Patent ID: 6770417
Filing Date: 2004-08-03
Classification: G03F,Y10S

Abstract:
A negative resist composition comprising at least a constituent component which has a vinyl ether structure protected with an acetal in a molecule thereof, the acetal-protected vinyl ether structure having a partial structure represented by any one of the following formulas (I) to (III): wherein X represents a hydrogen atom or an arbitrary substituent, and X itself may have an additional vinyl ether structure protected with an acetal and is capable of bonding the vinyl ether structure at an arbitrary position other than 1- and 2-positions,Y and R each represents an arbitrary hydrocarbon group and may be straight-chain or branched, Z represents a hydrogen atom or an arbitrary substituent, and Z itself may have an additional vinyl ether structure protected with an acetal, and n represents an integer of 1 to 6.