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    • 2. 发明申请
    • SYSTEM AND METHOD FOR HIGH ACCURACY GAS REFILL IN A TWO CHAMBER GAS DISCHARGE LASER SYSTEM
    • 两台气体放电激光系统中高精度气体补充系统及方法
    • WO2013003193A1
    • 2013-01-03
    • PCT/US2012/043541
    • 2012-06-21
    • CYMER, INC.JIANG, RuiTHORNES, Joshua, J.RIGGS, Daniel, J.O'BRIEN, Kevin, M.
    • JIANG, RuiTHORNES, Joshua, J.RIGGS, Daniel, J.O'BRIEN, Kevin, M.
    • H01S3/22
    • H01S3/036H01S3/22H01S3/225H01S3/2308H01S3/2366
    • Systems and methods for automatically performing a high accuracy gas refill, in a laser chamber of a two chamber gas discharge laser such as an excimer laser are disclosed. Based, upon a target pressure and halogen concentration that is either predetermined or entered by a user, and with no further user action, a non-halogen containing gas is added to the chamber to a first pressure, followed by the addition of halogen containing gas to a second pressure which is greater than a target pressure for the chamber, such that the halogen content in the gas at the second pressure is at a desired concentration. The gas in the chamber is bled until the pressure drops to the target pressure. The amount of non-halogen containing gas added is estimated automatically, and the amount of halogen containing gas is measured so that the desired concentration is obtained, taking into account both temperature and any gas remaining in the fill pipes from prior laser operation.
    • 公开了在诸如准分子激光器的二室气体放电激光器的激光室中自动执行高精度气体补充的系统和方法。 基于目标压力和卤素浓度,其由用户预先确定或输入,并且在不再进一步的用户动作的情况下,将不含卤素的气体加入室中至第一压力,然后加入含卤素气体 达到大于室的目标压力的第二压力,使得在第二压力下的气体中的卤素含量处于所需浓度。 室内的气体流出,直到压力下降到目标压力。 自动估算不含卤素气体的量,并测量含卤素气体的量,以便从先前的激光操​​作考虑到温度和填充管中剩余的任何气体,获得所需的浓度。