Two-stage laser pulse energy control device and two-stage laser system
    1.
    发明申请
    Two-stage laser pulse energy control device and two-stage laser system 有权
    两级激光脉冲能量控制装置和两级激光系统

    公开(公告)号:US20060239309A1

    公开(公告)日:2006-10-26

    申请号:US10568091

    申请日:2004-08-09

    摘要: A charging voltage Vosc applied to a main capacitor C0 disposed in an oscillating high-voltage pulse generator 12 of an oscillating laser 100 is subject to constant control such that a pulse energy Posc of the oscillating laser 100 becomes a lower limit energy Es0 or more of an amplification saturation region. And, a charging voltage Vamp applied to a main capacitor C0 disposed in an amplifying high-voltage pulse generator 32 of an amplifying laser 300 is controlled, and pulse energy Pamp of the amplifying laser 300 is determined as target energy Patgt. Thus, the pulse energy of a two-stage laser is controlled to stabilize the pulse energy.

    摘要翻译: 施加到设置在振荡激光器100的振荡高电压脉冲发生器12中的主电容器C 0的充电电压Vosc受到恒定的控制,使得振荡激光器100的脉冲能量Posc成为下限能量Es 0或 更多的是放大饱和区域。 并且,控制施加到放大激光器300的放大高压脉冲发生器32中的主电容器C 0的充电电压Vamp,将放大激光器300的脉冲能量Pamp确定为目标能量Patgt。 因此,控制两级激光器的脉冲能量以稳定脉冲能量。

    Two-stage laser pulse energy control device and two-stage laser system
    2.
    发明授权
    Two-stage laser pulse energy control device and two-stage laser system 有权
    两级激光脉冲能量控制装置和两级激光系统

    公开(公告)号:US07382816B2

    公开(公告)日:2008-06-03

    申请号:US10568091

    申请日:2004-08-09

    IPC分类号: H01S3/22 H01S3/223

    摘要: A charging voltage Vosc applied to a main capacitor C0 disposed in an oscillating high-voltage pulse generator 12 of an oscillating laser 100 is subject to constant control such that a pulse energy Posc of the oscillating laser 100 becomes a lower limit energy Es0 or more of an amplification saturation region. And, a charging voltage Vamp applied to a main capacitor C0 disposed in an amplifying high-voltage pulse generator 32 of an amplifying laser 300 is controlled, and pulse energy Pamp of the amplifying laser 300 is determined as target energy Patgt. Thus, the pulse energy of a two-stage laser is controlled to stabilize the pulse energy.

    摘要翻译: 施加到设置在振荡激光器100的振荡高电压脉冲发生器12中的主电容器C 0的充电电压Vosc受到恒定的控制,使得振荡激光器100的脉冲能量Posc成为下限能量Es 0或 更多的是放大饱和区域。 并且,控制施加到放大激光器300的放大高压脉冲发生器32中的主电容器C 0的充电电压Vamp,将放大激光器300的脉冲能量Pamp确定为目标能量Patgt。 因此,控制两级激光器的脉冲能量以稳定脉冲能量。

    Optical element for gas laser and gas laser apparatus using the same
    3.
    发明授权
    Optical element for gas laser and gas laser apparatus using the same 有权
    用于气体激光的光学元件和使用其的气体激光装置

    公开(公告)号:US07965756B2

    公开(公告)日:2011-06-21

    申请号:US12545495

    申请日:2009-08-21

    IPC分类号: H01S3/22

    摘要: At least either of the light entering plane or the light exiting plane is parallel to the (111) crystal face of the CaF2 crystal and the laser beam entering from the entering plane passes through the plane located between the [111] axis and the first azimuth axis in the locus of rotation of the [001] axis around the [111] axis and including the [111] axis and the first azimuth axis, the plane located between the [111] axis and the second azimuth axis in the locus of rotation of the [010] axis around the [111] axis and including the [111] axis and the second azimuth axis or the plane located between the [111] axis and the third azimuth axis in the locus of rotation of the [100] axis around the [111] axis and including the [111] axis and the third azimuth axis and exits from the exiting plane.

    摘要翻译: 进入平面或出射平面的光中的至少任一个平行于CaF 2晶体的(111)晶面,并且从入射平面入射的激光束穿过位于[111]轴和第一方位角 [001]轴围绕[111]轴的旋转轨迹的轴线,包括[111]轴和第一方位轴,位于旋转轨迹中的[111]轴和第二方位角轴之间的平面 围绕[111]轴的[010]轴线,并且包括[111]轴和第二方位角轴或位于[111]轴和第三方位角之间的平面 围绕[111]轴并且包括[111]轴和第三方位角轴并从出射平面离开。

    Laser system
    4.
    发明申请
    Laser system 有权
    激光系统

    公开(公告)号:US20090232171A1

    公开(公告)日:2009-09-17

    申请号:US12382109

    申请日:2009-03-09

    IPC分类号: H01S3/10

    摘要: The higher efficiency and lower power consumption are realized in a laser system for generating a high-power short-pulse laser beam. The laser system includes a laser oscillator for generating a pulse laser beam by laser oscillation, plural amplifiers for sequentially inputting the pulse laser beam generated by the laser oscillator and amplifying the pulse laser beam, and a control unit for controlling the laser oscillator to perform burst oscillation and halting an amplification operation of at least one of the plural amplifiers in a burst halt period between burst oscillation periods.

