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akacastor, 1 year ago to askelectronics in At what size of transistor does semiconductor manufacturing become practical for independent manufacture?

Sam Zeloof (sam.zeloof.xyz) has been working in the area of DIY semiconductor fabrication, and has successfully fabricated working ICs (from 6 - 100 transistors). He’s done an incredible job at reaching ~1970’s technology levels in a home lab.

Another example of DIY fabrication: hackaday.com/…/jeri-makes-integrated-circuits/ Jeri Ellsworth made her own silicon inverter.

These examples are still very small-scale compared to even simple microprocessors, etc - but it’s fascinating to see this level of technology becoming more accessible.