Plasma processing method and plasma processing apparatus

Provided is a plasma processing method for plasma etching an etching target film formed on a sample. The method includes a protective film forming step of selectively forming a protective film on an upper portion of a pattern formed on the sample and adjusting a width of the formed protective film s...

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Bibliographische Detailangaben
Hauptverfasser: Kobayashi, Hiroyuki, Usui, Tatehito, Kuwahara, Kenichi, Matsui, Miyako
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Provided is a plasma processing method for plasma etching an etching target film formed on a sample. The method includes a protective film forming step of selectively forming a protective film on an upper portion of a pattern formed on the sample and adjusting a width of the formed protective film such that a distribution of the width of the formed protective film in a surface of the sample becomes a desired distribution, and a step of plasma etching the etching target film after the protective film forming step.