Not technically efabless but done by Google with the open source GF180MCU on the standard GF shuttle program (lumped in with other FOSS runs as it is also found at https://foss-eda-tools.googlesource.com/third_party/shuttle/gf180mcu/).

18H1: 18th run, h1 ⇒ first half of year

• Source found @ https://github.com/idea-fasoc/openfasoc-tapeouts/tree/main/mpw18h1
• GDS sent for production found @ https://foss-eda-tools.googlesource.com/third_party/shuttle/gf180mcu/mpw-18h1/slot-004/
• Paper about the silicon @ https://ieeexplore.ieee.org/abstract/document/10584418

Package

Die