Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Forming nonplanar surface
Patent
1986-06-26
1987-03-17
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Forming nonplanar surface
430330, G03F 726
Patent
active
046507450
ABSTRACT:
Disclosed is a positive-working resist composition which demonstrates improved photospeed and rate of development. The resist composition contains a solvent and select proportions of a novolak resin, a naphthoquinone diazide sensitizer, a dye which absorbs light at a maximum wavelength of from about 330 to about 460 nm and an effective proportion of a trihydroxybenzophenone compound. Also disclosed is a method of forming a resist pattern on a substrate by employing the positive-working resist composition.
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Bowers Jr. Charles L.
O'Day Thomas P.
Philip A. Hunt Chemical Corporation
Simons William A.
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