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    • 5. 发明申请
    • Discharge apparatus, plasma processing method and solar cell
    • 放电装置,等离子体处理方法和太阳能电池
    • US20050067934A1
    • 2005-03-31
    • US10670476
    • 2003-09-26
    • Masashi UedaTomoko TakagiNorikazu ItoYoshimi Watabe
    • Masashi UedaTomoko TakagiNorikazu ItoYoshimi Watabe
    • H01J17/26H01J37/32H01J61/28H01L31/20H05H1/24
    • H01L31/202H01J37/32091H01J2237/3132H01J2237/3137H01J2237/3142H05H1/46H05H2001/463Y02E10/50Y02P70/521
    • The object of this invention is to realize the new configuration of antenna and the electric power feeding method which substantially suppress the generation of standing wave and consequently to provide a discharge apparatus to generate plasma having an excellent uniformity, a plasma processing method for large-area substrate, and a solar cell manufactured with a high productivity. The present invention is composed of a plurality of U-shaped antenna elements having a power feeding end and a grounded end which are arranged to form an array antenna in such a way that the grounded end and the power feeding end are alternately placed in parallel at regular intervals on a plane, wherein the alternating current electric powers with the same excitation frequency are simultaneously fed to the power feeding ends with the phase shift of 180 degrees between adjacent power feeding ends, the excitation frequency of the alternating current power is 10 MHz-2 GHz, and the length of the conductor is set so that the measured ratio of reflected wave to incident wave is 0.1 or less at the power feeding end. It is also possible to determine the length La of straight conductor to hold the inequality: 0.5(1/α)
    • 本发明的目的是实现基本上抑制驻波产生的天线的新配置和馈电方法,从而提供具有均匀性优异的等离子体的放电装置,大面积等离子体处理方法 基板和以高生产率制造的太阳能电池。 本发明由具有供电端和接地端的多个U形天线元件组成,这些U形天线元件被布置成形成阵列天线,使得接地端和馈电端交替地平行放置在 其中具有相同激励频率的交流电功率在相邻供电端之间以180度的相移同时馈送到馈电端,交流功率的激励频率为10MHz- 2GHz,并且设定导体的长度,使得测得的反射波与入射波的比例在馈电端为0.1或更小。 也可以确定直线导体的长度La以保持不等式:0.5(1 /α)