{"title":"Detection and Characterization of Single Near-Interface Oxide Traps with the Charge Pumping Method","authors":"T. Tsuchiya, M. Hori, Y. Ono","doi":"10.1109/IPFA.2018.8452495","DOIUrl":null,"url":null,"abstract":"We carried out detection and characterization of single Si/SiO2near-interface oxide-traps (NIOTs) using the systematic measurements procedure by the high-resolution charge pumping (CP) method we developed, and we found a single NIOT where CP current depends upon both fall and rise times of the CP gate pulse. This demonstrates that individual Si/SiO2NIOTs have two energy levels, one in the upper part, the other in the lower part of the silicon bandgap. The results may suggest that the NIOTs also have an amphoteric nature, i.e., have both donor-like one-electron, and acceptor-like two-electrons states, similar to the Si/SiO2interface traps.","PeriodicalId":382811,"journal":{"name":"2018 IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2018 IEEE International Symposium on the Physical and Failure Analysis of Integrated Circuits (IPFA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IPFA.2018.8452495","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We carried out detection and characterization of single Si/SiO2near-interface oxide-traps (NIOTs) using the systematic measurements procedure by the high-resolution charge pumping (CP) method we developed, and we found a single NIOT where CP current depends upon both fall and rise times of the CP gate pulse. This demonstrates that individual Si/SiO2NIOTs have two energy levels, one in the upper part, the other in the lower part of the silicon bandgap. The results may suggest that the NIOTs also have an amphoteric nature, i.e., have both donor-like one-electron, and acceptor-like two-electrons states, similar to the Si/SiO2interface traps.
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