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    • 2. 发明授权
    • Plasma processing apparatus
    • 等离子体处理装置
    • US08496781B2
    • 2013-07-30
    • US11182793
    • 2005-07-18
    • Kenetsu YokogawaKenji MaedaMasaru Izawa
    • Kenetsu YokogawaKenji MaedaMasaru Izawa
    • C23C16/00C23F1/00H01L21/306H05B31/26
    • H01J37/32174H01J37/32082
    • The invention provides a plasma processing apparatus which is based upon a dry etching apparatus and which can inhibit the contamination of a work piece caused by sputtering onto a wall of a vacuum chamber, the occurrence of a foreign matter, the increase of a running cost for replacing the walls of the vacuum chamber and the deterioration of a rate of operation. The plasma processing apparatus according to the invention is based upon the dry etching apparatus having parallel plate structure and is characterized in that a low-pass filter having high impedance to a frequency of a high frequency power source for generating discharge, having small resistance to direct current and grounded is connected to an electrode for generating discharge which is arranged in a position opposite to the work piece and to which the high frequency power source for generating discharge is connected or a low-pass filter having small resistance to direct current and grounded and a direct-current power source connected in series with it are connected to the electrode for generating discharge.
    • 本发明提供了一种基于干蚀刻装置的等离子体处理装置,其可以抑制由溅射引起的工件对真空室的壁的污染,异物的发生,运行成本的增加 更换真空室的壁和操作速度的恶化。 根据本发明的等离子体处理装置基于具有平行板结构的干式蚀刻装置,其特征在于,具有高阻抗频率的低通滤波器,用于产生放电的高频电源的频率,具有较小的直接阻抗 电流和接地连接到用于产生放电的电极,其布置在与工件相对的位置,并且用于产生放电的高频电源被连接到该电极上,或者具有对直流电阻和接地电阻小的低通滤波器, 与其串联连接的直流电源连接到用于产生放电的电极。
    • 8. 发明申请
    • PLASMA PROCESSING APPARATUS AND PLASMA PROCESSING METHOD
    • 等离子体加工设备和等离子体处理方法
    • US20100025369A1
    • 2010-02-04
    • US12202642
    • 2008-09-02
    • Nobuyuki NEGISHIMasaru IzawaKenji Maeda
    • Nobuyuki NEGISHIMasaru IzawaKenji Maeda
    • G01L11/02
    • H01J37/32642H01J37/32935H01J37/3299
    • To monitor the thickness of a focus ring consumed during wafer processing. A plasma processing apparatus includes a vacuum chamber 1, workpiece mounting means 5, high frequency electric power introducing means 4 and radio-frequency bias electric power introducing means 7 and processes a surface of a workpiece 6 using a plasma that is converted from a gas introduced into the vacuum chamber 1 by the action of a high frequency electric power introduced by the high frequency electric power introducing means 4. The plasma processing apparatus further includes an annular member 11 surrounding the workpiece 6 mounted on the workpiece mounting means 5, and a pair of tubes having an aspect ratio of 3 or higher and disposed on a side wall of the vacuum chamber 1 to face each other. Each tube is vacuum-sealed at a tip end thereof with a glass material. One of the tubes has a light source 15 disposed facing to the interior of the vacuum chamber on the atmosphere side of the glass material, and the other tube has light receiving means 16 disposed facing to the interior of the vacuum chamber on the atmosphere side of the glass material. The light receiving means 16 receives light passing across the surface of the annular member 11.
    • 监视在晶片处理期间消耗的聚焦环的厚度。 等离子体处理装置包括真空室1,工件安装装置5,高频电力引入装置4和射频偏置电力引入装置7,并使用从引入的气体转换的等离子体处理工件6的表面 通过高频电力引入装置4引入的高频电力进入真空室1.等离子体处理装置还包括环绕安装在工件安装装置5上的工件6的环形构件11和一对 的长径比为3或更高并且设置在真空室1的侧壁上以彼此面对的管。 每个管在其末端用玻璃材料进行真空密封。 其中一个管具有面向玻璃材料的气氛侧的真空室的内部设置的光源15,另一个管具有光接收装置16,该接收装置16面对真空室的大气侧的内部 玻璃材料。 光接收装置16接收穿过环形构件11的表面的光。