Inductively-coupled plasma processing apparatus
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United States of America
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Nov 26, 2024
Grant Date -
Jul 16, 2020
app pub date -
Jan 8, 2020
filing date -
Jan 8, 2020
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Abstract
An inductively-coupled plasma processing apparatus for performing an inductively-coupled plasma processing on a rectangular substrate, includes: a processing container; a mounting table for mounting the substrate thereon; a rectangular metal window provided to be electrically insulated from the processing container while facing the mounting table; and an antenna unit for generating an inductively-coupled plasma inside the processing container. The metal window is divided into divided regions electrically insulated from each other by a first division extending in a radial direction toward each corner portion of the metal window. The antenna unit includes a first high-frequency antenna in which antenna segments having planar portions facing an upper surface of the metal window are arranged. Each antenna segment is configured by spirally winding an antenna wire in a vertical direction orthogonal to the upper surface of the rectangular metal window so that a winding axis is parallel to the upper surface.
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