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Fabrication of Nitrided Mask on GaAs surface and Its Machinability for STM lithography

Published online by Cambridge University Press:  01 February 2011

Yo Yamamoto
Affiliation:
[email protected], Meijo Univ., 21stCentury COE Program, 1-501Shiogamagudhi,Tempakuku, NAGOYA, N/A, N/A, Japan
Sota MATSUOKA
Affiliation:
[email protected], Meijo Univ., Dept. of Matterrials Science and Engineering, Japan
Toshiyuki Kondo
Affiliation:
[email protected], Meijo Univ., Dept. of Matterrials Science and Engineering, Japan
Takahiro Maruyama
Affiliation:
Shigeya Naritsuka
Affiliation:
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Abstract

A nitridation mask on a GaAs surface was prepared using RF-MBE and its machinability by STM lithography was studied. A 5.2 nm thick crystal-like layer was formed at 350°C, and was modified by STM at a sample bias of ±80V with good size reliability, which was sufficiently fine for realizing dislocation-free heteroepitaxial growth of GaAs / Si. The mask was maintained up to 620°C under As flux exposure at 1.5 × 10−4 Pa.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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References

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