有关这个问题,需要弄清楚以下问题才能分析:

1. 引线基材/涂层是什么? 印制板过孔的涂层是什么?

2.裂开的详细位置在什么地方? 是引线与过孔裂开,还是其他地方?

3. 波峰焊的温度设置的Tg与TAL是多少? 波峰焊接的材料与助焊剂是什么?

4.造成失效的这种问题中在生产过程中出现的,还是客户使用之后出现的>概率是多少?

深圳市拓普达资讯有限公司
美国SMTA深圳办事处
深圳市南山区南山大道桂庙路26号光彩新天地13楼A1-A2室
TEL:0755-86196417转802
E-mail:[log in to unmask] [log in to unmask]
网址: http://www.smte.net
FaX:0755-86196453

----- Original Message -----

From: [log in to unmask] href="mailto:[log in to unmask]">WTSZ-Anny Zhou

To: [log in to unmask] href="mailto:[log in to unmask]">[log in to unmask]

Sent: Tuesday, March 11, 2008 1:17 PM

Subject: [TGA] 转发: Discrepant Material Report #IRR-08 0088 Requires Disposition.

Dear All，

有谁帮我看看附件上的几幅图片，什么情况下可能会造成如此锡裂？谢谢！

发件人: WTSZ-WenLi Mao
发送时间: Tuesday, March 11, 2008 12:22 PM
收件人: WTSZ-Anny Zhou
主题: 转发: Discrepant Material Report #IRR-080088 Requires Disposition.

FYI

Important Notice: This message is intended only for use by the addressee(s) and may contain information that is privileged and confidential. If you are not the intended recipient(s), you are hereby notified that any form of disclosure, distribution, copying or use of this communication is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by reply and delete the email and destroy any copies of it. This email is for information purposes only and is not intended to nor will it create any binding legal relations. Wong's International (Holdings) Limited.