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Subject:	Re: Alloy42
From:	Dan Brandler <[log in to unmask]>
Reply To:	[log in to unmask]
Date:	Thu, 30 Oct 1997 11:41:04 -0800
Content-Type:	text/plain
Parts/Attachments:	text/plain (39 lines)

tonghh wrote:
>
>     Hello to all technetters :
>
>     Recently I have been trying to figure out the best pretreatment method for
>     alloy42 materials for further plating processes .Could someone share some
>     info on this , since alloy42 materials is very sensitive  in nature . We
>     have tried using 5% sulphuric acid and others proprietary chemicals also
>     sulphuric acid based , the operating window is limited .
>
>     Thanks .
>
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Tongh, It seems to me that 5% sulfuric is too weak. Try increasing the
concentration and/or temperature. You didn't say what is the problem
you're trying to solve, so I don't know what else to tell you. Good
luck. Dan Brandler, Technical Director, Ohmega Technology.

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