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    Gas laser chamber with vertical vibration isolator
    1.
    发明授权
    Gas laser chamber with vertical vibration isolator 有权
    带垂直隔振器的气体激光室

    公开(公告)号：US06425559B1

    公开(公告)日：2002-07-30

    申请号：US09675492

    申请日：2000-09-29

    申请人： I. Roger Oliver ,  Alex P. Ivaschenko ,  William N. Partlo ,  Palash P. Das

    发明人： I. Roger Oliver ,  Alex P. Ivaschenko ,  William N. Partlo ,  Palash P. Das

    IPC分类号： F16M1100

    CPC分类号： H01S3/03 ,  H01S3/02

    摘要： A chamber/optics support structure for a laser having a laser chamber with a vibration source. The chamber and the laser resonance cavity optical elements are supported on a platform. The chamber is supported by a plurality of wheels which in turn rests on two tracks on track supports mounted on the platform. A vertical vibration isolator isolates vertical vibrations originating in the chamber from the laser optics. A flexible clamp flexibly clamps the chamber in a horizontal position to align it with the resonance cavity optical elements and to substantially decouple vibration between the chamber vibration source to the optical elements in a frequency range of concern. The invention is especially useful for positioning the heavy laser chamber of a narrow band excimer laser and for decoupling vibrations resulting from its blower from the lasers line narrowing module and output coupler. In a preferred embodiment the plurality of wheels is three wheels, two of which rest in a V-groove track and one of which rests on a flat track. This preferred embodiment uses two flexible clamps each having an adjustment bolt and four symmetrically spaced silicon rubber vibration isolators. Precise horizontal alignment of the chamber is accomplished using the adjustment bolt which is then held in position with a lock nut and a clamping bolt. Silicon rubber dampers in the isolators decouple horizontal chamber vibrations from the optical elements. In specific embodiments, the vertical vibration isolator may be a flexible liner in the wheels or in the rails or alternatively a pad on which the chamber rests.

    摘要翻译： 一种用于具有具有振动源的激光室的激光器的腔室/光学器件支撑结构。 腔室和激光共振腔光学元件支撑在平台上。 该室由多个轮支撑，多个轮依次放置在安装在平台上的轨道支架上的两个轨道上。 垂直隔振器将起始于室内的垂直振动与激光光学器件隔离。 柔性夹具可灵活地将腔室夹紧在水平位置，以将其与共振腔光学元件对准，并使其在腔室振动源与光学元件之间的振动基本上在关注的频率范围内分离。本发明特别适用于定位重物 激光腔的窄带准分子激光器，并将其鼓风机的振动与激光线变窄模块和输出耦合器分离。 在优选实施例中，多个车轮是三个车轮，其中两个车轮搁置在V形槽轨道中，其中一个车轮搁置在平坦轨道上。 该优选实施例使用两个柔性夹具，每个柔性夹具具有调节螺栓和四个对称间隔的硅橡胶隔振器。 使用调节螺栓实现腔室的精确水平对准，调节螺栓然后通过锁紧螺母和夹紧螺栓保持在适当的位置。 隔离器中的硅橡胶阻尼器将水平室振动与光学元件分离。在具体实施例中，垂直隔振器可以是轮子中或轨道中的柔性衬垫，或者替代地，腔室搁置在其上。

    EUV light source
    2.
    发明授权
    EUV light source 有权
    EUV光源

    公开(公告)号：US07323703B2

    公开(公告)日：2008-01-29

    申请号：US11647007

    申请日：2006-12-27

    申请人： I. Roger Oliver ,  William N. Partlo ,  Igor V. Fomenkov ,  Alexander I. Ershov ,  Norbert Bowering ,  John Viatella ,  David W. Myers

    发明人： I. Roger Oliver ,  William N. Partlo ,  Igor V. Fomenkov ,  Alexander I. Ershov ,  Norbert Bowering ,  John Viatella ,  David W. Myers

