Skull shaped MOSFET cells for SkyWater 130 nm CMOS process

• Inverter
• NAND

You need to SkyWater's SKY130 PDK installed in order to build the cells. Set the PDK_ROOT environment variable to point to the root of the PDK installation. You can use volare to install the PDK (and then set PDK_ROOT to ~/.volare).

• Run make to build the GDS/LEF files
• Run make sim_nand to run a simulation of the NAND cell (requires ngspice-41 or newer)

Copyright (C) 2021-2023 Uri Shaked