Breakdown voltage, Contact Resistance

소개

Breakdown voltage, Contact Resistance에 관한 ppt 자료 입니다.

목차

Breakdown voltage - Introduction
Breakdown voltage – Physics
Breakdown voltage – Measure technique
Breakdown voltage – Characteristic
Breakdown voltage – Solution
Breakdown Voltage(1)
Breakdown Voltage(2)
Contact Resistance
I-V Characteristics
Electric field vs Mobility

본문내용

Breakdown voltage - Introduction
Classification of Breakdown
On-state Breakdown (ID > 1mA)
Off-state Breakdown (ID = 1mA)
Definition of Breakdown Voltage
: A characteristic of an insulator that defines the maximum voltage difference that can be applied across the material before the insulator collapses and conducts.
: | IG | = 1mA
Breakdown voltage Physics
Breakdown Physics
Tunneling and Thermionic Field Emission
Impact ionization
Breakdown voltage Measure technique
For the measurement of On-state BV
: Gate current Extraction Technique
For the measurement of Off-state BV
: Drain current Injection Technique
Breakdown voltage Characteristic
Temperature vs BV
Off-state
On-state
Sidegate current
Breakdown voltage Solution
① The removal of dopants from barrier enhancement layer.
-> Increase the effective gate-Schottky barrier width
② Field plate, Double Field plate
Gate edge의 electric field 완화
Electric field를 보다 균일하게 분산
Drain edge의 electric field 감소
Breakdown Voltage(1)
Semiconductor
EG
(eV)
Si
1.12
GaAs
1.42D
InP
1.35D
GaN
3.34D

참고자료

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