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    • 75. 发明授权
    • Predictive wafer temperature control system and method
    • 预测晶圆温度控制系统及方法
    • US06468384B1
    • 2002-10-22
    • US09710083
    • 2000-11-09
    • Vikram SinghRobert J. WhitingPaul K. ShufflebothamAjay Saproo
    • Vikram SinghRobert J. WhitingPaul K. ShufflebothamAjay Saproo
    • C23F100
    • H01L21/67248H01J37/3299H01J2237/2001H01L21/6831
    • The present invention provides plasma processing systems and methods for providing a set-point temperature for substrates during plasma processing by controlling clamping force or RF power. The plasma processing system includes a plasma chamber, a controller, and an electrostatic power supply. The plasma chamber is arranged to receive an RF power and a source gas for producing plasma. The plasma chamber includes an electrostatic chuck for clamping a substrate in place during plasma processing. The electrostatic chuck includes an electrode and a sensor, which is arranged to monitor temperature of the substrate being processed. The controller is coupled to the sensor to receive the substrate temperature and is configured to generate a control signal for driving the substrate temperature to the set-point temperature. The electrostatic power supply is coupled between the controller and the electrode in the electrostatic chuck. The electrostatic power supply receives the control signal from the controller and generates a voltage adapted to clamp the substrate with a clamping force. In this configuration, the electrostatic power supply provides the voltage to the electrode to clamp the substrate such that the substrate temperature is driven to the set-point temperature.
    • 本发明提供等离子体处理系统和方法,用于通过控制夹紧力或RF功率在等离子体处理期间提供基板的设定点温度。 等离子体处理系统包括等离子体室,控制器和静电电源。 等离子体室被布置成接收用于产生等离子体的RF功率和源气体。 等离子体室包括用于在等离子体处理期间将衬底夹持就位的静电吸盘。 静电卡盘包括电极和传感器,其被设置为监测被处理的基板的温度。 控制器耦合到传感器以接收衬底温度,并且被配置为产生用于将衬底温度驱动到设定点温度的控制信号。 静电电源连接在控制器和静电吸盘中的电极之间。 静电电源接收来自控制器的控制信号,并产生适合于用夹紧力夹紧衬底的电压。 在该结构中,静电电源向电极提供电压以夹紧基板,使得基板温度被驱动到设定点温度。
    • 76. 发明授权
    • Method and apparatus for improving etch and deposition uniformity in
plasma semiconductor processing
    • 改善等离子体半导体处理中的蚀刻和沉积均匀性的方法和装置
    • US06042687A
    • 2000-03-28
    • US885346
    • 1997-06-30
    • Vikram SinghBrian McMillinTom NiMichael BarnesRichard Yang
    • Vikram SinghBrian McMillinTom NiMichael BarnesRichard Yang
    • H01J37/32H05H1/00H01L21/00
    • H01J37/3244H01J37/321
    • A plasma processing system and method for processing substrates such as by chemical vapor deposition or etching. The system includes a plasma processing chamber, a substrate support for supporting a substrate within the processing chamber, a dielectric member having an interior surface facing the substrate support, the dielectric member forming a wall of the processing chamber, a primary gas supply supplying a primary gas such as process gas into the chamber, a secondary gas supply supplying a secondary gas such as a substantially inert, a substrate passivating or a reactant scavenging gas into the chamber, and an RF energy source such as a planar coil which inductively couples RF energy through the dielectric member and into the chamber to energize the primary gas into a plasma state. The secondary gas is concentrated near the periphery of the substrate, improving etching/deposition uniformity across the substrate surface.
    • 一种等离子体处理系统和方法,用于通过化学气相沉积或蚀刻来处理衬底。 该系统包括等离子体处理室,用于在处理室内支撑衬底的衬底支撑件,具有面向衬底支撑件的内表面的电介质构件,形成处理室壁的电介质构件, 将诸如工艺气体的气体引入室中,将诸如基本惰性的二次气体,基底钝化或反应物清除气体的二次气体供给到腔室中,以及RF能量源,例如平面线圈,其感应耦合RF能量 通过电介质构件并进入腔室以将主气体激发成等离子体状态。 二次气体集中在衬底的周边附近,从而提高衬底表面的蚀刻/沉积均匀性。