    摘要翻译: 在用于产生大功率短脉冲激光束的激光系统中实现更高的效率和更低的功率消耗。 激光系统包括用于通过激光振荡产生脉冲激光束的激光振荡器,用于顺序地输入由激光振荡器产生的脉冲激光束并放大脉冲激光束的多个放大器,以及用于控制激光振荡器进行突发的控制单元 在突发振荡周期之间的突发停止时段中振荡并停止多个放大器中的至少一个的放大操作。

    METHOD OF CONTROLLING LASER APPARATUS AND LASER APPARATUS
    6.
    发明申请
    METHOD OF CONTROLLING LASER APPARATUS AND LASER APPARATUS 有权
    控制激光装置和激光装置的方法

    公开(公告)号:US20150188274A1

    公开(公告)日:2015-07-02

    申请号:US14579698

    申请日:2014-12-22

    摘要: A method of controlling a laser apparatus may include: exchanging a gain medium in a chamber configured to output a laser beam by exciting the gain medium; first measuring, after the exchanging, pulse energy of a laser beam which is oscillated in the chamber under a specific gas pressure and a specific charge voltage; calculating an approximate expression indicating a relationship between the pulse energy of the laser beam and the gas pressure in the chamber and the charge voltage, or a table representing a correlationship between the pulse energy, the gas pressure and the charge voltage, based on the specific pressure, the specific charge voltage and the pulse energy in the first measuring; storing the approximate expression or the table; second measuring, after the first measuring, pulse energy Er of a laser beam oscillated in the chamber; calculating pulse energy Eec which is supposed to be obtained directly after the exchanging under the gas pressure and the charge voltage in the second measuring based on the approximate expression or the table; calculating a reduction amount ΔEd of pulse energy based on the pulse energy Eec and the pulse energy Er using ΔEd=Eec−Er; and calculating a partial gas exchange amount Q for partial gas exchange in the chamber based on the reduction amount ΔEd of pulse energy.

    摘要翻译: 控制激光装置的方法可以包括:在配置成通过激励增益介质输出激光束的腔室中交换增益介质; 在交换之后,首先测量在特定气体压力和特定充电电压下在腔室中振荡的激光束的脉冲能量; 计算表示激光束的脉冲能量与腔室中的气体压力与充电电压之间的关系的近似表达式,或表示脉冲能量,气体压力和充电电压之间的相关性的表格, 压力,第一次测量中的具体充电电压和脉冲能量; 存储近似表达式或表格; 在第一次测量之后,第二次测量激光束的脉冲能量Er在腔室中振荡; 基于近似表达式或表格,计算在气体压力下的交换和第二测量中的充电电压之间直接获得的脉冲能量Eec; 使用&Dgr; Ed = Eec-Er计算基于脉冲能量Eec和脉冲能量Er的脉冲能量的减少量&Dgr; Ed; 并且基于脉冲能量的减少量&Dgr; Ed计算腔室中部分气体交换的部分气体交换量Q。

    Extreme ultraviolet light source apparatus
    7.
    发明授权
    Extreme ultraviolet light source apparatus 有权
    极紫外光源设备

    公开(公告)号:US08507883B2

    公开(公告)日:2013-08-13

    申请号:US12559977

    申请日:2009-09-15

    IPC分类号: G21G4/00

    CPC分类号: H05G2/003 H05G2/008

    摘要: An extreme ultraviolet light source apparatus provided with a magnetic field forming unit having sufficient capability of protection against ions radiated from plasma while using a relatively small magnetic source. The apparatus includes: a target nozzle for injecting a target material; a driver laser for applying a laser beam to the target material to generate plasma; a collector mirror for collecting extreme ultraviolet light radiated from the plasma; and a magnetic field forming unit including at least one magnetic source and at least one magnetic material having two leading end parts projecting from the at least one magnetic source to face each other with a plasma emission point in between, and forming a magnetic field between a trajectory of the target material and the collector mirror.

