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Subject:	Re: Copper
From:	Chuck Brummer <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Wed, 9 Aug 2000 13:36:53 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (48 lines)

Rick,

The 43K is great.  The 20% is very high, did you just carbon treat?  You must have
almost no organics in there, is the plated copper dull or rough?  The holes will come
out great but if the copper is not "pretty" or you cannot strip the photo resist you
may have a problem.

Chuck Brummer
[log in to unmask]

"Howieson, Rick" wrote:

> We run copper plating tests monthly and send these to an independent lab
> for testing. The requirements are Tensile Strength 36,000 psi minimum
> and Elongation 6% minimum. My question to the experts is-- what if our
> readings were high, i.e. 43,000 psi and 20% elongation?
> TIA,
> Rick Howieson
> General Technology Corp.
>
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