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Design >> Analog Design >> MOM Capacitor Layout
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Message started by niloun on Aug 7^th, 2020, 6:33am

Title: MOM Capacitor Layout
Post by niloun on Aug 7^th, 2020, 6:33am

Hi,

I need to design a custom-designed MOM capacitor.
I have looked into the layout of a MOM capacitor in 65nm CMOS technology, and I am a bit confused. There are many layers that I don't understand the purpose of them (except for metal layers which I am sure about their functionality). Could you please explain which layers are necessary for the design of a MOM capacitor?

Thanks

Title: Re: MOM Capacitor Layout
Post by Maks on Nov 14^th, 2020, 11:10pm

You need only metal and via layers, to design MOM capacitors.
Shielding is important if you need a precise capacitance matching, for analog circuits.

You can read a bit more here, about MOM capacitors:

https://www.semanticscholar.org/paper/MOM-capacitor-simulation-challenges-and-solutions-Ershov/fad50b708685f155e47793dd916a6ba114fb091f