{"id":3391,"date":"2015-06-24T08:27:00","date_gmt":"2015-06-24T00:27:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=3391"},"modified":"2023-07-07T10:24:42","modified_gmt":"2023-07-07T02:24:42","slug":"pth-npth-via","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2015\/06\/pth-npth-via\/","title":{"rendered":"\u96fb\u8def\u677f\u4e0a\u70ba\u4f55\u8981\u6709\u5b54\u6d1e\uff1f\u4f55\u8b02PTH\/NPTH\/vias(\u5c0e\u901a\u5b54)"},"content":{"rendered":"

\"\u96fb\u8def\u677f\u4e0a\u70ba\u4f55\u8981\u6709\u5b54\u6d1e\uff1f\u4f55\u8b02PTH\/NPTH\/vias(\u5c0e\u901a\u5b54)\"<\/p>\n

\u5982\u679c\u4f60\u6709\u6a5f\u6703\u62ff\u8d77\u4e00\u7247\u5370\u5237\u96fb\u8def\u677f(PCB)\uff0c\u7a0d\u5fae\u89c0\u5bdf\u4e00\u4e0b\uff0c\u6703\u767c\u73fe\u9019\u96fb\u8def\u677f\u4e0a\u6709\u8457\u8a31\u591a\u5927\u5927\u5c0f\u5c0f\u7684\u5b54\u6d1e\uff0c\u628a\u5b83\u62ff\u8d77\u4f86\u5c0d\u8457\u5929\u82b1\u677f\u4e0a\u7684\u96fb\u71c8\u770b\uff0c\u9084\u6703\u767c\u73fe\u8a31\u591a\u5bc6\u5bc6\u9ebb\u9ebb\u7684\u5c0f\u5b54\u900f\u8457\u5149\uff0c\u9019\u4e9b\u5b54\u6d1e\u53ef\u4e0d\u662f\u653e\u5728\u54ea\u88e1\u64fa\u597d\u770b\u7684\uff0c\u6bcf\u500b\u5b54\u6d1e\u53ef\u90fd\u662f\u6709\u5176\u76ee\u7684\u800c\u88ab\u8a2d\u8a08\u51fa\u4f86\u7684\uff0c\u800c\u4e14\u5b54\u6d1e\u8d8a\u591a\uff0c\u57fa\u672c\u4e0a\u4e5f\u610f\u5473\u8457PCB\u7684\u88fd\u9020\u8cbb\u7528\u5c31\u8d8a\u8cb4\u3002<\/font><\/font><\/p>\n

PCB\u4e0a\u7684\u9019\u4e9b\u5b54\u6d1e\u5927\u9ad4\u4e0a\u53ef\u4ee5\u88ab\u5340\u5206\u6210PTH\uff08Plating Through Hole\uff0c\u96fb\u934d\u901a\u5b54\uff09\u53caNPTH\uff08Non Plating Through Hole\uff0c\u975e\u96fb\u934d\u901a\u5b54\uff09\u5169\u5927\u985e\uff0c\u9019\u88e1\u8aaa\u300c\u901a\u5b54\u300d\u662f\u56e0\u70ba\u9019\u7a2e\u5b54\u9084\u771f\u7684\u5c31\u662f\u5f9e\u96fb\u8def\u677f\u7684\u4e00\u9762\u8cab\u7a7f\u5230\u53e6\u5916\u4e00\u9762\uff0c\u5176\u5be6\u96fb\u8def\u677f\u5167\u9664\u4e86\u901a\u5b54\u5916\uff0c\u9084\u6709\u5176\u4ed6\u4e0d\u662f\u8cab\u7a7f\u96fb\u8def\u677f\u7684\u5b54\uff0c\u6709\u8208\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7\u6587\u7ae0\uff1a<\/font>PCB\u540d\u8a5e\u89e3\u91cb\uff1a\u901a\u5b54\u3001\u76f2\u5b54\u3001\u57cb\u5b54<\/font><\/a>\u3002<\/font><\/p>\n

