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March 2002

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Subject:
From:
"Sauer, Steven T." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 28 Mar 2002 07:47:20 -0500
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Hello Wee Mei,
To my knowledge, the information that you are looking for does not exist in
a replacement military specification nor other industry association
documents.
On one hand, the information contained in MIL-C-28809 was considered
requirements for "standard" repair/modification.  Repair and modifications
that did not fall within these requirements, "non-standard", were turned
over to a Material Review Board (MRB) and dependent on contractual
requirements may have included customer review and approval/disapproval.
With today's technology and the ever changing end use environments,
"standard" repairs should be reviewed by a MRB for issues related to
quality, performance, reliability and maintainability of the deliverable
product. The guidance information contained in MIL-C-28809 can be used to
develop criteria for use by a MRB or better yet, used to develop an in-house
procedure for standard repairs that defines specifics for your products.
IPC-7721 (supercedes IPC-R-700) is widely accepted and used for repair and
modification of electronic assemblies, but it does not contain "maximum
allowable" criteria.

Steve Sauer

-----Original Message-----
From: fullname [mailto:[log in to unmask]]
Understand that MIL-C-28809 has been cancelled. However, there are two
tables indicates in this mil-spec on the max. number allowed permitted
for plated-thorugh hole repair and circuit repair. Can someone point to
me where else can I find similar tables for repair under IPC standards?

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