{"title":"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","authors":"Atsushi Shimbori, H. Wong, A. Huang","doi":"10.1109/LAEDC51812.2021.9437747","DOIUrl":null,"url":null,"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.","PeriodicalId":112590,"journal":{"name":"2021 IEEE Latin America Electron Devices Conference (LAEDC)","volume":"174 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE Latin America Electron Devices Conference (LAEDC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LAEDC51812.2021.9437747","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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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.
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