\u90a3\u8981\u5982\u4f55\u5340\u5206PTH\u8207NPTH\u9019\u5169\u7a2e\u901a\u5b54\u5462\uff1f<\/strong><\/font><\/p>\n

\n

\u5176\u5be6\u5f88\u7c21\u55ae\uff0c\u53c3\u8003\u6587\u7ae0\u6700\u524d\u9762\u7684\u5716\u7247\uff0c\u53ea\u8981\u770b\u770b\u5782\u76f4\u7684\u5b54\u58c1\u4e0a\u6709\u6c92\u6709\u4eae\u4eae\u7684\u91d1\u5c6c\u96fb\u934d\u75d5\u8de1\u5c31\u53ef\u4ee5\u5224\u65b7\u4e86\uff0c\u6709\u96fb\u934d\u75d5\u8de1\u7684\u5b54\u5c31\u662fPTH\uff0c\u6c92\u6709\u96fb\u934d\u75d5\u8de1\u7684\u5b54\u5c31\u662fNPTH\u3002<\/font><\/p>\n<\/blockquote>\n

<\/p>\n

\u90a3NPTH\uff08\u975e<\/font>\u96fb\u934d\u901a\u5b54\uff09\u6709\u4f55\u7528\u9014\uff1f<\/strong><\/font><\/p>\n

\n

\u5982\u679c\u4f60\u7a0d\u5fae\u7559\u9ede\u5fc3\uff0c\u6703\u767c\u73feNPTH\u7684\u5b54\u5f91\u901a\u5e38\u90fd\u6bd4PTH\u4f86\u5f97\u5927\uff0c\u56e0\u70baNPTH\u7d55\u5927\u90e8\u5206\u662f\u7528\u4f86\u4f5c\u70ba\u87ba\u7d72\u9396\u4ed8<\/font>\u7528\u7684\uff0c\u6709\u7684\u5247\u662f\u7528\u65bc\u5b89\u88dd\u4e00\u4e9b\u9023\u7d50\u5916\u9762\u7684\u9023\u63a5\u5668\u56fa\u5b9a\u7528\uff0c\u6709\u7684\u5247\u662f\u5361\u6a5f\u69cb\u7528\u7684\u3002<\/font><\/p>\n

\u53e6\u5916\uff0c\u6709\u4e9bPCB\u4e5f\u6703\u5728\u677f\u908a\uff08break-away\uff0ccoupon\uff0c\u6298\u65b7\u908a\uff09\u8a2d\u8a08NPTH\u4f86\u4f5c\u70ba\u6e2c\u8a66\u6cbb\u5177\u7684\u5b9a\u4f4d\u4e4b\u7528\uff0c\u65e9\u671f\u7684\u6642\u5019\u4e5f\u6703\u62ff\u4f86\u7576\u4f5cSMT\u6253\u4ef6\/\u8cbc\u4ef6\u6642\u56fa\u5b9a\u96fb\u8def\u677f\u4e4b\u7528\uff0c\u73fe\u5728SMT\u7684\u8cbc\u7247\u6253\u4ef6\u6a5f\u5668\u5927\u591a\u4f7f\u7528\u593e\u6301\u7684\u65b9\u5f0f\u800c\u4e0d\u7528\u9802\u91dd\u4f86\u56fa\u5b9a\u96fb\u8def\u677f\u4e86\u3002\u4e0d\u904e\u539a\u5ea6\u592a\u8584\u7684\u677f\u5b50\u53ef\u80fd\u9084\u662f\u9700\u8981\u7528NPTH\u4f86\u56fa\u5b9a\uff0c\u514d\u5f97\u593e\u6301\u8b8a\u5f62\u3002<\/font><\/p>\n<\/blockquote>\n

\u90a3PTH\uff08\u96fb\u934d\u901a\u5b54\uff09\u6709\u4f55\u7528\u9014\uff1fVia(\u5c0e\u901a\u5b54)\u53c8\u662f\u4ec0\u9ebc\uff1f<\/strong><\/font><\/p>\n

