{"id":8625,"date":"2020-02-05T08:28:00","date_gmt":"2020-02-05T00:28:00","guid":{"rendered":"\/\/m.letratesoro.com\/?p=8625"},"modified":"2021-10-14T11:26:09","modified_gmt":"2021-10-14T03:26:09","slug":"tranz1230-qc-story","status":"publish","type":"post","link":"\/\/m.letratesoro.com\/2020\/02\/tranz1230-qc-story\/","title":{"rendered":"\u300a\u6848\u4f8b\u300bTranz1230\u751f\u7522\u826f\u7387\u6539\u5584\u7684\u54c1\u8cea\u6b77\u7a0b(QC Story)"},"content":{"rendered":"
<\/p>\n
\u9019\u4efd\u300a\u54c1\u8cea\u6b77\u7a0b(QC Story)<\/a>\u300b\u6848\u4f8b\u5831\u544a\u662f\u5de5\u4f5c\u718a\u5728\u5e7e\u5e74\u524d\u5beb\u7684\uff0c\u7576\u6642\u50c5\u63d0\u4f9b\u7559\u8a00\u5f8c\u7d22\u53d6PDF\u6a94\u6848\u7684\u56db\u5f35\u5716\u7247\uff0c\u73fe\u5728\u5247\u628a\u5b83\u5beb\u6210\u90e8\u843d\u683c\u6587\u7ae0\u7d66\u5927\u5bb6\u53c3\u8003\u3002<\/font><\/p>\n \u54c1\u7ba1\u6b77\u7a0b\u7684\u91cd\u9ede\u5176\u5be6\u5c31\u662f\u628a\u6574\u500b\u54c1\u8cea\u6539\u5584\u904e\u7a0b\u7576\u6210\u4e00\u500b\u6545\u4e8b\u4f86\u8aaa\u7d66\u807d\u8005(\u9577\u5b98\u6216\u76f8\u95dc\u4eba\u54e1\uff09\u4e86\u89e3\uff0c\u6240\u4ee5\u5831\u544a\u4e2d\u7d93\u5e38\u9700\u8981\u904b\u7528\u5230\u8a31\u591a\u7684\u54c1\u7ba1\u5de5\u5177\u8207\u5716\u8868\u4f86\u8f14\u52a9\u8aaa\u660e\u3002<\/font><\/p>\n <\/p>\n \u300a\u54c1\u8cea\u6b77\u7a0b(QC Story)\u300b\u7684\u5831\u544a\u65b9\u5f0f\u57fa\u672c\u4e0a\u5c31\u662f\u8b93\u5beb\u5831\u544a\u8005\u6709\u4e00\u500b\u53ef\u4ee5\u9075\u5faa\u7684\u6b65\u9a5f\u8207\u7bc4\u4f8b\uff0c\u5c07\u5831\u544a\u5beb\u51fa\u4f86\uff0c\u8b93\u8b80\u5831\u544a\u7684\u4eba\u53ef\u4ee5\u6e05\u695a\u4e86\u89e3\u54c1\u8cea\u554f\u984c\u767c\u751f\u7684\u4f86\u9f8d\u53bb\u8108\u8207\u89e3\u6c7a\u65b9\u6cd5\u3002\u5982\u679c\u4f60\u9084\u4e0d\u662f\u5f88\u6e05\u695a\u4ec0\u9ebc\u662f\u300a\u54c1\u8cea\u6b77\u7a0b(QC Story)\u300b\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u5169\u504f\u6587\u7ae0\uff1a \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\uff09<\/em><\/p>\n QC story for Tranz1230 Quality Improvement Prepared by: \u5de5\u4f5c\u718a 1. Problem Selected<\/b>\uff08\u4e3b\u984c\u9078\u5b9a\uff09:<\/b><\/font><\/p>\n Yield rate improvement for Tranz1230 product final assembly.<\/font><\/p>\n Tranz1230\u7522\u54c1\u7d44\u88dd\u826f\u7387\u6539\u5584\u3002<\/font><\/p>\n<\/blockquote>\n 2. Why selected<\/b>\uff08\u70ba\u4f55\u9078\u64c7\u9019\u500b\u4e3b\u984c\uff09:<\/b><\/font><\/p>\n The target yield rate is 95% for New product Manufacture Release sign off.<\/font><\/p>\n \u6839\u64da\u516c\u53f8\u898f\u5b9a\u8981\u6c42\uff0c\u65b0\u7522\u54c1\u91cf\u7522\u524d\u7684\u826f\u7387\u81f3\u5c11\u5fc5\u9808\u9054\u523095\uff05\u4ee5\u4e0a\uff0c\u800c\u4e14\u4e0d\u826f\u7387\u5fc5\u9808\u6301\u7e8c\u6539\u5584\u4ee5\u907f\u514d\u505c\u7dda\u98a8\u96aa\u3002<\/font><\/p>\n<\/blockquote>\n 3. Current Status\uff08\u73fe\u6cc1\u8a55\u4f30\uff09:<\/b><\/font><\/p>\n Tranz1230 got low yield rate. The yield rate trends to worse from 90.6% down to 66.1% and loses control.