Patent ID: 6762007
Filing Date: 2004-07-13
Classification: G03F,Y10S

Abstract:
A chemical amplification type positive resist composition comprising(A) resin having a phenol skeleton wherein the phenol skeleton has protective group which can be dissociated by the action of an acid, the phenol skeleton itself is insoluble or poorly soluble in an alkali aqueous solution and the phenol skeleton becomes soluble in an alkali aqueous solution after dissociation of the protective group (hereinafter referred to â€œComponent (A)â€ ), (B) resin obtained by protecting a part of hydroxyl group in poly(p-hydroxystyrene) with pivaloyl group (hereinafter referred to â€œComponent (B)â€ ) and (C) an acid generator (hereinafter referred to â€œComponent (C)â€ ).