{"id":10617,"date":"2023-04-12T08:23:00","date_gmt":"2023-04-12T00:23:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=10617"},"modified":"2024-01-01T15:37:42","modified_gmt":"2024-01-01T07:37:42","slug":"pcb-msd-msl","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2023\/04\/pcb-msd-msl\/","title":{"rendered":"PCB\u662f\u6fd5\u654f\u96f6\u4ef6(MSD)\u55ce\uff1fPCB\u4e5f\u6709\u6fd5\u654f\u7b49\u7d1a(MSL)\u55ce\uff1f"},"content":{"rendered":"
<\/font><\/p>\n \u56b4\u683c\u4e0a\u4f86\u8aaa\uff0cPCB\u4e0d\u662f\u300c\u6fd5\u654f\u96f6\u4ef6(MSD, Moisture Sensitive Devices)<\/a>\u300d\uff0c\u56e0\u70ba\u5728IPC-J-STD-020<\/a>\u53caIPC-J-STD-033<\/a>\u9019\u5169\u4efd\u6587\u4ef6\u4e2d\u6240\u898f\u7bc4\u7684\u6fd5\u654f\u96f6\u4ef6\u90fd\u53ea\u662f\u91dd\u5c0d\u975e\u5bc6\u5c01\u56fa\u614b\u7684\u8868\u9762\u8cbc\u7247\u96f6\u4ef6(SMD, Surface Mount Device)\u3002\u4f46\u662f\uff0c\u6ebc\u5ea6\u78ba\u5be6\u53c8\u6703\u5c0dPCB\u9020\u6210\u975e\u5e38\u56b4\u91cd\u7684\u5f71\u97ff\uff0c\u5c31\u5982\u540c\u6fd5\u654f\u96f6\u4ef6\uff0c\u4e00\u65e6PCB\u5438\u6fd5\u53d7\u6f6e\u5f8c\u53c8\u5feb\u901f\u9032\u5165\u9ad8\u6eab\u6642\u5c31\u6703\u6709\u300c\u5206\u5c64(de-lamination)\u300d\u53ca\u767c\u751f\u300c\u7206\u7c73\u82b1\u6548\u61c9(Popcorn Effect)<\/a>\u300d\u7684\u98a8\u96aa\uff0c\u56e0\u6b64\uff0c\u4e00\u822cPCB\u90fd\u9700\u8981\u4e7e\u71e5\u8655\u7406\u4e26\u4f7f\u7528\u771f\u7a7a\u9632\u6f6e\u5305\u88dd(MBB, Moisture Barrier Bag)\u4f86\u5b58\u653e\uff0c\u800cPCB\u5438\u6fd5\u53d7\u6f6e\u5f8c\u4e5f\u9700\u8981\u70d8\u70e4\u624d\u80fd\u9032\u884c\u9ad8\u6eab\u7684\u710a\u63a5\u88fd\u7a0b\u3002<\/font><\/p>\n <\/p>\n IPC\u91dd\u5c0dPCB\u7684\u5132\u5b58\u8207\u4f5c\u696d\u7279\u5225\u5236\u5b9a\u4e86\u4e00\u4efd\u5de5\u696d\u6a19\u6e96IPC-1602\uff08\u53d6\u4ee3IPC-1601\uff09<\/font><\/b>\uff0c\u9019\u4efd\u6587\u4ef6\u5176\u5be6\u5927\u91cf\u53c3\u8003IPC-J-STD-033\u5167\u5bb9\uff0c\u4e26\u898f\u7bc4PCB\u5305\u88dd\u6642\u9700\u4f7f\u7528\u9632\u6f6e\u5305\u88dd(MBB)\u4e14\u5167\u7f6e\u6fd5\u5ea6\u6307\u793a\u5361(HIC, Humidity Indicator Card)\u4ee5\u53ca\u4e7e\u71e5\u5291(desiccant)\uff0c\u66f4\u898f\u5b9aPCB\u53d7\u6f6e\u5f8c\u7684\u5efa\u8b70\u70d8\u70e4(baking)\u689d\u4ef6\uff0c\u4e0d\u904e\u5176\u70d8\u70e4\u689d\u4ef6\u4e26\u4e0d\u662f\u4f9d\u7167PCB\u7684\u539a\u5ea6\uff0c\u800c\u662f\u53d6\u6c7a\u65bcPCB\u7684\u4e0d\u540c\u8868\u9762\u8655\u7406(finishes)\uff0c\u56e0\u70ba\u76f8\u540c\u7684\u6eab\u5ea6\u8207\u6642\u9593\u6703\u5c0d\u4e0d\u540c\u8868\u9762\u8655\u7406\u7684\u6750\u8cea\u7522\u751f\u4e0d\u540c\u7684\u54c1\u8cea\u5f71\u97ff\u3002<\/font><\/p>\n \u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font><\/p>\n \u4e5f\u5c31\u662f\u8aaaPCB\u96d6\u7136\u4e0d\u662f\u6fd5\u654f\u96f6\u4ef6\uff0c\u4f46\u6211\u5011\u537b\u5fc5\u9808\u4ee5\u985e\u4f3c\u6fd5\u654f\u96f6\u4ef6\u7684\u65b9\u6cd5\u4f86\u7ba1\u63a7\u5b83\uff0c\u7576\u5b83\u66b4\u9732\u65bc\u5927\u6c23\u74b0\u5883\u904e\u4e45\uff0c\u4ecd\u7136\u6703\u5438\u6fd5\u4e26\u9700\u8981\u4ee5\u70d8\u70e4(bake)\u7684\u65b9\u5f0f\u4f86\u5c0dPCB\u9032\u884c\u53bb\u6fd5\u9664\u6f6e\u3002<\/font><\/p>\n \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><\/em><\/p>\n \u81f3\u65bcPCB\u662f\u5426\u6709\u6fd5\u654f\u7b49\u7d1a(Moisture Sensitive Level)\uff1f\u6587\u4ef6\u4e2d\u4e26\u672a\u660e\u78ba\u8aaa\u660e\uff0c\u6587\u4ef6\u4e2d\u50c5\u6307\u51faPCB\u7684\u6fd5\u654f\u7b49\u7d1a\u9700\u4ee5PCB\u7684\u6a39\u8102(resin)\u6750\u6599\u4f86\u5224\u5b9a\uff0c\u800c\u5efa\u8b70\u7684\u5224\u65b7\u6a19\u6e96\u5247\u70baPCB\u7684\u542b\u6c34\u91cf\uff0c\u5982\u679c\u710a\u932b\u7684\u6700\u9ad8\u6eab\u5ea6\u53ef\u80fd\u9ad8\u9054260\u2103\u6642\uff0c\u5efa\u8b70\u542b\u6c34\u7387(MAMC, Maximum Acceptable Moisture Content)\u70ba\u91cd\u91cf\u6bd4\u76840.1%(\u4ee5\u4e0b\u7121\u925b\u88fd\u7a0b)\uff0c\u5982\u679c\u710a\u932b\u6700\u9ad8\u6eab\u5ea6\u53ea\u6709230\u2103\u6642\uff0c\u5efa\u8b70\u542b\u6c34\u7387(MAMC)\u70ba\u91cd\u91cf\u6bd4\u76840.5%\u4ee5\u4e0b(\u542b\u925b)\u3002\u800c\u542b\u6c34\u7387\u7684\u91cf\u6e2c\u65b9\u6cd5\u5247\u898f\u5b9a\u5728IPC-TM-650\u6587\u4ef6\u4e2d\u3002<\/font><\/p>\n \u6240\u4ee5\uff0c\u5982\u679c\u4f60\u9084\u60f3\u554fPCB\u7684\u6fd5\u654f\u7b49\u7d1a\u70ba\u4f55\uff1f\u6700\u597d\u7684\u65b9\u6cd5\u5c31\u662f\u8a62\u554f\u4f60\u7684PCB\u4f9b\u61c9\u5546\uff0c\u8acb\u4f9b\u61c9\u5546\u4f9d\u64da\u677f\u6750\u7684\u6a39\u8102\u6e2c\u8a66\u542b\u6c34\u7387\u5f8c\uff0c\u63d0\u4f9bPCB\u53ef\u4ee5\u66b4\u9732\u7684\u7522\u7dda\u8eca\u9593(shop floor)\u74b0\u5883\u6eab\u6ebc\u5ea6\uff0c\u4ee5\u53ca\u66b4\u9732\u65bc\u8eca\u9593\u591a\u4e45\u5f8c\u9700\u8981\u91cd\u65b0\u70d8\u70e4\u7684\u6e96\u5247\u3002<\/font><\/p>\n \u5ef6\u4f38\u95b1\u8b80\uff1a<\/font><\/p>\n \u56b4\u683c\u4e0a\u4f86\u8aaa\uff0cPCB\u4e0d\u662f\u300c\u6fd5\u654f\u96f6\u4ef6(MSD, Mo …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117,20,16,22],"tags":[214,54,146,175],"aioseo_notices":[],"views":4149,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10617"}],"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=10617"}],"version-history":[{"count":12,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10617\/revisions"}],"predecessor-version":[{"id":11020,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/10617\/revisions\/11020"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=10617"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=10617"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=10617"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
PCB\u4e5f\u6709\u6fd5\u654f\u7b49\u7d1a\u55ce\uff1f<\/font><\/strong><\/h2>\n
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