Title: PN Junction, Schottky Junction, Hetero Junction,
1PN Junction, Schottky Junction, Hetero Junction,
MOS Capacitor, or Gated Diode is found at the
heart of electronic or photonic devices
2PN Hetero Junctions at the heart of Device
SiGe HBT
GaN HBT
3PN Hetero Junctions at the heart of Device
SiGe HBT
E
p Si
GaN HBT
B
E
n SiGe
n AlGaN
P GaN
B
Minority-carrier injection
4PN Hetero Junctions at the heart of Device
5PN Hetero Junctions at the heart of Device
InAsSbP
P
InAsSb
i
N
InAsSbP
6PN Junction is at the heart of Device
7Schottky Junction is at the heart of Device
8Schottky Junction is at the heart of Device
Al
n-Si
Electron is charge carrier from S to D
Majority carrier device Depletion-mode device
9MOS and Hetero Junction are at the heart of Device
IG-MODFET
IGFET
MESFET
HEMT
10MOS and Hetero Junction are at the heart of Device
Al2O3
i-AlGaN
i-GaN
channel
n-AlGaN
IG-MODFET
2D electron gas channel
i-GaN
IGFET
Metal
n-GaAs
MESFET
n-AlGaAs
2D electron gas
i-GaAs
HEMT
11MOS Capacitor is at the heart of Device
GaAs MOSFET
Si-MOSFET
12MOS Capacitor or Gated Diode is at the heart of
Device
Metal
Al, Cu, Au, poly-Si
Oxide
SiO2, Ga2O3
Semicon
Si, GaAs
GaAs MOSFET
(Depletion Mode)
MOS Gate
Metal
Oxide
p-Si
n-Si
Gated Diode MOS PN
Si-MOSFET
(Enhancement Mode)
13SUNY-Buffalo EE Courses
--- Microelectronics, Photonics and Materials
Area
Physics of PN, Schottky (MS), and Heterojunctions
522 Nanostructure Materials 524 Introduction to
Nanoelectronics 555 Photonic Devices 558 Quantum
Devices 563 Semiconductor Materials 589 Lasers
and Photonics 594 Consumer Optoelectronics 636
Defects in Semiconductors
Physics of MOS, Gated Diode, PN (incl.
Heterojunction)
588 VLSI Devices
Fabrication of PN, MS, MOS, and Integrated
Circuits
548 Microelectronic Device Fabrication 549
Analog Integrated Circuits Layout 553
Microelectronic Fabrication Laboratory
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