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Optical disk mastering using an electron beam recorder

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2 Author(s)
Lin, Hsi-Hsiang ; Nanomachinery Dept., Ind. Technol. Res. Inst., Taiwan ; Lo, Shih-Che

For the next-generation optical disk, electron beam mastering has been considered as a technique with high potential. Parameters of exposure and development processes, such as focus distance, beam current, linear velocity, and development time, have been discussed in our previous paper (2001). However, for electron beam mastering, electron backscattering is also an important problem. In this paper, we discussed how the proximity effect caused by backscattered electrons influences the exposure linewidth (FWHM) and the thickness of residual resist as track pitch decreases. We attacked this problem by raising beam voltage and changing the material of a substrate. According to experimental results, depositing a SiO2 film or a Si3N4 film on a substrate can partially solve this problem.

Published in:

Nanotechnology, 2002. IEEE-NANO 2002. Proceedings of the 2002 2nd IEEE Conference on

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