927\u90e8\u5206\u6703\u9078\u7528\u4f4e\u6eab\u932b\u818f\u7684\u60c5\u6cc1\uff0c\u90fd\u662f\u56e0\u70ba\u96f6\u4ef6\u7121\u6cd5\u627f\u53d7SAC\u7684\u9ad8\u6eabprofile\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\u53ea\u80fd\u9078\u7528\u4f4e\u6eab\u932b\u818f\u7684\u4f4e\u6eabprofile\uff0c\u500b\u4eba\u5efa\u8b70\u5728\u4e0d\u5f71\u97ff\u710a\u63a5\u54c1\u8cea\u7684\u60c5\u6cc1\u4e0b\u8981\u76e1\u91cf\u964d\u4f4e\u56de\u710a\u7684\u5cf0\u503c\u6eab\u5ea6\uff0c\u5176\u76ee\u7684\u662f\u70ba\u4e86\u964d\u4f4ePCB\u53caBGA\u8f09\u677f\u5728\u56de\u710a\u6642\u7684\u71b1\u8b8a\u5f62\u91cf\uff0c\u800c\u540c\u6642\u9084\u8981\u52a0\u901f\u56de\u710a\u5cf0\u503c\u6eab\u5ea6\u5f8c\u7684\u51b7\u537b\u901f\u7387\uff0c\u76ee\u7684\u7576\u7136\u4e5f\u662f\u70ba\u4e86\u5728\u677f\u5b50\u8b8a\u5f62\u56de\u5fa9\u524d\u5c31\u6436\u5148\u56fa\u5316\u4f4e\u6eab\u710a\u932b\uff0c\u4e0d\u904e\u5982\u679c\u904e\u5ea6\u52a0\u901f\u51b7\u537b\u901f\u7387\u53ef\u80fd\u6709\u60e1\u5316BGA\u710a\u932b\u7834\u88c2\u7684\u98a8\u96aa\uff0c\u5efa\u8b70\u61c9\u78ba\u5be6\u8a55\u4f30\uff0c\u505a\u904e\u4fe1\u8cf4\u6027\u6e2c\u8a66\u6bd4\u8f03\u5f8c\u9078\u51fa\u4e00\u500b\u8f03\u4f73\u7684\u6eab\u5ea6\u51b7\u537b\u901f\u7387\u624d\u57f7\u884c\uff0c\u81f3\u65bc\u5982\u4f55\u8a55\u4f30LTS\u7684\u710a\u932b\u6027\uff0c\u53f0\u7063\u6709\u5e7e\u5bb6\u5be6\u9a57\u5ba4\u90fd\u6709\u985e\u4f3c\u7684\u670d\u52d9\uff0c\u53ef\u4ee5\u5148\u8aee\u8a62\u9019\u4e9b\u5be6\u9a57\u5ba4\u3002\u4e0d\u5efa\u8b70\u8abf\u5347\u56de\u710a\u5cf0\u503c\u6eab\u5ea6\uff0c\u56e0\u70ba\u6eab\u5ea6\u8d8a\u9ad8\uff0cPCB\u53caBGA\u8f09\u677f\u7684\u8b8a\u5f62\u91cf\u5c31\u6703\u8d8a\u5927\u3002<\/font><\/p>\n<h2><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">\u5982\u4f55\u52a0\u5f37LTS\u7684\u6a5f\u68b0\u5f37\u5ea6\uff1f\u52a0\u5f37\u710a\u932b\u5f37\u5ea6\uff1f<\/font><\/font><\/h2>\n<p align=\"justify\"><font size=\"4\"><img decoding=\"async\" style=\"margin: 5px 10px 0px 0px; float: left; display: inline;\" src=\"\/\/m.letratesoro.com\/wp-content\/uploads\/images\/Underfill_123A5\/Underfill02_thumb.jpg\" align=\"left\" \/>\u76ee\u524d\u6bd4\u8f03\u53ef\u884c\u7684LTS\u710a\u9ede\u88dc\u5f37\u65b9\u6848\u70ba\u4f7f\u7528<a title=\"Underfill(\u5e95\u90e8\u586b\u5145\u5291)\u7684\u76ee\u7684\u8207\u64cd\u4f5c\u7a0b\u5e8f\" href=\"\/\/m.letratesoro.com\/2011\/04\/bga-csp-underfill\/\" rel=\"noopener\" target=\"_blank\">\u5e95\u90e8\u586b\u5145\u81a0(underfill)<\/a>\uff0c\u9019\u65b9\u6848\u5176\u5be6\u5728CSP(Chip Scale