{"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":"

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\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

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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