Werner, I would be surprised if Bill is not aware of this information since
he is regularly at our plant. Bill is a personal acquaintance and former
colleague of mine at NorTel. Essentially we have established cycles to
failure on IST and determined a minimum threshold that correlates to an
acceptable number of cycles of traditional air-to-air cycles. You may be
interested to note that in addition to IST, we also have two air-to-air and
one liquid-liquid thermocycling chambers at Circo.

regards
Dave

____________________________________________________
>Dave Rooke, Circo Craft - Pointe Claire,
>I and the IPC task group chaired by Bill Birch would be very much interested
>in the data from your IST versus traditional thermocycling study and the
>mathematical correlation performed.
>
>Werner Engelmaier
>Engelmaier Associates, Inc.
>Electronic Packaging, Interconnection and Reliability Consulting
>23 Gunther Street
>Mendham, NJ  07945  USA
>Phone & Fax: 201-543-2747
>E-Mail: [log in to unmask]
>
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