QRC Usage

Techlib Setup

The output of the cds_qrc_techgen process is a technology directory(ies) that corresponds to a particular process corner/option. In order to use the extraction results, this technology directory should appear as rule or corner when running parasitic extraction (PVS->Quantus QRC). To do this, you need to provide a path to that directory by defining a corner.defs file in the tech library path which might look like:

DEFINE TYP <PATH TO typical corner QRC run directory>
DEFINE SLOW <PATH TO slow corner QRC run directory>
DEFINE FAST <PATH TO fast corner QRC run directory>

Note

This corner.defs file must be placed inside of a library that is defined in Cadence (via cds.lib and/or pvtech.lib) by whatever file you specify as the Quantus QRC tech lib in the run menu.