{"id":11525,"date":"2024-11-06T08:03:31","date_gmt":"2024-11-06T00:03:31","guid":{"rendered":"\/\/m.letratesoro.com\/?p=11525"},"modified":"2024-11-04T09:42:22","modified_gmt":"2024-11-04T01:42:22","slug":"pcb-hasl-immersion-tin","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2024\/11\/pcb-hasl-immersion-tin\/","title":{"rendered":"PCB\u8868\u9762\u8655\u7406\uff1a\u5674\u932b\u677f\u8207\u5316\u932b\u677f(\u6c89\u932b\u677f)\u7684\u5dee\u7570\u8207\u61c9\u7528"},"content":{"rendered":"

\"PCB\u8868\u9762\u8655\u7406\uff1a\u5674\u932b\u677f\u8207\u5316\u932b\u677f(\u6c89\u932b\u677f)\u7684\u5dee\u7570\u8207\u61c9\u7528\"<\/p>\n

\u5728\u96fb\u5b50\u7d44\u88dd\u88fd\u9020\u7684\u884c\u696d\u4e2d\uff0c\u9285\u7b94\u901a\u5e38\u88ab\u7528\u4f86\u4f5c\u70ba\u4fe1\u865f\u50b3\u905e\u7684\u4e3b\u8981\u6750\u8cea\uff0c\u7136\u800c\uff0c\u9285\u5728\u8207\u7a7a\u6c23\u63a5\u89f8\u5f8c\u5247\u6975\u5bb9\u6613\u6c27\u5316\uff0c\u9019\u4e0d\u50c5\u6703\u5f71\u97ff\u4fe1\u865f\u50b3\u905e\u7684\u54c1\u8cea\uff0c\u9084\u53ef\u80fd\u5c0d\u710a\u63a5\u5e36\u4f86\u8ca0\u9762\u7684\u5f71\u97ff\u3002\u56e0\u6b64\uff0c\u5728PCB\u7684\u710a\u588a\u4e0a\u901a\u5e38\u6703\u8986\u84cb\u4e00\u5c64\u4fdd\u8b77\u9285\u7b94\u7684\u8868\u9762\u8655\u7406<\/a>\u5c64\uff0c\u4ee5\u9632\u6b62\u6c27\u5316\u3002\u5176\u4e2d\uff0c\u3010<\/span>\u932b\u3011\u662f\u5e38\u898b\u7684\u8868\u9762\u8655\u7406\u6750\u6599\u4e4b\u4e00\uff0c<\/span>\u56e0\u70ba\u5728\u96fb\u8def\u677f\u7d44\u88dd(PCBA)<\/a>\u7684\u904e\u7a0b\u4e2d\uff0c\u6703\u4f7f\u7528\u4ee5\u3010\u932b\u3011\u70ba\u57fa\u790e\u7684\u710a\u818f\u4f86\u5c07\u96fb\u5b50\u96f6\u4ef6\u710a\u63a5\u65bcPCB\u4e0a\uff0c\u4e26\u4e14\u5728\u6b63\u5e38\u60c5\u6cc1\u4e0b\uff0c\u8986\u84cb\u932b\u5c64\u7684\u8868\u9762\u8655\u7406\u9084\u80fd\u589e\u5f37\u710a\u63a5\u6642\u7684\u7194\u5408\u6548\u679c\u3002\u5674\u932b\u677f(HASL)<\/a>\u53ca\u5316\u932b\u677f(Im-Sn)\u662f\u5169\u7a2e\u5e38\u898b\u7684PCB\u8868\u9762\u8655\u7406\u5857\u4f48\u932b\u7684\u6280\u8853\uff0c\u4ed6\u5011\u5728\u6574\u9ad4\u8868\u73fe\u4e0a\u4e5f\u5927\u540c\u5c0f\u7570\uff0c\u4f46\u662f\u5728\u7d30\u7bc0\u53ca\u904b\u7528\u4e0a\u5247\u662f\u6709\u6240\u5340\u5225\u7684\u3002<\/span><\/p>\n

\uff08\u9019\u662f\u4e00\u7bc7\u5fc3\u5f97\u6574\u7406\u6587\uff0c\u5167\u5bb9\u6216\u8a31\u6703\u6709\u4e9b\u932f\u8aa4\uff0c\u6b61\u8fce\u6307\u8b49\uff09<\/span><\/p>\n

