FILTER CIRCUIT

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United States of America Patent

APP PUB NO 20240304421A1
SERIAL NO

18668416

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Abstract

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There is provided a filter circuit provided in a plasma processing device for processing a substrate using plasma generated using power of a first frequency of 4 MHz or more and power of a second frequency of 100 Hz or more and less than 4 MHz. The filter circuit comprises: a first filter provided in a wiring between a conductive member provided in the plasma processing device and a power supply configured to supply power of a third frequency of less than 100 Hz or control power which is direct-current (DC) power, to the conductive member; and a second filter provided in a wiring between the first filter and the power supply.

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Patent Owner(s)

Patent OwnerAddress
TOKYO ELECTRON LIMITED3-1 AKASAKA 5-CHOME MINATO-KU TOKYO 107-6325

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
YAMAZAWA, Yohei Miyagi, JP 101 1955

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