Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Electrical Characterization of Nano SOI Wafer by Pseudo MOSFET

Pseudo MOSFET을 이용한 Nano SOI 웨이퍼의 전기적 특성분석

  • Published : 2005.12.01
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Abstract

The Pseudo MOSFET measurements technique has been used for the electrical characterization of the nano SOI wafer. Silicon islands for the Pseudo MOSFET measurements were fabricated by selective etching of surface silicon film with dry or wet etching to examine the effects of the etching process on the device properties. The characteristics of the Pseudo MOSFET were not changed greatly in the case of thick SOI film which was 205 nm. However the characteristics of the device were dependent on etching process in the case of less than 100 nm thick SOI film. The sub 100 nm SOI was obtained by thinning the silicon film of standard thick SOI wafer. The thickness of SOI film was varied from 88 nm to 44 nm by chemical etching. The etching process effects on the properties of pseudo MOSFET characteristics, such as mobility, turn-on voltage, and drain current transient. The etching Process dependency is greater in the thinner SOI wafer.

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References

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