On Benchmarking Pin Access for Nanotechnology Standard Cells

This article investigates pin accessibility problem of standard cells designed with a sub-20nm technology. The 15nm open cell library from NanGate and three of its variants with a reduced number of access points per pin based on FreePDK15 are used for our study. Our experiments show that a standard cell library is viable when the number of access points per pin is not less than three.