    摘要翻译: 一种极紫外光源装置,其具有磁场形成单元,该磁场形成单元在使用相对较小的磁源时具有足够的抵抗从等离子体辐射的离子的能力。 该装置包括:用于注射目标材料的目标喷嘴; 用于将激光束施加到目标材料以产生等离子体的驱动激光器; 用于收集从等离子体辐射的极紫外光的收集镜; 以及磁场形成单元,其包括至少一个磁源和至少一个磁性材料,所述至少一个磁性材料具有从所述至少一个磁源突出的两个前端部分,其间具有等离子体发射点,并在其之间形成磁场 目标材料和收集镜的轨迹。

    Chamber apparatus and method of maintaining target supply unit
    8.
    发明授权
    Chamber apparatus and method of maintaining target supply unit 有权
    维护目标供应单位的室内设备和方法

    公开(公告)号:US08497489B2

    公开(公告)日:2013-07-30

    申请号:US13051649

    申请日:2011-03-18

    IPC分类号: G01K5/00

    摘要: A chamber apparatus used with a laser apparatus may include: a chamber provided with at least one inlet for introducing thereinto a laser beam outputted from the laser apparatus; a target supply unit provided to the chamber for supplying a target material to a predetermined region in the chamber; a recovery control unit for instructing the target supply unit to execute recovery operation if a predetermined condition is met; a recovery unit for executing the recovery operation in response to the instruction from the recovery control unit; and a position measuring unit for measuring a position of the target material supplied from the target supply unit into the chamber.

    摘要翻译: 与激光装置一起使用的室装置可以包括:设置有至少一个入口的室,用于将从激光装置输出的激光束引入其中; 目标供给单元,其设置在所述室中,用于将目标材料供应到所述室中的预定区域; 恢复控制单元,用于在满足预定条件时指示目标供应单元执行恢复操作; 恢复单元,用于响应于来自恢复控制单元的指令执行恢复操作; 以及位置测量单元,用于测量从目标供应单元供应到室中的目标材料的位置。

    Extreme ultraviolet light source apparatus
    9.
    发明授权
    Extreme ultraviolet light source apparatus 有权
    极紫外光源设备

    公开(公告)号:US08445876B2

    公开(公告)日:2013-05-21

    申请号:US12603872

    申请日:2009-10-22

    IPC分类号: H01J35/00 G03B27/54

    摘要: An extreme ultraviolet (EUV) light source apparatus in which a location or posture shift of an EUV collector mirror can be detected. The apparatus includes: a chamber; a target supply mechanism for supplying a target material into the chamber; a driver laser for irradiating the target material with a laser beam to generate plasma; a collector mirror having a first focal point and a second focal point, for reflecting light, which is generated at the first focal point, toward the second focal point; a splitter optical element provided in an optical path of the light reflected by the collector mirror, for splitting a part of the light reflected by the collector mirror; and an image sensor provided in an optical path of the light split by the splitter optical element, for detecting a profile of the light split by the splitter optical element.

    摘要翻译: 可以检测EUV收集镜的位置或姿势偏移的极紫外(EUV)光源装置。 该装置包括:一个室; 用于将目标材料供应到所述室中的目标供给机构; 用于用激光束照射目标材料以产生等离子体的驱动器激光器; 收集器反射镜,具有第一焦点和第二焦点,用于将在第一焦点处产生的光朝向第二焦点反射; 分离器光学元件,设置在由集光镜反射的光的光路中,用于分离由集光镜反射的一部分光; 以及图像传感器,其设置在由分离光学元件分离的光的光路中,用于检测由分离光学元件分离的光的轮廓。

    EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS
    10.
    发明申请
    EXTREME ULTRAVIOLET LIGHT GENERATION APPARATUS 有权
    极光紫外线发光装置

    公开(公告)号:US20120217422A1

    公开(公告)日:2012-08-30

    申请号:US13396289

    申请日:2012-02-14

    IPC分类号: G01J3/10

    摘要: An apparatus, configured to generate extreme ultraviolet light by irradiating a target material by a laser beam from a laser apparatus to turn the target material into plasma, includes a chamber with an inlet for introducing the laser beam into the chamber, the chamber including an electrically conductive structural member; and a target generator including an electrode having a first through-hole through which a charged target passes, an electrical insulator for holding the electrode, and a shielding member having a second through-hole, through which the charged target passes, the shielding member being positioned between a plasma generation region and at least the electrical insulator. The target generator generates the charged target of a liquid target material and output the charged target toward the plasma generation region inside the chamber, and the shielding member has electrically conductive properties and is connected electrically to the electrically conductive structural member of the chamber.

    摘要翻译: 一种被配置为通过用来自激光装置的激光束照射目标材料以将目标材料转换成等离子体而产生极紫外光的装置包括具有用于将激光束引入腔室的入口的腔室,该腔室包括电 导电结构件; 以及目标发生器,其包括具有带电对象通过的第一通孔的电极,用于保持电极的电绝缘体和具有第二通孔的屏蔽部件,被充电对象通过该屏蔽部件,所述屏蔽部件为 位于等离子体产生区域和至少电绝缘体之间。 目标发生器产生液体目标材料的充电目标,并将该充电目标输送到室内的等离子体产生区域,并且该屏蔽部件具有导电性能并且与该腔室的导电结构部件电连接。