Patent ID: 6692884
Filing Date: 2004-02-17
Classification: G03F,Y10S

Abstract:
A positive photoresist composition comprising:(A) a compound capable of generating an acid upon irradiation with one of an actinic ray and a radiation, wherein the compound (A) includes: (A1) a sulfonate compound of a sulfonium; and (A2) at least one compound of a sulfonate compound of an N-hydroxyimide and a disulfonyldiazomethane compound; and (B) a resin capable of decomposing by the action of an acid to increase the solubility in an alkali developer, wherein the resin (B) contains a repeating unit having a group represented by at least one of formulae (I-1), (I-2), (I-3) and (I-4): â€ƒwherein R1, R2, R3, R4 and R5, which may be the same or different, each represents a hydrogen atom, an alkyl group, a cycloalkyl group, or an alkenyl group; and two of R1, R2, R3, R4 and R5 may be bonded to form a ring.