![](\"\/\/m.letratesoro.com\/wp-content\/uploads\/2010\/08\/ShieldingFrameDeformation02.jpg\")
![](\"\/\/m.letratesoro.com\/wp-content\/uploads\/2010\/08\/ShieldingFrameDeformation01.jpg\")
<\/p>\n<\/p>\n
\u9019\u662f\u5728\u7db2\u8def\u4e0a\u770b\u5230\u7684\u554f\u984c\uff0c\u95dc\u65bc\u5c4f\u853d\u6846\u3001\u5c4f\u853d\u84cb\u3001\u5c4f\u853d\u7f69\u767c\u751f\u7a7a\u710a\/\u5047\u710a<\/a>\u6642\u7684\u89e3\u6c7a\u63aa\u65bd\u3002\u5176\u554f\u984c\u61c9\u8a72\u4e5f\u662f\u8a31\u591a\u751f\u7522\u624b\u6a5f\u677f\u6216\u662f\u751f\u7522RF\u7522\u54c1\u6703\u9047\u5230\u7684\u554f\u984c\uff0c\u6240\u4ee5\u5de5\u4f5c\u718a\u5c31\u628a\u500b\u4eba\u7d93\u9a57\u5728\u9019\u88e1\u5206\u4eab\uff0c\u5927\u90e8\u5206\u7684\u5167\u5bb9\u4e5f\u90fd\u53ef\u4ee5\u5728\u6211\u7684\u90e8\u843d\u683c\u4e2d\u627e\u5230\u76f8\u95dc\u7684\u8b70\u984c\uff0c\u9577\u671f\u770b\u6211\u683c\u5b50\u7684\u670b\u53cb\u5c31\u8df3\u904e\u9019\u7bc7\u6587\u7ae0\u5427\u3002\uff08\u4ee5\u4e0a\u7167\u7247\u70ba\u985e\u4f3c\u6848\u4f8b\u800c\u975e\u672c\u6587\u7ae0\u7684\u554f\u984c\u6848\u4ef6\uff09<\/font><\/p>\n <\/p>\n \u7db2\u53cb\u7684\u554f\u984c\uff1a\u5c4f\u853d\u6846\u3001\u5c4f\u853d\u84cb\u3001\u5c4f\u853d\u7f69\u767c\u751f\u5047\u710a\u3001\u7a7a\u710a<\/strong><\/font><\/p>\n \u8a31\u591a\u624b\u6a5f\u677f\u90fd\u9700\u8981\u4f7f\u7528\u5c4f\u853d\u7f69(\u84cb\/\u7f69)\uff0c\u9019\u5c0dSMT\u5de5\u85dd\u662f\u4e00\u5927\u6311\u6230\uff0c\u56e0\u70ba\u7a0d\u5fae\u4e00\u4e0d\u5c0f\u5fc3\u5c31\u6703\u51fa\u73fe\u5047\u710a\u3001\u7a7a\u710a\u7684\u554f\u984c\uff0c\u6700\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6cd5\u662f\u5c07\u92fc\u7db2\u958b\u5b54\u5916\u64f4\uff0c\u958b\u5927\u4e00\u9ede\uff0c\u76ee\u7684\u662f\u589e\u52a0\u710a\u932b\u91cf\uff0c\u800c\u9019\u6a23\u4e5f\u78ba\u5be6\u53ef\u4ee5\u8d77\u5230\u4e00\u5b9a\u6539\u5584\u7684\u6548\u679c\uff0c\u4f46\u662f\u537b\u7121\u6cd5\u514b\u670d\u5c4f\u853d\u6846\u56e0\u70ba\u9ad8\u5ea6\u5dee\u800c\u9020\u6210\u7a7a\u710a\/\u5047\u710a\u7684\u554f\u984c\u3002<\/font>\u6216\u662f\u63a1\u7528\u968e\u68af\u5f0f\u5c40\u90e8\u52a0\u539a\u92fc\u7db2(step-up\/step-down)<\/a>\u4f86\u589e\u52a0\u932b\u91cf\uff0c\u4f46\u968e\u68af\u92fc\u7db2\u5c0d\u9130\u8fd1\u7684\u5c0f\u96f6\u4ef6\u537b\u6709\u81f4\u547d\u7684\u5f71\u97ff\uff0c\u5bb9\u6613\u9020\u6210\u5c0f\u96f6\u4ef6\u9023\u932b\u3001\u710a\u63a5\u77ed\u8def\u7684\u554f\u984c\u3002<\/font><\/p>\n \u60f3\u8acb\u554f\u9019\u985e\u554f\u984c\u9084\u6709\u4ec0\u9ebc\u89e3\u6c7a\u63aa\u65bd\uff0c\u9084\u6709\u53ef\u80fd\u662f\u5176\u5b83\u7684\u539f\u56e0\u55ce\uff1f \uff08\u624b\u6a5f\u677f\u6d89\u53ca\u5230 0.4mm fine pitch BGA\u30010201\u985e\u4ef6\uff0c\u92fc\u7db2\u539a\u5ea60.1mm\uff09\u3002<\/font><\/p>\n<\/blockquote>\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\u770b\u5230\u76dc\u6587\u53ef\u4ee5\u767e\u5ea6\u8209\u5831<\/font>\uff09<\/font><\/p>\n \u5de5\u4f5c\u718a\u7684\u56de\u7b54\u53ca\u53ef\u80fd\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/strong><\/font><\/p>\n \u63a1\u7528\u5c4f\u853d\u7f69\u89e3\u6c7aRF\u5e72\u64fe\u554f\u984c\u6642\u901a\u5e38\u6703\u4f7f\u7528\u5c4f\u853d\u6846(frame)\u53ca\u5c4f\u853d\u84cb\/\u7f69(can\/cover)\uff0c\u4f46\u6709\u4e9b\u516c\u53f8\u70ba\u4e86\u89e3\u7701\u6750\u6599\u6210\u672c\uff0c\u6703\u76f4\u63a5\u7701\u6389\u5c4f\u853d\u6846\uff0c\u800c\u76f4\u63a5\u63a1\u7528\u5c07\u5c4f\u853d\u7f69\u710a\u63a5\u65bcPCB\u7684\u65b9\u6848\uff0c\u4f46\u9019\u6a23\u7684\u88fd\u7a0b\u96d6\u7136\u7bc0\u7701\u4e86\u6750\u6599\u6210\u672c\uff0c\u537b\u6709\u8457\u975e\u5e38\u591a\u7684\u7f3a\u9ede\u3002\u56e0\u70baPCB\u4e0a\u9762\u76f4\u63a5\u6253\u4e86\u5c4f\u853d\u7f69\u5f8c\u5c31\u770b\u4e0d\u5230\u5176\u4e0b\u9762\u7684\u96f6\u4ef6\u4e86\uff0c\u6240\u4ee5\u5728PCBA\u5de5\u5ee0\u57f7\u884c\u6642\u5fc5\u9808\u8981\u5c0dSMT\u7684\u710a\u63a5\u88fd\u7a0b\u53ca\u54c1\u8cea\u5f88\u6709\u4fe1\u5fc3\u624d\u884c\uff0c\u5426\u5247\u4e00\u4f46\u767c\u73fe\u554f\u984c\u5c07\u5f88\u96e3\u7dad\u4fee\uff0c\u56e0\u70ba\u5fc5\u9808\u8981\u89e3\u710a\u5c4f\u853d\u7f69\uff1b\u800c\u4e14\u4e00\u65e6\u5728SMT\u6253\u4e86\u5c4f\u853d\u7f69\u4ee5\u5f8c\u5c31\u7121\u6cd5\u5c0d\u5176\u505aAOI(\u81ea\u52d5\u5f71\u50cf\u8fa8\u8b58)\u53caICT(\u7dda\u8def\u6e2c\u8a66)\u7684\u6aa2\u6e2c\uff0c\u5728\u54c1\u8cea\u7ba1\u63a7\u4e0a\u4e5f\u5c11\u4e86\u4e00\u9053\u4fdd\u8b49\u7a0b\u5e8f\u3002<\/font><\/p>\n \u500b\u4eba\u8a8d\u70ba\u6bd4\u8f03\u597d\u7684\u65b9\u6cd5\u662f\u63a1\u7528\u5c4f\u853d\u593e(clip)\u7684\u65b9\u6848\uff0c\u7528\u5c4f\u853d\u593e\u4f86\u53d6\u4ee3\u5c4f\u853d\u6846\uff0c\u7136\u5f8c\u518d\u4eba\u5de5\u52a0\u88dd\u5c4f\u853d\u7f69\uff0c\u9019\u6a23\u4e0d\u4f46\u65b9\u4fbf\u7dad\u4fee\uff0c\u4e5f\u6bd4\u8f03\u5bb9\u6613\u7ba1\u63a7\u54c1\u8cea\uff0c\u50f9\u9322\u4e5f\u6bd4\u5c4f\u853d\u6846\u4fbf\u5b9c\u3002(\u76f8\u95dc\u6587\u7ae0\uff1a <\/font>\u4ecb\u7d39\u4f7f\u7528\u5c4f\u853d\u593e\u4f86\u53d6\u4ee3\u5c4f\u853d\u6846(SMT shielding can clip)<\/font><\/a>)<\/font><\/p>\n \u5982\u679c\u4f60\u9084\u662f\u5805\u6301\u53ea\u4f7f\u7528\u5c4f\u853d\u7f69\u76f4\u63a5\u710a\u63a5\u65bcPCB\u7684\u65b9\u6848\uff0c\u5de5\u4f5c\u718a\u500b\u4eba\u8a8d\u70ba\u63a1\u7528\u3010\u968e\u68af\u5f0f\u92fc\u677f\u3011\u7684\u6548\u679c\u6709\u9650\uff0c\u56e0\u70ba\u624b\u6a5f\u677f\u901a\u5e38\u90fd\u662f\u96f6\u4ef6\u5bc6\u5ea6\u5f88\u9ad8\u7684\u677f\u5b50\u8a2d\u8a08\uff0c\u7919\u65bc\u968e\u68af\u5f0f\u92fc\u677f\u6703\u5c0d\u5176\u9130\u8fd1\u7684\u96f6\u4ef6\u589e\u52a0\u904e\u591a\u932b\u91cf\u81f4\u9020\u6210\u96f6\u4ef6\u77ed\u8def\u554f\u984c\uff0c\u6240\u4ee5\u4e0d\u80fd\u4f7f\u7528\u539a\u5ea6\u5dee\u904e\u5927\u7684\u968e\u68af\u5f0f\u92fc\u677f\uff0c\u9019\u9ebc\u4e00\u4f86\u932b\u91cf\u7684\u589e\u52a0\u5c31\u6709\u9650\uff0c\u6709\u6642\u5019\u53cd\u800c\u88fd\u9020\u51fa\u66f4\u591a\u554f\u984c\u3002<\/font><\/p>\n \u4ee5\u4e0b\u63d0\u4f9b\u5e7e\u500b\u53ef\u4ee5\u6539\u5584\u5c4f\u853d\u6846\u5403\u932b\u80fd\u529b\u7684\u7d93\u9a57\uff0c\u4ee5\u4f9b\u53c3\u8003\uff1a \u5982\u679c\u4f60\u6709\u66f4\u597d\u7684\u65b9\u6848\uff0c\u4e5f\u6b61\u8fce\u7559\u4e0b\u60a8\u7684\u5bf6\u8cb4\u610f\u898b\u3002<\/font><\/p>\n \u5ef6\u4f38\u95b1\u8b80\uff1a<\/font><\/p>\n \u9019\u662f\u5728\u7db2\u8def\u4e0a\u770b\u5230\u7684\u554f\u984c\uff0c\u95dc\u65bc\u5c4f\u853d\u6846\u3001\u5c4f\u853d\u84cb\u3001\u5c4f\u853d …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,22,3,4],"tags":[103],"aioseo_notices":[],"views":14564,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/2654"}],"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=2654"}],"version-history":[{"count":1,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/2654\/revisions"}],"predecessor-version":[{"id":11212,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/2654\/revisions\/11212"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=2654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=2654"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=2654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
