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September 1999

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Subject:
Re: Ammoniacal vs Cupric chloride Etcher.
From:
Mark Mazzoli <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 9 Sep 1999 07:04:35 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (53 lines) 
Hi Lenny,

Basically, I believe ammoniacal etchant is a little faster than cupric.  But
I've had several cupric machines that ran faster than my ammoniacal lines.
That was all based on chamber length, fluid delivery and pump pressure.

Mark Mazzoli
Eng. Mgr.
Circuit Technologies, Inc.
[log in to unmask]
----- Original Message -----
From: Lenny Kurup <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, September 08, 1999 2:50 PM
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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