<\/p>\n

\u672c\u6587\u5c07\u5f9e\u4ee5\u4e0b\u5e7e\u500b\u9762\u5411\u4f86\u8a73\u7d30\u8aaa\u660e\u5206\u6790\u5674\u932b\u677f(HASL)\u8207\u5316\u932b\u677f\/\u6c89\u932b\u677f(Immersion Tin, Im-Sn)\u7684\u5dee\u7570\u8207\u5340\u5225\u3002<\/span><\/p>\n

1. \u5674\u932b\u677f\u8207\u5316\u932b\u677f\u7684<\/b>\u88fd\u7a0b\u5de5\u85dd\u539f\u7406<\/b><\/span><\/span><\/h2>\n
\n

\u5674\u932b\u677f\u7684\u82f1\u6587\u540d\u7a31\u70baHot Air Solder Leveling\uff0c\u7c21\u7a31HASL\uff0c\u4e2d\u6587\u5be6\u969b\u540d\u7a31\u70ba\u300c\u71b1\u98a8\u710a\u932b\u6574\u5e73\u300d\uff0c\u5b83\u662f\u4e00\u7a2e\u5c07\u9810\u88fdPCB\u6d78\u5165\u76db\u6709\u878d\u7194\u7684\u932b\u6c60\u4e2d\uff0c\u5c07PCB\u6700\u5916\u5c64\u88f8\u9732\u7684\u9285\u8868\u9762\u7528\u932b\u6db2\u6cbe\u9644\u8986\u84cb\u7684\u8655\u7406\u65b9\u5f0f\uff0c\u7136\u5f8c\u6703\u518d\u4ee5\u71b1\u98a8\u5f62\u6210\u7684\u98a8\u5200\u4f86\u53bb\u9664\u591a\u9918\u7684\u932b\u6db2\uff0c\u4e26\u6574\u5e73PCB\u7684\u8868\u9762\u932b\u3002<\/span><\/p>\n

\u5316\u932b\u677f\u7684\u82f1\u6587\u70baImmersion Tin\uff0c\u6211\u5011\u4e00\u822c\u6703\u7c21\u7a31\u70baIm-Sn\uff0c\u4e2d\u6587\u7684\u5be6\u969b\u540d\u7a31\u70ba\u6d78\u934d\u932b\uff0c\u5b83\u662f\u5c07\u9810\u88fdPCB\u6d78\u5165\u542b\u6709\u932b\u96e2\u5b50\u7684\u5316\u5b78\u6eb6\u6db2\u4e2d\uff0c\u8b93\u932b\u96e2\u5b50\u9084\u539f\u6210\u932b\u91d1\u5c6c\u4e26\u6c89\u7a4d\u5728\u9285\u710a\u588a\u8868\u9762\uff0c\u5f62\u6210\u4e00\u5c64\u932b\u91d1\u5c6c\u5c64\uff0c\u6240\u4ee5\u300c\u5316\u932b\u677f\u300d\u53c8\u7a31\u70ba\u300c\u6c89\u932b\u677f\u300d\u3002<\/span><\/p>\n

\u9019\u5169\u7a2e\u932b\u5c64\u8868\u9762\u8655\u7406\u65b9\u5f0f\u7684\u88fd\u7a0b\u5de5\u85dd\u539f\u7406\u4e0d\u540c\uff0c\u5c0e\u81f4\u4e86\u5b83\u5011\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u512a\u7f3a\u9ede\u4e5f\u6709\u6240\u4e0d\u540c\u3002<\/span><\/p>\n<\/blockquote>\n

2. \u5674\u932b\u677f\u8207\u5316\u932b\u677f\u7684<\/b>\u6210\u672c\u548c\u6548\u7387<\/b><\/span><\/span><\/h2>\n
\n

\u5f9e\u6210\u672c\u548c\u6548\u7387\u7684\u89d2\u5ea6\u4f86\u770b\uff0c\u5674\u932b\u677f(HASL)\u7684\u6210\u672c\u76f8\u5c0d\u8f03\u4f4e\uff0c\u751f\u7522\u6548\u7387\u4e5f\u8f03\u9ad8\u3002\u56e0\u70ba\u5674\u932b\u677f\u4f7f\u7528\u7194\u878d\u932b\u6db2\u548c\u71b1\u98a8\u5e73\u6574\uff0c\u751f\u7522\u88fd\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e0d\u9700\u8981\u8907\u96dc\u7684\u8a2d\u5099\u548c\u689d\u4ef6\u3002<\/span><\/p>\n

