Plasma processing apparatus and plasma processing method

    公开(公告)号:US11967485B2

    公开(公告)日:2024-04-23

    申请号:US17083709

    申请日:2020-10-29

    CPC classification number: H01J37/3222 H01J37/32238 H05H1/46

    Abstract: There is provided a plasma processing apparatus including: a chamber having a processing space in which a plasma processing is performed on a substrate and a synthetic space in which electromagnetic waves are synthesized; a dielectric window configured to partition the processing space and the synthetic space; an antenna unit including a plurality of antennas configured to radiate the electromagnetic waves to the synthetic space; an electromagnetic wave output part configured to output the electromagnetic waves to the antenna unit; and a controller configured to control the antenna unit to function as the phased array antenna, wherein the plurality of antennas are helical antennas.

    Microwave plasma source and plasma processing apparatus

    公开(公告)号:US10319567B2

    公开(公告)日:2019-06-11

    申请号:US15075670

    申请日:2016-03-21

    Abstract: A microwave plasma source for forming a surface wave plasma by radiating a microwave into a chamber of a plasma processing apparatus, which includes: a microwave output part for outputting the microwave; a microwave transmission part for transmitting the microwave; and a microwave radiation member for radiating the microwave into the chamber. The microwave transmission part includes a plurality of microwave introduction mechanisms circumferentially arranged in a peripheral portion of the microwave radiation member and configured to introduce the microwave into the microwave radiation member. The microwave radiation member includes a metal main body, a plurality of dielectric slow-wave members arranged in an overall annular shape in the vicinity of an arrangement surface of the main body, an annular dielectric microwave transmission member arranged in a microwave radiation surface of the main body, and a slot antenna part installed between the slow-wave members and the microwave transmission member.

    Array antenna and plasma processing apparatus

    公开(公告)号:US11476088B2

    公开(公告)日:2022-10-18

    申请号:US17144647

    申请日:2021-01-08

    Abstract: An array antenna radiates an electromagnetic wave into a chamber of a plasma processing apparatus. The array antenna includes antennas and coupling prevention elements arranged at intervals between the antennas. Each of the coupling prevention elements includes a first member connected to a ceiling wall which is a ground surface in the chamber and a second member connected to a tip end of the first member or a vicinity of the tip end of the first member.

Patent Agency Ranking