Patent ID: 6783912
Filing Date: 2004-08-31
Classification: G03F,Y10S

Abstract:
A photoresist composition comprising:1) a resin that is at least substantially free of aromatic groups; and 2) a photoacid generator compound in an amount sufficient to permit development of an exposed coating layer of the composition, the photoacid generator compound being of the following Formula I: wherein R and R1 are different and are optionally substituted alkyl; optionally substituted alkoxy; optionally substituted alkylthio; optionally substituted carbocyclic aryl; optionally substituted aralkyl; optionally substituted heteroaryl; optionally substituted heteroalicyclic; phenyl having one more phenyl-ring electron-withdrawing substituents; an optionally substituted alicyclic group; optionally substituted naphthyl; optionally substituted thienyl; optionally substituted coumarinyl; optionally substituted quinolinyl; optionally substituted furyl; optionally substituted thiazolyl; optionally substituted oxazolyl; optionally substituted benzofuranyl; optionally substituted benzothiazolyl; or optionally substituted tetrahydrofuranyl; wherein at least one of R and R1 is phenyl having one more phenyl-ring electron-withdrawing substituents; an optionally substituted alicyclic group; optionally substituted naphthyl; optionally substituted thienyl; optionally substituted coumarinyl; optionally substituted quinolinyl; optionally substituted furyl; optionally substituted thiazolyl; optionally substituted oxazolyl; optionally substituted benzofuranyl; optionally substituted benzothiazolyl; or optionally substituted tetrahydrofuranyl.