{"id":1779,"date":"2018-12-17T02:29:46","date_gmt":"2018-12-17T02:29:46","guid":{"rendered":""},"modified":"2018-12-17T10:30:09","modified_gmt":"2018-12-17T02:30:09","slug":"pcb%e5%b8%83%e5%b1%80%e5%8f%8a%e7%84%8a%e6%8e%a5%e5%b1%82%e9%9d%a2%e4%b8%8a%e4%b9%9f%e5%90%8c%e6%97%b6%e8%83%bd%e5%a4%9f%e7%85%a7%e9%a1%be%e8%8a%af%e7%89%87%e7%9a%84%e6%95%a3%e7%83%ad","status":"publish","type":"post","link":"http:\/\/www.szryc.com\/?p=1779","title":{"rendered":"PCB\u5e03\u5c40\u53ca\u710a\u63a5\u5c42\u9762\u4e0a\u4e5f\u540c\u65f6\u80fd\u591f\u7167\u987e\u82af\u7247\u7684\u6563\u70ed"},"content":{"rendered":"

\n\t\u5728\u4e00\u4e9b\u82af\u7247\u5e94\u7528\u4e2d\uff0c\u4f8b\u5982\u7a33\u538b\u5668\uff0c\u5f53\u5668\u4ef6\u6b63\u5728\u5de5\u4f5c\u65f6\uff0c\u9ad8\u53d1\u70ed\u91cf\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002\u5177\u6709\u88f8\u9732\u710a\u76d8\u5c01\u88c5\u662f\u4e00\u79cd\u8010\u70ed\u589e\u5f3a\u578b\u6807\u51c6\u5c3a\u5bf8IC\u5c01\u88c5\uff0c\u5176\u4f18\u70b9\u662f\u9664\u4e86\u4f7f\u7528\u7b28\u91cd\u7684\u6563\u70ed\u7247\u5916\uff0c\u4ece\u6807\u51c6\u7684PCB\u5e03\u5c40\u53ca\u710a\u63a5\u6d41\u7a0b\u4e4b\u4e2d\u4e5f\u53ef\u5b9e\u73b0\u6563\u70ed\u7684\u529f\u80fd\u3002<\/p>\n

\n\t\u88f8\u9732\u710a\u76d8\u4e00\u822c\u66b4\u9732\u5728\u5c01\u88c5\u5e95\u90e8\u3002\u8fd9\u5728\u82af\u7247\u548c\u82af\u7247\u4e4b\u95f4\u63d0\u4f9b\u4e86\u6781\u4f4e\u7684\u70ed\u963b(θJC)\u8def\u5f84\u3002\u5982\u4e0b\u56fe1\u6240\u793a\uff0c\u662f\u5176\u4e2d\u4e00\u79cd\u88f8\u9732\u710a\u76d8\u7684\u8bbe\u8ba1\u3002<\/p>\n

\n\t <\/div>\n

\n\t<\/p>\n

\n\t\u56fe1\uff0c\u88f8\u9732\u710a\u76d8\u82af\u7247\u5185\u90e8\u7ed3\u6784\u793a\u610f\u56fe<\/p>\n

\n\t\u6839\u636e\u7ecf\u9a8c\uff0c\u90e8\u4efd\u58f0\u79f0“\u96f6\u4ef6\u8fc7\u70ed”\u7684\u4e0d\u826f\u96f6\u4ef6\u4e2a\u6848\uff0c\u6700\u540e\u53d1\u73b0\u5e76\u975e\u7ebf\u8def\u7684\u8bbe\u8ba1\u95ee\u9898\uff0c\u53cd\u800c\u662f\u88f8\u9732\u710a\u76d8\u710a\u63a5\u65b9\u9762\u7684\u4e0d\u5584\u5bfc\u81f4\u6563\u70ed\u4e0d\u826f\u3002<\/p>\n

\n\t\u4ee5\u4e0b\u6709\u4e00\u4e9b\u5c0f\u8d34\u58eb\uff0c\u6709\u52a9\u4e8e\u5de5\u7a0b\u5e08\u5728PCB\u5e03\u5c40\u53ca\u710a\u63a5\u5c42\u9762\u4e0a\u4e5f\u540c\u65f6\u80fd\u591f\u7167\u987e\u82af\u7247\u7684\u6563\u70ed\u3002<\/p>\n

