feat(precheck): IHP KLayout DRC

precheck/precheck.py

@@ -81,6 +81,7 @@ def klayout_drc(gds: str, check: str, script=f"{PDK_NAME}_mr.drc", extra_vars=[]
         f"{check}=true",
         f"input={gds}",
         f"report={report_file}",
+        f"report_file={report_file}",
     ]
     klayout_args = ["klayout", "-b", "-r", f"tech-files/{script}"]
     for v in script_vars + extra_vars:
@@ -102,6 +103,10 @@ def klayout_zero_area(gds: str):
     return klayout_drc(gds, "zero_area", "zeroarea.rb.drc")
 
 
+def klayout_sg13g2(gds: str):
+    return klayout_drc(gds, "sg13g2", "sg13g2_mr.lydrc", extra_vars=[f"in_gds={gds}"])
+
+
 def klayout_checks(gds: str, expected_name: str, tech: str):
     layout = pya.Layout()
     layout.read(gds)
@@ -355,6 +360,11 @@ def main():
                 "pin_label_purposes_overlapping_drawing.rb.drc",
             ),
         },
+        {
+            "name": "KLayout SG13G2 DRC",
+            "check": lambda: klayout_sg13g2(gds_file),
+            "tech": "ihp-sg13g2",
+        },
         {"name": "KLayout zero area", "check": lambda: klayout_zero_area(gds_file)},
         {
             "name": "KLayout Checks",

precheck/reports/.gitignore

@@ -4,6 +4,7 @@ drc_offgrid.xml
 drc_pin_label_purposes_overlapping_drawing.xml
 drc_zero_area.xml
 drc_nwell_urpm.xml
+drc_sg13g2.xml
 magic_drc.mag
 magic_drc.txt
 results.md

precheck/tech-files/README.txt

@@ -2,3 +2,9 @@ sky130A_mr.drc from https://github.com/chipfoundry/mpw_precheck revision 3467a4c
 pin_label_purposes_overlapping_drawing.rb.drc from https://github.com/chipfoundry/mpw_precheck revision f6b9c3d3f00694f96dce8444149449b4719180f0
 zeroarea.rb.drc from https://github.com/chipfoundry/mpw_precheck revision 4fd5283b124e931c9e71219f47270075176f84e2
 nwell_urpm.drc from https://open-source-silicon.slack.com/archives/C05FW1VMY5A/p1729112262642699?thread_ts=1728921677.220509&cid=C05FW1VMY5A
+
+sg13g2_mr.lydrc:
+  from https://github.com/IHP-GmbH/TO_Apr2025 revision 772a369f3ceabc2c6e1eba57d91ae755682c8323
+  with the following minimum density rules disabled:
+  - M1.j, M2.j, M3.j, M4.j, M5.j
+  - M1Fil.h, M2Fil.h, M3Fil.h, M4Fil.h, M5Fil.h