<\/font><\/p>\n \u751f\u7522\u7dda\u53cd\u994b\u7522\u54c1\u826f\u7387\u5831\u544a\u504f\u4f4e\uff0c\u4e14Tranz1230\u7684\u7522\u54c1\u826f\u7387\u6709\u6301\u7e8c\u4e0b\u964d\u7684\u8da8\u52e2\uff0c\u6839\u64da\u751f\u7522\u4fee\u7406\u5831\u8868\u53ca\u8cc7\u6599\u6536\u96c6\u5f8c\u986f\u793a\u539f\u672c\u7684\u826f\u7387\u5340\u9593\u843d\u572885\uff5e91\uff05\u4e4b\u9593(2\/23~3\/16)\uff0c\u4f46\u81ea\u5f9e4\/1\u5f8c\u826f\u7387\u5c31\u4e00\u76f4\u4e0b\u964d\uff0c\u800c\u57284\/6\u964d\u4f4e\u523066.1\uff05\uff0c\u7522\u7dda\u56e0\u800c\u505c\u7dda\u3002 <\/font><\/p>\n 4. Defect Analysis<\/b>\uff08\u4e0d\u826f\u539f\u56e0\u5206\u6790\uff09:<\/b><\/font><\/p>\n 4.1 Data collection<\/b>\uff08\u8cc7\u6599\u6536\u96c6\uff09<\/b><\/font><\/font><\/p>\n The defect mode analysis show 1) IPP RAM test fail, 2) Swiping card fail, and 3) Display fail are top three defect issues.<\/font><\/p>\n \u6839\u64da\u4fee\u7406\u5831\u8868\uff0c\u5206\u6790\u73fe\u6cc1\u8cc7\u6599\u5f8c\uff0c\u5176\u4e0d\u826f\u73fe\u8c61\u7684\u524d\u4e09\u540d\u5206\u5225\u70ba\uff08\u7576\u521d\u9019\u5f35\u67cf\u62c9\u5716<\/a>\u5716\u8868\u505a\u5f97\u4e0d\u6f02\u4eae\u554a\uff01\uff09\uff1a<\/font> <\/font> <\/p>\n 4.2 Defect Symptom Analysis<\/b>\uff08\u4e0d\u826f\u539f\u56e0\u5206\u6790\uff09<\/b><\/font><\/font><\/p>\n <\/font> <\/p>\n As analysis and find almost the IPP RAM test fail units can be fixed by following step: \u7d93\u904e\u5206\u6790\u4e4b\u5f8c\u767c\u73fe\uff0c\u767c\u73fe\u5e7e\u4e4e\u6240\u6709\u7684\u8a18\u61b6\u9ad4\u6e2c\u8a66\u4e0d\u826f(IPP RAM test fail)\u73fe\u8c61\u90fd\u53ef\u4ee5\u7d93\u7531\u4e0b\u5217\u7684\u6b65\u9a5f\u4fee\u7406\u6062\u5fa9\uff1a \u7d93\u904e\u91cd\u65b0\u6aa2\u8996\u6574\u500bTranz1230\u7522\u54c1\u7684\u7d44\u88dd\u7d50\u69cb\u5f8c\uff0c\u767c\u73fe\u9019\u500b\u5b89\u5168\u6846\u7d44\u4ef6\u4f7f\u7528\u5169\u500b\u77fd\u81a0\u5c0e\u96fb\u689d(zebra strip rubber)<\/a>\u4f86\u7576\u4f5c\u986f\u793a\u96fb\u8def\u677f\u8207\u7cfb\u7d71\u96fb\u8def\u677f\u4e4b\u9593\u7684\u96fb\u6c23\u8a0a\u865f\u9023\u63a5\u88dd\u7f6e\u53ef\u80fd\u6709\u554f\u984c\uff0c\u5982\u679c\u9019\u5169\u500b\u77fd\u81a0\u5c0e\u96fb\u689d\u7684\u5b89\u88dd\u6709\u554f\u984c\u6216\u662f\u63a5\u89f8\u4e0d\u826f\uff0c\u5c31\u6703\u767c\u751f\u8a18\u61b6\u9ad4\u6e2c\u8a66\u4e0d\u826f\u7684\u73fe\u8c61\u3002<\/font><\/p>\n \u53e6\u5916\u6211\u5011\u4e5f\u767c\u73fe\u9019\u5169\u500b\u77fd\u81a0\u5c0e\u96fb\u689d\u5982\u679c\u6709\u63a5\u89f8\u4e0d\u826f\u6216\u662f\u963b\u6297\u904e\u5927\uff0c\u4e5f\u6703\u9023\u5e36\u7684\u5f15\u8d77\u5237\u5361\u4e0d\u826f(swiping card fail)\u53ca\u87a2\u5e55\u986f\u793a\u4e0d\u826f(Display test fail)\u7b49\u73fe\u8c61\u3002 <\/font><\/p>\n<\/blockquote>\n According to above fish bone diagram, we highlighted four potential causes as action items. <\/font><\/p>\n \u6839\u64da\u9b5a\u9aa8\u5716(\u8981\u56e0\u5206\u6790\u5716)<\/a>\u5206\u6790\u7684\u7d50\u679c\uff0c\u6211\u5011\u9078\u5b9a\u56db\u500b\u53ef\u80fd\u7684\u4e3b\u8981\u539f\u56e0\u63a1\u53d6\u5c0d\u7b56\uff1a<\/font><\/p>\n 5. Actions<\/b>\uff08\u6539\u5584\u5c0d\u7b56\uff09:<\/b><\/font><\/p>\n 1. Asking clear the dust and contamination before assembling the zebra stripes and IPP frame assembly parts. 