Analysis of Forward Surge Performance of SiC Schottky Diodes

Autor: Richard L. Woodin, Rahul Radhakrishnan, Nathanael Cueva, Tony Witt
Rok vydání: 2018
Předmět:
Zdroj: Materials Science Forum. 924:621-624
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.924.621
Popis: Silicon Carbide JBS diodes are capable, in forward bias, of carrying surge current of magnitude significantly higher than their rated current, for short periods. In this work, we examine the mechanisms of device failure due to excess surge current by analyzing variation of failure current with device current and voltage ratings, as well as duration of current surge. Physical failure analysis is carried out to correlate to electrical failure signature. We also quantify the impact, on surge current capability, of the resistance of the anode ohmic contact to the p-shielding region.
Databáze: OpenAIRE