\n\t\u5c0f\u8d34\u58eb1\uff1a\u7559\u610f\u5382\u5546\u5efa\u8bae\u4f7f\u7528“SolderMask\u5b9a\u4e49\uff08SolderMask Defined\uff0cSMD\uff09”\u8fd8\u662f“\u975eSolderMask\u5b9a\u4e49\uff08Non-SolderMask Defined\uff0cNSMD\uff09”\u710a\u63a5\u65b9\u6cd5\u3002<\/p>\n

\n\t\u4e24\u79cd\u5b9a\u4e49\u7684\u710a\u63a5\u65b9\u6cd5\u5404\u6709\u7279\u70b9\uff0c\u5982\u4e0b\u56fe2\u6240\u793a\uff1a<\/p>\n

\n\t<\/p>\n

\n\t\u56fe2\uff0c“\u975eSolderMask\u5b9a\u4e49”\u4e0e“SolderMask\u5b9a\u4e49”\u710a\u63a5\u65b9\u6cd5\u7684\u6bd4\u8f83<\/p>\n

\n\t\u4e24\u79cd\u65b9\u6cd5\u5404\u6709\u4f18\u70b9\uff1a“SolderMask\u5b9a\u4e49”\u4e0b\uff0csoldermask\u4f1a\u8986\u76d6\u90e8\u4efd\u710a\u76d8\uff0c\u4ee5\u51cf\u5c11\u96f6\u4ef6\u63a5\u89e6\u540e\u710a\u818f\u88ab\u6324\u538b\u540e\u4e0e\u65c1\u8fb9\u710a\u76d8\u77ed\u8def\u98ce\u9669\uff1b“\u975eSolderMask\u5b9a\u4e49”\u4e2d\u5f00\u5b54\u8f83\u5927\uff0c\u710a\u818f\u5168\u8986\u76d6PCB\u710a\u76d8\u4e14\u5e94\u529b\u96c6\u4e2d\u7a0b\u5ea6\u8f83\u4f4e\u3002<\/p>\n

\n\t\u6839\u636e\u4e0e\u5de5\u7a0b\u5e08\u7684\u5206\u4eab\uff0c\u5728\u4f7f\u7528“\u975eSolderMask\u5b9a\u4e49”\u65f6\u4f1a\u6709\u4e00\u5b9a\u95ee\u9898\uff0c\u7531\u4e8e\u4ed6\u4eec\u62c5\u5fc3\u5728\u6ca1\u6709SolderMask\u4e0b\u653e\u4e86\u8fc7\u591a\u7684\u710a\u818f\u800c\u9020\u6210\u77ed\u8def\uff0c\u53cd\u800c\u5bfc\u81f4\u710a\u818f\u4e0d\u8db3\uff0c\u6563\u70ed\u4e0d\u826f\u3002\u4f7f\u7528\u710a\u63a5\u6a21\u677f\u80fd\u534f\u52a9\u5de5\u7a0b\u5e08\u66f4\u6709\u6548\u53ca\u7cbe\u51c6\u5728PCB\u710a\u76d8\u4e0a\u653e\u4e0a\u710a\u818f\uff0c\u5e02\u573a\u4e0a\u4e5f\u63d0\u4f9b\u591a\u79cd\u5c01\u88c5\u5c3a\u5bf8\u7684\u710a\u63a5\u6a21\u677f\u53ef\u9009\u62e9\u3002<\/p>\n

\n\t<\/p>\n

\n\t<\/p>\n

\n\t\u5c0f\u8d34\u58eb2\uff1a\u8bbe\u8ba1\u710a\u76d8\u7684\u5927\u5c0f\u987b\u7b26\u5408\u6570\u636e\u624b\u518c\u4e0a\u7684\u8981\u6c42<\/p>\n

