Positive-working radiation-sensitive mixture

Details Positive-working radiation-sensitive mixture Positive-working radiation-sensitive mixture

G - Physics

03

F

96/174

G03F 7/039 (2006.01) G03F 7/004 (2006.01) G03F 7/105 (2006.01)

Patent

CA 1310534

ABSTRACT OF THE DISCLOSURE A positive-working radiation-sensitive mixture is described that contains (a) a radiation-sensitive compound which forms a strong acid under the action of actinic radiation, (b) a compound with at least one C-O-C bond cleavable by acid, (c) a binder which is insoluble in water but soluble in aqueous- alkaline solutions, and (d) a polymethine dye. The polymethine dyes used are hemioxonol dyes or symme- trical cyanine dyes. In the light-sensitive mixture, these dyes effect high sensitization and high image sharpness contrast which, in addition, is substantially irreversible.

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