Hi HAO,
建議可朝如下現象來觀察及分析


1.      如異常產生在綠油表面-

A.      ENIG 後產生之綠油色差

B.      綠油塞孔後產生厚度色差

2.      如異常產生在基材面

A.          鑽孔後產生之基材分層或微裂.

以上可再請 PCB 供應商提出較詳細之分析來層別問題及獲得改善!

Best Regards.
黃國益 ( Jackie Huang )
Molex Copper Flex Products, Asia
Engineering Manager
886 2 8511-0988 X 2801 (Desk)
886 2 8511-0989 (Fax)
886 983-075-923 (Mobile)
[log in to unmask] (e-mail)
From: TGAsia [mailto:[log in to unmask]] On Behalf Of wuhao
Sent: Friday, August 26, 2011 12:43 PM
To: [log in to unmask]
Subject: [TGAsia]

All :

Does anyone can share the experience of this similar case ?thank you !

Best regards
HAO

________________________________
From: wuhao [mailto:[log in to unmask]]
Sent: Thursday, August 25, 2011 4:58 PM
To: 'Asia Committe Task Group Forum'
Subject: RE: [TGAsia]
Dear all ：

在我司產線上發現有1款pcb vias 周圍有白色斑跡 現象，如下圖

請大家分析下造成此問題原因



[cid:[log in to unmask]]

thanks
HAO

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