See my comments below, plz.
Dick
----- Original Message -----
From: <allisonp_at_world.std.com>
To: <classiccmp_at_classiccmp.org>
Sent: Thursday, May 25, 2000 7:09 AM
Subject: Re: Altair parts substitutions
> On Wed, 24 May 2000, Richard Erlacher wrote:
>
> > You're right about the PMOS=> NMOS=>HMOS=>CMOS shifts in technology,
but
> > I'd be surprised to learn that the 3000 series parts as well as the 82xx
> > bipolar parts weren't manufactured by NS, MMI, or TI.
> >
> > Dick
>
> Exactly. Intel had bipolar fab but limited capability. Actually you
> forgot Signetics and likely others that were used as silicon foundaries.
> This is something that has always been commonplace in the industry.
>
> However no one ever supplied the 3000 two bit slice other than intel.
>
I don't think this was an accident, nor was it a mistake. The only
reference I've ever heard/read made to a bipolar fab under Intel's ownership
has been from you. It's not unlikely that I could have missed it, being
relatively uninterested in issues like who owned the fab, but I have looked
inside a number (50 > n >150) Intel bipolar parts among others' bipolars,
and never have I seen one without another manufacturer's logo. MMI was
pretty common among them. This was done in order to "decode" IBM, HP,
Burroughs, and others' stock numbered parts when I happened on a significant
quantity.
>
<snip>
>
Received on Thu May 25 2000 - 16:03:10 BST