> Would it help if you had some physical ICs (in ceramic/metal
> side-braised pacakge) and could measure the feature size yourself with
> a microscope? If so, I think I have some of these ICs in my junkbox.
>=20
> Sean

That may be a route I could take, and I do have the tools available to me t=
o do so. Taken to the extreme the lab here where I work has a micro & nano =
technology section, nad I have a contact or two in there that could help.

I do have some AMD 1101A chips, which a colleague had stashed away somewher=
e, and has kindly passed on to me. He isn't going to use them - he retires =
in May anyway ... ;))

In answer to Olins comment about the 7um being pretty large, I took that fr=
om an HP Journal article where they were talking about the development of t=
he NMOS processor for the HP 9810/20/30 series calculators/controllers, and=
 they talked of scaling their 7um process down to 5um, so I felt that 7um m=
ay well be the prevailing geometry for the original 1101 chips from intel. =
In the sort of timescale that Olin noted the geometries may well have got d=
own to the 1um level as the processes became better understood.

I think I am going to have to dig around in relevant conference papers to s=
ee if I can find ones that deal with the introduction of these devices and =
the processes and geometries used.
--=20
Scanned by iCritical.

--=20
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