3. 产品是通过两道全检验证的，在线 100%功能检和 100%老化 24 小时测试。百年分析，产品内部稳压 管击穿是在用户端产生。因为所用市网电压为 120VAC/60HZ，频率较国内 50HZ 高，电路冲击相对较 大，若结合当地电网电压波动和用户选择感性负载，原设计预留的 0.4-0.5W（电路内部消耗 0.5W， 稳压管使用 1N4749A 1W），在峰值电压可能出现击穿。这种情况产生只是一瞬间，用户体会感觉插上 去就不会工作。
二极管虚焊
Байду номын сангаас
焊接不良
稳压管击穿
拟定/Prepare： John Chow
审核/Review： Colin Hu
第二步 (团队成员： 该栏目由相关单位填写)
/STEP2
(团队组成日期）: 5 月 8 日
（运用团 (协作人员): John Chow /Colin Hu /Alice /Huang xiaofeng/Mao Huaping 队方式解
决问题） (团队领导): Zhu Mengjie / Wu yusong /Liu chunlin /Teams
第三步 临时围堵解决方案/ Temporary solution：
/STEP3
1.内部邮件转发，通知到开发、生产和采购协助处理；
Pass above information to R&D, production Dept and Purchase team and ask them to pay much
Team
机遇问题/ accidental problem：非 机 遇 问 题 /Non- accidental problem ：
责任单位/ Resp Dept：
□
□
第一步 问 题 描 述 /Problem Description ： BND-60/SU74(TEMP-08) 产 品 不 良 / BND-60/SU74
拟定/Prepare： Huang xiaofeng 审核/Review： Zhu Mengjie 批准/Approval：Wu yusong
第四步 原因分析/ analysis of causes：
/STEP4
1. 针对二极管虚焊、漏检原因，品管检查到 2014 年 11 月份客户有过投诉并提供两只样品分析，经查，
attention about these problems.
2.核对现有生产工艺，检查工艺完整性。
Checking all guide file again in workshop and make sure the processing tehconology required
information and key QC points are showed in guide files.
The whole quantities’ timers are checked by function test and 24 hours aging test. QC analyses the timer’s damaged Diode came into being in customer’s side. As the customer’s local voltage is 120VAC/60HZ, our frequency is 50Hz which is lower than customer’s. Our original design was reserved 0.4-0.5W (Circuit internal consumption 0.5W, diode use 1N4749A 1W). If customer’s power grid has the voltage fluctuation and when it is inductive load, it would have a breakdown when it is crest voltage. The breakdown happen when customers plug in the timer.
是我们 SMT 外加工虚焊，流程上未设置电池回路检测，导致不良品的流出；
For the poor Soldering, QC has analyzed the two failed samples supplied by Steren in November, 2014. After checking the samples, they found the SMT Outward Processing was insufficient solder. QC checked the SMT without the process of the battery circuit detection which lead the timer failing. 2. 焊接不良，经对比图片红框部分，此处是手工焊接处，原因是继电器进、出导线采用人工焊接，员
8-D Correction Action
8DNo: 15BN8D05003
进料/IQC﹕□ 制程/PQC﹕□ 客诉/COMPLAIN﹕√ 内稽/INTERNAL AUDIT﹕□ 其它/OTHER﹕□
发出单位/From： 贸易部/sales
发出日期/Date：5 月 8 日
收文单位/RECEIVER：品管/QC
工缺少品质意识，且对焊台烙铁头缺少高温海绵的定期清洗，导致焊盘假焊、虚焊，焊盘周围残留 焊渣等不符合焊接要求的现象； For the poor welding marked red, the inlet wire and outlet wire are both welded by hands. But the Welding Operators do not clean the solder tip regularly by High temperature sponge which lead the bonding pad in bad quality.
/STEP1 (TEMP-08)have following problems
(1) 电池充电二极管虚焊/Diode welding not well；（2）焊接不良/poor soldering；（3）稳压二极管
损坏/zener diode is broken；
请分析原因并制定纠正预防措施。Please check and study the reason and make the correction action.