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August 1998

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Subject:
From:
Ralph Hersey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 12 Aug 1998 13:48:34 -0700
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Hi Steve--

The printed board / printed board assembly company I'm most familiar with and would recommend is:

Pacific Metaplate Co.
P. O. Box 445,
18751, E. Hwy. 88
Clements, CA 95277

PHN:  209.759.3324

About 20 years ago, when I was chairperson of the IPC-R-700, we had the owner (and expert) Al Crow do a
technical presentation at the Repairability meeting.  The samples he brought of some of their work was
outstanding.

Depending on you needs/requirements they can do just about anything you will require, tradition conductor,
printed contact, plated-through hole, base materiel repairs and modifications.

At the time their specialty was what could be called a "cosmetic" repair.  Assume an internal conductor
"blow-outs" or needs to be re-routed.  They developed the technology to remove conductive patterns and base
materials down to about 5-6 layers, repair or modify the conductive pattern, and build their way back out
using woven glass fabric, that was selected to match the fabric style and resin color.  If you
wanted/needed, they had developed "brush plating" methods to electroplate all electrical reconnections.
They had "qualified" all their work and procedures to full MIL-SPEC's/STD's for all functional
environments, except for the statement/requirement "Thou shalt not repair printed boards/assemblies".  Some
of the samples they brought, you would have to accept the repair/modification because you couldn't see it.
The "cosmetic" repairs were "specials" (and somewhat expensive), their customers generally didn't need that
much of an extreme.

In my previous work life, we had received a brand new oscilloscope "plug-in" from a major manufacturer,
during acceptance testing as it was being passed around, it was dropped, breaking the corner and about 10
printed contacts from a $50+ k module, a replacement was about 6-months away and it was needed for some
programmatic work.  They replaced the broken printed edge-board connector - it faithfully worked for about
7 years that I know of.  Also over the years, had several plated-through holes (in multilayers, mostly
power/ground through hole component technology) repaired with never a future failure traceable to the
repaired plated-through plated-through hole(s).

Hope this helps, I know the recommended Circuit Repair Corp is good, but they're east coast.

Hope this helps -  Ralph

Stephen R. Gregory wrote:

> Hi ya'll!!
>
>      The one place I used to use for repairing lifted pads, traces, and the
> like, has disappeared (a company called the Trace Place), does anybody else
> have any good shops in this area that they would like to turn me on to? I got
> some pads to be replaced on a HOT prototype that I need fixed...It always
> works like this, you can build a thousand boards and not have one little
> problem, but when you only build ONE board (the ONLY board) you wind-up having
> something like this happen...SHEESH!
>
> I'd be forever in your debt...
>
> -Steve Gregory-
>
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--
Ralph Hersey & Associates
3885 Mills Way
Livermore, CA 94550-3319
PHN/FAX: 925.454.9805
e-mail: [log in to unmask]

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