6-kV, 5.5-kA light-triggered thyristor

Shuji Katoh, Jai Ho Choi, Takeshi Yokota, Atsuo Watanabe, Tetsuo Yamaguchi, Katsuaki Saito

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

A 6-kV, 5.5-kA light-triggered thyristor has been developed for BTB (back-to-back) converter systems. A double-diffused p emitter structure was used to improve the trade-off relationship between on-state voltage and blocking capability, and a high-injection low-lifetime structure was used to improve the trade-off relationship between on-state voltage and reverse recovery charge. The double-diffused p emitter consists of a thin p+ emitter in the main area and a thick p- emitter there and elsewhere. High injection was achieved by increasing the p+ emitter concentration and decreasing the p- emitter thickness. A locally controlled lifetime profile was used to compensate for the high injection efficiency. These structures decreased the on-state voltage by about 0.15 V.

Original languageEnglish
Pages73-76
Number of pages4
Publication statusPublished - 1997 Jan 1
Externally publishedYes
EventProceedings of the 1997 9th International Symposium on Power Semiconductor Devices and ICs, ISPSD - Weimer, Ger
Duration: 1997 May 261997 May 29

Other

OtherProceedings of the 1997 9th International Symposium on Power Semiconductor Devices and ICs, ISPSD
CityWeimer, Ger
Period97/5/2697/5/29

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Katoh, S., Choi, J. H., Yokota, T., Watanabe, A., Yamaguchi, T., & Saito, K. (1997). 6-kV, 5.5-kA light-triggered thyristor. 73-76. Paper presented at Proceedings of the 1997 9th International Symposium on Power Semiconductor Devices and ICs, ISPSD, Weimer, Ger, .