    IPC分类号： H01J35/20

    CPC分类号： G03F7/70033 ,  B82Y10/00 ,  G03F7/70175 ,  G03F7/70916 ,  G21K1/062 ,  G21K2201/061 ,  G21K2201/065 ,  G21K2201/067 ,  H05G2/003 ,  H05G2/005 ,  H05G2/006 ,  H05G2/008

    摘要： An apparatus and method is described which may comprise a plasma produced extreme ultraviolet (“EUV”) light source multilayer collector which may comprise a plasma formation chamber; a shell within the plasma formation chamber in the form of a collector shape having a focus; the shell having a sufficient size and thermal mass to carry operating heat away from the multilayer reflector and to radiate the heat from the surface of the shell on a side of the shell opposite from the focus. The material of the shell may comprise a material selected from a group which may comprise silicon carbide, silicon, Zerodur or ULE glass, aluminum, beryllium, molybdenum, copper and nickel. The apparatus and method may comprise at least one radiative heater directed at the shell to maintain the steady state temperature of the shell within a selected range of operating temperatures.

    摘要翻译： 描述了可以包括可以包括等离子体形成室的等离子体产生的极紫外（“EUV”）光源多层收集器的装置和方法; 等离子体形成室内的壳体，具有焦点的收集器形状; 壳体具有足够的尺寸和热质量以将工作热量从多层反射器散开，并且在壳体的与焦点相对的一侧上从壳体的表面辐射热量。 壳的材料可以包括选自可以包括碳化硅，硅，Zerodur或ULE玻璃，铝，铍，钼，铜和镍的组的材料。 装置和方法可以包括指向壳体的至少一个辐射加热器，以将壳体的稳态温度维持在所选择的工作温度范围内。

    Gas discharge laser with roller bearings and stable magnetic axial positioning
    3.
    发明授权
    Gas discharge laser with roller bearings and stable magnetic axial positioning 有权
    气体放电激光与滚子轴承和稳定的磁轴定位

    公开(公告)号：US06026103A

    公开(公告)日：2000-02-15

    申请号：US290852

    申请日：1999-04-13

    申请人： I. Roger Oliver ,  Igor V. Fomenkov ,  William N. Partlo

    发明人： I. Roger Oliver ,  Igor V. Fomenkov ,  William N. Partlo

    IPC分类号： H01S3/036 ,  H01S3/00

    CPC分类号： H01S3/036

    摘要： An electric discharge gas laser having a laser cavity in which is contained a laser gas and a fan for circulating the laser gas. The fan is supported in position radially by a roller bearing system and axially at least in part by magnetic forces. In a preferred embodiment the magnetic forces are supplied by a brushless DC motor in which the rotor of the motor is sealed within the gas environment of the laser cavity and the motor stator is located outside the gas environment. The magnetic center of the rotor is offset from the center of the stator to produce a magnetic reluctance generated force on the shaft that acts axially on the shaft toward the non-drive end and is reacted by a ball and plate bearing assembly mounted along the axis of rotation at the opposite end of the shaft.

    摘要翻译： 一种具有激光腔的放电气体激光器，其中包含激光气体和用于使激光气体循环的风扇。 风扇通过滚子轴承系统径向支撑在位置，并至少部分地由磁力轴向地支撑。 在优选实施例中，磁力由无刷直流电动机提供，其中电机的转子在激光腔的气体环境内被密封，并且电动机定子位于气体环境的外部。 转子的磁心偏离定子的中心，以产生轴上的磁阻产生力，该轴在轴上朝向非驱动端轴向作用，并且通过沿着轴线安装的球和轴承组件反作用 在轴的相对端旋转。

    Plasma focus light source with improved pulse power system
    4.
    发明授权
    Plasma focus light source with improved pulse power system 失效
    等离子聚焦光源具有改进的脉冲电源系统

    公开(公告)号：US06815700B2

    公开(公告)日：2004-11-09

    申请号：US10189824

    申请日：2002-07-03

    申请人： Stephan T. Melnychuk ,  William N. Partlo ,  Igor V. Fomenkov ,  I. Roger Oliver ,  Richard M. Ness ,  Norbert Bowering ,  Oleh Khodykin

