open-source-silicon.dev

Can someone tell from where this rule is taken from...
`sky130.get_grule('via2', 'met2')`
```{'min_enclosure': 0.14}```
Note: 'via2' refers to via(68/44) and 'met2' refers to met1(68/20) for sky130

I can see this <https://skywater-pdk.readthedocs.io/en/main/rules/periphery.html#via:~:text=0.150%20%C2%B5m%20Via%20must%20be%20enclosed%20by%20Met1%20by%20at%20least%20%E2%80%A6|https://skywater-pdk.readthedocs.io/en/main/rules/periphery.html#via:~:text=0.150%20%C2%B5m%20Via%20must%[…]0by%20Met1%20by%20at%20least%20%E2%80%A6> which is 0.055um...

<@U0169AQ41L6> <@U077KSRJ1C0>

Please look at the figures for via2 to refer to the rules you're looking for
(<https://skywater-pdk.readthedocs.io/en/main/_images/p041-via2_dotdash.svg|here>)

<@U076X3QB5NE> Why via2 ?.....'via2' maps to (68,44) which is via1 in sky130(<https://skywater-pdk.readthedocs.io/en/main/rules/layers.html#gds-layers-information:~:text=drawing-,68%3A44,-Contact%20from%20metal|here>)... and the rule says <https://skywater-pdk.readthedocs.io/en/main/rules/periphery.html#via:~:text=0.150%20%C2%B5m%20Via%20must%20be%20enclosed%20by%20Met1%20on%20one%20of%20two%20adjacent%20sides%20by%20at%20least%20%E2%80%A6|this>

What is Linen?