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Guild: wafer.space Community
Channel: Information / questions / Detailed Routing Antenna Violation
After: 11/30/2025 23:59
Before: 01/01/2026 00:00
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[12/03/2025 15:21] trev5514
I've tried doing 20+ iterations on the detailed routing antenna fixing, and I have a single stubborn net/pin violation.


+ check_antennas 
[INFO ANT-0002] Found 1 net violations.
[INFO ANT-0001] Found 1 pin violations.

Even after 40 total iterations, it will not fix this. Does anyone know how I can figure out what net/pin this is and possibly how I could fix this?


[12/03/2025 17:07] scafir
I had somewhat similar issues on klayout where it was not clear where the error was coming from.
Safest way to proceed was to copy the part of the design that failed, and cut connections until the error was gone


[12/03/2025 20:06] mole99
The antenna summary should show you the affected net/pin.
LibreLane allows you to manually insert antenna diodes:

```
...
  substituting_steps:
    +OpenROAD.DetailedRouting: Odb.InsertECODiodes
...
```

```
INSERT_ECO_DIODES:
- target: instance/pin
```


[12/03/2025 20:11] trev5514
Less is more I guess. Either I had a stubborn pin or something else, I ran it with only 10 iterations and it stopped after 6 and says it's all clear.


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