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    • 5. 发明授权
    • Plasma processing apparatus and plasma processing method
    • 等离子体处理装置和等离子体处理方法
    • US08741097B2
    • 2014-06-03
    • US12913162
    • 2010-10-27
    • Yohei YamazawaChishio KoshimizuMasashi SaitoKazuki DenpohJun Yamawaku
    • Yohei YamazawaChishio KoshimizuMasashi SaitoKazuki DenpohJun Yamawaku
    • H01L21/306C23C16/00
    • H01J37/3211H01J37/321H01J37/32146H01L21/67109H01L21/6831
    • A plasma processing apparatus includes a processing chamber including a dielectric window; a coil-shaped RF antenna, provided outside the dielectric window; a substrate supporting unit provided in the processing chamber; a processing gas supply unit; an RF power supply unit for supplying an RF power to the RF antenna to generate a plasma of the processing gas by an inductive coupling in the processing chamber, the RF power having an appropriate frequency for RF discharge of the processing gas; a correction coil, provided at a position outside the processing chamber where the correction coil is to be coupled with the RF antenna by an electromagnetic induction, for controlling a plasma density distribution on the substrate in the processing chamber; a switching device provided in a loop of the correction coil; and a switching control unit for on-off controlling the switching device at a desired duty ratio by pulse width modulation.
    • 一种等离子体处理装置,包括:具有电介质窗的处理室; 设置在电介质窗外部的线圈状RF天线; 设置在所述处理室中的基板支撑单元; 处理气体供应单元; RF电源单元,用于向RF天线提供RF功率以通过处理室中的感应耦合产生处理气体的等离子体,所述RF功率具有用于处理气体的RF放电的适当频率; 校正线圈,设置在所述处理室外侧的位置处,所述校正线圈将通过电磁感应与所述RF天线耦合,用于控制所述处理室中的所述衬底上的等离子体密度分布; 设置在所述校正线圈的环路中的开关装置; 以及用于通过脉冲宽度调制以期望的占空比开关控制开关装置的开关控制单元。
    • 6. 发明授权
    • Plasma processing apparatus and plasma processing method
    • 等离子体处理装置和等离子体处理方法
    • US08608903B2
    • 2013-12-17
    • US12913135
    • 2010-10-27
    • Yohei YamazawaChishio KoshimizuMasashi SaitoKazuki DenpohJun YamawakuHachishiro Iizuka
    • Yohei YamazawaChishio KoshimizuMasashi SaitoKazuki DenpohJun YamawakuHachishiro Iizuka
    • H01L21/306C23C16/00
    • H01J37/321H01L21/31116H01L21/31122H01L21/31138
    • A plasma processing apparatus includes: a processing chamber including a dielectric window; a coil-shaped RF antenna, provided outside the dielectric window; a substrate supporting unit, provided in the chamber, for mounting thereon a target substrate; a processing gas supply unit for supplying a processing gas to the chamber; and an RF power supply unit for supplying an RF power to the RF antenna to generate a plasma of the processing gas by an inductive coupling in the chamber. The apparatus further includes a correction coil, provided at a position outside the chamber where the correction coil is to be coupled with the RF antenna by an electromagnetic induction, for controlling a plasma density distribution in the chamber; and an antenna-coil distance control unit for controlling a distance between the RF antenna and the correction coil while supporting the correction coil substantially in parallel with the RF antenna.
    • 一种等离子体处理装置,包括:包括电介质窗的处理室; 设置在电介质窗外部的线圈状RF天线; 基板支撑单元,设置在所述室中,用于在其上安装目标基板; 处理气体供应单元,用于将处理气体供应到所述室; 以及RF电源单元,用于向RF天线提供RF功率,以通过腔室中的感应耦合产生处理气体的等离子体。 该装置还包括校正线圈,其设置在室外的位置处,其中校正线圈将通过电磁感应与RF天线耦合,用于控制腔室中的等离子体密度分布; 以及天线线圈距离控制单元,用于在支撑基本上与RF天线并联的校正线圈的同时控制RF天线和校正线圈之间的距离。