#345 KLayout: wrong LEF/DEF mapping for boundary Issue created by mole99 It seems that the KLayout LEF/DEF mapping uses the wrong layer:datatype pair for `DIEAREA`: IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/sg13g2.map Line 154 in</IHP-GmbH/IHP-Open-PDK/commit/4c6508d03a3078b21c737d04fae5dccec9aa590f|4c6508d> | DIEAREA ALL 235 4 | | ----------------- | 235:4 is the layer:datatype for

prBndry

from sky130: https://skywater-pdk.readthedocs.io/en/main/rules/layers.html Taking a look at the "SG13G2 Layout Rules" it seems that 189:0 is the correct layerdatatype Image But if we look at the

sg13g2_stdcell

cells we can see that 189:4 is used exclusively for the boundary. The KLayout layer property files designate 189:4 as prBoundary.boundary: IHP-Open-PDK/ihp-sg13g2/libs.tech/klayout/tech/sg13g2.lyp Line 5664 in</IHP-GmbH/IHP-Open-PDK/commit/4c6508d03a3078b21c737d04fae5dccec9aa590f|4c6508d> | <source>189/0</source> | | ---------------------- | So it seems that 189:4 is the correct layer:datatype pair for

DIEAREA

. --- In summary: 1. The KLayout LEF/DEF mapping uses the wrong layer:datatype for the boundary 2. The documentation is missing 189:1 and 189:4 and should probably state that 189:4 should be used as boundary 3. I'm not sure what the

COMP

statement in the LEF/DEF mapping is used for, maybe someone can clarify that? Thanks! PS: It seems the LEF/DEF mapping was initially copied from the OpenROAD-flow-scripts: https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts/blob/master/flow/platforms/ihp-sg13g2/sg13g2.map So it should probably either be removed or updated on there. IHP-GmbH/IHP-Open-PDK