Tuesday, March 27, 2012

AMS Verification Interview Questions : MOSFET

Q1. What is a MOSFET?
http://www.doe.carleton.ca/~tjs/21-mosfetop.pdf

Q2. What is the difference between MOSFET and BJT?
http://www.differencebetween.net/technology/difference-between-bjt-and-mosfet/

Q3. What are the different layers of a MOSFET?

Q4. What is the difference between a PMOS and NMOS?

Q5. What if I connect the Drain of PMOS with a higher voltage than its Source?

Q6. What is a Pinch-off Voltage?

Q7. What are the different modes of operation for an NMOS/PMOS?

Q8. What happens when a PMOS or NMOS is in saturation region and why do we call the MOS to be saturated in this region?

Q9. What is the region of a MOS or what is the voltage on the third terminal when :

a) NMOS ; Gate 0V ; Drain 1V ; Source = ?
b) NMOS ; Gate 2V ; Drain 0V ; Source = ?

Q10. What is a floating gate?




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