9 Aug
2008
9 Aug
'08
6:42 p.m.
> When I worked at Odetics Anaheim,CA in the
mid-70s we used tons of
the
> "flatpacks" in our Spacebourne black
boxes. They came in TTL, CMOS
and I
> think even some ECL. The parts were spot welded
with the legs
straight
out
> to gold posts that protruded slightly off of the PCBs. Expensive
stuff,
a
> RAM chip cost about $600 at the time. The parts were real low
profile
and
> weighed less than DIPs ( important in spacecraft, weight / space is
at a
premium ). The
parts were all MIL-STD and some projects even RAD-
hardened
> parts. Fun stuff.