Positive photoresist composition and method of forming...

Radiation imagery chemistry: process – composition – or product th – Diazo reproduction – process – composition – or product – Composition or product which contains radiation sensitive...

Reexamination Certificate

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C430S191000, C430S192000, C430S193000, C430S326000

Reexamination Certificate

active

07132213

ABSTRACT:
A positive photoresist composition comprising an alkali-soluble novolak resin (A) containing a structural unit (a1) represented by a general formula (I) shown below, and a structural unit (a2) represented by a general formula (II) shown below, and a photosensitizer (B)

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Organic Compounds Structural Index, pp. 362-401, Dec. 20, 1977; Maruzen (Ltd.).

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