Polymer for photoresist and resin compositions therefor

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making

Reexamination Certificate

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C549S266000, C549S267000, C549S270000, C526S270000, C526S266000, C526S271000, C430S326000, C430S908000, C430S311000, C430S323000

Reexamination Certificate

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07105268

ABSTRACT:
A polymeric compound for photoresist of the invention includes at least one monomer unit represented by following Formula (I):wherein R1, R2, R3, R4and R5are the same or different and are each a hydrogen atom or a methyl group; m, p and q each denote an integer of from 0 to 2; and n denotes 0 or 1, where the hydroxyl group and carbonyloxy group extending from a principle chain in the formula are independently combined with either of two carbon atoms on the far-left portion of the rings.By using the polymeric compound for photoresist as a base of a photoresist, the resulting photoresist exhibits well-rounded adhesion to substrates and resistance to etching.

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