A novel 4H-SiC pinched barrier rectifier

Na Ren, Kang L. Wang, Zheng Zuo, Ruigang Li, Kuang Sheng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, design, fabrication and experimental analysis of a novel 4H-SiC pinched barrier rectifier (PBR) are presented. The operation mechanism of the pinched barrier is analyzed by numerical simulation and energy band diagrams. PN junction depth (Xj) and spacing (S) parameters in the diode structure are carefully designed to achieve a prototype optimal structure, and both forward and reverse characteristics are compared with those of JBS diodes by experimental results. It is demonstrated that, only by simply adjusting the PN junction depth and spacing parameters, the pinched barrier diode can obtain relatively optimal performance close to that of JBS diodes. The addition of channel doping concentration (Nch) consideration for the structure design can achieve further improvements and superior performances than JBS diodes. In comparison with the optimum JBS diode design (S=1.2pm), for an on-set voltage control of 0.8V, PBR diode with optimum design sets of S and Nch can achieve a wider trade-off window (S≤0.8pm) between the device forward and reverse performances. Furthermore, PBR diode can achieve superior performance with lower forward voltage drop (1.3V) than JBS diode (1.6V) for the same reverse blocking capability (∼1600V). The performance limit of PBR diode is also explored in this paper. For a minimum limit on-set voltage control of 0.6 V, a lowest voltage drop of 1.1V as well as a wide design window can be achieved.

Original languageEnglish
Title of host publication2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1950-1957
Number of pages8
ISBN (Electronic)9781509053667
DOIs
Publication statusPublished - 2017 May 17
Event32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States
Duration: 2017 Mar 262017 Mar 30

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Country/TerritoryUnited States
CityTampa
Period17-03-2617-03-30

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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