深圳市盛吉星电子有限公司shenzhenshi senes eiectionic co.,ltd to:生产/工程/品质各部经理 cc:邱总/羊总/马总 fm：工艺黄文龙 appr: 陈飞跃 date：2011-09-13 sub：关于多层板开短路分析改善报告一目的：针对近期产线重新启动多层手机按键板大批量生产以来，其电测良率在70%-85%之间波动不稳，工艺就此异常寻求有效提升改善途径。
二开短路报废诊断：此次就电测测出开短路报废品进行深入剖析研究发现：二钻孔与一钻孔错位（两个坐标系不重合）不能同时对准外层菲林，导致要么是一钻孔要么是二钻孔发生偏孔破环开路或孔与相邻导线焊盘桥接短路，此种后果最为严重（基本为整张性报废）；外层因贴膜不紧引起的开路断线或内层皱折引起的曝光不良连线及外层抽真空曝光欠蚀不良引起的短路连线一旦控制不好一张板上就会有数个pcs遭殃：其次为内外层常规线路制作过程所遇到的定位或不定位开短路;还有个别为孔不导通的问题（包括压板分层，钻屑胶渣塞孔，沉镀铜孔破孔铜断裂，蚀刻破孔等）三制程异常调查发现：第一，在制作内层线路阶段偶有因开短路返洗返修不良比例就已偏高（一张板才12pcs，共有四层线路决定报废，不容其中任何一层线路出现哪怕一处开路或短路）其中因铜板皱折折痕引起曝光不良及暗房本身产生的定位或不定位开短路真的很难通过开路补点银油或短路刀尖割断方式彻底修好。
第二，因有些板暂停堆积滞留的时间过长或先后批次板因材料变更原因引起的板涨缩变形较不稳定所致的对偏破孔机率加大，增加了开短路的不确定性。
第三，暗房里各个料号的g2,g3内层菲林版本套数太多，有按原始资料1：1的，有做收缩多个比例的，很难保证g2,g3两个内层生产出来尺寸大小一致。
例如：s35875内外层线路及阻焊全收缩x-2.5y-1.5：s45672全套资料均为1:1：s45673b版内层g2面有两套资料，一套x-2.5y-1.5，另一套x-5.5y-4.5，其余g3面内层及g1，g4，gtl,gbl均为x-2.5y-1.5，gts,gbs阻焊1:1；s45673c版内层g2面有两套资料，一套1:1，另一套x-3y-3:,内层g3面及外层菲林为1:1：s46364内层g2,g3面各两套，一套1:1，另一套x-5y-5，s46365内层g2,g3面各两套，一套1:1，另一套x-5y0，此两款材料完全一样，内层菲林却各不相同！！！，其余资料均为1:1：s45289内层g2，g3面为x-7.5y-3.5，外层菲林为x-2.5y-1.5，但经材料沉镀铜涨缩测试，此款12/20无胶电解材料变形相对最小，只需控制皱折及板面平整s48290，s48291为新单量产，内层菲林按工程原始资料1:1在生产。
Part No.Material 生産日期1. Process Yield Control Remarks : Please fill white box onNO Input Q'ty1st pass Q'ty1st defect Q'tyScrap Q'ty123456789102.Process Defective Description In Detail 站Defective DetailsNo 數量比率纍計12345678Daily Yield ReportTotal不良現象Root CaWorkstation 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto Ch910111213141500站Defective DetailsNo 數量比率纍計12345678910111213141500站Defective DetailsTotalTotal不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto ChDefective Pareto ChNo 數量比率纍計1234567891067891000站Defective DetailsNo 數量比率纍計Total不良現象Root Ca不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto Ch2345678910111213141500站Defective DetailsNo 數量比率纍計12345678910111213Total不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto Ch1500站Defective DetailsNo 數量比率纍計12345678910111213141500站Defective DetailsTotalTotal不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto Ch0.811.2t y Defective Pareto ChNo 數量比率纍計12345678910111213141500站Defective DetailsNo 數量比率纍計12345Total不良現象Root Ca不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.6D e f e c t i v e Q 't y0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto Ch678910111213141500站Defective DetailsNo 數量比率纍計12345678910111213141500站Defective DetailsTotalTotal不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't y Defective Pareto ChNo 數量比率纍計12345678910111213141500Total 不良現象Root Ca0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.20.40.60.811.2D e f e c t i v e Q 't yDefective Pareto ChWork Order:Material Lot No.: Please fill white box only.Total 良品數1st Pass Yield(直通率)Final Yield100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%100.00%0100.00%100.00%Due day Ownerot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t eto ChartDue day Ownerot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t eo Charto ChartDue day Owner Due day Ownerot Cause Corrective Action ot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t e0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t eo ChartDue day Owner12.28ot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t eo ChartDue day Owner ot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t e o Chart75.0%100.0%t e o ChartDue day Owner Due day Owner ot Cause Corrective Action ot Cause Corrective Action 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%D e f e c t i v e R a t 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%25.0%50.0%75.0%100.0%D e f e c t i v e R a t e o Chart0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0% 25.0% 50.0% 75.0% 100.0% DefectiveRateo ChartDue day Owner ot Cause Corrective Action0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0% 25.0% 50.0% 75.0% 100.0% DefectiveRateo ChartDue day Owner ot Cause Corrective Action。
良率报表格式
良率报表的格式通常包括以下部分：
标题：报表的名称，如“产品A良率报表”。
日期：报表的生成日期，通常包括年、月、日。
产品描述：产品的详细描述，包括型号、规格、版本等。
生产数量：某一时间段内生产的产品总数。
良品数量：经过检测，符合质量标准的产品数量。
不良品数量：经过检测，不符合质量标准的产品数量。
良率计算：良品数量除以总生产数量，以百分比形式表示。
不良原因分析：对不良品的产生原因进行简要分析。
改善措施：针对不良原因，提出相应的改善措施或建议。
相关数据统计：如果有其他与良率相关的数据或统计信息，如合格率、退货率等，也可以包含在报表中。
备注：对报表的额外说明或注意事项。
这只是一个基本的良率报表格式，具体格式可以根据实际需求进行调整和增减。
