Comprehensive Comparison of Fabricated 1.6-kV Punch-Through Design Ni/n-SiC Schottky Barrier Diode with Ar+Implant Edge Termination and Heterojunction p-NiO/n-SiC Diode

Publication Date

4-19-2021

Document Type

Conference Proceeding

Publication Title

2021 IEEE Latin America Electron Devices Conference (LAEDC)

DOI

10.1109/LAEDC51812.2021.9437747

Abstract

A comprehensive comparison of a punch-Through Ni/SiC Schottky diode with Ar+ implant edge termination and heterojunction NiO/SiC diode were conducted through fabrication, electrical evaluation, TCAD simulation analysis and reverse recovery evaluation. Both fabricated diodes exhibit high breakdown voltage of 1595V, utilizing a punch-Through design. The heterojunction NiO/SiC diode has shown ×0.5 less reverse leakage current than the Ni/SiC Schottky diode due to higher barrier height. The Ni/SiC Schottky diode, on the other hand, has shown 90% less reverse recovery time, indicating a small degree of minority carrier injection for the heterojunction NiO/SiC diode.

Keywords

Ar ion implant edge termination +, heterojunction, Nio, Schottky diode, Sic, Tcad

Department

Electrical Engineering

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