design_oriented
Advanced Member level 4
Hi Guys,
Are multi Vth FILLER cells only Nwell implants or are they full PMOS devices with VDD and VSS taps? As threshold voltage gets mentioned, I assume they have a gate and diffusion regions.
If they are just Nwell implants on P substrate i.e. diodes, what is meant by threshold voltage?
Thanks.
Are multi Vth FILLER cells only Nwell implants or are they full PMOS devices with VDD and VSS taps? As threshold voltage gets mentioned, I assume they have a gate and diffusion regions.
If they are just Nwell implants on P substrate i.e. diodes, what is meant by threshold voltage?
Thanks.