RUTHENIUM-ETCHING SOLUTION, METHOD FOR MANUFACTURING RUTHENIUM-ETCHING SOLUTION, METHOD FOR PROCESSING OBJECT TO BE PROCESSED, AND METHOD FOR MANUFACTURING RUTHENIUM-CONTAINING WIRING

A ruthenium-etching solution for carrying out an etching process on ruthenium. The etching solution includes orthoperiodic acid and ammonia, in which a pH is 8 or higher and 10 or lower. A method for manufacturing the ruthenium-etching solution, a method for processing an object to be processed incl...

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Hauptverfasser: OHHASHI, Takuya, WADA, Yukihisa
Format: Patent
Sprache:eng
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Zusammenfassung:A ruthenium-etching solution for carrying out an etching process on ruthenium. The etching solution includes orthoperiodic acid and ammonia, in which a pH is 8 or higher and 10 or lower. A method for manufacturing the ruthenium-etching solution, a method for processing an object to be processed including carrying out an etching process on an object to be processed including ruthenium using the ruthenium-etching solution, and a method for manufacturing a ruthenium-containing wiring.