\n\t\u57fa\u672c\u4e0a\uff0c\u5de5\u7a0b\u5e08\u8981\u4e86\u89e3PCB\u710a\u76d8\u9700\u8981\u7b26\u5408\u6570\u636e\u624b\u518c\u4e0a\u8981\u6c42\u7684\u5c3a\u5bf8\u3002\u4f46\u540c\u65f6\uff0c\u5982\u679cPCB\u677f\u5e03\u5c40\u5bb9\u8bb8\uff0c\u8bbe\u8ba1\u8f83\u5927\u7684PCB\u710a\u76d8\u8868\u9762\u9762\u79ef\u4e5f\u80fd\u591f\u5e2e\u52a9\u589e\u52a0\u82af\u7247\u7684\u6563\u70ed\u6027\u80fd\u3002\u56fe3\u662f\u5176\u4e2d\u4e00\u4e2a\u4f8b\u5b50\uff0c\u751f\u4ea7\u5546\u5efa\u8bae\u589e\u5927\u94dc\u9762\u79ef\uff0c\u4ee5\u52a0\u5f3a\u88f8\u9732\u710a\u76d8\u7684\u6563\u70ed\u6548\u76ca\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe3\uff0c\u94dc\u9762\u79ef\u5927\u4e8e\u88f8\u9732\u710a\u76d8\u9762\u79ef\u7684\u4f8b\u5b50<\/p>\n

\n\t\u5c0f\u8d34\u58eb3\uff1a\u5584\u7528\u6563\u70ed\u8fc7\u5b54(ThermalVias)<\/p>\n

\n\t\u4ece\u88f8\u9732\u710a\u76d8\u7684\u710a\u76d8\u533a\u57df\u5230PCB\u7684\u53e6\u4e00\u4fa7\u6dfb\u52a0\u6563\u70ed\u8fc7\u5b54\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6563\u70ed\u3002\u5f53\u4e2d\u7684\u6563\u70ed\u8fc7\u5b54\u5e94\u7528\u53ef\u8bbe\u8ba1\u4e8ePCB\u6563\u70ed\u710a\u76d8\u5185\u6216\u710a\u76d8\u5916\uff08\u5373\u662f\u5728\u94dc\u9762\u4e0a\uff0c\u4e0d\u638f\u4e0a\u710a\u818f\uff09\u3002\u56fe4\u4e2d\u7684\u4f8b\u5b50\u4e2d\u751f\u4ea7\u5546\u5efa\u8bae\u6563\u70ed\u8fc7\u5b54\u5e03\u8bbe\u5728\u710a\u76d8\u5916\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u56fe4\uff0c\u751f\u4ea7\u5546\u5efa\u8bae\u6563\u70ed\u8fc7\u5b54\u5e03\u8bbe\u5728\u710a\u76d8\u5916\u7684\u4f8b\u5b50<\/p>\n

\n\t\u6eab\u99a8\u63d0\u793a<\/p>\n

\n\t\u5982\u4f7f\u7528\u710a\u76d8\u5185\u6563\u70ed\u8fc7\u5b54\uff0c\u710a\u63a5\u7684\u65b9\u5f0f\u4e5f\u8981\u6709\u76f8\u5e94\u7684\u914d\u5408\uff0c\u4ee5\u9632\u6b62\u710a\u818f\u610f\u5916\u6d41\u5165\u5b54\u5185\uff0c\u963b\u585e\u901a\u6c14\uff0c\u8fd9\u6837\u5c31\u8fbe\u4e0d\u5230\u6563\u70ed\u6548\u679c\u3002\u5de5\u7a0b\u5e08\u53ef\u8003\u8651\u53ef\u5265\u79bb (peelable) \u6216\u53ef\u6e05\u6d17(washable) solder mask\uff0c\u4ee5\u4fdd\u62a4\u65e0\u96f6\u90e8\u4efd\u710a\u63a5\u533a\u57df\uff0c\u5305\u62ec“\u5916\u9732\u94dc\u9762\u79ef”\u53ca“\u710a\u76d8\u5916\u6563\u70ed\u8fc7\u5b54”\uff0c\u5728\u5cf0\u6ce2\u710a\u63a5 (wave soldering) \u6216\u7ec4\u88c5\u540ePCB\u677f\u6d82\u5c42\u5de5\u827a\u8fc7\u7a0b\u4e2d\uff0c\u9632\u6b62\u8fc7\u5b54\u88ab\u5835\u585e\u6216\u8fc7\u70ed\u3002<\/p>\n

