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IEICE TRANSACTIONS on Electronics

Low-Temperature Reactive Ion Etching for Multi-Layer Resist

Tetsuo SATO, Tomoaki ISHIDA, Masahiro YONEDA, Kazuo NAKAMOTO

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Summary :

The effects of low temperature etching for sub-half micron multi-layer resist are investigated. The low temperature etching with pure O2 gas provides higher anisotropic profiles than with an additional gas such as Cl2, N2. This is caused by the difference in the formative process of the side wall protection. With pure O2 gas at 80, highly anisotropic profiles for 0.35 µm patterns can be performed while the maximum tolerable width loss is below 0.03 µm.

Publication
IEICE TRANSACTIONS on Electronics Vol.E76-C No.4 pp.607-612
Publication Date
1993/04/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on Sub-Half Micron Si Device and Process Technologies)
Category
Process Technology

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