cmos circuit

[Parth86]

Q1) how can we reduce power dissipation in cmos circuit?

Q2)why nmos and pmos have different W/L ratio
to obtain the same raise time and fall time in cmos circuit , the w/l ratio of Pmos should be double then nmos

 

[Parth86]

what should we do to achieve specific delay
just example for my understanding ( 215 ps)

I think I need following thing but its not all I am missing some
1.power supply
2.threshold voltage for nmos
3.threshold voltage for pmos
4.load capacitance

please anyone tell me what should we do to achieve 215 ps delay

 

[audioguru]

You are trying to design a Cmos IC but nobody on this forum has ever done that.
You need to ask an engineer who has done that or ask your teacher.

 

[Parth86]

You are trying to design a Cmos IC but nobody on this forum has ever done that.
You need to ask an engineer who has done that or ask your teacher.

I don't know any experience design engineer. I just wanted to know method I mean I have decided specification and i wanted to start next step but ok thanks for giving valuable response

 

[audioguru]

I am an experienced design engineer but I have never designed an integrated circuit and I do not know an engineer who designs them.

 

[Parth86]

I am an experienced design engineer but I have never designed an integrated circuit and I do not know an engineer who designs them.

can you suggest me another way ,how to learn ?

 

[kubeek]

You said you are doing some kind of online course or something. I bet they have some material for you to study before you do the test.
Or, you might try going to school.

 

[audioguru]

Most of us learned electronics in University. When I went to University 50 years ago they did not teach how to design a Cmos integrated circuit but maybe they teach it today.