Package)\u53caflip-chip\u4e00\u958b\u59cb\u51fa\u73fe\u7684\u6642\u5019\u5c31\u6709\u4e86\uff0c\u5f8c\u4f86\u4e5f\u61c9\u7528\u5230BGA\u4e0a\u9762\uff0c\u4e00\u822c\u6703\u4f7f\u7528\u74b0\u6c27\u6a39\u8102(epoxy)\u6750\u8cea\u7684\u81a0\u6c34\u9ede\u5728BGA\u6216\u76f8\u4f3c\u96f6\u4ef6\u7684\u908a\u7de3\uff0c\u85c9\u7531<a title=\"\u4ec0\u9ebc\u662f\u6bdb\u7d30\u73fe\u8c61\u3001\u8679\u5438\u539f\u7406\u3001\u6f64\u6fd5\u3001\u4e0d\u6f64\u6fd5\" href=\"\/\/m.letratesoro.com\/2021\/11\/capillary-siphon\/\" rel=\"noopener\" target=\"_blank\">\u6bdb\u7d30\u4f5c\u7528<\/a>\u7684\u539f\u7406\u8b93\u81a0\u6c34\u6ef2\u900f\u4e26\u5145\u6eff\u96f6\u4ef6\u7684\u5e95\u90e8\uff0c\u7136\u5f8c\u52a0\u71b1\u56fa\u5316\uff0c\u9054\u5230\u586b\u5145\u7e2b\u9699\u3001\u5f37\u5316\u710a\u9ede\u7684\u76ee\u7684\uff0c\u5f8c\u4f86\u4e5f\u6709\u4eba\u63a1\u7528\u9ecf\u7a20\u5ea6\u6bd4\u8f03\u9ad8\u7684\u81a0\u6c34\u9078\u64c7\u6027\u9ede\u5728BGA\u7684\u56db\u500b\u89d2\u843d(coner bond)\u6216BGA\u56db\u908a\u7de3(edge bond)\u4f86\u5f37\u5316\u56fa\u5b9a\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5f8c\u4f86\u4e5f\u6709\u6240\u8b02\u7684<strong><font color=\"#9b00d3\">underfilm(\u5e95\u90e8\u586b\u5145\u7247)<\/font><\/strong>\u51fa\u73fe\uff0c\u5728\u677f\u5b50\u5370\u5237\u932b\u818f\u5f8c\u900f\u904eSMT\u8cbc\u7247\u6a5f\u4f86\u5c07\u5176\u64fa\u653e\u5728PCB\u7684BGA\u4f4d\u7f6e(\u907f\u958b\u710a\u9ede)\uff0c\u7136\u5f8c\u4e0a\u9762\u624d\u653e\u7f6eBGA\uff0c\u6700\u5f8c\u8207BGA\u4e00\u8d77\u901a\u904e\u56de\u710a\u7210\u9ad8\u6eab\u4f86\u878d\u5316\u81a0\u7247\u586b\u5145\u7a7a\u9699\uff0c\u51b7\u537b\u5f8c\u51dd\u56fa\u3002\u4e0d\u904e\u8981\u6ce8\u610f\u7684\u662f\uff0cunderfill\u90fd\u662f\u5728\u677f\u5b50\u7d44\u88dd\u5b8c\u6210\u4e14\u529f\u80fd\u6e2c\u8a66\u7121\u8aa4\u5f8c\u624d\u6703\u4f5c\u696d\uff0c\u800cunderfilm\u5247\u662f\u5728SMT\u88fd\u7a0b\u4e2d\u5c31\u6dfb\u52a0\uff0c\u7522\u54c1\u7684\u826f\u7387\u5982\u679c\u4e0d\u9ad8\u7684\u8a71\uff0c\u91cd\u5de5\u5c07\u6703\u975e\u5e38\u9ebb\u7169\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u53e6\u5916\uff0c\u96a8\u8457LTS\u61c9\u7528\u7684\u589e\u52a0\uff0c\u73fe\u5728\u4e5f\u6709\u6240\u8b02\u7684\u3010Epoxy paste\u3011\u53ca\u3010Epoxy flux\u3011\u88fd\u6210\u61c9\u904b\u800c\u751f\u3002\u3010Epoxy paste\u3011\u662f\u5728\u932b\u818f\u4e2d\u6dfb\u52a0epoxy\uff0c\u76f4\u63a5\u5370\u5237\u932b\u818f\u904e\u56de\u710a\u52a0\u71b1\u5c31\u53ef\u4ee5\u4e86\uff0c\u4f46\u65e2\u7136\u662f\u6dfb\u52a0\u5728\u932b\u818f\u4e2d\uff0c\u5176\u7528\u91cf\u5c31\u4e0d\u53ef\u80fd\u591a\uff0c\u5c0dBGA\u96f6\u4ef6\u7684\u710a\u932b\u5f37\u5ea6\u52a0\u5f37\u53ef\u80fd\u6709\u9650\uff0c\u4f46\u5982\u679c\u50c5\u91dd\u5c0d\u7247\u5f0f\u96f6\u4ef6(chip