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This PR is a continuation of @LuighiV's PR#54. It adds support for the option-B MiM capacitor in the gf180mcuD process.

The layout is extracted as cap_mim_2f0_m4m5_noshield.

DRC clean with drc(full) , Magic VLSI v.8.3.489, ciel version of gf180mcu: 4d004a98790dbffee2f4c725606ca580495921b4 (2025.09.02)

Added initial support for option A, but it is not yet complete. If no option is given to mimcap() call, the default choice is option B

For future work, we need to:

  • add proper layers for sky130 (and ihp130), so that the mimcap routine works in other PDKs as well.
  • for the other flavors of gf180mcu (fewer metal layers), need to change topmet and topmet-1 (for version D that is metal5 and metal4)

@msaligane msaligane requested a review from amisapta15 October 24, 2025 17:30
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It seems there are some conflicts?

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3 participants