Method and apparatus for processing a substrate

A method for processing a substrate includes a step of providing a substrate and a first step. In the step of providing a substrate, a substrate having a first film and a second film formed on the first film and having a pattern formed thereon is provided. In the first step, a protective film is for...

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Bibliographic Details
Main Authors Hisamatsu, Toru, Iijima, Yuki, Kumagai, Kae
Format Patent
LanguageEnglish
Published 14.12.2021
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Summary:A method for processing a substrate includes a step of providing a substrate and a first step. In the step of providing a substrate, a substrate having a first film and a second film formed on the first film and having a pattern formed thereon is provided. In the first step, a protective film is formed on a side wall of the first film by a product generated by sputtering of the second film while a first processing gas is turned into plasma and the first film is etched simultaneously with the sputtering of the second film.
Bibliography:Application Number: US202016910093