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September 1999

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Subject:
From:
Yu-Shan Han <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 8 Sep 1999 22:08:48 -0700
Content-Type:
text/plain
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text/plain (53 lines)
Dear Lenny:

I saw a cupric chloride DES line which has a 8 fpm maximum speed, while most
ammoniacal DES lines (about same length or shorter) can run as fast as 15
fpm.

Yu-Shan Han, Ph.D., P.E.
Lead One Technology, Inc.
Seattle, WA
(206) 368 - 8429

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Lenny Kurup
Sent: Wednesday, September 08, 1999 11:51 AM
To: [log in to unmask]
Subject: Re: [TN] Ammoniacal vs Cupric chloride Etcher.


> What system etches faster, ammoniacal or cupric chloride? Based on
> typical PCB manufacturing, and common chemistries i.e. nothing too
> fancy and juiced.
>
> LK

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