Not quite true.
The Dram problem was one of those "we knew it was comming" due
to shrinking geometry items. The source of the radiation was the Gold
eutectic braze. The specific radiation was alpha particles. FYI the
solution was organic based die overcoat. Testing for the phenomina was
undertaken to verify and analyze the phenomina by NEC,IBM and MOTO
(to name a few) using initally small geometry 16k single voltage (i2118
style) parts.
FYI: the coors ceramic parts were morecostly due to the gold! They
however were better for hermetic performance than slab with glass frit
sealed packages.
Allison
-----Original Message-----
From: Richard Erlacher <edick(a)idcomm.com>
To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org>
Date: Monday, November 19, 2001 11:00 AM
Subject: Re: Intel C8080A chip brings $565 on EBAY
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.
Dick
----- Original Message -----
From: "Douglas Quebbeman" <dhquebbeman(a)theestopinalgroup.com>
To: <classiccmp(a)classiccmp.org>
Sent: Monday, November 19, 2001 7:37 AM
Subject: RE: Intel C8080A chip brings $565 on EBAY
> It's very late run ceramic. Ceramic for
chip substrates only comes
from a
> > few vendors one being a beer maker in the rockies a few in the far east
and
Europe.
heh... actually, Adolph Coors spun-off its non-brewery assets in 1992
into ACX Technologies, and most recently, CoorsTek (formerly Coors
Ceramics) was spun-off into a wholly separate company on Jan 1, 2000.
-dq