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    • 4. 发明专利
    • ELECTROSTATIC CHUCK DEVICE
    • JPH09321128A
    • 1997-12-12
    • JP16108296
    • 1996-05-31
    • ULVAC CORP
    • SUNADA TAKESHIFUJIMOTO HIDEKIKIKUCHI MASASHIWATANABE MIDORI
    • H05H1/46B23Q3/15H01L21/302H01L21/3065H01L21/68H01L21/683H02N13/00
    • PROBLEM TO BE SOLVED: To provide an electrostatic chuck device which enables uniform plasma processing of a substrate surface. SOLUTION: Two electrodes 21 , 22 formed in a flat shape are located substantially in the same plane. An insulating material 3 is provided on the surface of each of the electrodes 21 , 22 , and a substrate 4 is arranged on the surface of the insulating material 3. When a voltage is applied between the electrodes 21 , 22 to perform electrostatic attraction, the spacing between the two electrodes 21 , 22 is caused to be not greater than five times the thickness of the insulating material 3 on the electrodes 21 , 22 . The capacitance value between the substrate 4 and the electrodes 21 , 22 becomes substantially uniform at any point, thus enabling uniform plasma processing of the surface of the substrate 4. It is preferred that the spacing between the electrodes 21 , 22 is narrowed within such a range that static damage is not generated. However, in the case where the maximum applied voltage is determined, the magnitude of a current which flows on application of that voltage between the electrodes 21 , 22 may be caused to be not greater than the magnitude of a predetermined leakage current.
    • 6. 发明专利
    • Multi-stage type electrode assembly
    • 多级电极组件
    • JPS6173891A
    • 1986-04-16
    • JP19479884
    • 1984-09-19
    • Ulvac Corp
    • KIKUCHI MASASHI
    • C23F4/00C23F1/08
    • PURPOSE: To increase the total number of substrates to be treated by mounting rotating electrode attached with plural pieces of the substrate to be treated to the same revolving shaft in a vacuum vessel into multiple stages and making equal the area of the stationary electrodes facing the rotating electrodes.
      CONSTITUTION: The rotating electrodes 8, 9 on which the many substrates to be treated are placed are attached to the hollow revolving shaft 7 in the vacuum vessel 6 and the stationary electrodes 10, 11 are provided to face the rotating electrodes 8, 9. An auxiliary electrode 12 is provided to the central part of the electrode 8 and an insulating member 13 is provided so as to enclose the electrode 12 in the central part of the electrode 10 so that the areas of both electrodes 8, 9 and both electrodes 10, 11 are made equal to make equal the discharge impedances in the respective stages. RF electric power is thrown in this stage to the respective electrodes 8, 9 via the shaft 7 from an RF power source 19, by which the uniform etching treatment of the substrates 18 is made possible.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过将多个待处理基片的旋转电极安装在真空容器中的同一个旋转轴上,使多个基板的总数增加到多个阶段,使面对旋转的固定电极的面积相等 电极。 构成:其上放置有许多待处理基板的旋转电极8,9附着在真空容器6中的中空旋转轴7上,并且固定电极10,11设置成面对旋转电极8,9。 辅助电极12设置在电极8的中心部分,并且设置绝缘构件13以将电极12包围在电极10的中心部分,使得电极8,9和两个电极10的面积, 使得等于使各级的放电阻抗相等。 在这个阶段,RF电力经由轴7从RF电源19被投入到各个电极8,9上,由此能够对基板18进行均匀的蚀刻处理。
    • 7. 发明专利
    • Apparatus for monitoring discharge state in discharge treatment apparatus
    • 放射治疗装置监测放射状态装置
    • JPS5941475A
    • 1984-03-07
    • JP15171282
    • 1982-09-02
    • Ulvac Corp
    • KIKUCHI MASASHI
    • C23F4/00C23C14/54H01J37/32
    • H01J37/32935C23C14/54
    • PURPOSE:To provide the titled apparatus for enhancing the yield of a discharge treatment apparatus and enabling the proper automation thereof, constituted so as to detect the discharge of the discharge treatment apparatus by a discharge detecting apparatus for detecting plasma potential such as a probe or the like to decide a discharge state. CONSTITUTION:In a discharge treatment apparatus such as a sputtering apparatus or an etching apparatus wherein discharge electrodes 2, 3 connected to a RF power source 5 through a matching circuit 4 and a trigger electrode 6 connected to a trigger electrode 7 for generating discharge are mounted in a vacuum chamber 1, discharge detecting apparatuses such as a single or a double probe 8, a photosensor 10 detecting plasma light through a viewing window 9, a self-bias detector 11 for detecting the DC component of discharge applying voltage or the like are provided and the detected signals are respectively inputted to a comparator 16 through amplifiers 12, 13, 14 and a change- over apparatus 15 to be compared to the reference signal from a reference signal generator 17 to decide a discharge state. In addition, on the basis of the result, the trigger power source 7 is controlled by a relay drive cicuit 18 to make it possible to automate the apparatus.
    • 目的:提供一种用于提高放电处理装置的产量的标题装置,并且能够进行适当的自动化,其构成为通过用于检测诸如探针等的等离子体电位的放电检测装置来检测放电处理装置的放电 喜欢决定放电状态。 构成:在诸如溅射装置或蚀刻装置的放电处理装置中,安装了通过匹配电路4连接到RF电源5的放电电极2,3和连接到用于产生放电的触发电极7的触发电极6 在真空室1中,诸如单个或双重探针8的放电检测装置,通过观察窗9检测等离子体光的光电传感器10,用于检测放电施加电压的直流分量的自偏置检测器11等 并且将检测到的信号分别通过放大器12,13,14和转换装置15输入到比较器16,以与来自参考信号发生器17的参考信号进行比较以决定放电状态。 此外,根据该结果,触发电源7由继电器驱动电路18控制,使得能够使装置自动化。