The overall objectives of this paper is to present the development of device design and process techniques for the fabrication of high current, fast switching transistors in the range of 400-500 VCEO(SUS) range. This paper discusses how the results obtained on a 23mm device have been applied to a larger diameter (33mm) transistor. An improved base contact for equalizing the base-emitter voltage at high currents has been developed along with an improved emitter-contact preform which increases the silicon area available for current conduction. The electrical performance achieved is consistent with the theoretical optimum design. This paper describes the device design, wafer-processing techniques, and various measurements including forward SOA, DC characteristics and switching times.
{"title":"A New High Power Switching Transistor","authors":"K. S. Tarneja, P. Hower","doi":"10.7567/SSDM.1982.A-4-5","DOIUrl":"https://doi.org/10.7567/SSDM.1982.A-4-5","url":null,"abstract":"The overall objectives of this paper is to present the development of device design and process techniques for the fabrication of high current, fast switching transistors in the range of 400-500 VCEO(SUS) range. This paper discusses how the results obtained on a 23mm device have been applied to a larger diameter (33mm) transistor. An improved base contact for equalizing the base-emitter voltage at high currents has been developed along with an improved emitter-contact preform which increases the silicon area available for current conduction. The electrical performance achieved is consistent with the theoretical optimum design. This paper describes the device design, wafer-processing techniques, and various measurements including forward SOA, DC characteristics and switching times.","PeriodicalId":166040,"journal":{"name":"1981 Annual Meeting Industry Applications Society","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127261277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A framework for understanding machine vision is developed by drawing a comparison between components of human vision and machine vision and also between factory uses of human and machine vision, Three major components of a machine vision system; camera, illumination, and processing; are discussed, the last by use of several examples.
{"title":"Machine Vision in Practice","authors":"Perry C. West","doi":"10.1049/tpe.1987.0207","DOIUrl":"https://doi.org/10.1049/tpe.1987.0207","url":null,"abstract":"A framework for understanding machine vision is developed by drawing a comparison between components of human vision and machine vision and also between factory uses of human and machine vision, Three major components of a machine vision system; camera, illumination, and processing; are discussed, the last by use of several examples.","PeriodicalId":166040,"journal":{"name":"1981 Annual Meeting Industry Applications Society","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1981-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123720574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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