Fluorinated cyclic structure-bearing silicon compounds 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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C430S325000, C430S326000, C430S905000, C430S907000, C549S214000, C549S356000, C549S357000, C549S369000, C549S416000, C549S417000, C549S423000, C549S427000, C549S428000, C549S429000, C549S475000, C549S476000, C549S497000, C549S502000, C549S504000

Reexamination Certificate

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07638256

ABSTRACT:
Silicon compounds having fluorinated hemiacetal structure are provided. Silicone resins having the same structure have an appropriate acidity to enable formation of a finer pattern by minimizing the pattern collapse by swelling, exhibit improved resistance to the etching used in the pattern transfer to an organic film, and are thus suited for use in resist compositions for the bilayer process.

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