    发明人： Stephan T. Melnychuk ,  William N. Partlo ,  Igor V. Fomenkov ,  I. Roger Oliver ,  Richard M. Ness ,  Norbert Bowering ,  Oleh Khodykin

    IPC分类号： H05H104

    CPC分类号： H05G2/003 ,  B82Y10/00 ,  G03F7/70033 ,  G03F7/70166 ,  G03F7/70916 ,  H05G2/005 ,  H05H1/06

    摘要： The present invention provides a high energy photon source. A pair of plasma pinch electrodes are located in a vacuum chamber. The chamber contains a working gas which includes a noble buffer gas and an active gas chosen to provide a desired spectral line. A pulse power source provides electrical pulses at voltages high enough to create electrical discharges between the electrodes to produce very high temperature, high density plasma pinches in the working gas providing radiation at the spectral line of the source or active gas. Preferably the electrodes are configured co-axially. The central electrode is preferably hollow and the active gas is introduced out of the hollow electrode. This permits an optimization of the spectral line source and a separate optimization of the buffer gas. In preferred embodiments the central electrode is pulsed with a high negative electrical pulse so that the central electrode functions as a hollow cathode. Preferred embodiments present optimization of capacitance values, anode length and shape and preferred active gas delivery systems are disclosed. Preferred embodiments also include a pulse power system comprising a charging capacitor and a magnetic compression circuit comprising a pulse transformer. Special techniques are described for cooling the central electrode. In one example, water is circulated through the walls of the hollow electrode. In another example, a heat pipe cooling system is described for cooling the central electrode.

    摘要翻译： 本发明提供了一种高能量光子源。 一对等离子体夹紧电极位于真空室中。 该室包含工作气体，其包括贵重缓冲气体和被选择用于提供所需光谱线的活性气体。 脉冲电源在电压足够高的电压下提供电脉冲，以在电极之间产生放电，以在工作气体中产生非常高温度，高密度的等离子体夹持，从而在源或活性气体的光谱线处提供辐射。 优选地，电极被同轴配置。 中心电极优选是中空电极，并且活性气体从中空电极引出。 这允许对光谱线源进行优化和缓冲气体的单独优化。 在优选的实施例中，中心电极用高的负电脉冲脉冲，使得中心电极用作空心阴极。 本发明优选的实施例公开了电容值的优化，阳极长度和形状以及优选的活性气体输送系统。 优选实施例还包括脉冲功率系统，其包括充电电容器和包括脉冲变压器的磁压缩电路。 描述了用于冷却中心电极的特殊技术。 在一个实例中，水通过中空电极的壁循环。 在另一个实例中，描述了用于冷却中心电极的热管冷却系统。

    Extreme repetition rate gas discharge laser with improved blower motor
    5.
    发明授权
    Extreme repetition rate gas discharge laser with improved blower motor 失效
    极端重复率气体放电激光器与改进的鼓风机电机

    公开(公告)号：US06477193B2

    公开(公告)日：2002-11-05

    申请号：US09748316

    申请日：2000-12-22

    申请人： I. Roger Oliver ,  William N. Partlo

    发明人： I. Roger Oliver ,  William N. Partlo

    IPC分类号： H01S322

    CPC分类号： H01S3/225 ,  G03F7/70025 ,  G03F7/70041 ,  G03F7/70333 ,  G03F7/70483 ,  G03F7/70575 ,  G03F7/70933 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/0404 ,  H01S3/041 ,  H01S3/097 ,  H01S3/09702 ,  H01S3/0971 ,  H01S3/0975 ,  H01S3/104 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/134 ,  H01S3/22 ,  H01S3/2207 ,  H03K3/57 ,  H03K17/80

    摘要： A gas discharge laser capable of operating at pulse rates in the range of 4,000 Hz to 6,000 Hz at pulse energies in the range of 5 mJ to 10 mJ or greater. Important improvements over prior art designs include: (1) a squirrel cage type fan for producing gas velocities through the discharge region of more than 67 m/s and capable of continuous trouble-free operation for several months, (2) a liquid cooled drive motor having a low loss sealing member separating the motor rotor from the motor starter and protecting the motor from the laser gas and a breach detection device for detecting any breach of the sealing member, (3) a heat exchanger system capable of removing in excess of 16 kw of heat energy from the laser gas and (4) a pulse power system capable of providing precisely controlled electrical pulses to the electrodes needed to produce laser pulses at the desired pulse energies in the range of 5 mJ to 10 mJ or greater at pulse repetition rates in the range of 4,000 Hz to 6,000 Hz or greater.

