I. Deviny, H. Luo, Q. Xiao, Yao Yao, Chunlin Zhu, L. Ngwendson, Haibo Xiao, X. Dai, Guoyou Liu
{"title":"A novel 1700V RET-IGBT (recessed emitter trench IGBT) shows record low VCE(ON), enhanced current handling capability and short circuit robustness","authors":"I. Deviny, H. Luo, Q. Xiao, Yao Yao, Chunlin Zhu, L. Ngwendson, Haibo Xiao, X. Dai, Guoyou Liu","doi":"10.23919/ISPSD.2017.7988932","DOIUrl":null,"url":null,"abstract":"In this paper, a novel 1700V recessed emitter trench IGBT (RET-IGBT) is proposed. The RET-IGBT features an additional recessed trench between two adjacent active trenches and under the emitter contact, which reduces the drawn trench to trench separation from 6μm to 2μm. Combined with a double-dose carrier storage (CS) layers, the injection enhancement effect is enhanced. As a result, the trade-off relationship between Vce(on) and £off is improved. The fabricated RET-IGBT shows record low Vce(on) of 1.65V at 150A(110A/cm−2), no degradation in breakdown voltage and short circuit performances whilst enhancing the current handling capability in spite of increased current density.","PeriodicalId":202561,"journal":{"name":"2017 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/ISPSD.2017.7988932","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
Abstract
In this paper, a novel 1700V recessed emitter trench IGBT (RET-IGBT) is proposed. The RET-IGBT features an additional recessed trench between two adjacent active trenches and under the emitter contact, which reduces the drawn trench to trench separation from 6μm to 2μm. Combined with a double-dose carrier storage (CS) layers, the injection enhancement effect is enhanced. As a result, the trade-off relationship between Vce(on) and £off is improved. The fabricated RET-IGBT shows record low Vce(on) of 1.65V at 150A(110A/cm−2), no degradation in breakdown voltage and short circuit performances whilst enhancing the current handling capability in spite of increased current density.