학술논문

A novel type of power picosecond semiconductor switches based on tunneling-assisted impact ionization fronts
Document Type
Conference
Source
Conference Record of the Twenty-Fifth International Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop. Power modulator symposium and high-voltage workshop Power Modulator Symposium, 2002 and 2002 High-Voltage Workshop. Conference Record of the Twenty-Fifth International. :445-448 2002
Subject
Power, Energy and Industry Applications
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Robotics and Control Systems
Power semiconductor switches
Impact ionization
Voltage
Electric breakdown
Tunneling
Semiconductor diodes
Power electronics
Synthetic aperture sonar
Poisson equations
Physics
Language
ISSN
1076-8467
Abstract
We propose a novel type of closing semiconductor switches based on a new physical mechanism-the propagation of a superfast tunneling-assisted impact ionization front. We present numerical simulations of the switching transients in the proposed devices. Our numerical results suggest that with the new mechanism, voltage pulses with a ramp up to 500 kV/ns and amplitude up to 8 kV can be formed. This sets new frontiers in pulse power electronics.