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January 2002

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Mon, 28 Jan 2002 11:01:13 EST
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Earl,

I used the Heller four zone oven (thinks its a five) to float .190 inch thick
16 layer (double sided SM) with an active .060 thick CIC slab in the center.
The oven worked great.  By the way I used the RF SuperMole on each run and
used a fairly large sheet steel fixture... talk about thermal profiling!
This was all compliant to the MIL-STD-2000 spec and a tough QA group.  Later
a larger volume went through the Conceptronic oven without incident.
[Success was a function of dummy parts and teaming process controls... hence
its not all the oven.]  Major reason for the fixture: boards got very heavy
after a few of them...

Coretec's Boston Brad

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