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config:layout [2022/06/19 14:29]
rajit [Metal layers] |
config:layout [2022/06/30 09:11]
rajit [Vias] |
| * ''surround'' section, containing | * ''surround'' section, containing |
| * ''up'': minimum surround on the upper layer | * ''up'': minimum surround on the upper layer |
| * ''asym_up'': minimum surround on two opposite sides; if this is different (and larger) than ''up'', then this corresponds to having an asymmetric contact. If this is equal to ''up'', then it corresponds to a symmetric contact. | * ''asym_up'': minimum surround on two opposite sides; if this is different (and larger) than ''up'', then this corresponds to having an asymmetric contact. |
| * ''dn'': minimum surround on the lower layer | * ''dn'': minimum surround on the lower layer |
| * ''asym_dn'': similar to ''asym_up'' for the lower layer | * ''asym_dn'': similar to ''asym_up'' for the lower layer |
| * Setting both ''asym_up'' and ''asym_dn'' to zero implies that the vias have symmetric surround. | * Setting both ''asym_up'' and ''asym_dn'' to zero implies that the vias have symmetric surround, and the ''up'' and ''dn'' parameters are used to determine the surround value. If either of the ''asym'' parameters are non-zero, then we assume that we are using asymmetric vias and the ''asym'' parameters are used. |
| * ''antenna'' is a section that contains any of the following: | * ''antenna'' is a section that contains any of the following: |
| * ''ratio'': antenna ratio for this layer (default is to omit this constraint) | * ''ratio'': antenna ratio for this layer (default is to omit this constraint) |