I am looking for information on ancient RAM chips, specifically 1101, 1103,=
 2101 and 2102 types, but later chips also required. Datasheets would be he=
lpful, but I am really after information on the geometries used.=20

What I do know about them ...

1101 256 bit x1 static RAM, P-MOS, geometry size unknown, introduced by int=
el in mid to late 1960s.

1103 1k bit x1 dynamic RAM, P-MOS, geometry size unknown, introduced by int=
el about a year after 1101.

2101 256 bit x4 static RAM, N-MOS, geometry size unknown, introduced by int=
el in late 1960s/early 70s.

2102 1k bit x1 static RAM, N-MOS, geometry size unknown, introduced by inte=
l in 1970s.

At this stage I have no information on 4k x1 dynamic RAM chips, apart form =
they came in two flavours, 16 pin with multiplexed address (like later 16k =
ones) and 22 pin without multiplexed address.

I have a TI databook (copyright 1985) that has datasheets for 4116 16k bit =
x1 dynamic RAM chips, but back then the datasheets did not seem to contain =
any info on device geometry sizing.

Also after geometry details for 1702 and later EPROMs and corresponding ROM=
S.

Gleaning info from HP Journals for the time suggests that the devices proba=
bly used geometries around 7 micron, but would like to ascertain actual geo=
metry sizes used.

Ideally I need citable references for any information, but I will take anyt=
hing that anybody knows, or has heard through the grapevine. Information wa=
nted for use in an honours degree dissertation.

TIA

Alan
--=20
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--=20
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