process

Also, check LibreSilicon [1], a free and open source semiconductor manufacturing process, currently in development. The target is 1 μm, but the developers said 0.5 μm should be possible. Here's a comprehensive introductory talk [2]. And as usual, the project is on GitHub [3]. If things went well, they said they planned to manufacture an open source RISC-V microcontroller, pin-compatible with Atmel AVR ATTiny. [1] https://libresilicon.com [2] https://media.ccc.de/v/35c3-9410-libresilicon [3] https://github.com/libresilicon/process

It's awesome people are working on this. Their progress is unfortunately is pretty hard to follow or even support. Their low-tech process steps: https://github.com/libresilicon/process/raw/master/process_s... Lightning talk during the 34c3: https://media.ccc.de/v/34c3-9256-lightning_talks_day_2#t=178... For an idea of how you could build transistors in your (admittedly pretty large) basement: https://www.youtube.com/watch?v=TrmqZ0hgAXk HN thread with article about a home-made litographically-fabricated IC: https://news.ycombinator.com/item?id=16955549