Patent ID: 7951523
Filing Date: 2011-05-31
Classification: G03F,Y10S

Abstract:
1. A material for forming a protective film as an upper layer on a resist film, comprising at least an alkaline soluble polymer component, a crosslinking agent, a solvent, and an acidic component, wherein the acidic component is at least one selected from the group consisting of general formulae (4), (6) and (7): wherein n represents an integer of 1 to 5; wherein o represents an integer of 2 to 3; and wherein p represents an integer of 2 to 3; and Rf represents an alkyl group in which a portion or all of hydrogen atoms are substituted with a fluorine atom, and may be substituted with a group selected from a hydroxyl group, an alkoxy group, a carboxyl group or an amino group.