040000 tree 7e45bf92b4efc997c72bffdd9be3b9aef8078fda	sky130_fd_io
040000 tree dc644a6da6843a294a74b74a64e2b7a0572ed7d4	sky130_fd_pr
040000 tree 4509b92a8134bb04351d12db67ce7c36e80add9d	sky130_fd_sc_hd
040000 tree 629a357051ac835666cccf3e2deb5c2a952a4340	sky130_fd_sc_hvl
040000 tree cfc8678dc2b320da9fd0d34f9799e0c0023c90c8	sky130_ml_xx_hd