{"guid":"9d8d4506-03b2-483d-aee5-d106f0a3eef5","title":"LibreSilicon","subtitle":"Decentralizing semiconductor manufacturing","slug":"35c3-9410-libresilicon","link":"https://fahrplan.events.ccc.de/congress/2018/Fahrplan/events/9410.html","description":"While a lot of projects are currently developing their own processors, mostly as open source in Verilog, VHDL or even Chisel, we miss the free process that actually manufactures these chips. So we're developing the \"Libre Silicon\" project, a portable semiconductor manufacturing process and technology, using only free and open source tools: We would like to introduce the project, who we are, what we are doing and where we are now.\n\nThe manufacturing is proprietary and has vendor lock-ins with triple NDAs – one for the \u003cb\u003eprocess development kit\u003c/b\u003e (PDK), the technology itself; – one for the Standard Cell Library you can use to synthesize your RTL; – and even another one for the details of all purchase commitments.\n\nOur purpose is a free and open, community based silicon manufacturing process (\u003ca href=\"https://github.com/libresilicon/process\"\u003eGitHub link\u003c/a\u003e) without any NDAs, a Standard Cell Library (\u003ca href=\"https://github.com/chipforge/StdCellLib\"\u003eGitHub link\u003c/a\u003e) not only for that process as well as a suitable, refurbished, new-written open source tool chain QtFlow (\u003ca href=\"https://github.com/leviathanch/qtflow\"\u003eGitHub link\u003c/a\u003e).\n\nDuring the last couple of months we already developed the first free 1µm process and are now close to manufacturing a first test wafer (\u003ca href=\"https://github.com/libresilicon/PearlRiver\"\u003eGitHub link\u003c/a\u003e). Even though 1µm does not sounds very ambitious, this process node is still quite well documented in text books, robust and 5 Volt-tolerant.\n\nOnce we get a hang on this, the machinery park in the clean room allows us to shrink down to 500nm and less.","original_language":"eng","persons":["leviathan","hsank","Andreas Westerwick"],"view_count":4634,"promoted":false,"date":"2018-12-27T00:00:00.000+01:00","release_date":"2018-12-27T01:00:00.000+01:00","updated_at":"2026-04-21T22:15:05.938+02:00","tags":["35c3","9410","Hardware \u0026 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