    摘要翻译： 一种气体放电激光器，能够以5mJ至10mJ或更大的脉冲能量在4000Hz至6,000Hz的脉冲频率下工作。 与现有技术设计相比，重要的改进包括：（1）用于通过超过67m / s的排放区域产生气体速度并能够连续无故障运行数月的鼠笼式风扇，（2）液冷驱动 电动机具有低损耗密封构件，其将电动机转子与电动机起动器分离并保护电动机免受激光气体的影响;以及用于检测任何泄漏密封构件的泄漏检测装置，（3）能够超过 来自激光气体的16kw的热能和（4）脉冲电力系统，其能够在脉冲处产生在5mJ至10mJ或更大的范围内的期望脉冲能量处产生激光脉冲所需的精确控制的电脉冲 重复率在4000Hz至6000Hz或更大的范围内。

    Plasma focus light source with improved pulse power system
    8.
    发明授权
    Plasma focus light source with improved pulse power system 失效
    等离子聚焦光源具有改进的脉冲电源系统

    公开(公告)号：US06566667B1

    公开(公告)日：2003-05-20

    申请号：US09690084

    申请日：2000-10-16

    申请人： William N. Partlo ,  Igor V. Fomenkov ,  I. Roger Oliver ,  Richard M. Ness ,  Daniel L. Birx

    发明人： William N. Partlo ,  Igor V. Fomenkov ,  I. Roger Oliver ,  Richard M. Ness ,  Daniel L. Birx

    IPC分类号： H05H134

    CPC分类号： H05G2/003 ,  B82Y10/00 ,  G03F7/70033 ,  G03F7/70166 ,  G03F7/70916 ,  H05G2/005 ,  H05H1/06

    摘要： A high energy photon source. A pair of plasma pinch electrodes are located in a vacuum chamber. The chamber contains a working gas which includes a noble buffer gas and an active gas chosen to provide a desired spectral line. A pulse power source provides electrical pulses at voltages high enough to create electrical discharges between the electrodes to produce very high temperature, high density plasma pinches in the working gas providing radiation at the spectral line of the source or active gas. Preferably the electrodes are configured co-axially with the anode on the axis. The anode is preferably hollow and the active gas is introduced through the anode. This permits an optimization of the spectral line source and a separate optimization of the buffer gas. Preferred embodiments present optimization of capacitance values, anode length and shape and preferred active gas delivery systems are disclosed. Preferred embodiments also include a pulse power system comprising a charging capacitor and a magnetic compression circuit comprising a pulse transformer. A heat pipe cooling system is described for cooling the central anode.

    摘要翻译： 高能光子源。 一对等离子体夹紧电极位于真空室中。 该室包含工作气体，其包括贵重缓冲气体和被选择用于提供所需光谱线的活性气体。 脉冲电源在电压足够高的电压下提供电脉冲，以在电极之间产生放电，以在工作气体中产生非常高温度，高密度的等离子体夹持，从而在源或活性气体的光谱线处提供辐射。 优选地，电极与轴上的阳极同轴地配置。 阳极优选是中空的，并且活性气体通过阳极引入。 这允许对光谱线源进行优化和缓冲气体的单独优化。 本发明优选的实施例公开了电容值的优化，阳极长度和形状以及优选的活性气体输送系统。 优选实施例还包括脉冲功率系统，其包括充电电容器和包括脉冲变压器的磁压缩电路。 描述了用于冷却中央阳极的热管冷却系统。