Patent ID: 8038749
Filing Date: 2011-10-18
Classification: C09G,G03F,H01L

Abstract:
1. A composition for removing photoresist layer comprising abrasive particles, water, an oxidant, an organic solvent and an inorganic dissolution aid, wherein said inorganic dissolution aid is KNO 3 , K 3 PO 4 , K 2 SO 4 , NH 4 NO 3 , (NH 4 ) 2 SO 4 , CsNO 3 , KCl, CsCl, or NH 4 Cl; wherein the organic solvent is organic amine, organic alcohol, organic alcohol amine, ether and/or organic ketone; and wherein the average particle size of the abrasive particles is 0.005-1.0 μm.