{"title":"Enhanced hot-carrier degradation due to water in TEOS/O/sub 3/-oxide and water blocking effect of ECR-SiO/sub 2/","authors":"N. Shimoyama, K. Machida, K. Murase, T. Tsuchiya","doi":"10.1109/VLSIT.1992.200665","DOIUrl":null,"url":null,"abstract":"The effect of water and/or silanols in TEOS/O/sub 3/-oxide on hot-carrier degradation is discussed. Hot-carrier degradation in MOSFETs is a serious problem as the thickness of the TEOS/O/sub 3/-oxide interlayer dielectric increases. This results mainly from enhanced hot-electron trapping and also from interface-trap generation, which are related to water and/or silanols in TEOS/O/sub 3/-oxide diffusing into the gate oxide. It is pointed out that by applying an ECR (electron cyclotron resonance) SiO/sub 2/ layer under the TEOS/O/sub 3/-oxide layer, tolerance against hot-carrier damage is improved to the level of MOSFETs without the TEOS/O/sub 3/-oxide layer.<<ETX>>","PeriodicalId":404756,"journal":{"name":"1992 Symposium on VLSI Technology Digest of Technical Papers","volume":"128 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"11","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1992 Symposium on VLSI Technology Digest of Technical Papers","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSIT.1992.200665","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 11
Abstract
The effect of water and/or silanols in TEOS/O/sub 3/-oxide on hot-carrier degradation is discussed. Hot-carrier degradation in MOSFETs is a serious problem as the thickness of the TEOS/O/sub 3/-oxide interlayer dielectric increases. This results mainly from enhanced hot-electron trapping and also from interface-trap generation, which are related to water and/or silanols in TEOS/O/sub 3/-oxide diffusing into the gate oxide. It is pointed out that by applying an ECR (electron cyclotron resonance) SiO/sub 2/ layer under the TEOS/O/sub 3/-oxide layer, tolerance against hot-carrier damage is improved to the level of MOSFETs without the TEOS/O/sub 3/-oxide layer.<>