The effect of high field stress on the capacitance/voltage characteristics of buried insulators formed by oxygen implantation

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

In thin-film SOI devices, where the body is fully depleted in normal device operation, the buried insulator has a pronounced effect on the transistor characteristics.1 In particular, the presence of fixed oxide charge and interface states situated at the body/insulator and the substrate/insulator interfaces will influence the electrostatics in the body region. Consequently, it is necessary to have a simple method for determining the density of fixed charge at the interfaces. Moreover, from the viewpoint of long term device stability it is necessary to assess how the magnitude of the fixed charge varies under the influence of electric field stress. Previous work has demonstrated how the high frequency capacitance/voltage (HFCV) plot can be used to determine the thickness of the body and buried oxide regions of SOI capacitors.2 This work extends the technique to allow the determination of the fixed oxide charge densities at both silicon/oxide interfaces, and outlines how the effects of high field stress can be interpreted.

Original languageEnglish
Title of host publication1990 IEEE SOS/SOI Technology Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages160-161
Number of pages2
ISBN (Electronic)0879425733, 9780879425739
DOIs
Publication statusPublished - 1990
Externally publishedYes
Event1990 IEEE SOS/SOI Technology Conference - Key West, United States
Duration: 2 Oct 19904 Oct 1990

Publication series

Name1990 IEEE SOS/SOI Technology Conference, Proceedings

Conference

Conference1990 IEEE SOS/SOI Technology Conference
Country/TerritoryUnited States
CityKey West
Period2/10/904/10/90

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