\n
<\/font><\/p>\n\n
\u5c4f\u853d\u6846\u6216\u5c4f\u853d\u7f69\u5403\u932b\u5982\u679c\u8981\u597d\uff0c\u9996\u5148\u5fc5\u9808\u8981\u6c42\u5c4f\u853d\u6846\/\u7f69\u710a\u9ede\u7684\u5e73\u6574\u5ea6(coplanarity)\uff0c\u6700\u597d\u56b4\u683c\u63a7\u5236\u57280.1mm\u4ee5\u5167\uff0c\u751a\u81f3\u8981\u66f4\u5c0f\uff0c\u56e0\u70ba\u4e00\u822c\u7684\u932b\u818f\u92fc\u677f\u7684\u539a\u5ea6\u5927\u6982\u53ea\u67090.10~0.12mm\u800c\u5df2\u3002\u9019\u9ede\u5c0d\u5c4f\u853d\u6846\u7684\u88fd\u9020\u5546\u662f\u4e00\u5927\u8003\u9a57\u3002 <\/font><\/div>\n<\/li>\n\u53ef\u4ee5\u5728\u5bb9\u6613\u7a7a\u710a\u7684\u5730\u65b9\u5c40\u90e8\u63a1\u7528\u300c\u9810\u6210\u5f62\u932b\u7247(preforms)\u300d\u4f86\u589e\u52a0\u932b\u91cf\u3002\u4e0d\u904e\u932b\u7247\u7684\u8cbb\u7528\u4e0d\u4fbf\u5b9c\u5c31\u662f\u4e86\u3002
(\u76f8\u95dc\u6587\u7ae0\uff1a<\/font>\u589e\u52a0\u710a\u932b\u91cf\u7684\u53e6\u4e00\u9078\u64c7 \u2500 Solder preforms (\u9810\u6210\u578b\u932b\u7247)<\/font><\/a>) <\/font><\/div>\n<\/li>\n\u5728\u932b\u818f\u5370\u5237\u5f8c\u589e\u52a0\u932b\u818f\u6aa2\u67e5\u6a5f(SPI)<\/a>\uff0c\u91cd\u9ede\u6aa2\u67e5\u932b\u818f\u91cf\uff0c\u505a\u5230\u662f\u5148\u9810\u9632\u3002 <\/font><\/div>\n<\/li>\n\u4f7f\u7528\u56de\u6d41\u710a\u904e\u7210\u8f09\u5177(carrier\/template)\u4f86\u56fa\u5b9aPCB\uff0c\u7528\u4f86\u5c07\u4f4ePCB\u53d7\u71b1\u5f8c\u7684\u8b8a\u578b\u6a5f\u7387\uff0c\u56e0\u70baPCB\u4e00\u65e6\u8b8a\u5f62\u5c31\u6703\u9020\u6210\u5403\u932b\u4e0d\u826f\u3002\u904e\u7210\u8f09\u5177\u7684\u8cbb\u7528\u4e5f\u4e0d\u4fbf\u5b9c\u5c31\u662f\u4e86\uff0c\u800c\u4e14\u4e00\u500b\u7210\u5b50\u81f3\u5c11\u8981\u670925\u4ee5\u4e0a\u7684\u8f09\u5177\u624d\u80fd\u7dad\u6301\u4e00\u689dSMT\u7dda\u6b63\u5e38\u904b\u8f49\uff0c\u5305\u62ec\u5728\u7210\u5b50\u5167\u4ee5\u53ca\u5f85\u8f49\u5099\u7528\u7684\u6578\u91cf\uff0c\u66f4\u91cd\u8981\u7684\u662f\u81f3\u5c11\u5f97\u984d\u5916\u518d\u589e\u52a0\u4e00\u500b\u4eba\u529b\u4f86\u8655\u7406\u904e\u7210\u8f09\u5177\u3002 <\/font><\/div>\n<\/li>\n<\/ol>\n<\/blockquote>\n
\n\n
<\/font><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"