同意你的看法，因为此焊点连接着一条长条铜线，所以该焊点需要的热量更多。

----- 原始邮件 -----
发件人：Lu Chunli <[log in to unmask]>
收件人：<[log in to unmask]>
主题：Re: [TGAsia] 润湿角问题
日期：2011年12月08日 16点55分


应该是炉温的问题，而且是因为两次上锡的原因。第一次的焊点没有完全熔化。



From: Zhaojunbo [mailto:[log in to unmask]] 
Sent: Thursday, December 08, 2011 4:42 PM
To: Asia Committe Task Group Forum; Lu Chunli
Subject: 答复: 润湿角问题




什么原因造成的？从图片上看与周边焊点差异较大



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发件人: TGAsia [mailto:[log in to unmask]] 代表 Lu Chunli
发送时间: 2011年12月8日 14:31
收件人: [log in to unmask]
主题: [TGAsia] 润湿角问题


大家帮我看看这个种焊点应该算做哪种不良，润湿不好？但是又觉得不是缺陷吧？谢谢！







Lu Chunli
IPC Training Specialist
Tel: +86 10 6789.2929 - 190
Mobile: +86 13810570188
Email: [log in to unmask] 
www.enics.com



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