component)\u6216\u662fLED\u71c8\u677f\u4f86\u8aaa\u61c9\u8a72\u9084\u662f\u6703\u6709\u4e9b\u6548\u679c\u7684\u3002\u3010Epoxy flux\u3011\u5247\u63a1\u7528\u932b\u818f\u5370\u5237\u5f8c\u9ede\u81a0\u4f5c\u696d\u518d\u8cbc\u7247\uff0c\u6709\u9ede\u985e\u4f3cunderfilm\u3002\u4ee5\u4e0a\u5169\u7a2e\u6dfb\u52a0Epoxy\u7684\u88fd\u7a0b\u6548\u679c\u5176\u5be6\u90fd\u6709\u5f85\u9032\u4e00\u9032\u9a57\u8b49\uff0c\u800c\u4e14\u90fd\u662f\u5728\u6e2c\u8a66\u524d\u5c31\u5df2\u5b8c\u6210\u4f5c\u696d\uff0c\u5c0d\u826f\u7387\u4e0d\u9ad8\u7684\u7522\u54c1\u4f7f\u7528\u524d\u5efa\u8b70\u659f\u914c\u4f7f\u7528\u3002<\/font><\/p>\n<p align=\"justify\"><font size=\"4\">\u5c31\u5de5\u4f5c\u718a\u81ea\u8eab\u7684\u61c9\u7528\u7d93\u9a57\uff0c\u6dfb\u52a0underfill\u78ba\u5be6\u53ef\u4ee5\u8d77\u5230\u52a0\u5f37BGA\u6297\u61c9\u529b\u7684\u80fd\u529b\uff0c\u4f46\u53ea\u80fd\u5ef6\u7de9\u710a\u932b\u56e0\u70ba\u61c9\u529b\u4f5c\u7528\u6240\u5675\u81f4\u7834\u88c2\u7684\u554f\u984c\uff0c\u800c\u7121\u6cd5\u5b8c\u5168\u6839\u6cbb\uff0c\u4e5f\u5c31\u662f\u8aaa\u4f7f\u7528\u4e00\u6bb5\u6642\u9593\u5f8c\uff0c\u8a72\u51fa\u554f\u984c\u7684\u710a\u9ede\u9084\u662f\u6703\u51fa\u554f\u984c\u3002\u6240\u4ee5\uff0c\u89e3\u9234\u9084\u9808\u7e6b\u9234\u4eba\uff0c\u8981\u60f3\u8fa6\u6cd5\u76e1\u91cf\u964d\u4f4e\u5f71\u97ff\u710a\u9ede\u7684\u61c9\u529b\u4f86\u6e90\u3002<\/font><\/p>\n<p align=\"center\"><font color=\"#ff0000\">\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<\/font> <\/p>\n<h2><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">\u90a3\u4e9b\u7522\u54c1\u6709\u6a5f\u6703\u53ef\u4ee5\u63a1\u7528LTS\u88fd\u7a0b\uff1f<\/font><\/font><\/h2>\n<p align=\"justify\"><font size=\"4\">\u65e2\u7136\u6211\u5011\u5df2\u7d93\u4e86\u89e3\u5230LTS\u88fd\u7a0b\u7522\u54c1\u7684\u710a\u9ede\u6bd4\u8f03\u8106\u3001\u4e0d\u8010\u61c9\u529b\uff0c\u6240\u4ee5\u53ea\u8981\u96fb\u5b50\u7522\u54c1\u7684\u4f7f\u7528\u74b0\u5883\u4e0d\u662f\u8655\u5728\u5287\u70c8\u7684\u71b1\u61c9\u529b(\u9ad8\u4f4e\u6eab\u5faa\u74b0)\u8b8a\u5316\u6216\u6a5f\u68b0\u61c9\u529b(\u6454\u843d\u649e\u64ca)\u4f5c\u7528\uff0c\u4ee5\u53ca\u7522\u54c1\u7121\u9577\u671f\u58fd\u547d\u8a2d\u8a08\u4fdd\u8b49\u9700\u6c42\u4e0b\uff0c\u61c9\u8a72\u90fd\u53ef\u4ee5\u8003\u616e\u5c0e\u5165LTS(\u4f4e\u6eab\u932b\u818f)\u88fd\u7a0b\uff0c\u7562\u7adfLTS\u65e2\u53ef\u4ee5\u7bc0\u80fd\u53c8\u53ef\u4ee5\u7701\u6210\u672c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u696d\u754c\u5f15\u7528LTS\u7684\u6e96\u5247\u53c3\u8003\uff1a<\/font><\/p>\n<ul>\n<li>\n<p