On Jun 15, 7:27*pm, Andy Champ wrote:
The Natural Philosopher wrote:

Mil spec semiconductors have better seals and pay attention to
differential thermal coefficients in the packages.

Bumped into a chip once (NEC V40 IIRC) where the extended range one was
done on a bigger technology - 8 micron, not 5, or something like that.
Can't check, the book is at work.


If it was mil spec that may have had more to do with a mil qualified
production line not being available for the smaller geometry, or it
may be realated to radiation hardening.

MBQ