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    • 12. 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
    • US07335278B2
    • 2008-02-26
    • US10675966
    • 2003-10-02
    • Chishio KoshimizuHiroyuki IshiharaKimihiro HiguchiKoji Maruyama
    • Chishio KoshimizuHiroyuki IshiharaKimihiro HiguchiKoji Maruyama
    • H01L21/00C23C16/00C23C14/00
    • H01L21/6831H01J37/32623H01J37/32642H01J2237/2001H01L21/67248Y10S156/915
    • An electrostatic chuck 108 is provided on a lower electrode 106 provided inside a processing chamber 102 of an etching apparatus 100, and a conductive inner ring body 112a and an insulating outer ring body 112b are encompassing the outer edges of a wafer W mounted on the chuck surface. The temperatures of the wafer W and the inner and outer ring bodies 112a and 112b are detected by first˜third temperature sensors 142, 144 and 146. A controller 140 controls the pressure levels of He supplied to the space between the center of the wafer W and the electrostatic chuck 108 via first gas outlet ducts 114 and to the space between the outer edges of the wafer W and the electrostatic chuck 108 via second gas outlet ducts 116 and the quantity of heat generated by a heater 148 inside the outer ring body 112b based upon the information on the temperatures thus detected so that the temperatures of the wafer W and the inner ring body 112a are set roughly equal to each other.
    • 静电吸盘108设置在设置在蚀刻装置100的处理室102内部的下部电极106上,并且导电内圈主体112a和绝缘外圈主体112b围绕安装在晶片W的外边缘 卡盘表面。 晶片W和内外环体112a和112b的温度由第一至第三温度传感器142,144和146检测。控制器140控制供应给第一至第三温度传感器142,144和146的中心之间的空间的He的压力水平 晶片W和静电卡盘108经由第一气体出口管114以及经由第二气体出口管道116与晶片W的外边缘和静电卡盘108之间的空间以及由外部环内的加热器148产生的热量 基于关于如此检测的温度的信息,使得晶片W和内环体112a的温度大致相等。
    • 19. 发明授权
    • Method and devices for detecting the end point of plasma process
    • 用于检测等离子体工艺终点的方法和装置
    • US5980767A
    • 1999-11-09
    • US899864
    • 1997-07-24
    • Chishio KoshimizuKimihiro Higuchi
    • Chishio KoshimizuKimihiro Higuchi
    • G01N21/68H01L21/302
    • G01N21/68B81C1/00587B81C99/0065H01J37/32963H01J37/3299B81C2201/0142
    • Disclosed herein is a method of detecting an end point of plasma process performed on an object, and a plasma process apparatus. The method includes the steps of detecting an emission spectrum over a wavelength region specific to C.sub.2 in the plasma, by optical detecting means, and determining the end point of the plasma process from the emission intensity of the emission spectrum detected by the optical detector. The apparatus has a process chamber, a pair of electrodes, a light-collecting device, an optical detector, and a determining device. The chamber has a monitor window. The electrodes are located in the process chamber. The first electrode is used to support the object. A high-frequency power is supplied between the electrodes to change a process gas into plasma. The light-collecting device collects the light from the plasma through the monitor window. The optical detector detects an emission spectrum from the light collected. The determining device determines the end point of the plasma process from the emission intensity of the emission spectrum detected. The monitor window is secured to the distal end of a cylindrical member protruding from the chamber. The member has a narrow gas passage for trapping a gas generated by the plasma process.
    • 本文公开了一种检测对物体进行的等离子体处理的终点的方法和等离子体处理装置。 该方法包括以下步骤:通过光学检测装置检测等离子体中C2特有的波长区域上的发射光谱,并根据由光学检测器检测到的发射光谱的发射强度来确定等离子体处理的终点。 该装置具有处理室,一对电极,光收集装置,光学检测器和确定装置。 该房间有一个监视器窗口。 电极位于处理室中。 第一个电极用于支撑物体。 在电极之间提供高频电力以将处理气体改变为等离子体。 集光装置通过监视窗收集来自等离子体的光。 光学检测器从所收集的光线检测发射光谱。 确定装置根据检测到的发射光谱的发射强度确定等离子体处理的终点。 监视器窗口固定到从腔室突出的圆柱形构件的远端。 该构件具有用于捕获由等离子体工艺产生的气体的窄气体通道。