2. Build a fixture to align zebra strip in the middle of SHROUD holder. 3. Making extra test fixture to test the resistance value between the zebra-strip and security-film. There is no big different for the yield rate improve after implement the test fixture. 4. Making extra fixture to test the zebra strip and IPP film resistance. 6. Results\uff08\u7d50\u679c\u8a55\u4f30\uff09:<\/font><\/b><\/p>\n There is no big yield improvement for the Action 1, 3, and 4. We will say these three actions are failed.<\/font><\/p>\n <\/font> <\/p>\n For Action 2 that applying correct fixture to assemble zebra and IPP film into Shell got good result. The yield rate was improved from 66.1% to 91.5% (refer to below yield rate chart). <\/font><\/p>\n <\/font> <\/p>\n \u5c0d\u7b561, 3, 4\u5c0d\u7522\u54c1\u826f\u7387\u4e26\u6c92\u6709\u592a\u5927\u7684\u6539\u5584\u3002\u800c\u5c0d\u7b562\u4f7f\u7528\u6b63\u78ba\u7684\u77fd\u81a0\u5c0e\u96fb\u689d\u7684\u7d44\u88dd\u6cbb\u5177\u5f8c\uff0c\u7522\u54c1\u826f\u7387\u5373\u5f9e66.1%\u4e0a\u5347\u523091.5%\uff0c\u7372\u5f97\u5927\u5e45\u7684\u6539\u5584\uff0c\u5f8c\u7e8c\u826f\u7387\u66f4\u6301\u7e8c\u6539\u5584\u9054\u523095%\u7b26\u5408\u91cf\u7522\u7684\u826f\u7387\u3002<\/font><\/p>\n<\/blockquote>\n 7. Standardization\uff08\u6a19\u6e96\u5316\uff09:<\/b><\/font><\/p>\n SOP of TPE-01169 Rev.B was released on Apr-11-2012 and asked to apply correct assembly fixture and also add the inspection criteria for the zebra strip position checking. <\/font><\/p>\n \u6a19\u6e96\u4f5c\u696d\u6307\u5c0e\u66f8TPE-01169 Rev.B\u5df2\u7d93\u5728Apr-11-2012\u66f4\u6539\u4e26\u4e14\u767c\u884c\uff0c\u8981\u6c42\u4f5c\u696d\u6642\u5fc5\u9808\u4f7f\u7528\u6b63\u78ba\u7684\u77fd\u81a0\u5c0e\u96fb\u689d\u7684\u7d44\u88dd\u6cbb\u5177\uff0c\u800c\u4e14\u9084\u898f\u5b9a\u77fd\u81a0\u5c0e\u96fb\u689d\u7684\u6aa2\u9a57\u6a19\u6e96\u3002<\/font><\/font><\/p>\n 8. Problems remaining\uff08\u6b98\u7559\u554f\u984c\uff09:<\/b><\/font><\/p>\n Current yield rate is 97.2% and there still a defect rate needs to be improved. <\/font><\/p>\n \u73fe\u5728\u7684\u7522\u54c1\u826f\u7387\u662f97.2%\uff0c\u4ecd\u7136\u9084\u6709\u90e8\u4efd\u4e0d\u826f\u9700\u8981\u6301\u7e8c\u6539\u5584\u3002<\/font><\/p>\n<\/blockquote>\n 9. Future plans\uff08\u5c55\u671b\u672a\u4f86\uff09:<\/b><\/font><\/p>\n Need to focus on another zebra strip installation for the IPP ASSEMBLY. If this zebra don\u2019t be installed well then it will bring Display fail and swiping card fail too.