Perimeter contribution to area for antenna DRC checks #570
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klayoutmatthias
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* First implementation of the perimeter factor for antenna check, unit tests. * Bugfix and unit tests for GSI binding of new antenna check version. * DRC integration of perimeter-enabled antenna check. * Enhanced DRC doc for antenna rule
klayoutmatthias
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* First implementation of the perimeter factor for antenna check, unit tests. * Bugfix and unit tests for GSI binding of new antenna check version. * DRC integration of perimeter-enabled antenna check. * Enhanced DRC doc for antenna rule
klayoutmatthias
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While doing this, it was discovered that the problem also persists for EdgePairs and Texts. In order to provide a more generic solution, some refactoring was applied.
klayoutmatthias
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In the TSMC tecnology I am using now, the antenna ratio is defined by only using the perimeter of the metal and only the area of the gate. I don't think your fix can handle using perimeter only of the metal in the drc. I only see area_only() and area_and_perimeter(), not perimeter_only(). |
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Some design rules require the antenna area to be computed by taking the perimeter into account. So the effective metal area is:
(A is the metal area, P the perimeter and d some "thickness").
Right now, this perimeter contribution can't be included.
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