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    • 1. 发明授权
    • Pressure monitoring system for chemical-mechanical polishing
    • 化学机械抛光压力监测系统
    • US06682399B1
    • 2004-01-27
    • US09715656
    • 2000-11-17
    • Chien-Hsin LaiJung-Nan TsengHuang-Yi LinKevin Yu
    • Chien-Hsin LaiJung-Nan TsengHuang-Yi LinKevin Yu
    • B24B4900
    • B24B37/30B24B49/16G05D16/2026
    • A pressure monitoring system arranged in a close loop circuit, intended to facilitate chemical mechanical polishing (CMP), is disclosed. The pressure monitoring circuit includes an air regulator, a pressure transducer, a pressure difference transducer and a pressure difference regulator. This hardware is equipped to facilitate finding three control parameters of the monitoring system—polishing pressure (Pp), pressure difference of the polishing pressure and a corresponding wafer pressure (Dp), and deviation of the output pressure difference from a set point pressure difference (Cp). By monitoring Pp, Dp and Cp, air streams in a CMP process can be effectively regulated on a real time basis and the troubleshooting procedure for the system hardware can be practically reduced.
    • 公开了一种布置在闭环回路中的压力监测系统,旨在促进化学机械抛光(CMP)。 压力监测电路包括空气调节器,压力传感器,压差传感器和压力差调节器。 该硬件配备有助于找到监控系统的三个控制参数 - 抛光压力(Pp),抛光压力的压差和相应的晶片压力(Dp),以及输出压力差与设定点压力差的偏差( Cp)。 通过监控Pp,Dp和Cp,可以实时有效地调节CMP过程中的气流,实际降低系统硬件的故障排除步骤。
    • 2. 发明授权
    • Chemical mechanical polishing apparatus
    • 化学机械抛光装置
    • US06341995B1
    • 2002-01-29
    • US09522488
    • 2000-03-10
    • Chien-Hsin LaiJuen-Kuen LinJung-Nan TsengHuang-Yi LinKevin Yu
    • Chien-Hsin LaiJuen-Kuen LinJung-Nan TsengHuang-Yi LinKevin Yu
    • B24B4900
    • B24B37/11B24B41/007B24B49/12
    • The present invention relates to improved chemical mechanical polishing apparatus, which reduce air sharp pressure on the polish head for preventing the breakage unpolished wafer. The improved chemical mechanical polishing apparatus of present invention is composed of a wafer head, a polish head, a damper and a sensor. The flowing speed of gas is reduced by making the diameter of the gas line connected to the damper air inlet smaller than the diameter of the gas line connected to the damper air outlet. The initial air sharp pressure is reduced and make &Dgr;P=Pwafer−Ppolish
    • 本发明涉及改进的化学机械抛光装置,其减少抛光头上的空气尖锐压力,以防止未磨光晶片破裂。 本发明改进的化学机械抛光装置由晶片头,抛光头,阻尼器和传感器构成。 通过使连接到阻尼器空气入口的气体管线的直径小于连接到阻尼器空气出口的气体管线的直径来减小气体的流动速度。 通过在入口和出口之间添加空气临时存储机,初始空气急剧压力降低,使DELTAP = Pwafer-Ppolish <0。 另外,将传感器放在空气临时存储器下的空气管路上,当浆料由于浆料隔膜的破裂而流入空气管路时,传感器将向改进的化学机械抛光装置的控制系统发送信号, 并使相关部件自动停止运转,避免破损。
    • 3. 发明授权
    • Pressure suppression device for chemical mechanical polishing machine and method thereof
    • 化学机械抛光机压力抑制装置及其方法
    • US06676801B2
    • 2004-01-13
    • US09845371
    • 2001-04-30
    • Chien-Hsin LaiJung-Nan TsengHuang-Yi LinFu-Yang Yu
    • Chien-Hsin LaiJung-Nan TsengHuang-Yi LinFu-Yang Yu
    • H01L21302
    • B24B37/30B24B37/042B24B49/16H01L21/30625
    • A pressure suppression device for a chemical mechanical polishing machine. The chemical mechanical polishing machine includes a polishing table and a polishing head. The polishing table has a polishing pad and a polishing gas input through which a polishing gas is charged. The polishing head holds a wafer and has a wafer gas input through which a wafer gas is charged. The pressure suppression device has a pressure releasing component and a gas input tube coupled to the wafer gas input and the pressure releasing component. When a polishing pressure applied to the polishing pad is smaller than a wafer pressure applied to the wafer, the pressure releasing component releases a part of the wafer pressure until the wafer pressure is smaller than the polishing pressure. As a result, this prevents the wafer slippage or broken wafer that occur when the wafer is blown off from the polishing head by too much wafer pressure.
    • 一种用于化学机械抛光机的压力抑制装置。 化学机械抛光机包括抛光台和抛光头。 抛光台具有抛光垫和抛光气体输入,通过该抛光气体输入抛光气体。 抛光头保持晶片并具有晶片气体输入,晶片气体通过晶片气体输入。 压力抑制装置具有联接到晶片气体输入端和压力释放部件的压力释放部件和气体输入管。 当施加到抛光垫的抛光压力小于施加到晶片的晶片压力时,压力释放组件释放晶片压力的一部分,直到晶片压力小于抛光压力。 结果,这防止了当晶片被太多的晶片压力从抛光头吹出时发生的晶片滑动或破碎的晶片。
    • 6. 发明授权
    • Device for detecting abnormality in chemical-mechanical polishing operation
    • 用于检测化学机械抛光操作异常的装置
    • US06416615B1
    • 2002-07-09
    • US09660863
    • 2000-09-13
    • Chien-Hsin LaiHui-Shen ShihJung-Nan TsengHuang-Yi Lin
    • Chien-Hsin LaiHui-Shen ShihJung-Nan TsengHuang-Yi Lin
    • C23F102
    • B24B37/0053B24B37/042B24B49/16H01L21/30625
    • A detecting device for monitoring any abnormality in chemical-mechanical polishing. The detecting device includes a motor, an inverter, a control circuit, a rotation sensor, a current sensor, a relay controller and a chemical-mechanical controller. The inverter converts a direct current into an alternating current for driving the motor. The control circuit controls size and functioning of the output alternating current from the inverter. The rotation sensor is a transducer for converting the running speed of the motor into a rotation signal and transmitting the signal to the control circuit. The current sensor monitors the size of the alternating current flowing to the motor and then outputs a current signal. The relay controller receives the current signal from the current sensor and outputs a drive signal. The chemical-mechanical polishing controller receives the drive signal from the relay controller and outputs a system halt signal to the control circuit. The detecting device of this invention is able to detect any serious scratching or chipping of a silicon chip during a chemical-mechanical polishing operation so that the amount of damaged chips is greatly reduced.
    • 一种用于监测化学机械抛光中的任何异常的检测装置。 检测装置包括电机,逆变器,控制电路,旋转传感器,电流传感器,继电器控制器和化学机械控制器。 逆变器将直流电转换成用于驱动电动机的交流电。 控制电路控制来自逆变器的输出交流电流的大小和功能。 旋转传感器是用于将电机的运行速度转换为旋转信号并将信号传输到控制电路的换能器。 电流传感器监测流向电动机的交流电流的大小,然后输出电流信号。 继电器控制器从电流传感器接收电流信号并输出​​驱动信号。 化学机械抛光控制器接收来自继电器控制器的驱动信号,并向控制电路输出系统停止信号。 本发明的检测装置能够在化学机械抛光操作期间检测到硅芯片的任何严重划伤或碎​​裂,从而大大降低损坏的芯片的数量。