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<https://github.com/IHP-GmbH/IHP-Open-PDK/issues/218|#218 [bug] Unexpected USE ANALOG>
Issue created by <https://github.com/gudeh|gudeh>
Hi everyone. I believe I found an error on the PDK.

Shouldn't the instances types `sg13g2_or2_1`, `sg13g2_or2_2` and `sg13g2_nand2b_1` have `USE SIGNAL` instead of `USE ANALOG` for their pins? As in <https://github.com/IHP-GmbH/IHP-Open-PDK/blob/5a42d03194e8c98558f4e34538338a60550f89b9/ihp-sg13g2/libs.ref/sg13g2_stdcell/lef/sg13g2_stdcell.lef#L4527|this part of the LEF>.
<https://github.com/IHP-GmbH/IHP-Open-PDK|IHP-GmbH/IHP-Open-PDK>

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