Patent ID: 9217929
Filing Date: 2015-12-22
Classification: G03F,H01L

Abstract:
1. A method for removing photoresist or etching residue or both from the substrate wherein said method comprises contacting a substrate with a composition consisting essentially of: a) at least about 50% by weight of organic solvent consisting essentially of glycol ether and at least one of C b) at least about 0.5% by weight of one or more quaternary ammonium hydroxides wherein said one or more quaternary ammonium hydroxides is selected from tetramethylammonium hydroxide, tetraethylammonium hydroxide, tetrapropylammonium hydroxide, tetrabutylammonium hydroxide, trimethylethylammonium hydroxide, (2-hydroxyethyl)trimethylammonium hydroxide, (2-hydroxyethyl)triethylammonium hydroxide, (2-hydroxyethyl)tripropylammonium hydroxide, and (1-hydroxypropyl)trimethylammonium hydroxide; c) 0.2 to 19% by weight of corrosion inhibitor selected from the group consisting of gallic acid, lactic acid, and citric acid and salts thereof, catechol, benzotriazole (BZT), resorcinol, phenols, triazoles, hydroxylamines or acid salts thereof, or mixtures thereof; and d) optionally water.