\n

\u4e00\u822c\u5728\u96fb\u8def\u677f\u7684PTH\u5b54\u6703\u6709\u5169\u7a2e\u7528\u9014\uff0c\u4e00\u7a2e\u662f\u7528\u4f86\u710a\u63a5\u50b3\u7d71THD<\/a>\u96f6\u4ef6\u8173\u7528\u7684\uff0c\u9019\u4e9b\u5b54\u7684\u5b54\u5f91\u5fc5\u9808\u6bd4\u96f6\u4ef6\u7684\u710a\u63a5\u8173\u76f4\u5f91\u4f86\u5f97\u5927\u4e00\u4e9b\uff0c\u9019\u6a23\u624d\u80fd\u628a\u96f6\u4ef6\u63d2\u9032\u5230\u5b54\u4e2d\u505a\u710a\u63a5\u3002<\/font><\/p>\n

\"\u50b3\u7d71\u7684via(\u5c0e\u901a\u5b54)\"<\/font>\u53e6\u4e00\u7a2e\u6bd4\u8f03\u5c0f\u7684PTH\uff0c\u901a\u5e38\u7a31\u5176\u70bavia(\u5c0e\u901a\u5b54)\uff0c\u5b83\u5011\u662f\u7528\u4f86\u9023\u63a5\u53ca\u5c0e\u901a\u96fb\u8def\u677f(PCB)\u7684\u4e0d\u540c\u5c64\u4e4b\u9593\u7684\u9285\u7b94\u7dda\u8def\u7528\u7684\uff0c\u56e0\u70baPCB\u57fa\u672c\u4e0a\u5c31\u662f\u7531\u8a31\u591a\u7684\u9285\u7b94\u5c64\u5806\u758a\u7d2f\u7a4d\u800c\u6210\uff0c\u76f8\u9130\u9285\u7b94(copper)\u5c64\u4e4b\u9593\u90fd\u6703\u518d\u92ea\u4e0a\u4e00\u5c64\u7d55\u7de3\u5c64\uff0c\u4e5f\u5c31\u662f\u8aaa\u9285\u7b94\u6750\u6599\uff0c\u5f7c\u6b64\u4e4b\u9593\u4e0d\u80fd\u4e92\u901a\u7684\uff0c\u800c\u4e0d\u540c\u7684\u9285\u7b94\u5c64\u4e4b\u9593\u7684\u8a0a\u865f\u50b3\u905e\u9760\u7684\u5c31\u662fvia\uff0c\u6240\u4ee5\u4e2d\u6587\u624d\u6703\u7a31\u5176\u70ba\u300c\u5c0e\u901a\u5b54\u300d\uff0c\u4f60\u53ef\u4ee5\u628a\u4e0d\u540c\u7684\u9285\u7b94\u5c64\u60f3\u50cf\u6210\u5927\u578b\u767e\u8ca8\u516c\u53f8\u7684\u4e0d\u540c\u6a13\u5c64\uff0c\u800c\u5c0e\u901a\u5b54\u5c31\u76f8\u7576\u65bc\u9023\u63a5\u4e0d\u540c\u6a13\u5c64\u7684\u6a13\u68af\uff0c\u6a13\u68af\u4e0d\u53ea\u6709\u4e00\u8655\u3002<\/font><\/p>\n

