Patents by Inventor W. Thomas Novak

W. Thomas Novak has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8094379
    Abstract: A lithographic projection apparatus includes an optical element through which a substrate is exposed with an exposure beam. A space between the optical element and the substrate is filled with liquid during the exposure. A gap is formed between a member and a surface of the optical element through which the exposure beam does not pass. The liquid is supplied to the gap.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: January 10, 2012
    Assignee: Nikon Corporation
    Inventor: W. Thomas Novak
  • Patent number: 8085381
    Abstract: A megasonic immersion lithography exposure apparatus includes an optical transfer chamber for containing an exposure liquid, at least one megasonic plate operably engaging said optical transfer chamber for propagating sonic waves through the exposure liquid, and an optical system provided adjacent to said optical transfer chamber for projecting light through a mask and said exposure liquid and onto a wafer.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: December 27, 2011
    Assignee: Nikon Corporation
    Inventors: Hidemi Kawai, Douglas C Watson, W Thomas Novak
  • Patent number: 8059258
    Abstract: A liquid immersion lithography apparatus includes a projection system having a last element. The projection system projects an image onto a workpiece to expose the workpiece through a liquid filled in a space between the last element and the workpiece. A liquid supply device includes a supply inlet that supplies the liquid from the supply inlet to the space between the workpiece and the last element during the exposure. The last element includes an optical element and a plate. The plate prevents the degradation of the optical element that may be affected by contact with the liquid.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: November 15, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Publication number: 20110235007
    Abstract: A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system that includes a liquid collection member having a permeable member through which a liquid is collected from a surface of an object opposite to the liquid collection member, wherein the permeable member has a plurality of passages that generate a capillary force.
    Type: Application
    Filed: June 2, 2011
    Publication date: September 29, 2011
    Applicant: NIKON CORPORATION
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 8018657
    Abstract: A lithographic projection apparatus includes an optical element through which a substrate is exposed with an exposure beam. A space between the optical element and the substrate is filled with liquid during the exposure. In addition, a gap is formed between a member and a surface, through which the exposure beam does not pass, of the optical element. A suction is provided to the gap.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: September 13, 2011
    Assignee: Nikon Corporation
    Inventor: W. Thomas Novak
  • Patent number: 7969552
    Abstract: A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system that includes a liquid collection member having a wick structure member through which a liquid is collected from a surface of an object opposite to the liquid collection member.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 28, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7965376
    Abstract: A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system that includes a liquid collection member having a permeable member through which a liquid is collected from a surface of an object opposite to the liquid collection member, wherein the permeable member has a plurality of passages that generate a capillary force.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 21, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7932989
    Abstract: A liquid jet and recovery system for an immersion lithography apparatus has arrays of nozzles arranged to have their openings located proximal to an exposure region through which an image pattern is projected onto a workpiece such as a wafer. These nozzles are each adapted to serve selectively either as a source nozzle for supplying a fluid into the exposure region or as a recovery nozzle for recovering the fluid from the exposure region. A fluid controlling device functions to cause nozzles on selected one or more sides of the exposure region to serve as source nozzles and to cause nozzles on selected one or more of the remaining sides to serve as recovery nozzles such that a desired flow pattern can be established for the convenience of immersion lithography.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: April 26, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7929111
    Abstract: A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system that includes a liquid collection member having a mesh member through which a liquid is collected from a surface of an object opposite to the liquid collection member.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 19, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7929110
    Abstract: A lithographic projection apparatus that is arranged to project a pattern from a patterning device onto a substrate using a projection system has a liquid supply system arranged to supply a liquid to a space between the projection system and the substrate. The apparatus also includes a liquid collecting system having a liquid collection member having a liquid-permeable member through which a liquid is collected from a surface of an object opposite to the liquid collection member.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: April 19, 2011
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7889207
    Abstract: An image apparatus (10) for providing an adjusted image (242) of a scene (236) includes a capturing system (16) and a control system (24). The capturing system (16) captures an underexposed first frame (240) that is defined by a plurality of pixels (240A), including a first pixel and a second pixel. The first frame (240) includes at least one of a first texture region (240S) and a second texture region (240T). The control system (24) can analyze information from the pixels (240A) and determine if the first pixel has captured a portion of the first texture region (240S) or the second texture region (240T). Further, the control system (16) can analyze information from the pixels (240A) and to determine if the second pixel has captured a portion of the first texture region (240S) or the second texture region (240T). With this design, the control system (16) can reduce the noise in the first frame (240) to provide a well exposed adjusted image (242).
