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    • 4. 发明公开
    • 불소가스 방전 레이저용 캐소드
    • 氟气排放激光灯
    • KR1020060054359A
    • 2006-05-22
    • KR1020067001840
    • 2004-07-21
    • 사이머 엘엘씨
    • 스타이거토마스디.브라운조슈아씨.두페이토마스피.질레스피에월터디.모톤리차드지.다이어티모씨에스.
    • H01S3/22
    • H01S3/038H01S3/036H01S3/0381H01S3/0382H01S3/0385H01S3/0388H01S3/097H01S3/09702H01S3/0971H01S3/225H01S3/2251H01S3/2256H01S3/2258
    • A fluorine gas discharge laser electrode for a gas discharge laser having a laser gas containing fluorine is disclosed which may comprise a copper and copper alloy cathode body having an upper curved region containing the discharge footprint for the cathode comprising copper and a lower portion comprising a copper alloy, with the facing portion of the electrode if formed in a arcuate shape extending into straight line portions on either side of the arcuate portion, the straight line portions terminating in vertical straight sides, with the boundary between the copper including at least the arcuate portion, the electrode may comprise a bonded element machined from two pieces of material the first made of copper and the second made of a copper alloy bonded together before machining. The electrode may also comprise a first and a second elongated lopsided V-shaped groove formed along substantially all of the elongated electrode body forming a discharge receiving ridge between the first and second lopsided V-shaped grooves, with a differentially faster eroding material filling the first and second lopsided V-shaped grooves. also disclosed is an electrode system in which the one electrode, e.g., the cathode bows during operation and may comprise at least one of a first and second elongated gas discharge electrode being machined to form a crown to receive the gas discharge that compensates for the bowing of at least one of the gas discharge electrodes during operation of the fluorine gas discharge laser.
    • 公开了一种用于具有含氟激光气体的气体放电激光器的氟气放电激光电极,其可包括铜和铜合金阴极体,该铜和铜合金阴极体具有包含用于包含铜的阴极的放电足迹的上部弯曲区域,以及包含铜 合金,如果电极的对置部分形成为延伸到弓形部分两侧的直线部分的弓形形状,则直线部分终止于垂直的直边,铜线之间的边界至少包括弧形部分 电极可以包括由铜制成的两片材料和由加工前结合在一起的铜合金制成的第二个材料加工的接合元件。 电极还可以包括沿着基本上所有的细长电极体形成的第一和第二细长的非平面V形槽,该细长电极体在第一和第二偏斜V形槽之间形成放电接收脊,其中填充有第一 和第二个不对称的V形槽。 还公开了一种电极系统,其中一个电极例如阴极在操作期间弯曲并且可以包括被加工成形成冠部的第一和第二细长气体放电电极中的至少一个,以接收补偿弯曲的气体放电 的至少一个气体放电电极在氟气放电激光器的操作期间。
    • 8. 发明公开
    • 레이저 가스 주입 시스템
    • 激光喷射系统
    • KR1020090114446A
    • 2009-11-03
    • KR1020097018769
    • 2008-02-01
    • 사이머 엘엘씨
    • 던스탠웨인제이.오브라이언케빈엠.자크로버트엔.베사우셀허브에이.릭스다니엘제이.라트남아라빈드
    • H01S3/036H01S3/03H01S3/00
    • H01S3/036G03F7/70025G03F7/70525G03F7/70975H01S3/0014H01S3/1305H01S3/1306H01S3/134H01S3/2251H01S3/2256
    • A method and apparatus are disclosed which may comprise predicting the gas lifetime for a gas discharge laser light source for a photolithography process, the light source comprising a halogen contaim'ng lasing gas may comprise: utilizing at least one of a plurality of laser operating input and/or output parameters; utilizing a set of at least one parameter of utilization in the photolithography process to determine a gas use model in relation to the respective input or output parameter; predicting the end of gas life based upon the model and a measurement of the respective input or output parameter. The parameter may comprise a pulse utilization pattern. The method and apparatus may comprise performing gas management for a gas discharge laser light source for a photolithography process, the light source comprising a halogen containing lasing gas comprising: utilizing periodic and frequent partial gas refills comprising an inject comprising a mixture of halogen gas and bulk gas in generally the same ration as the premix ratio provided to the laser in a full gas refill, and in an amount less than two percent of the total gas pressure prior to the injection.
    • 公开了一种可以包括预测用于光刻工艺的气体放电激光源的气体寿命的方法和装置,包括卤素阻挡激光气体的光源可以包括:利用多个激光操作输入中的至少一个 和/或输出参数; 在光刻工艺中利用一组至少一个利用参数来确定相对于相应输入或输出参数的气体使用模型; 基于模型和相应的输入或输出参数的测量来预测气体寿命的结束。 该参数可以包括脉冲利用模式。 该方法和装置可以包括对用于光刻工艺的气体放电激光光源执行气体管理,该光源包括含卤素的激光气体,其包括:利用周期性和频繁的部分气体再填充,其包括含有卤素气体和体积的混合物 气体通常与在全气体再填充中提供给激光器的预混合比率相同,并且其量小于喷射前的总气体压力的2%。