{"title":"6.5 kV超软快速恢复二极管(U-SFD)，具有高反向恢复能力","authors":"M. Mori, H. Kobayashi, Y. Yasuda","doi":"10.1109/ISPSD.2000.856785","DOIUrl":null,"url":null,"abstract":"This paper presents a 65 kV ultra soft and fast recovery diode (U-SFD) for a high power IGBT module. The U-SFD has shallow p type Schottky junctions and deep pn junctions. A high blocking voltage of 6.8 kV even at -40/spl deg/C and a low forward voltage drop (V/sub F/) Of 4.6 V at 125/spl deg/C, which show a positive thermal coefficient, are obtained. The Schottky junctions are effective even for 6.5 kV diodes in achieving better trade-off relationships between V/sub F/ and the reverse recovery loss, V/sub F/ and the reverse recovery peak current, and V/sub F/ and the reverse recovery current change compared to a conventional pn diode. Moreover, the U-SFD with a HiRC (high reverse recovery capability) structure demonstrates good switching durability at a high dc-link voltage of 4.4 kV and at 125/spl deg/C.","PeriodicalId":260241,"journal":{"name":"12th International Symposium on Power Semiconductor Devices & ICs. Proceedings (Cat. No.00CH37094)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":"{\"title\":\"6.5 kV ultra soft & fast recovery diode (U-SFD) with high reverse recovery capability\",\"authors\":\"M. Mori, H. Kobayashi, Y. Yasuda\",\"doi\":\"10.1109/ISPSD.2000.856785\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a 65 kV ultra soft and fast recovery diode (U-SFD) for a high power IGBT module. The U-SFD has shallow p type Schottky junctions and deep pn junctions. A high blocking voltage of 6.8 kV even at -40/spl deg/C and a low forward voltage drop (V/sub F/) Of 4.6 V at 125/spl deg/C, which show a positive thermal coefficient, are obtained. The Schottky junctions are effective even for 6.5 kV diodes in achieving better trade-off relationships between V/sub F/ and the reverse recovery loss, V/sub F/ and the reverse recovery peak current, and V/sub F/ and the reverse recovery current change compared to a conventional pn diode. Moreover, the U-SFD with a HiRC (high reverse recovery capability) structure demonstrates good switching durability at a high dc-link voltage of 4.4 kV and at 125/spl deg/C.\",\"PeriodicalId\":260241,\"journal\":{\"name\":\"12th International Symposium on Power Semiconductor Devices & ICs. Proceedings (Cat. No.00CH37094)\",\"volume\":\"12 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-05-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"12th International Symposium on Power Semiconductor Devices & ICs. Proceedings (Cat. No.00CH37094)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISPSD.2000.856785\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"12th International Symposium on Power Semiconductor Devices & ICs. Proceedings (Cat. No.00CH37094)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISPSD.2000.856785","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
6.5 kV ultra soft & fast recovery diode (U-SFD) with high reverse recovery capability
This paper presents a 65 kV ultra soft and fast recovery diode (U-SFD) for a high power IGBT module. The U-SFD has shallow p type Schottky junctions and deep pn junctions. A high blocking voltage of 6.8 kV even at -40/spl deg/C and a low forward voltage drop (V/sub F/) Of 4.6 V at 125/spl deg/C, which show a positive thermal coefficient, are obtained. The Schottky junctions are effective even for 6.5 kV diodes in achieving better trade-off relationships between V/sub F/ and the reverse recovery loss, V/sub F/ and the reverse recovery peak current, and V/sub F/ and the reverse recovery current change compared to a conventional pn diode. Moreover, the U-SFD with a HiRC (high reverse recovery capability) structure demonstrates good switching durability at a high dc-link voltage of 4.4 kV and at 125/spl deg/C.
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