公开(公告)号：US07087914B2

公开(公告)日：2006-08-08

申请号：US10803526

申请日：2004-03-17

Applicant: Robert P. Akins ,  Richard L. Sandstrom ,  William N. Partlo ,  Igor V. Fomenkov ,  John Martin Algots ,  Robert N. Jacques ,  Frederick Palenschat ,  Jun Song

Inventor： Robert P. Akins ,  Richard L. Sandstrom ,  William N. Partlo ,  Igor V. Fomenkov ,  John Martin Algots ,  Robert N. Jacques ,  Frederick Palenschat ,  Jun Song

IPC: H01J35/20

CPC classification number: B82Y10/00 ,  G03F7/70033 ,  H05G2/003 ,  H05G2/008

Abstract: An EUV light source apparatus and method are disclosed, which may comprise a pulsed laser providing laser pulses at a selected pulse repetition rate focused at a desired target ignition site; a target formation system providing discrete targets at a selected interval coordinated with the laser pulse repetition rate; a target steering system intermediate the target formation system and the desired target ignition site; and a target tracking system providing information about the movement of target between the target formation system and the target steering system, enabling the target steering system to direct the target to the desired target ignition site. The target tracking system may provide information enabling the creation of a laser firing control signal, and may comprise a droplet detector comprising a collimated light source directed to intersect a point on a projected delivery path of the target, having a respective oppositely disposed light detector detecting the passage of the target through the respective point, or a detector comprising a linear array of a plurality of photo-sensitive elements aligned to a coordinate axis, the light from the light source intersecting a projected delivery path of the target, at least one of the which may comprise a plane-intercept detection device. The droplet detectors may comprise a plurality of droplet detectors each operating at a different light frequency, or a camera having a field of view and a two dimensional array of pixels imaging the field of view. The apparatus and method may comprise an electrostatic plasma containment apparatus providing an electric plasma confinement field at or near a target ignition site at the time of ignition, with the target tracking system providing a signal enabling control of the electrostatic plasma containment apparatus. The apparatus and method may comprise a vessel having and intermediate wall with a low pressure trap allowing passage of EUV light and maintaining a differential pressure across the low pressure trap. The apparatus and method may comprise a magnetic plasma confinement mechanism creating a magnetic field in the vicinity of the target ignition site to confine the plasma to the target ignition site, which may be pulsed and may be controlled using outputs from the target tracking system.

公开(公告)号：US20050205810A1

公开(公告)日：2005-09-22

申请号：US10803526

申请日：2004-03-17

Applicant: Robert Akins ,  Richard Sandstrom ,  William Partlo ,  Igor Fomenkov ,  Thomas Steiger ,  John Algots ,  Norbert Bowering ,  Robert Jacques ,  Frederick Palenschat ,  Jun Song

Inventor： Robert Akins ,  Richard Sandstrom ,  William Partlo ,  Igor Fomenkov ,  Thomas Steiger ,  John Algots ,  Norbert Bowering ,  Robert Jacques ,  Frederick Palenschat ,  Jun Song

IPC: G01J1/00 ,  G03F7/20 ,  H01J65/04 ,  H05G2/00

CPC classification number: B82Y10/00 ,  G03F7/70033 ,  H05G2/003 ,  H05G2/008

Abstract: An EUV light source apparatus and method are disclosed, which may comprise a pulsed laser providing laser pulses at a selected pulse repetition rate focused at a desired target ignition site; a target formation system providing discrete targets at a selected interval coordinated with the laser pulse repetition rate; a target steering system intermediate the target formation system and the desired target ignition site; and a target tracking system providing information about the movement of target between the target formation system and the target steering system, enabling the target steering system to direct the target to the desired target ignition site. The target tracking system may provide information enabling the creation of a laser firing control signal, and may comprise a droplet detector comprising a collimated light source directed to intersect a point on a projected delivery path of the target, having a respective oppositely disposed light detector detecting the passage of the target through the respective point, or a detector comprising a linear array of a plurality of photo-sensitive elements aligned to a coordinate axis, the light from the light source intersecting a projected delivery path of the target, at least one of the which may comprise a plane-intercept detection device. The droplet detectors may comprise a plurality of droplet detectors each operating at a different light frequency, or a camera having a field of view and a two dimensional array of pixels imaging the field of view. The apparatus and method may comprise an electrostatic plasma containment apparatus providing an electric plasma confinement field at or near a target ignition site at the time of ignition, with the target tracking system providing a signal enabling control of the electrostatic plasma containment apparatus. The apparatus and method may comprise a vessel having and intermediate wall with a low pressure trap allowing passage of EUV light and maintaining a differential pressure across the low pressure trap. The apparatus and method may comprise a magnetic plasma confinement mechanism creating a magnetic field in the vicinity of the target ignition site to confine the plasma to the target ignition site, which may be pulsed and may be controlled using outputs from the target tracking system.

