How to separate the connection of source and bulk

[Patr!ck]

Hi all,
I'm in the hit-kit. When I add a mos, and select the "Substrate
Contact", the source and bulk are seems connected together by default.
But in some analog design, I don't want that, I need to separate them.
So how to do that?

Thanks!

Patrick

 

Patr!ck wrote:

Hi all,
I'm in the hit-kit. When I add a mos, and select the "Substrate
Contact", the source and bulk are seems connected together by default.
But in some analog design, I don't want that, I need to separate them.
So how to do that?

Analog or digital doesn't matter, S=B is broken unless the only
thing you build is inverters.

I don't know what a "hit-kit" is, but for analog design you should
be using 4-terminal symbols for your MOSFETs. (E.g., nmos4
and pmos4 from analogLib).

-Jay-

 

[Patr!ck]

Analog or digital doesn't matter, S=B is broken unless the only
thing you build is inverters.

I don't know what a "hit-kit" is, but for analog design you should
be using 4-terminal symbols for your MOSFETs. (E.g., nmos4
and pmos4 from analogLib).

Thank you!

I think I have solved this problem.

Patr!ck