\n\t<\/p>\n

\n\t\u7ed3\u8bed<\/p>\n

\n\t\u9664\u4e86\u5916\u52a0\u6563\u70ed\u7247\u5916\uff0c\u5177\u6709\u88f8\u9732\u710a\u76d8\u5c01\u88c5\u7684\u82af\u7247\u8bbe\u8ba1\u53ef\u7ed9\u5de5\u7a0b\u5e08\u591a\u4e00\u79cd\u6563\u70ed\u6e20\u9053\uff0c\u589e\u52a0\u4ea7\u54c1\u8bbe\u8ba1\u7684\u7075\u6d3b\u6027\u3002\u4f46\u9700\u4f7f\u7528\u9002\u5408\u7684\u710a\u63a5\u6280\u5de7\u65b9\u6cd5\uff0c\u5426\u5219\u5c31\u65e0\u6cd5\u5229\u7528\u88f8\u9732\u710a\u76d8\u53d1\u6325\u5e94\u6709\u7684\u6563\u70ed\u6548\u679c\u3002<\/p>\n

\n\t\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b9e\u7528\u7684\u7ecf\u9a8c\u603b\u7ed3\uff1a<\/p>\n

\n\t1.\u7559\u610f\u751f\u4ea7\u5546\u5efa\u8bae\u4f7f\u7528“Solder Mask\u5b9a\u4e49”\u6216“\u975eSolder Mask\u5b9a\u4e49”\u710a\u63a5\u65b9\u6cd5\u3002\u5728\u4f7f\u7528“\u975eSolder Mask\u5b9a\u4e49”\u65f6\uff0c \u5de5\u7a0b\u5e08\u53ef\u8003\u8651\u4f7f\u7528\u710a\u63a5\u6a21\u677f\u5df2\u4fbf\u66f4\u6709\u6548\u53ca\u7cbe\u51c6\u5730\u6d82\u4e0a\u710a\u818f;<\/p>\n

\n\t2.\u5982PCB\u5e03\u5c40\u5bb9\u8bb8\uff0cPCB\u710a\u76d8\u53ef\u6bd4\u5b9e\u7269\u9762\u79ef\u5927\u3002\u5982PCB\u592a\u7d27\u51d1\uff0c\u8c28\u8bb0\u81f3\u5c11\u8981\u7b26\u5408\u6570\u636e\u624b\u518c\u4e0a\u7684\u710a\u76d8\u8981\u6c42;<\/p>\n

\n\t3.\u53ef\u5e94\u7528\u710a\u76d8\u5185\u6216\u710a\u76d8\u5916\u6563\u70ed\u8fc7\u5b54\u3002\u4f7f\u7528\u710a\u76d8\u5185\u6563\u70ed\u8fc7\u5b54\uff0c\u5de5\u7a0b\u5e08\u53ef\u8003\u8651\u4f7f\u7528\u53ef\u5265\u79bb (peelable) \u6216\u53ef\u6e05\u6d17(washable) solder mask\uff0c\u4ee5\u4fdd\u62a4“\u5916\u9732\u94dc\u9762\u79ef”\u53ca“\u710a\u76d8\u5916\u6563\u70ed\u8fc7\u5b54”\u5728\u5cf0\u6ce2\u710a\u63a5 (wave soldering) \u6216\u7ec4\u88c5\u540ePCB\u677f\u6d82\u5c42\u5de5\u827a\u8fc7\u7a0b\u4e2d\uff0c\u9632\u6b62\u8fc7\u5b54\u88ab\u5835\u585e\u6216\u8fc7\u70ed\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728\u4e00\u4e9b\u82af\u7247\u5e94\u7528\u4e2d\uff0c\u4f8b\u5982\u7a33\u538b\u5668\uff0c\u5f53\u5668\u4ef6\u6b63\u5728\u5de5\u4f5c\u65f6\uff0c\u9ad8\u53d1\u70ed\u91cf\u662f\u4e0d\u53ef\u907f\u514d\u7684\u3002\u5177\u6709\u88f8\u9732\u710a\u76d8\u5c01\u88c5\u662f\u4e00\u79cd\u8010\u70ed\u589e\u5f3a\u578b\u6807\u51c6\u5c3a\u5bf8IC\u5c01\u88c5\uff0c\u5176\u4f18\u70b9\u662f\u9664\u4e86\u4f7f\u7528\u7b28\u91cd\u7684\u6563\u70ed\u7247\u5916\uff0c\u4ece\u6807\u51c6\u7684PCB\u5e03<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"_links":{"self":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1779"}],"collection":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1779"}],"version-history":[{"count":0,"href":"http:\/\/www.szryc.com\/index.php?rest_route=\/wp\/v2\/posts\/1779\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1779"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1779"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.szryc.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1779"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}