With SkyWater PDK 130nm we have:
- a number of special layers which mark various type of capacitors,
resistors, inductors etc. Various oxide thickness markers likes
high voltage are also used
- instead of lowes metal layer they are using that bloody local interconnect layer "li" (I guess it must be hight resistive wolfram)
So I have questions how to describe several thing in Electric tech file?:
- how to describe that via4 connects metal5 to cap2m if one (cap2m) present and to metal4 otherwise?
- how to describe that when metal1 is connected to active/diffusion
the connection is NOT m1-to-active-contact, but that "sandwich"
of mcon+li+licon, but licon is also independent "pseudometal" layer
which is connected to active with licon?
- does Electric already have some facility for generating inferred layers
in GDS output? I mean writing mcon+li+licon instead m1-to-active-contact when writing GDS
Steven, could you give an advice on issues above, looking on their layers map, please???
I also tried to ask the same question description of LIL for other technology, this time I tied to provide more clear formulation