<\/font><\/p>\n \u4ecd\u7136\u9700\u8981\u6301\u7e8c\u6539\u5584\u4e26\u63a7\u5236\u53e6\u4e00\u500b\u77fd\u81a0\u5c0e\u96fb\u81a0\u689d\u7684\u7d44\u88dd\uff0c\u56e0\u70ba\u9019\u500b\u77fd\u81a0\u5c0e\u96fb\u81a0\u689d\u5982\u679c\u7d44\u88dd\u4e0d\u826f\uff0c\u4ecd\u7136\u6703\u9020\u6210\u5237\u5361\u4e0d\u826f(swiping card fail)\u8207 \u986f\u793a\u4e0d\u826f(Display test fail)\u3002<\/font><\/p>\n<\/blockquote>\n \u4e0d\u77e5\u9053\u770b\u5b98\u5011\u6709\u6c92\u6709\u767c\u73fe\uff0c\u9019\u6a23\u4e00\u4efd\u300c\u54c1\u8cea\u6b77\u7a0b(QC story)\u300d\u5831\u544a\u4f3c\u4e4e\u6bd4\u8f03\u9069\u5408\u7559\u5b58\u7d00\u9304\u5099\u67e5\u3001\u7d66\u5f8c\u4eba\u67e5\u8a62\u53c3\u8003\u4e4b\u7528\uff0c\u5982\u679c\u8981\u62ff\u9019\u6a23\u7684Report\u4e0a\u53f0\u5831\u544a\u4f3c\u4e4e\u5c31\u6709\u9ede\u5197\u9577\u4e0d\u592a\u5408\u9069\u4e86\uff0c\u8981\u4e0a\u53f0\u5831\u544a\u8b1b\u7d66\u8001\u95c6\u807d\u7684\u5efa\u8b70\u7528\u300c\u55ae\u5f35\u7684\u54c1\u8cea\u6b77\u7a0b<\/a>\u300d(\u5982\u6587\u7ae0\u6700\u4e0a\u9762\u7684\u5716)\u3002<\/font><\/p>\n \u56de\u300b<\/font>SPC\u3001Cpk\u3001\u88fd\u7a0b\u80fd\u529b\u4e4b\u89e3\u8aaa\u8207\u6574\u7406<\/font><\/a><\/p>\n \u5ef6\u4f38\u95b1\u8b80\uff1a \u9019\u4efd\u300a\u54c1\u8cea\u6b77\u7a0b(QC Story)\u300b\u6848\u4f8b\u5831\u544a\u662f\u5de5 …<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,116],"tags":[154,179,175],"aioseo_notices":[],"views":11023,"_links":{"self":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/8625"}],"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=8625"}],"version-history":[{"count":7,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/8625\/revisions"}],"predecessor-version":[{"id":8795,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/posts\/8625\/revisions\/8795"}],"wp:attachment":[{"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/media?parent=8625"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/categories?post=8625"},{"taxonomy":"post_tag","embeddable":true,"href":"\/\/m.letratesoro.com\/wp-json\/wp\/v2\/tags?post=8625"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/font>QC story\u54c1\u8cea\u6539\u5584\u6b77\u7a0b(\u6545\u4e8b)\u65b9\u6cd5\u89e3\u8aaa<\/font><\/a>
News Letter: \u300cQC Story Sheet \u55ae\u5f35\u8868\u683c\u300d\u958b\u653e\u7d22\u53d6<\/font><\/a><\/p>\n
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Tranz1230\u751f\u7522\u826f\u7387\u6539\u5584\u7684\u54c1\u8cea\u6b77\u7a0b<\/strong><\/font><\/p>\n
Created date: 20-Aug-2012 <\/p>\n
\n\n
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<\/p>\n<\/blockquote>\n
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1) \u8a18\u61b6\u9ad4\u6e2c\u8a66\u4e0d\u826f(IPP RAM test fail) \uff0c\u670958%\u3002<\/font>
2) \u5237\u5361\u4e0d\u826f(swiping card fail)\uff0c\u670921%\u3002<\/font>
3) \u87a2\u5e55\u986f\u793a\u4e0d\u826f(Display test fail) \uff0c\u67099%\u3002<\/font><\/font><\/p>\n<\/font><\/font><\/p>\n
1\uff09Disassemble top and bottom case screw.
