Cross section of a PMOS transistor?

What does the above code synthesize to?

Why do we need both PMOS and NMOS transistors to implement a
pass gate?

Insights of a pass gate. Explain the working?

Implement F= not (AB+CD) using CMOS gates?

Insights of a 2 input NAND gate. Explain the working?

Insights of a 2 input NOR gate. Explain the working?

Insights of an inverter. Explain the working?

If not into production, how far did you follow the design 
and why did not you see it into production? 

What was your role in the silicon evaluation or product 
ramp? What tools did you use? 

What products have you designed which have entered high 
volume production?

What transistor level design tools are you proficient with? 
What types of designs were they used on? 

What types of high speed CMOS circuits have you designed?

Process technology? What package was used and how did you 
model the package/system? What parasitic effects were 
considered? 

What types of I/O have you designed? What were their size? 
Speed? Configuration? Voltage requirements?