Polymers, resist compositions and patterning process

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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C430S320000, C430S322000, C430S325000, C430S326000, C430S327000, C430S905000, C430S910000, C430S914000, C526S243000, C526S281000, C526S282000, C526S286000, C526S287000

Reexamination Certificate

active

07078147

ABSTRACT:
A resist composition comprising a base polymer having sulfone or sulfonate units introduced therein is sensitive to high-energy radiation below 300 nm, is endowed with excellent adherence to substrates while maintaining transparency, and is suited for lithographic microprocessing.

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