Why Negative Skewed or Feed-forward Delay Cell for A Ring-based VCO?

[@abhiruplahiri1]

I read this (negative delay) paper more than a decade ago. Thanks for sharing this CC, it’s good to refresh always. Also, nicely explained feed forward concept for differential rings.

[@circuitimage]

Hi Abhirup, thank you so much for the kind words. Again, I'm happy you liked it. 😊

[@michaeletzkorn]

You mention towards the beginning that the PMOS skew is more noticeable in older technology nodes. How old are we talking? Some people define anything above 14nm now as “old”

[@circuitimage]

Hi Michael, nice to meet you and thank you for the good question. Correct. I should mention that the Planar device is old, and I meant the Fin FET device as the new technology. So, > = 28nm is old, but = < 16nm is still new. :)