Optimizing the integration of DFM and P&R

Optimizing the integration of DFM and P&RDFM tools can help shorten design iterations, and improve yield, but they are typically not well-integrated with P&R environments. Back-annotation of DFM changes requires time-consuming database conversions from GDS/OASIS to DEF format. To support full integration with P&R tools, design verification and optimization tools must be able to read and write DEF files, either through direct read/write capabilities or by using database conversion processes.