Title :
Investigation of Dynamic Avalanche in the Termination Region for FWDs with High Reverse Recovery Capability
Author :
Kameyama, Satoru ; Sugiyama, Takahide ; Tagami, Ryuzo ; Nishiwaki, Katsuhiko
Author_Institution :
Electron. Eng. Div. III, Toyota Motor Corp., Toyota
Abstract :
This study investigated the destruction of FWDs in the termination region during reverse recovery, with the aim of enabling the fabrication of FWDs with a high current density and high reverse recovery capability. An investigation carried out by device simulation clarified that a high hole current in the termination region during reverse recovery leads to a dynamic avalanche, which may result in the destruction of the FWD. This study also demonstrated that FWDs fabricated using two concepts based on this understanding have a high current density and high reverse recovery capability without sacrificing basic characteristics.
Keywords :
avalanche diodes; current density; FWD; dynamic avalanche; freewheeling diodes; high current density; high reverse recovery capability; termination region; Circuit simulation; Current density; Fabrication; Fuels; Impact ionization; Inverters; Power engineering and energy; Power semiconductor devices; Research and development; Vehicle dynamics;
Conference_Titel :
Power Semiconductor Devices and IC's, 2008. ISPSD '08. 20th International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-1532-8
Electronic_ISBN :
978-1-4244-1533-5
DOI :
10.1109/ISPSD.2008.4538917
