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November 1997

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Subject:
Re: Plating integrity in small vias
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TechNet Mail Forum.
Date:
Wed, 26 Nov 1997 00:24:21 -0500
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text/plain (27 lines) 
The IST test is a test where daisy-chains of 100 PTVs or more, which are
cyclicly resistance heated and continuously resistance monitored to establish
the number of cycles to failure of either the PTV barrels or the
barrel-to-innerlayer interconnects.
The test method is being round-robined by 2 IPC task groups and is in the
process of becoming an IPC-TM.

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 904-437-8747, Fax: 904-437-8737
E-mail: [log in to unmask]

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