Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1997-01-23
1998-08-04
Young, Christopher G.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430330, 15665911, 427534, 427541, G03C 500
Patent
active
057891419
ABSTRACT:
A method of manufacturing a semiconductor device comprising the steps of heating a substrate at a temperature not less than 200.degree. C., for example 800.degree. C., for a sufficient period; cooling the substrate down to room temperature; coating a chemically amplified resist film on the surface of the substrate; exposing a patterning region of the resist film; developing the resist film to form a resist pattern; and etching the surface of the substrate by a certain thickness, employing the resist pattern as a mask. In forming fine resist pattern using chemically amplified resist, resolution can be improved.
REFERENCES:
patent: 4645683 (1987-02-01), Gourrier et al.
patent: 4871580 (1989-10-01), Schram et al.
Fujitsu Limited
Young Christopher G.
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