align=\"justify\"><font size=\"4\">\u7522\u54c1\u5b89\u88dd\u5f8c\u56fa\u5b9a\u4e0d\u52d5\u8005\u3002\u4e0d\u5efa\u8b70\u624b\u6301\u88dd\u7f6e\u4f7f\u7528\u3002\u624b\u6301\u88dd\u7f6e\u5bb9\u6613\u56e0\u70ba\u96a8\u8eab\u651c\u5e36\u64cd\u4f5c\u800c\u6389\u843d\u9020\u6210\u6a5f\u68b0\u885d\u64ca\u61c9\u529b\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\">\u7522\u54c1\u8a2d\u8a08\u4f7f\u7528\u58fd\u547d\u6700\u597d\u57285\u5e74\u4ee5\u5167\u6216\u66f4\u77ed\u3002\u5efa\u8b70\u8981\u57f7\u884cMTBF(Mean Time Between Failures)\u8a55\u4f30\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\">\u4e3b\u8981\u96f6\u4ef6\u5982\u679c\u6709\u984d\u5916\u61c9\u7528\u710a\u9ede\u88dc\u5f37\u4fdd\u8b77\u6a5f\u5236\u70ba\u4f73\uff0c\u5982\u9ede\u81a0\u6216\u5861\u81a0\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\">IO\u96f6\u4ef6\u5982\u679c\u6709\u984d\u5916\u9632\u63d2\u62d4\u61c9\u529b\u4f5c\u7528\u7684\u6a5f\u69cb\u8a2d\u8a08\u70ba\u4f73\uff0c\u5982\u9632\u904e\u63d2\u3001\u9632\u6416\u6643\u7b49\u6a5f\u69cb\u8a2d\u8a08\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\">\u7522\u54c1\u4f7f\u7528\u74b0\u5883\u6700\u597d\u4f4e\u65bc40\u02daC\uff0c\u6700\u5927\u904b\u4f5c\u6eab\u5ea6\u76e1\u91cf\u4e0d\u8d85\u904e85\u02daC\u3002<\/font><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><font size=\"4\">\u5728\u4e00\u822c\u7684\u5ba4\u5167(indoor)\u74b0\u5883\u4e2d\u4f7f\u7528\uff0c\u7121\u5287\u70c8\u9ad8\u4f4e\u6eab\u6ce2\u52d5\u3002\u4e0d\u5efa\u8b70\u8eca\u7528\u6216\u6236\u5916(outdoor)\u74b0\u5883\u4e2d\u4f7f\u7528\u3002<\/font><\/p>\n<\/li>\n<\/ul>\n<p align=\"justify\"><font size=\"4\">\u76ee\u524d\u770b\u5230LTS\u6bd4\u8f03\u591a\u904b\u7528\u5728LED\u71c8\u4e0a\u9762\uff0cmini-LED\u4e5f\u6709\u5c11\u90e8\u5206\u63a1\u7528\uff0c\u90e8\u5206PC\u7684\u7522\u696d\u4e5f\u5728\u8a55\u4f30\u4e2d\u3002<\/font><\/p>\n<ul><\/ul>\n<h2><font face=\"\u5fae\u8edf\u6b63\u9ed1\u9ad4\"><font style=\"font-weight: bold;\">\u4f4e\u6eab\u88fd\u7a0b\u7684\u672a\u4f86\u767c\u5c55\u8da8\u52e2\uff1f<\/font><\/font><\/h2>\n<p align=\"justify\"><font size=\"4\">\u4ee5\u7bc0\u80fd\u6e1b\u78b3\u7684\u89d2\u5ea6\u4f86\u770bLTS\u932b\u818f\u88fd\u7a0b\u78ba\u5be6\u6bd4\u8f03\u7bc0\u7701\u80fd\u6e90\uff0c\u4e5f\u80fd\u964d\u4f4e\u96f6\u4ef6\u5c0d\u9ad8\u6eab\u5851\u81a0\u6750\u6599\u7684\u8981\u6c42\u7701\u6210\u672c\uff0c\u4f46\u76ee\u524d\u7684LTS\u932b\u818f\u6709\u500b\u81f4\u547d\u7684\u7f3a\u9ede\uff0c\u5c31\u662f\u666e\u904d\u7684\u4fe1\u8cf4\u6027\u4e0d\u4f73\uff0c\u710a\u9ede