Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1989-10-26
1991-11-26
Hamilton, Cynthia
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430317, 430323, 430326, 156643, G03F 736
Patent
active
050681699
ABSTRACT:
Disclosed is a process for the production of a semiconductor device, which comprises forming a film of a resist composed of a substance generating an acid catalyst by being irradiated with radiation and a polymer having an Si-containing group that can be eliminated by the acid catalyst, irradiating the resist film with radiations and patterning the irradiated resist film by oxygen reactive ion etching, ECR etching or reactive ion beam etching. This process is advantageously used for preparing a semiconductor device by the two-layer resist method.
REFERENCES:
patent: 4481049 (1984-11-01), Reichmanis et al.
patent: 4551417 (1985-11-01), Suzuki et al.
patent: 4665006 (1987-06-01), Sachdev et al.
patent: 4770977 (1988-09-01), Buiguez et al.
F. Buiguez et al., "A New Positive Optical Resist for BiLayer Resist Systems", Microcircuits Engineering Conference in Berlin, 1984, 12 pages.
Mihara Yukari
Nakamura Yuko
Takechi Satoshi
Fujitsu Limited
Hamilton Cynthia
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