CMOS VLSI DESIGN EXAM 1 QUESTIONS AND ANSWERS

CMOS VLSI DESIGN EXAM 1 QUESTIONS AND
ANSWERS


n-type - ANSWER A class of extrinsic semiconductors containing dopant
atoms with more than four valence electrons, allowing for extra electrons to
provide more conductivity

p-type - ANSWER A class of extrinsic semiconductors containing dopant
atoms with fewer than four valence electrons., has a "hole" that decreases
conductivity. acts as a positive carrier

diode - ANSWER junction between p and n type silicone

PMOS, NMOS, CMOS stands for - ANSWER Positive-channel Metal Oxide
Semiconductor, negative-channel, and complementary

MOSFET stands for - ANSWER Metal Oxide Semiconductor Field Effect
Transistor

nmos passes strong - ANSWER strong 0s and degrades 1

pmos passes strong - ANSWER strong 1s and degrades 0

transmission gate - ANSWER pmos and nmos connected in parallel that will
turn on when 1 is input and 0 when 0 is input and it passes both well

double rail logic - ANSWER when both the control inout and complement are
req by transmission gate

fully restored logic gate - ANSWER when nmos only needs to pass 0 and
pmos only needs to pass 1 in complementary static cmos design so both strong 0
and 1 are transmitted by it