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How much did a state-of-the-art semiconductor foundry cost in or around 1980?

Ideally I'd like to get data on how it changed over time from the seventies to present day, but even a single data point from around that time would be good to have.

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    That question is certainly too broad as it stands. You could build simple semiconductors (say, Germanium diodes) in a backyard shop with your friend from 3rd-party-sourced raw material, or you could be Fairchild Semiconductor, employing more than 5000 people - Both would be "state of the art". "Fab" is too broad in itself as well: fabricating semiconductors can be relatively easy, once you know how to do it and once you have engineered all the machines to produce them - so 90% of the process is research and engineering, not fabricating. Would you in- or exclude that? – tofro Aug 21 '17 at 9:48
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    Rummage around the CHM oral history archives if interested in such gritty details. See you for black coffee in a few months.... :) – rackandboneman Aug 24 '17 at 20:16
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    Here's some analysis of fabrication cost trends from 1980 to 1995: smithsonianchips.si.edu/ice/cd/CEICM/SECTION2.pdf – Jerry Coffin Sep 9 '17 at 23:25

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