SkyWater layers description issues

20 views
Skip to first unread message

Alexandre Rusev

unread,
Sep 15, 2020, 4:50:56 PM9/15/20
to electr...@googlegroups.com, Steven Rubin
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




SkyWater SKY130 Process Stack
Reply all
Reply to author
Forward
0 new messages