What's the need for deep N-well?

[srihari465]

hi ,

please explain need for deep N-well








sreehari,

 

[mister_rf]

Re: need for deep N-well

Please use search:
https://www.edaboard.com/threads/52520/
https://www.edaboard.com/threads/114379/

 

[leo_o2]

Re: need for deep N-well

Deep Nwell can be used for High Voltage MOS too.

 

[Sidramareddy]

Re: need for deep N-well

Deep N-well can be used for the isolation purpose....

 

[Teddy]

Deep N well is used to create isolated NMOS structure. In fact it is just a deep N - diffusion (few um bellow the surface) which is connected through N-well to VDD and incide it you have island of P substrate. That way you isolate device from external interference

 

[amir88]

Deep N Well is chosen for forward body bias, too.

 

[ckshivaram]

check this
https://www.edaboard.com/threads/114379/
https://www.edaboard.com/threads/112374/
https://www.edaboard.com/threads/56445/