公开(公告)号：US20080197297A1

公开(公告)日：2008-08-21

申请号：US11471434

申请日：2006-06-20

Applicant: Robert P. Akins ,  Richard L. Sandstrom ,  William N. Partlo ,  Igor V. Fomenkov ,  Thomas D. Steiger ,  John Martin Algots ,  Norbert Bowering ,  Robert N. Jacques ,  Frederick Palenschat ,  Jun Song

Inventor： Robert P. Akins ,  Richard L. Sandstrom ,  William N. Partlo ,  Igor V. Fomenkov ,  Thomas D. Steiger ,  John Martin Algots ,  Norbert Bowering ,  Robert N. Jacques ,  Frederick Palenschat ,  Jun Song

IPC: G01J3/10

CPC classification number: B82Y10/00 ,  G03F7/70033 ,  H05G2/003 ,  H05G2/008

Abstract: An EUV light source apparatus and method are disclosed, which may comprise a pulsed laser providing laser pulses at a selected pulse repetition rate focused at a desired target ignition site; a target formation system providing discrete targets at a selected interval coordinated with the laser pulse repetition rate; a target steering system intermediate the target formation system and the desired target ignition site; and a target tracking system providing information about the movement of target between the target formation system and the target steering system, enabling the target steering system to direct the target to the desired target ignition site. The target tracking system may provide information enabling the creation of a laser firing control signal, and may comprise a droplet detector comprising a collimated light source directed to intersect a point on a projected delivery path of the target, having a respective oppositely disposed light detector detecting the passage of the target through the respective point, or a detector comprising a linear array of a plurality of photo-sensitive elements aligned to a coordinate axis, the light from the light source intersecting a projected delivery path of the target, at least one of the which may comprise a plane-intercept detection device. The droplet detectors may comprise a plurality of droplet detectors each operating at a different light frequency, or a camera having a field of view and a two dimensional array of pixels imaging the field of view. The apparatus and method may comprise an electrostatic plasma containment apparatus providing an electric plasma confinement field at or near a target ignition site at the time of ignition, with the target tracking system providing a signal enabling control of the electrostatic plasma containment apparatus. The apparatus and method may comprise a vessel having and intermediate wall with a low pressure trap allowing passage of EUV light and maintaining a differential pressure across the low pressure trap. The apparatus and method may comprise a magnetic plasma confinement mechanism creating a magnetic field in the vicinity of the target ignition site to confine the plasma to the target ignition site, which may be pulsed and may be controlled using outputs from the target tracking system.

公开(公告)号：US20060222034A1

公开(公告)日：2006-10-05

申请号：US11095976

申请日：2005-03-31

Applicant: Richard Ujazdowski ,  Richard Ness ,  J. Algots ,  Vladimir Fleurov ,  Frederick Palenschat ,  Walter Gillespie ,  Bryan Moosman ,  Thomas Steiger ,  Brett Smith ,  Thomas McKelvey

Inventor： Richard Ujazdowski ,  Richard Ness ,  J. Algots ,  Vladimir Fleurov ,  Frederick Palenschat ,  Walter Gillespie ,  Bryan Moosman ,  Thomas Steiger ,  Brett Smith ,  Thomas McKelvey

IPC: H01S3/22 ,  H01S3/223

CPC classification number: H01S3/036 ,  H01F3/10 ,  H01F27/22 ,  H01F27/266 ,  H01F38/10 ,  H01S3/0404 ,  H01S3/041 ,  H01S3/097 ,  H01S3/09702 ,  H01S3/225 ,  H01S3/2308

Abstract: A high pulse repetition rate gas discharge laser system pulse power system magnetic reactor may comprise a housing comprising a core containing compartment between an inner wall of the housing, an outer wall and a bottom wall of the housing; a cooling mechanism operative to withdraw heat from the at least one of the inner wall, outer wall and bottom of the housing; at least one two magnetic cores contained within the core containing compartment; a cooling fin disposed between each of the at least two magnetic cores; and a thermal conductivity enhancement mechanism intermediate at least one of each respective cooling fin and each respective core and a respective one of the inner wall, the outer wall or the bottom wall, the thermal conductivity enhancement mechanism comprising a band comprising a plurality of torsion spring or leaf spring elements.

Abstract translation: 高脉冲重复率气体放电激光系统脉冲功率系统磁反应器可以包括壳体，该壳体包括在壳体的内壁，外壁和壳体的底壁之间的容纳核心的隔间; 冷却机构，用于从壳体的内壁，外壁和底部中的至少一个中提取热量; 至少一个两个磁芯包含在所述芯容纳室内; 设置在所述至少两个磁芯中的每一个之间的冷却翅片; 以及在每个相应的冷却翅片和每个相应的芯部以及内壁，外壁或底壁中的相应的一个中的至少一个的热导率增强机构，所述热导率增强机构包括包括多个扭转弹簧 或板簧元件。