Ring-opened polynorbornene negative photoresist with bisazide

Details Ring-opened polynorbornene negative photoresist with bisazide Ring-opened polynorbornene negative photoresist with bisazide

1984-05-24

1986-02-18

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430194, 430313, 430325, 430330, 430927, 260349, G03C 152, G03C 171

Patent

active

045713758

ABSTRACT:
A negative photoresist is formed from a photosensitized ("PS") composition having as an essential component, a homopolymer or copolymer having a major molar amount of a ring-opened unsubstituted tetracyclic norbornene ("NB"), and/or a substituted tetracyclic NB having non-polar substituents, and a minor amount, if any, of another NB, optionally also similarly substituted with non-polar substitutents. The negative photoresist formed by exposure of a film about 1 micron thick of the PS composition to ultraviolet light in the range from about 220-450 nanometers forms, in the contact mode, a pattern of lines and spaces which are developed in a substantially aliphatic hydrocarbon solvent so as to provide a high resolution in the range from about 1 micron to about 2 microns in the pattern. Lines in the pattern have essentially vertical walls and substantially unswollen contours.

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