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    • 41. 发明公开
    • RADIO-FREQUENCY ANTENNA
    • EP4163951A1
    • 2023-04-12
    • EP22210192.5
    • 2021-04-14
    • EMD CorporationTomoegawa Co., Ltd.
    • Ebe, AkinoriTsuda, HajimeMoriuchi, Hideki
    • H01J37/32H01Q1/00
    • [OBJECT] To provide a radio-frequency antenna through which a high amount of current can be efficiently passed even at a radio-frequency level for plasma generation, as well as a plasma processing device utilizing the radio-frequency antenna.
      [MEANS FOR SOLVING PROBLEM] A radio-frequency antenna (10) according to the present invention includes a metal fiber sheet. A plasma processing device according to the present invention includes: a vacuum container (21) including a wall (211) having an opening (213); a radio-frequency antenna (10) including a metal fiber sheet and located at the opening (213); and a dielectric protection plate (12) located closer to the interior of the vacuum container (21) than the radio-frequency antenna (10) and configured to close the opening (213) in a gas-tight manner. The radio-frequency antenna (10) including a metal fiber sheet has a larger surface area and an accordingly lower impedance to a radio-frequency current than a radio-frequency antenna including a metal plate having the same outer shape. Therefore, it allows a radio-frequency current commonly used for plasma generation (e.g., at a frequency of 13.56 MHz) to be more efficiently passed through in large amounts.
    • 50. 发明公开
    • ANTENNA FOR PLASMA PROCESSING APPARATUS, AND PLASMA PROCESSING APPARATUS USING ANTENNA
    • 天线FÜREINE PLASMABEHANDLUNGSVORRICHTUNG UND PLASMABEHANDLUNGSVORRICHTUNG MIT DER ANTENNE
    • EP2753154A1
    • 2014-07-09
    • EP11871785.9
    • 2011-08-30
    • EMD Corporation
    • SETSUHARA, YuichiEBE, Akinori
    • H05H1/46C23C16/44C23C16/509H01L21/205H01L21/3065
    • H01J37/32651C23C14/358C23C16/509H01J37/32082H01J37/321H01J37/3211H01J2237/0266H05H1/46H05H2001/4667
    • Provided is a radio-frequency antenna with which the blocking or weakening of a radio-frequency induction electric field will not occur even if a thin-film material deposits on the antenna surface. A radio-frequency antenna 10 includes a linear antenna conductor 13, a dielectric protective pipe 14 provided around the antenna conductor 13, and a deposit shield 15 provided around the protective pipe 14, the deposit shield 15 covering at least one portion of the protective pipe 14 and having at least one opening 153 on any line extending along the length of the antenna conductor 13. Although the thin-film material adheres to the surfaces of the protective pipe and the deposit shield, the deposited substance has at least one discontinuous portion in the longitudinal direction of the antenna conductor. Therefore, in the case where the thin-film material is electrically conductive, the blocking of the radio-frequency induction electric field is prevented. In the case where the thin-film material is not electrically conductive, an attenuation in the intensity of the radio-frequency induction electric field is suppressed.
    • 提供一种射频天线,即使薄膜材料沉积在天线表面上也不会发生射频感应电场的阻塞或弱化。 射频天线10包括线状天线导体13,设置在天线导体13周围的介质保护管14和设置在保护管14周围的沉积屏蔽15,沉积屏蔽15覆盖保护管的至少一部分 14,并且在沿着天线导体13的长度延伸的任何线上具有至少一个开口153.尽管薄膜材料粘附到保护管和沉积屏蔽的表面上,但沉积物质具有至少一个不连续部分 天线导体的纵向。 因此,在薄膜材料导电的情况下,防止了射频感应电场的阻塞。 在薄膜材料不导电的情况下,抑制了射频感应电场强度的衰减。