Chapter 26

44

MOSFETs

•Construction and symbols

S

P substrate

n-channel depletion MOSFET

ss

D

G

S

ss (Substrate)

D

S

Channel

SiO2

n

n

n

G

Metal

D

G

n-channel enhancement MOSFET

n

P substrate

D

S

ss

No

Channel

SiO2

n

G

ss

S