Patent ID: 7521406
Filing Date: 2009-04-21
Classification: G03F

Abstract:
1. A composition for cleaning photoresist or residue from a microelectronic substrate, the cleaning composition comprising: (a) an oxidizer selected from the group consisting of an alkyl hypochlorite and a tetraalkylammonium hypochlorite, and (b) a solvent for component (a), (c) a stabilizer for available hydrogen from the oxidizer, the stabilizer being selected from the group consisting of triazoles, thiazoles, tetrazoles and imidazoles; and, optionally one or more of the following components: (d) an non ammonium-producing alkaline base, (e) an acid, (f) a metal chelating or complexing agent, (g) a cleaning performance enhancing additive, (h) a metal corrosion inhibitor, (i) a non ammonium-producing fluoride, and (j) a surfactant; with the proviso that when the oxidizer component (a) is an alkyl hypochlorite, the component (b) solvent is not an amide, sulfone, sulfolene, selenone or a saturated alcohol solvent.