\u6bd4\u8f03\u8106\uff0c\u6216\u8a31\u5c0d\u4e00\u4e9b\u7d30\u5c0f\u96f6\u4ef6\u4e0d\u6703\u9020\u6210\u592a\u5927\u5f71\u97ff\uff0c\u4f46\u5c0d\u4e00\u4e9b\u6709\u61c9\u529b\u627f\u53d7\u9700\u6c42\u7684\u96f6\u4ef6\uff0c\u6bd4\u5982I\/O\u96f6\u4ef6\uff0c\u6216\u662f\u7522\u54c1\u53d7\u5916\u529b\u4f5c\u7528\u5f8c\u53ef\u80fd\u5f4e\u66f2\u96fb\u8def\u677f\u7684\u7522\u54c1\uff0c\u6216\u662f\u7d93\u5e38\u8655\u65bc\u9707\u52d5\u6216\u662f\u71b1\u61c9\u529b\u4f5c\u7528\u4e0b\u7684\u7522\u54c1\uff0c\u5c31\u4e0d\u592a\u9069\u5408LTS\u88fd\u7a0b\uff0c\u53ea\u80fd\u8aaaLTS\u932b\u818f\u96d6\u7136\u80fd\u7b26\u5408\u7bc0\u80fd\u6e1b\u78b3\u8a34\u6c42\uff0c\u4f46\u4f9d\u7136\u9084\u6709\u5f88\u9577\u7684\u8def\u8981\u8d70\uff0c\u4e5f\u6216\u8a31LTS\u6700\u7d42\u7121\u6cd5\u5b8c\u5168\u53d6\u4ee3SAC\uff0c\u6bd4\u8f03\u53ef\u80fd\u662fLTS\u8207SAC\u4e26\u884c\u3002<\/font><\/p>\n<hr \/>\n<p><font size=\"4\">\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>     <br \/><a href=\"\/\/m.letratesoro.com\/2010\/11\/solder-paste-selection\/\"><font size=\"4\">\u5982\u4f55\u6311\u9078\u932b\u818f (Solder paste selection)<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2013\/07\/hotbar-low-temperature\/\"><font size=\"4\">\u4f4e\u6eab\u932b\u818f\u88fd\u4f5cHotBar\u710a\u63a5\u7684\u53ef\u884c\u6027\u8a55\u4f30<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2013\/04\/solder-paste\/\"><font size=\"4\">\u4ecb\u7d39\u8a8d\u8b58\u3010\u932b\u818f(solder paste)\u3011\u7684\u57fa\u672c\u77e5\u8b58<\/font><\/a>     <br \/><a href=\"\/\/m.letratesoro.com\/2016\/05\/sn-bi-sn-bi-ag\/\"><font size=\"4\">\u710a\u63a5\u63a1\u7528\u7121\u925b\u4f4e\u6eab\u932b\u818fSnBi, SnBiAg\u7684\u76ee\u7684\uff1f<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u904e\u53bb\u70ba\u4e86\u56e0\u61c9\u6b50\u76df\u7684\u300c\u6709\u5bb3\u7269\u8cea\u9650\u7528\u6307\u4ee4\uff08Restr &#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,22,4,123],"tags":[218,75],"aioseo_notices":[],"views":7357,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10440"}],"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=10440"}],"version-history":[{"count":22,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10440\/revisions"}],"predecessor-version":[{"id":10496,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10440\/revisions\/10496"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=10440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=10440"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=10440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}