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US09150969B2 Method of etching metal layer 有权
蚀刻金属层的方法

Method of etching metal layer
摘要:
In a method of etching a metal layer of an object to be processed, the metal layer is etched by ion sputtering etching while forming a protective film containing carbon on a surface of a mask of the object. The object is exposed to an oxygen plasma after etching the metal layer. The object is exposed to hexafluoroacetylacetone after exposing the object to the oxygen plasma.
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