{"title":"Effects of buried p-layers on substrate-trap induced phenomena in GaAs MESFETs","authors":"K. Kunihiro, M. Nogome, Y. Ohno","doi":"10.1109/GAAS.1996.567846","DOIUrl":null,"url":null,"abstract":"We investigate the effects of buried p-layers (BP-layers) on substrate-trap induced frequency dispersion of drain conductance in GaAs MESFETs. Our experiments show that the condition of the BP-layers significantly influences their effectiveness in suppressing trap-induced low-frequency anomalies. These results can be well explained by the self-backgating model. While suppressing trap-induced phenomena, a BP-layer itself may cause current transients at higher frequencies due to parasitic capacitance increase; this is also investigated in detail.","PeriodicalId":365997,"journal":{"name":"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium. 18th Annual Technical Digest 1996","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"GaAs IC Symposium IEEE Gallium Arsenide Integrated Circuit Symposium. 18th Annual Technical Digest 1996","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.1996.567846","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
We investigate the effects of buried p-layers (BP-layers) on substrate-trap induced frequency dispersion of drain conductance in GaAs MESFETs. Our experiments show that the condition of the BP-layers significantly influences their effectiveness in suppressing trap-induced low-frequency anomalies. These results can be well explained by the self-backgating model. While suppressing trap-induced phenomena, a BP-layer itself may cause current transients at higher frequencies due to parasitic capacitance increase; this is also investigated in detail.