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Jpn. J. Appl. Phys. 15 (1976) pp. 1309-1316  |Next Article|  |Table of Contents|
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Electroreflectance of Si-MOS

Kiyotoshi Misawa, Akihiro Moritani and Junkichi Nakai

Department of Electronics, Faculty of Engineering, Osaka University

(Received February 16, 1976)

This paper describes the applicability of low-field electroreflectance (ER) to MOS capacitors to determine the surface properties of thermally oxidized silicon. The ER signal amplitude versus the dc gate voltage is calculated, including interface states. The flat-band voltage of the MOS structure is estimated from the ER method. This value is almost the same as that obtained from the conductance method within the experimental errors. It is shown that the relative change in reflectivity in the Si-MOS system includes not only the ER signal but also a signal possibly due to piezoreflectance ascribed to piezoelectrically active regions of the thermally grown Sio₂. layer. This explanation is based on our observations of piezoelectric phenomena in Si MOS capacitors fabricated by thermal oxidation technique.

URL: http://jjap.jsap.jp/link?JJAP/15/1309/
DOI: 10.1143/JJAP.15.1309

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See Also:

• Japanese Journal of Applied Physics 16 (1977) pp. 219-219 :

  Erratum : Electroreflectance of Si-MOS

  Kiyotoshi Misawa, Akihiro Moritani and Junkichi Nakai

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