{"id":1257,"date":"2011-11-01T07:58:00","date_gmt":"2011-10-31T23:58:00","guid":{"rendered":"\/\/m.letratesoro.com\/2011\/11\/%e7%84%8a%e7%8f%a0%e6%8e%a2%e9%87%9d%e6%8a%80%e8%a1%93bead-probe-%e5%a2%9e%e5%8a%a0ict%e7%9a%84%e6%b8%ac%e8%a9%a6%e6%b6%b5%e8%93%8b%e7%8e%87\/"},"modified":"2019-11-16T15:53:27","modified_gmt":"2019-11-16T07:53:27","slug":"bead-probe","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2011\/11\/bead-probe\/","title":{"rendered":"\u710a\u73e0\u63a2\u91dd\u6280\u8853(bead probe)-\u589e\u52a0ICT\u7684\u6e2c\u8a66\u6db5\u84cb\u7387"},"content":{"rendered":"

\"Bead_probe01\"<\/font><\/p>\n

\u710a\u73e0\u63a2\u91dd\u6280\u8853(bead probe)\u662f\u7531Agilent(\u5b89\u6377\u502b\uff0c\u73fe\u5df2\u6539\u70ba\u662f\u5fb7\u79d1\u6280(Keysight Technologies))\u7368\u5bb6\u7533\u8acb\u5c08\u5229\u6240\u63d0\u51fa\uff0c\u5728\u4e0d\u9700\u8981\u984d\u5916\u589e\u52a0\u96fb\u8def\u677f\u7a7a\u9593\u7684\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528\u73fe\u6709\u4f48\u7dda\u4f86\u589e\u52a0ICT(In-Circuit-Test)\u7684\u6e2c\u8a66\u9ede\u6db5\u84cb\u7387(coverage)\uff0c\u4e5f\u5c31\u662f\u589e\u52a0\u5370\u5237\u96fb\u8def\u677f\u4e0a\u7684\u6e2c\u8a66\u9ede(Test Point)\uff0c\u4ee5\u9054\u5230\u7d44\u88dd\u96fb\u8def\u677f\u53ef\u4ee5\u4f7f\u7528ICT\u6e2c\u8a66\u7684\u76ee\u7684\u3002<\/font><\/p>\n

\n

\u76f8\u95dc\u95b1\u8b80\uff1a <\/font>PCB\u96fb\u8def\u677f\u70ba\u4f55\u8981\u6709\u6e2c\u8a66\u9ede\uff1f<\/font><\/a><\/p>\n<\/blockquote>\n

\u56e0\u70ba\u73fe\u5728\u96fb\u8def\u677f\u4e0a\u9762\u7684\u96f6\u4ef6\u5bc6\u5ea6\u8d8a\u4f86\u8d8a\u5bc6\uff0c\u4f46\u662f\u7a7a\u9593\u537b\u8d8a\u4f86\u8d8a\u5c0f\uff0c\u5c24\u5176\u662f\u505a\u624b\u6a5f\u7684\u677f\u5b50\uff0c\u6240\u4ee5\u6700\u5148\u88ab\u72a7\u7272\u7684\u5c31\u662f\u4e0d\u5177\u4efb\u4f55\u529f\u80fd\u4f5c\u7528\u7684\u6e2c\u8a66\u9ede\uff0c\u56e0\u70ba\u5f88\u591a\u8001\u95c6\u90fd\u8a8d\u70ba\uff1a\u300c\u54c1\u8cea\u662f\u88fd\u9020\u51fa\u4f86\u7684<\/span>\uff0c\u6240\u4ee5\u53ea\u8981\u628a\u96fb\u8def\u677f\u7d44\u88dd\u7684\u54c1\u8cea\u505a\u597d\uff0c\u5c31\u4e0d\u9700\u8981\u6709\u5f8c\u7e8c\u7684\u96fb\u6c23\u6e2c\u8a66<\/span>\u4e86\u3002\u300d\u3002\u9019\u53e5\u8a71\u6211\u5b8c\u5168\u540c\u610f(\u7ad9\u5728\u8001\u95c6\u7684\u7acb\u5834XD)\uff0c\u53ea\u662f\u4ee5\u76ee\u524d\u96fb\u5b50\u696d\u5feb\u901f\u524d\u9032\u7684\u6b65\u8abf\uff0c\u4e5d\u500b\u6708\u751a\u81f3\u516d\u500b\u6708\u5c31\u8981\u5b8c\u6210\u4e00\u500b\u6848\u5b50\uff0c\u771f\u4e0d\u77e5\u9053\u6709\u90a3\u500b\u5de5\u7a0b\u5e2b\u53ef\u4ee5\u6253\u5305\u7968\uff0c\u8aaa\u4ed6\u8a2d\u8a08\u51fa\u4f86\u7684\u7522\u54c1\u6c92\u6709Bug\uff0c\u7d44\u88dd\u5ee0\u4e5f\u4e0d\u6562\u8aaa\u4ed6\u5011\u7d44\u88dd\u96f6\u7684\u677f\u5b50\u53ef\u4ee5\u96f6\u7f3a\u9ede\uff1f\u5230\u73fe\u5728BGA\u5c01\u88dd\u90fd\u5df2\u7d93\u5920\u8b93SMT\u8207\u88fd\u7a0b\u5de5\u7a0b\u5e2b\u982d\u5927\u4e86\uff0c\u73fe\u5728\u53c8\u51fa\u73fe\u4e86\u4e00\u5806\u65b0\u7684IC\u5c01\u88dd(\u5982QFN)\uff0c\u9084\u6709\u628a\u6574\u500b\u901a\u8a0a\u6a21\u7d44\u4f5c\u5728\u4e00\u584a\u5c0f\u96fb\u8def\u677f\u4e0a\u9762\uff0c\u6210\u54c1\u5ee0\u9700\u8981\u628a\u9019\u6574\u584a\u6a21\u7d44\u96fb\u8def\u677f\u7576\u6210SMT\u96f6\u4ef6\uff0c\u710a\u63a5\u5728\u5176\u96fb\u8def\u677f\u4e0a\u7684\u60c5\u6cc1\u3002<\/font><\/p>\n

