Image reversal negative working O-quinone diazide and cross-link

Details Image reversal negative working O-quinone diazide and cross-link Image reversal negative working O-quinone diazide and cross-link

1988-11-08

1990-06-05

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Forming nonplanar surface

430165, 430191, 430192, 430328, 430330, 430296, 430942, 430967, G03F 726

Patent

active

049313819

ABSTRACT:
A process for converting a normally positive working photosensitive composition to a negative working composition. One forms a composition containing an alkali soluble resin, a 1,2 quinone diazide-4-sulfonyl compound and an acid catalyzed crosslinker in a solvent mixture. After drying and imagewise exposing, the composition is baked and developed to produce a negative image.

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