Back in the early days of 64k DRAMs, the COORS
ceramics were described as
having
too much radioactivity for use in high-density
memories. I'm not sure that
was,
in fact, the case, but somebody seems to have thought
so. Do you suppose
they
fixed that? Coors was a leader, in the '60's
in porcelain tooling and other
such oddities, not to mention having "perfected" the draw-and-iron process
for
making thin-walled aluminum beverage cans.
My 8k EconoRAM IV, one of the first S-100 boards to use DRAM, used the
very chips that supposedly had that problem. I've been told mine are
OK, but it used to be a bit flaky; however, I always blamed that on
the state of the early S-100 systems and my soldering work on the SOL
to which it was attached... I solder *much* better now... -dq