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Electron-beam deposited SiO2 investigated by scanning capacitance microscopy

Authors :
W. Brezna
Emmerich Bertagnolli
M. Fischer
Jürgen Smoliner
Heinz D. Wanzenboeck
Source :
Applied Physics Letters. 88:122116
Publication Year :
2006
Publisher :
AIP Publishing, 2006.

Abstract

The quality of electron-beam deposited, few nanometers thick, SiO2 layers on silicon substrates was investigated by scanning capacitance microscopy and spectroscopy. Rapid thermal annealing had to be applied prior to the capacitance versus voltage [C(V)] measurements to obtain typical metal-oxide-semiconductor behavior, and it was found that the total oxide charge is negative on the deposited oxide layers. Higher annealing temperatures resulted in an overall reduction of the number of oxide charges. This opens up the possibility to use electron-beam deposited SiO2 as a dielectric material in metal-oxide-semiconductor prototyping applications.

Details

ISSN :
10773118 and 00036951
Volume :
88
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........2d915255b2eb1ac973c3ea29dba9a186