Invention Grant
US09293565B2 Etchant composition and method of manufacturing metal wiring and thin film transistor substrate using the etchant 有权
使用蚀刻剂制造金属布线和薄膜晶体管基板的蚀刻剂组成和方法

Etchant composition and method of manufacturing metal wiring and thin film transistor substrate using the etchant
Abstract:
An etchant composition includes about 0.5 weight % to about 20 weight % of persulfate, about 0.01 weight % to about 2 weight % of a fluoride compound, about 1 weight % to about 10 weight % of an inorganic acid, about 0.5 weight % to about 5 weight % of a cyclic amine compound, about 0.1 weight % to about 10.0 weight % of a compound having an amino group and a sulfonic acid, about 0.1 weight % to about 15.0 weight % of an organic acid or a salt thereof, and water to 100 weight % of the etchant composition.
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