Tertiary alcohol derivative, polymer compound and...

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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Details

C430S910000, C526S266000, C526S270000, C549S356000, C549S429000, C560S205000, C560S220000

Reexamination Certificate

active

07867690

ABSTRACT:
(1) A polymer compound for photoresist compositions which is high in storage stability and small swelling at the development and (2) a compound which is a raw material for such a polymer compound are provided; and (3) a photoresist composition with improved LWR containing the subject polymer compound are further provided. In detail, [1] a tertiary alcohol derivative represented by the following general formula (1) is provided.(In the formula, wherein R1represents a linear alkyl group having from 1 to 6 carbon atoms, a branched alkyl group having from 3 to 6 carbon atoms or a cyclic alkyl group having from 3 to 6 carbon atoms; R2represents a hydrogen atom or a methyl group; W represents a linear alkylene group having from 1 to 10 carbon atoms, a branched alkylene group having from 3 to 10 carbon atoms or a cyclic alkylene group having from 3 to 10 carbon atoms; n represents 0 or 1; and p represents 1 or 2.)

REFERENCES:
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Wipf P et al., “Synthesis and Reactivity of Dioxycarbenium Ions from Epoxy Esters and Cationic Zirconium Complexes”, Journal of Organic Chemistry, vol. 58, pp. 5880-5882, (1993).

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