武汉电信器件有限公司
工程部  王云峰
TEL  13886135361 
Mobile 13517270161
Date  2011-07-22
 


发件人: TungKueng Yiu
发送时间: 2011-07-21  16:39:05
收件人: [log in to unmask]
抄送:
主题: [TGAsia] 答复:_[TGAsia]_板边白色粉 尘状物质
 

从图片上观察,粉尘颜色偏白,你的板件所使用的材质可能是cem-3,是环氧或有添加剂一类的材料,耐热性、可加工性较差。此种材料IPC里面规定只可以加工低层板(2-4layers)。从上面积攒一层较厚的粉尘看,不是PUNCHING的外形制程,而是ROUTING。第一个影响是锣刀寿命控制(锣刀管控有影响),第二个较为重要,吸尘能力较弱,并且生产完没有做槽内的清洁,通常这样的问题是锣机自带吸尘器吸力不足(有企业使用高压气枪吹),同时这板子如果能在生产后增加一道水洗也可以,谢谢!




Any Requests, please feel free to contact me! I'll reply to you a.s.a.p. At your service and best regards!
如果有任何需求,请您别介意联系我!我将第一时间回复您。谢谢&顺祝祺昌!

Davie TungKueng Yiu / 姚东强
Quality Department Engineer
SCC[log in to unmask]">
Tel: (86 755) 89300000 ext. 10113
Fax: (86 755) 86096378
Mobile: (86) 15814058013
E-mail: [log in to unmask]

Http: //www.scc.com.cn
本邮件包含信息归发件人及发件人所在组织所有。请接收者注意保密,未经发件人书面许可,不得向任何第三方组织和个人透露本邮件所含信息的全部或部分。如果您错收本邮件,请您立即电话或邮件通知发件人并删除本邮件。
This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the originator of the message.




Kevin Qu <[log in to unmask]>
发件人:  TGAsia <[log in to unmask]>

2011-07-21 14:24

请答复 给
Asia Committe Task Group Forum <[log in to unmask]>; 请答复 给
Kevin Qu <[log in to unmask]>

收件人
<[log in to unmask]>
抄送
主题
[TGAsia] 板边白色粉尘状物质





All
 
参考附件图片,分板后有一部分板的板边发现有白色粉尘状物质,请问是什么原因导致?有什么样的影响?
 
BRs!
Kevin Qu



______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________[附件 "clip_image002.jpg" 被 姚东强/scc 删除]


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________