Hi all,
Some of the confusion might be cleared if we consider what, exactly,
each spec was intended to do.
IPC-D-356, Bare Substrate Electrical Test Data Format, defines the
standard netlist format by which bare board test information can be
represented. It's essentially a software format.
IPC-ET-652, Guidelines and Requirements for Electrical Testing of
Unpopulated Printed Boards, provides guidelines for selecting the test
parameters, fixtures and making other related equipment decisions.
(As yes, IPC-ET-652 was superseded by IPC-9252.)
Best,
Mike
Mike Buetow
Circuits Assembly
w/m 617-327-4702
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Chris Mahanna
Sent: Thursday, January 06, 2011 9:11 AM
To: [log in to unmask]
Subject: Re: [TN] IPC Standards
Steve,
From the IPC perspective, 9252A supersedes 652. However, ultimately the
answer to your question depends upon the transition policy of your
individual contracts.
In the absence of transition policy (likely), I would suggest that the
prescribed form provided by 9252 gives you better legal standing for a
CofC.
You will also find verbiage from IPC/TAEC as to the transition intent.
Yes you should stop stating that you have met 652, because to do so
places a cancelled/superseded document, as well as, all of the related
policy/procedure in your document control system; that's never fun.
Chris
Chris Mahanna
Robisan Laboratory
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steven C Carter
Sent: Thursday, January 06, 2011 8:23 AM
To: [log in to unmask]
Subject: [TN] IPC Standards
If a Bare PCB manufacturer provides a Certificate of Compliance stating
that the PCB was electrically tested per IPC-ET-652 does meeting this
standard by default mean that they have also met the requirements of
IPC-356? On a related subject, should the vendor stop stating they have
met ET-652 and state that they have met 9252A?
Thanks, Steve
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