吴工:
以下意见有没有在哪份标准中有明文规定或是定义?为什么免清洗的即使离子污染超标不会有影响?我们一直有这个困惑.客户一直要求做测试无论是哪种清洗.
Sunny
发件人: TGAsia [mailto:[log in to unmask]] 代表 wubosz
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主题: Re: [TGAsia] 如何改善PCBA的表面 清洁度（请能做IC Test i ng 的专业实验室帮忙）
如果是免洗工艺，如免洗锡膏、免洗波峰焊剂，没有必要测试离子污染，因为即使离子污染超标，产品的可靠性也没有问题；如果是水清洗工艺，必须测试离子污染。
在2010-03-25 09:41:26，"Frank Xiong" <[log in to unmask]> 写道：> >不好意思，改一下主题。
> >-----Original Message----->From: Frank Xiong [mailto:[log in to unmask]] >Sent: Thursday, March 25, 2010 9:39 AM>To: 'Asia Committe Task Group Forum'>Subject: RE: [TGAsia] 答复: [TGAsia] PCB阻焊剂的涂覆
> > >大家好：
> >请教大家一个问题：我们现在正请实验室用Omega Meter 600 SMD 来测试PCBA的离子污
>染度， 现想请教是否有那家专业实验室可以提供现场技术服务 / 同我们一起分析 可
>以做到“怎么样才能让PCBA离子污染度低“，也就是说让PCBA的表面洁净！！如果有测
>试结果超标，可以帮我们分析到是哪些制程会有影响！！谢谢！！
> >We are doing an IC testing using Omega Meter 600 SMD from one testing lab,>are there any professional testing labs to provide an "On Site Supervision>Service" to help us achieve the final target: The cleanliness level of PCBA>can meet GE custome requirment. Thanks for all of your help to provide such>info.> >Best regards,>Frank Xiong>Quality Manager>Trio Engineering Co., Ltd.>Tel.: (86) 20-8490 2933 Ext.257 >Fax: (86) 20-8490 2273 >Mobile >Email: [log in to unmask]>Web : www.triohk.com.hk> >______________________________________________________________________>This email has been scanned by the MessageLabs Email Security System.>For more information please contact helpdesk at x2960 or [log in to unmask] >______________________________________________________________________
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