sometimes brown oxide may cause laser via reliability problem.




At 2010-10-21 09:35:32，jan <[log in to unmask]> wrote:

>Brown oxide is more popular since the simple and fast procedure according to
>Original Black oxide.
>But Brown oxide is poor of bonding strength than Black oxide.  And for High
>speed design, Brown oxide is better because of the flatness of trace.
> 
>Best regards!
>Jan Chen
>
>-----Original Message-----
>From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of Richard
>Lenser
>Sent: Wednesday, October 20, 2010 10:38 PM
>To: [log in to unmask]
>Subject: [DC] brown oxide vs black oxide
>
>Hi,
>
>Our supplier is changing their process from black oxide to brown oxide.
>They 
>are asking us for approval.  Has anyone here gone through this change?  What
>
>are the benefits and/or problems?
>
>Thanks and best regards,
>
>Richard Lenser
>Niles Audio Corporation
>Miami, Florida
>
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so

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