All-digital PMOS and NMOS process variability monitor utilizing buffer ring with pulse counter.

Jaehyun Jeong Tetsuya Iizuka Toru Nakura Makoto Ikeda Kunihiro Asada All-digital PMOS and NMOS process variability monitor utilizing buffer ring with pulse counter. 79-80 2011 ASP-DAC http://dx.doi.org/10.1109/ASPDAC.2011.5722297 conf/aspdac/2011 db/conf/aspdac/aspdac2011.html#JeongINIA11