\u5316\u932b\u677f(\u6c89\u932b\u677f)\u76f8\u5c0d\u5730\u9700\u8981\u8f03\u9ad8\u7684\u8a2d\u5099\u6295\u5165\u548c\u751f\u7522\u6210\u672c\uff0c\u5176\u751f\u7522\u6548\u7387\u76f8\u5c0d\u8f03\u4f4e\u3002<\/span><\/p>\n

\u56e0\u6b64\uff0c\u5728\u9078\u64c7\u5674\u932b\u677f\u9084\u662f\u5316\u932b\u677f\u6642\uff0c\u9700\u8981\u6839\u64da\u5be6\u969b\u7684\u751f\u7522\u9700\u6c42\u548c\u6210\u672c\u9810\u7b97\u4f86\u9032\u884c\u6b0a\u8861\u3002<\/span><\/p>\n<\/blockquote>\n

3. \u5674\u932b\u677f\u8207\u5316\u932b\u677f\u7684<\/b>\u6027\u80fd\u548c\u53ef\u9760\u6027<\/b><\/span><\/span><\/h2>\n
\n

\u5674\u932b\u677f\u56e0\u70ba\u63a1\u7528\u878d\u7194\u932b\u6db2\u71b1\u98a8\u6574\u5e73\u88fd\u7a0b\uff0c\u6240\u4ee5\uff0c\u5176\u932b\u5c64\u7684\u539a\u5ea6\u76f8\u5c0d\u6bd4\u8f03\u539a\uff0c\u4f46\u76f8\u5c0d\u5730\u5176\u5e73\u6574\u5ea6\u4e5f\u6bd4\u8f03\u5dee\uff0c\u8f03\u4e0d\u5229\u65bc\u7d30\u9593\u8ddd\u96f6\u4ef6\u3002<\/span><\/p>\n

\u800c\u5316\u932b\u677f\u56e0\u70ba\u63a1\u7528\u5316\u5b78\u6c89\u7a4d\uff0c\u6240\u4ee5\u932b\u5c64\u8f03\u70ba\u7d30\u7dfb\u4e14\u5e73\u6574\uff0c\u6240\u4ee5\u6bd4\u8f03\u9069\u5408\u7d30\u9593\u8ddd\u96f6\u4ef6\u710a\u63a5\uff0c\u4f46\u6676\u7c92\u7d50\u69cb\u8f03\u70ba\u9b06\u6563\u4e0d\u5920\u7dca\u5be6\uff0c\u932b\u5c64\u539a\u5ea6\u4e5f\u53ef\u80fd\u8f03\u8584\uff0c\u53ef\u80fd\u8f03\u4e0d\u5229\u65bc\u7b2c\u4e8c\u9762\u710a\u932b\uff0c\u56e0\u70ba\u7b2c\u4e00\u6b21\u56de\u710a\u6642\uff0c\u7b2c\u4e8c\u9762\u4e5f\u6703\u751f\u6210IMC\uff0c\u4e00\u65e6\u932b\u5c64\u4e0d\u8db3\u4ee5\u61c9\u4ed8\u5f8c\u7e8c\u7684\u710a\u932b\u6240\u9700\uff0c\u5c31\u6703\u5f31\u5316\u710a\u63a5\u5f37\u5ea6\u3002\uff08\u6839\u64daIPC-4554\u7684\u8981\u6c42\u5316\u932b\u7684\u539a\u5ea6\u70ba\uff1a\u57282.25um\u00b2(3600mils\u00b2)\u710a\u588a\u4e0a\u7684\u5316\u932b\u539a\u5ea6\u4e0d\u5f97\u4f4e\u65bc1.0um(40u\u201d)\uff0c\u800c\u4e14\u9019\u500b\u539a\u5ea6\u9084\u5fc5\u9700\u8981\u63a7\u5236\u57284\u500b\u6a19\u6e96\u5dee\u7684\u6700\u5c0f\u539a\u5ea6\u5167\uff0c\u5178\u578b\u7684\u5316\u932b\u5c64\u539a\u5ea6\u7bc4\u570d\u57281.0\u00b5m~1.3\u00b5m(40~51\u00b5\u201d)\uff0c\u800c\u4e00\u822cIMC\u751f\u6210\u7684\u539a\u5ea6\u5247\u843d\u57281.0~5.0\u00b5m\u4e4b\u9593\uff0c\u5f88\u660e\u986f\u5730\uff0c\u7576\u4f7f\u7528\u5316\u932b\u677f\u65bc\u96d9\u9762SMT\u88fd\u7a0b\u6642\uff0c\u5176\u7b2c\u4e8c\u9762\u7684\u932b\u5c64\u5f88\u6709\u53ef\u80fd\u6703\u5728\u7b2c\u4e00\u6b21\u904e\u56de\u710a\u6642\u5c31\u5168\u90e8\u6d88\u8017\u4e00\u7a7a\u5f62\u6210IMC\uff0c\u800c\u7121\u6cd5\u8207\u932b\u818f\u4e2d\u7684\u932b\u5f62\u6210\u826f\u597d\u7684\u7d50\u69cb\uff0c\u9664\u975e\u8981\u6c42\u7279\u5225\u52a0\u539a\u5316\u932b\u7684\u539a\u5ea6\uff0c\u5426\u5247\u7b2c\u4e8c\u56de\u710a\u9762\u7684\u710a\u932b\u54c1\u8cea\u5f88\u6709\u6a5f\u6703\u51fa\u554f\u984c\u3002\uff09<\/span><\/p>\n