<\/p>\n

\u7a2e\u7a2e\u8a2d\u8a08\u8207\u7d44\u88dd\u4e0a\u7684\u6311\u6230\uff0c\u90fd\u5728\u5728\u73fe\u986f\u793a\u5f88\u96e3\u6368\u68c4\u50b3\u7d71\u7684ICT\uff0c\u800c\u7d14\u7cb9\u53ea\u4f7f\u5176\u4ed6\u7684\u65b9\u6cd5(\u5982AOI, AXI)\u4f86\u78ba\u4fdd\u7d44\u88dd\u96fb\u8def\u677f(PCB Assembly)\u7684\u54c1\u8cea\uff0c\u65bc\u662f\u6709\u8d8a\u4f86\u8d8a\u591a\u7684\u516c\u53f8\u53c8\u958b\u59cb\u56de\u4f86\u4f7f\u7528ICT\uff0c\u53ea\u662f\u96fb\u8def\u677f\u4e0a\u7684\u7a7a\u9593\u53ea\u6703\u8d8a\u4f86\u8d8a\u5c0f\uff0c\u54ea\u9084\u6709\u7a7a\u9593\u53ef\u4ee5\u64fa\u653e\u6e2c\u8a66\u9ede\uff0c\u6240\u4ee5\u8070\u660e\u7684\u5b89\u6377\u502b\u5c31\u60f3\u51fa\u4e86\u9019\u7a2e\u5728\u65e2\u6709\u4f48\u7dda(trace)\u4e0a\u9762\u5370\u5237\u932b\u818f\u7684\u65b9\u5f0f\u4f86\u53d6\u4ee3\u6e2c\u8a66\u9ede\u7684\u300c\u710a\u73e0\u63a2\u91dd\u6280\u8853(bead probe)\u300d\u65b9\u6cd5\uff0c\u5b89\u6377\u502b\u7684\u76ee\u7684\u7576\u7136\u662f\u5e0c\u671b\u6574\u500b\u96fb\u5b50\u696d\u53ef\u4ee5\u7e7c\u7e8c\u4fdd\u6709ICT\u4f5c\u696d\uff0c\u7136\u5f8c\u8cfc\u8cb7\u66f4\u591a\u5b83\u76843070\u7cfb\u5217ICT\u6e2c\u8a66\u6a5f\u53f0\u3002<\/font><\/p>\n

\u50b3\u7d71\u7684ICT\u6e2c\u8a66\u65b9\u5f0f\uff0c\u4f7f\u7528\u5c16\u982d\u7684\u63a2\u91dd\u63a5\u89f8\u5728\u5713\u5f62\u7684\u6e2c\u8a66\u9ede\u4e0a\u9762\u4ee5\u5f62\u6210\u8ff4\u8def\uff0c\u9019\u7a2e\u65b9\u5f0f\u9700\u8981\u7684\u662f\u4e00\u500b\u5927\u9762\u7a4d\u7684\u6e2c\u8a66\u9ede\uff0c\u7136\u5f8c\u63a2\u91dd\u5c31\u50cf\u662f\u5c04\u7bad\u4e00\u6a23\u7684\u5fc5\u9808\u5c04\u5230\u6a19\u9776\u7bc4\u570d\u5167\uff0c\u6240\u4ee5\u9700\u8981\u4f7f\u7528\u8f03\u591a\u7684\u96fb\u8def\u677f\u7a7a\u9593\uff1b\u800c\u710a\u73e0\u63a2\u91dd\u6280\u8853(bead probe)\u5247\u525b\u597d\u985b\u5012\uff0c\u5b83\u5e0c\u671b\u6e2c\u8a66\u9ede\u76e1\u91cf\u4e0d\u8981\u4f54\u7528\u96fb\u8def\u677f\u7684\u7a7a\u9593\uff0c\u4f46\u70ba\u4e86\u53ef\u4ee5\u8207\u63a2\u91dd\u63a5\u89f8\u5f62\u6210\u8ff4\u8def\uff0c\u65bc\u662f\u5370\u5237\u4e86\u932b\u818f\uff0c\u8b93\u6e2c\u8a66\u9ede\u8b8a\u9ad8\uff0c\u7136\u5f8c\u4f7f\u7528\u76f4\u5f91\u8f03\u5927\u7684\u5e73\u982d\u63a2\u91dd(50, 75,100 mils)\u4f86\u589e\u52a0\u8207\u6e2c\u8a66\u9ede\u63a5\u89f8\u7684\u6a5f\u6703\uff0c\u5c31\u50cf\u62ff\u8457\u6994\u982d\u6572\u9435\u91d8\u4e00\u822c\u3002<\/font><\/p>\n

\u7406\u8ad6\u4e0a\u9019\u771f\u7684\u662f\u6e2c\u8a66\u9ede\u91cd\u751f\u7684\u4e00\u5927\u7a81\u7834\uff0c\u4f46\u5728\u73fe\u5be6\u74b0\u5883\u4e0a\u9084\u6709\u5f88\u591a\u7684\u6280\u8853\u9700\u8981\u514b\u670d\uff1a<\/font><\/p>\n