General topics about Free and Open Source Silicon Please make project announcements in #projects or #ai-projects

Announcements about the FOSSi Chat server.

IEEE SSCS Chipathon 2025 https://github.com/sscs-ose/sscs-chipathon-2025 Friday meetings at 11AM Eastern Time at this zoom link https://us06web.zoom.us/j/83060635740?pwd=UbIWLnu8C7nyLTZE7JglzRgbwSa23r.1

Discussions about the IHP SG13 Open PDKs and processes https://github.com/IHP-GmbH/IHP-Open-PDK

Analog and mixed-signal design discussion

Discussions about the SkyWater sky130 open PDK and process

Discussions about the OpenROAD synthesis, placement, and routing application https://theopenroadproject.org

Discussion for the Efabless Chipalooza challenge of 2024 Bring-up, testing, results, etc.

Discussions about the xschem schematic editor and schematic capture application by Stefan Schippers

www.klayout.de

Discussions related specifically to the "open_pdks" PDK (process design kit) builder/installer (for discussions about a specific open PDK, there is a room for each open PDK). https://github.com/RTimothyEdwards http://opencircuitdesign.com/open_pdks

Discussions about ngspice, the open source SPICE simulator

LibreLane, the ASIC infrastructure library. https://github.com/librelane/librelane

Magic VLSI layout editor discussion https://github.com/RTimothyEdwards/magic http://opencircuitdesign.com/magic

All about digital design.

Discussions about the GlobalFoundries GF180MCU open PDK and process

Matrix space containing all rooms in FOSSi Chat

This is a room for job offers and job seekers related to open source silicon.

To discuss MPW, sharing of a tile or a full-mask set, packaging etc.

All about RISC-V

Events taking place in the FOSSi space and beyond.

Superseded by LibreLane: https://github.com/librelane/librelane

Discussions about the automation of analog flows; e.g., BAG, ALIGN, open FASoC, RALF, etc.

LVS (Layout vs. Schematic) discussion, including LVS with KLayout and netgen. https://github.com/RTimothyEdwards/netgen http://opencircuitdesign.com/netgen

Discussions around the silicon hardware from open MPW shuttle runs, e.g., the Efabless/Google open MPW runs and Efabless chipIgnite runs.

For all topics that do not belong in other rooms.

Discussions around SRAM and open-source SRAM compilers.

https://TinyTapeout.com

HeiChips 2026 Summer School https://heichips.github.io