POLYCYCLIC COMPOUND HAVING LACTONE STRUCTURE

PROBLEM TO BE SOLVED: To provide a monomer which gives a polymer suitable as a base resin of a resist material used in photolithography using excimer laser light as a light source. SOLUTION: This monomer is a polycyclic compound represented by formula (1) or (2) (wherein R and R are each H or an alk...

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Hauptverfasser: NAITO TAKETOSHI, OKAGO YUJI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a monomer which gives a polymer suitable as a base resin of a resist material used in photolithography using excimer laser light as a light source. SOLUTION: This monomer is a polycyclic compound represented by formula (1) or (2) (wherein R and R are each H or an alkyl or alkoxycarbonyl group; R and R are each H or an alkyl group; and X is a methylene or ethylene group, O or S).