DC Current Induced Thermal Cycling (TN 650 2.6.26) is referred to, in
the industry, as Interconnect Stress Test (IST). As a point of
disclosure, I believe it is well known and I do not believe I violate
any IPC policy to say on TechNet that PWB Inc. provides IST test
equipment and test services. 

The CITC testing used by Endicott Interconnect Technologies (EIT) is
supporting, to the best of my knowledge, EIT's customer base. Since EIT
is a PWB fabricator, other fabricators, may be reluctant to have coupons
tested by EIT.

I have to point out that IST was developed, accepted by IPC as a method,
and brought to market mainly by the tenacity of Bill Birch and his
advocacy of the IST method. Rama Munikoti, Pulak Dhar, Bill and others
worked on early "Power Cycling" for reliability testing which is a
rudimentary fore runner to today's IST method. Since 1990 Bill Birch has
been the principle driver and developer of the IST method.



Sincerely, 
Paul Reid 

Program Coordinator 
PWB Interconnect Solutions Inc. 
235 Stafford Rd., West, Unit 103 
Nepean, Ontario 
Canada, K2H 9C1 
613 596 4244 ext. 229 
Skype paul_reid_pwb 
[log in to unmask] <mailto:[log in to unmask]> 


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dwight Mattix
Sent: November 23, 2010 3:03 PM
To: [log in to unmask]
Subject: Re: [TN] DC current induced thermal cycleing test, method
2.6.26

yes, EIT still runs it as "CITC".  Current Induced Temp Cycling.

At 11:24 AM 11/23/2010, Werner Engelmaier wrote:
>  Hi Louis,
>All DC current induced thermal cycling test 
>methods are based on the development of this 
>test methodology at Northern Telecom by Rama 
>Munikoti. Since Northern Telecom had no interest 
>in commercially exploiting this methodology, two 
>companies developed commercially viable test 
>apparatus from that original concept-PWB 
>Solutions  in Canada and IBM in Endicott. IBM 
>may still do this internally, but the IBM test 
>is commercially run by Endicut Technologies [I think this is correct].
>I hope this helps.
>Werner
>
>
>
>
>
>
>
>
>-----Original Message-----
>From: Louis Hart <[log in to unmask]>
>To: [log in to unmask]
>Sent: Tue, Nov 23, 2010 1:59 pm
>Subject: [TN] DC current induced thermal cycleing test, method 2.6.26
>
>
>TechNetters, at the end of test method 2.6.26, the document states
there are
>
>'other test systems that operate on principles similar...'
>
>
>
>Please advise me of any 'other' systems you know 
>of, and if you are aware of any
>
>labs that could do such testing.
>
>
>
>Thanks.
>
>
>
>Louis Hart
>
>Compunetics
>
>Monroeville, PA
>
>USA
>
>[log in to unmask]<mailto:[log in to unmask]>
>
>412-858-1272
>
>
>
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