\"Blind-Via-Hole\"\u5de6\u5716\u662f\u96fb\u8def\u677f\u7684\u5256\u9762\u5716\uff0c\u628a\u5b83\u60f3\u6210\u662f\u73bb\u7483\u74f6\u5167\u7684\u879e\u87fb\u5de2\u7a74\uff0c\u9019\u662f\u4e00\u7247\u6709\u516d\u5c64\u9285\u7b94\u7684PCB\uff0c\u6211\u5011\u53ef\u4ee5\u628a\u9019\u7247PCB\u60f3\u50cf\u6210\u6709\u662f\u4e00\u68df\u6709\u8457\u516d\u5c64\u6a13\u7684\u5927\u5ec8\uff0c\u6bcf\u4e00\u5c64\u9285\u7b94\u5c31\u4ee3\u8868\u8457\u4e00\u5c64\u6a13\uff0c\u800cvia(\u5c0e\u901a\u5b54)\u5c31\u76f8\u7576\u65bc\u9023\u63a5\u6a13\u5c64\u9593\u7684\u6a13\u68af\u901a\u9053<\/font>\uff0c\u800c\u4e14\u9019\u68df\u5927\u5ec8\u7684\u6a13\u68af\u53ef\u4ee5\u6709\u597d\u5e7e\u5ea7\uff0c\u4e0d\u904e\u9019\u6a13\u68af\u53ef\u4e0d\u4e00\u5b9a\u6bcf\u4e00\u5ea7\u90fd\u6703\u9023\u63a5\u5230\u6240\u6709\u7684\u6a13\u5c64\u5c31\u662f\u4e86\uff0c\u5b83\u53ef\u80fd\u53ea\u6709\u9023\u63a5\u7b2c\u4e09\u5c64\u8207\u7b2c\u56db\u5c64\u6a13\uff0c\u5176\u4ed6\u90fd\u4e0d\u901a\uff0c\u9019\u6a23\u5b50\u7684\u5b54(via)\u6211\u5011\u7a31\u4e4b\u70ba\u3010Buried Via Hole(\u57cb\u5b54)\u3011\uff0c\u56e0\u70ba\u5f9e\u5916\u9762\u5b8c\u5168\u770b\u4e0d\u5230\u6709\u5b54\u7684\u5b58\u5728\u3002\u56e0\u70bavia\u7684\u76ee\u7684\u5728\u5c0e\u901a\u4e0d\u540c\u5c64\u7684\u9285\u7b94\uff0c\u800c\u4e14\u9700\u8981\u96fb\u934d\u624d\u80fd\u5c0e\u901a\uff0c\u6240\u4ee5via\u4e5f\u662fPTH\u7684\u4e00\u7a2e\u3002<\/font><\/p>\n

\"\u7da0\u6f06\u8986\u84cbvia(\u5c0e\u901a\u5b54)\"\u4e0d\u904e\u73fe\u5728\u7684via\u5927\u591a\u6703\u7528\u7da0\u6f06(solder mask)\u8986\u84cb\u8d77\u4f86\uff0c\u5c31\u50cf\u5de6\u5716\u7684\u6a23\u5b50\uff0c\u4f7f\u5176\u8868\u9762\u7d55\u7de3\uff0c\u5c24\u5176\u662f\u624b\u6a5f\u677f\uff0c\u56e0\u70ba\u677f\u5b50\u4e0a\u7684\u96f6\u4ef6\u8d8a\u64fa\u8d8a\u5bc6\u96c6\uff0c\u6709\u4e9bvia\u751a\u81f3\u6703\u88ab\u653e\u5728\u96f6\u4ef6\u7684\u6b63\u4e0b\u65b9\uff0c\u70ba\u4e86\u9632\u6b62\u96f6\u4ef6\u8207via\u4e0d\u5c0f\u5fc3\u77ed\u8def\u800c\u7522\u751f\u54c1\u8cea\u554f\u984c\u6216\u529f\u80fd\u554f\u984c\uff0c\u6240\u4ee5\u5927\u591a\u6703\u7528\u7da0\u6f06\u4f86\u8986\u84cbvia\u3002<\/font><\/p>\n

\u53e6\u4e00\u500b\u76ee\u7684\u662f\u6709\u4e9bvia\u4e0a\u9762\u6703\u5370\u5237\u932b\u818f<\/a>\uff0c\u7576\u677f\u5b50\u6d41\u7d93\u56de\u710a\u7210(reflow)\u6642\uff0c\u932b\u818f\u662f\u5f88\u6709\u53ef\u80fd\u5f9evia\u6d41\u904e\u53bb\u5230\u677f\u5b50\u7684\u53e6\u4e00\u9762\u800c\u9020\u6210\u77ed\u8def\u554f\u984c\u7684\uff0c\u6240\u4ee5\u73fe\u5728\u7684PCB\u5de5\u85dd\u5927\u591a\u6703\u628avia\u7684\u5b54\u5f91\u505a\u5f97\u5c0f\u5c0f\uff0c\u7136\u5f8c\u7528\u7da0\u6f06\u8986\u84cb\u4ee5\u907f\u514d\u5c07\u4f86\u53ef\u80fd\u9020\u6210\u7684\u54c1\u8cea\u554f\u984c\uff0c\u7576\u7136\u9019\u4e00\u5207\u9084\u5f97\u9075\u7167Gerber\u7684\u8981\u6c42\u505a\u3002<\/font><\/p>\n