2\uff09Lift IPP Assembly frame parts then put it back to original position without any rework or replacement.
3\uff09Re-screw up top and bottom case.
Reviewed the structure of Tranz1230 design. There are two zebra stripes inside the IPP Assembly that locates between both Display and System board as security junction. If the zebra disconnects between Display and System boards then unit will get IPP RAM test fail<\/b>. So, we do focus on why these zebra stripes will contact fail between Display or System boards<\/b>.<\/font><\/p>\n
1. \u62c6\u958b\u7522\u54c1\u4e0a\u4e0b\u5916\u6bbc\u7684\u87ba\u7d72\u3002
2. \u628a\u5b89\u5168\u6846\u7d44\u4ef6(IPP Assembly frame parts)\u62ac\u8d77\uff0c\u7136\u5f8c\u4e0d\u505a\u4efb\u4f55\u52d5\u4f5c\u518d\u91cd\u65b0\u653e\u7f6e\u56de\u539f\u4f86\u4f4d\u7f6e\u3002
3. \u91cd\u65b0\u9396\u4e0a\u87ba\u7d72\u3002<\/font><\/p>\n<\/font><\/p>\n
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–>No different for the yield rate improvement.
\u7d44\u88dd\u77fd\u81a0\u5c0e\u96fb\u689d\u8207\u5b89\u5168\u6846\u7d44\u6642\uff0c\u8981\u6c42\u5148\u6e05\u9664\u5728\u63a5\u89f8\u9ede\u4e0a\u7684\u6240\u6709\u7684\u7070\u5875\u8207\u6cbe\u6c61\u3002\uff08\u7d50\u679c\uff1a\u54c1\u8cea\u6539\u5584\u7121\u5dee\u7570\uff09<\/font><\/font><\/p>\n
–>Yield improved.
\u88fd\u4f5c\u77fd\u81a0\u5c0e\u96fb\u689d\u7684\u7d44\u88dd\u6cbb\u5177\uff0c\u9019\u500b\u6cbb\u5177\u91cd\u65b0\u5b9a\u7fa9\u4e26\u8981\u6c42\u66f4\u7cbe\u6e96\u7684\u6cbb\u5177\u5b89\u88dd\u5c3a\u5bf8\uff0c\u800c\u4e14\u589e\u52a0\u58d3\u529b\u907f\u514d\u77fd\u81a0\u5c0e\u96fb\u689d\u7d44\u88dd\u6642\u6709\u8b8a\u5f62\u7684\u73fe\u8c61\u767c\u751f\u3002\uff08\u7d50\u679c\uff1a\u826f\u7387\u6709\u5927\u5e45\u6539\u5584\uff09<\/font><\/font><\/font><\/p>\n
\u70ba\u6b64\u6211\u5011\u65b0\u589e\u88fd\u4f5c\u4e86\u6e2c\u8a66\u6cbb\u5177\u4f86\u6aa2\u6e2c\u5b89\u5168\u6846\u7d44\u4ef6\u7684\u96fb\u6c23\u7279\u6027\uff0c\u4f46\u5c0d\u65bc\u54c1\u8cea\u6539\u5584\u4e26\u6c92\u6709\u592a\u5927\u7684\u5e6b\u52a9\u3002\uff08\u7d50\u679c\uff1a\u54c1\u8cea\u6539\u5584\u7121\u5dee\u7570\uff09<\/font><\/font><\/p>\n
–>No different for the yield rate improvement.
\u65b0\u589e\u6e2c\u8a66\u6cbb\u5177\u52a0\u6aa2\u77fd\u81a0\u5c0e\u96fb\u689d\u8207\u5b89\u5168\u8edf\u677f\u7684\u4f86\u6599\u963b\u6297\u3002\uff08\u7d50\u679c\uff1a\u54c1\u8cea\u6539\u5584\u7121\u5dee\u7570\uff09<\/font><\/font><\/p>\n<\/blockquote>\n\n
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<\/font>\u67cf\u62c9\u5716\u5206\u6790 (Pareto Chart)\u4ecb\u7d39<\/font><\/a>
\u54c1\u7ba1\u4e03\u5927\u5de5\u5177\uff0d\u5c64\u5225\u6cd5\u7684\u4ecb\u7d39\u8207\u4f7f\u7528<\/font><\/a>
\u7279\u6027\u8981\u56e0\u5206\u6790\u5716(Cause & effect Analysis)\u4ecb\u7d39<\/font><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"