\u7136\u800c\uff0c\u4e0d\u8ad6\u662f\u5674\u932b\u677f\u6216\u6c89\u932b\u677f\uff0c\u7576\u4ed6\u5011\u4f7f\u7528\u65bc\u96d9\u9762SMT\u88fd\u7a0b\u6642\uff0c\u56e0\u70ba\u7b2c\u4e8c\u9762\u5728\u7b2c\u4e00\u6b21\u56de\u710a\u6642\u5c31\u8ddf\u8457\u7d93\u6b77\u4e86\u4e00\u6b21\u56de\u710a\u9ad8\u6eab\u7684\u6d17\u79ae\uff0c\u6240\u4ee5\u7b2c\u4e8c\u9762\u90fd\u6975\u5bb9\u6613\u767c\u751f\u932b\u5c64\u91cd\u65b0\u7194\u878d\u800c\u7522\u751f\u932b\u73e0\u6216\u985e\u4f3c\u6c34\u73e0\u53d7\u91cd\u529b\u5f71\u97ff\u5f62\u6210\u6ef4\u843d\u7403\u72c0\u7684\u932b\u9ede\uff0c\u5bb9\u6613\u9020\u6210\u8868\u9762\u66f4\u4e0d\u5e73\u6574\uff0c\u9032\u800c\u5f71\u97ff\u710a\u932b\u554f\u984c\uff0c\u7279\u5225\u662f\u5674\u932b\u677f\u7684\u932b\u4e00\u822c\u8f03\u539a\uff0c\u66f4\u5bb9\u6613\u9020\u6210\u7b2c\u4e8c\u9762\u7684\u8868\u9762\u4e0d\u5e73\u6574\u3002<\/span><\/p>\n

\u53e6\u5916\uff0c\u7b2c\u4e8c\u9762(2nd side)\u53ef\u80fd\u5728\u7b2c\u4e00\u6b21\u56de\u710a(1st reflow)\u5f8c\u5c31\u958b\u59cb\u767c\u751f\u932b\u6c27\u5316\u72c0\u6cc1(\u932b\u5c64\u8868\u9762\u5f62\u6210\u920d\u5316\u932b)\uff0c\u6216\u662fIMC\u589e\u539a\u7684\u5f71\u97ff\u800c\u5403\u6389\u539f\u672c\u7684\u932b\u5c64\uff0c\u9032\u800c\u5f71\u97ff\u5230\u7b2c\u4e8c\u9762\u7684\u710a\u6027\u554f\u984c\uff0c\u5c24\u5176\u5bb9\u6613\u767c\u751f\u5728\u932b\u5c64\u539a\u5ea6\u4e0d\u8db3\u7684\u677f\u5b50\u4e0a\u3002<\/span><\/p>\n

\u7d9c\u5408\u4e0a\u8ff0\u8aaa\u660e\uff0c\u5728\u6027\u80fd\u548c\u53ef\u9760\u6027\u65b9\u9762\uff0c\u5674\u932b\u677f\u548c\u6c89\u932b\u677f\u5404\u6709\u512a\u52e2\uff0c\u6574\u7406\u5982\u4e0b\uff1a<\/span><\/p>\n