\u5efa\u8b70\u5ef6\u4f38\u95b1\u8b80\uff1aPCB\u8a2d\u8a08\u585e\u5b54\u4e0d\u585e\u5b54\u6703\u6709\u4f55\u5f71\u97ff\uff1f\u4ec0\u9ebc\u662f\u5168\u585e\u5b54\u8207\u534a\u585e\u5b54\uff1f<\/a><\/font><\/p>\n<\/blockquote>\n

\u7576\u7136\uff0c\u4f7f\u7528\u7da0\u6f06\u8986\u84cb\u65bc\u5c0e\u901a\u5b54\u7684\u5de5\u6cd5\u6709\u8a31\u591a\u4eba\u89ba\u5f97\u6703\u6709\u54c1\u8cea\u98a8\u96aa\uff0c\u56e0\u70ba\u53ef\u80fd\u6703\u6709\u84cb\u5b54\u4e0d\u5168\u6216\u662f\u5316\u5b78\u85e5\u5291\u6b98\u7559\u800c\u5c0e\u81f4\u8150\u8755\u7684\u98a8\u96aa\uff0c\u4f46\u4e0d\u53ef\u5426\u8a8d\u7684\uff0c\u4f7f\u7528\u7da0\u6f06\u84cb\u5b54\u9084\u662f\u76ee\u524d\u6700\u4fbf\u5b9c\u4e14\u53ef\u4ee5\u63a5\u53d7\u7684\u586b\u5b54\u65b9\u5f0f\u3002<\/font><\/p>\n

\u9664\u4e86\u4f7f\u7528\u7da0\u6f06\u84cb\u5b54\u5916\uff0c\u4e5f\u6709\u4eba\u4f7f\u7528\u6a39\u8102\u5148\u586b\u5b54\u5f8c\u518d\u7528\u7da0\u6f06\u84cb\u5b54\uff0c\u9019\u6a23\u7684\u5de5\u6cd5\u6bd4\u8f03\u7b26\u5408\u54c1\u8cea\u7684\u8981\u6c42\uff0c\u4f46\u591a\u4e86\u4e00\u9053\u5de5\u5e8f\uff0c\u8cbb\u7528\u7576\u7136\u5f97\u5f80\u4e0a\u52a0\u3002\u53e6\u5916\uff0c\u5982\u679c\u662f\u710a\u76e4\/\u710a\u588a\u4e0a\u7684\u901a\u5b54\u6216\u76f2\u5b54\uff08void in pad\uff09\uff0c\u4e00\u822c\u6211\u5011\u6703\u8981\u6c42\u4f7f\u7528\u96fb\u934d\u9285\u585e\u5b54\uff0c\u6700\u5f8c\u518d\u505a\u8868\u9762\u8655\u7406(Finished)\u7684 VIPPO (Via-In-Pad Plated Over)\uff0c\u4ee5\u907f\u514d\u932b\u818f\u6d41\u9032\u901a\u5b54\u7684\u98a8\u96aa\u3002<\/font><\/p>\n

\n

\u5ef6\u4f38\u95b1\u8b80\uff1a<\/font>
COB\u5c0dPCB\u8a2d\u8a08\u7684\u8981\u6c42<\/font><\/a>
PCB\u96fb\u8def\u677f\u70ba\u4f55\u8981\u6709\u6e2c\u8a66\u9ede\uff1f<\/font><\/a>
\u5c0e\u901a\u5b54\u5728\u588a(Vias-in-pad)\u7684\u8655\u7406\u539f\u5247<\/font><\/a>
\u4ec0\u9ebc\u662fICT(In-Circuit-Test)\uff1f\u6709\u4f55\u512a\u7f3a\u9ede\uff1f<\/font><\/a>
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