    Type: Grant
    Filed: February 8, 2007
    Date of Patent: February 15, 2011
    Assignee: Nikon Corporation
    Inventors: Li Hong, Maki Suzuki, Mark Takita, W. Thomas Novak
  • Publication number: 20110031416
    Abstract: A photolithography tool for use in manufacturing semiconductor devices, includes a wafer stage, a lens, and a liquid dispensing assembly by which liquid is introduced between a surface of a semiconductor wafer disposed on the wafer stage and the lens, along a direction away from the semiconductor wafer at its edge.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Applicant: NIKON CORPORATION
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Patent number: 7869000
    Abstract: A stage assembly (220) that moves a work piece (200) along a first axis, along a second axis and along a third axis includes a first stage (238), a first mover assembly (242) that moves the first stage (238) along the first axis, a second stage (240) that retains the work piece (200), a second mover assembly (244), and a non-contact bearing (257). The second mover assembly (244) moves the second stage (240) relative to the first stage (238) along the first axis, along the second axis, and along the third axis. The non-contact bearing (257) supports the mass of the second stage (240). Further, the non-contact bearing (257) allows the second stage (240) to move relative to the first stage (238) along the first axis and along the second axis. The second mover assembly (244) can move the second stage (240) with at least four degrees of movement.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: January 11, 2011
    Assignee: Nikon Corporation
    Inventors: Yoichi Arai, Andrew J. Hazelton, Michael Binnard, W. Thomas Novak, Douglas C. Watson, Kirk Lok
  • Patent number: 7821615
    Abstract: A liquid jet and recovery system for an immersion lithography apparatus has arrays of nozzles arranged to have their openings located proximal to an exposure region through which an image pattern is projected onto a workpiece such as a wafer. These nozzles are each adapted to serve selectively either as a source nozzle for supplying a fluid into the exposure region or as a recovery nozzle for recovering the fluid from the exposure region. A fluid controlling device functions to cause nozzles on selected one or more sides of the exposure region to serve as source nozzles and to cause nozzles on selected one or more of the remaining sides to serve as recovery nozzles such that a desired flow pattern can be established for the convenience of immersion lithography.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 26, 2010
    Assignee: Nikon Corporation
    Inventors: W. Thomas Novak, Andrew J. Hazelton, Douglas C. Watson
  • Publication number: 20100149513
    Abstract: An immersion lithography system compensates for displacement of the final optical element of the optical assembly caused by the immersion fluid. The system includes an optical assembly to project an image defined by a reticle onto a wafer. The optical assembly includes a final optical element spaced from the wafer by a gap. An immersion element supplies an immersion fluid into the gap and recovers any immersion fluid that escapes the gap. A fluid compensation system applies a force to the final optical element of the optical assembly to compensate for pressure variations of the immersion fluid.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 17, 2010
    Applicant: NIKON CORPORATION
    Inventors: Douglas C. Watson, W. Thomas Novak
  • Patent number: 7720371
    Abstract: A camera (210) for providing an adjusted image (214) of a scene (12) includes an apparatus frame (224), an optical assembly (222), a capturing system (226), and a control system (232). The optical assembly (222) is adjustable to alternatively be focused on a first focal area (356A) and a second focal area (356B) that is different than the first focal area (356A). The capturing system (226) captures a first captured image (360A) when the optical assembly (222) is focused at the first focal area (356A) and captures a second captured image (360B) when the optical assembly (222) is focused at the second focal area (356B). The control system (232) provides the adjusted image (214) of the scene (12) based upon the first captured image (360A) and the second captured image (360B). Additionally, the control system (232) can perform object depth extraction of one or more objects (16) (18) (20) in the scene (12).
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: May 18, 2010
    Assignee: Nikon Corporation
    Inventors: Li Hong, Mark Takita, W. Thomas Novak
  • Publication number: 20100091257
    Abstract: A catadioptric optical imaging system and method is provided, in which up to four (4) reticles are imaged to a single imaging location (e.g. for imaging substrates), in a manner designed to provide high throughput, with a relatively high resolution, and with substrates whose size may approach 450 mm.
    Type: Application
    Filed: June 9, 2009
    Publication date: April 15, 2010
    Applicant: Nikon Corporation
    Inventors: David M. Williamson, Daniel G. Smith, Michael B. Binnard, W.Thomas Novak, Eric P. Goodwin
  • Patent number: 7688421
    Abstract: An immersion lithography system that compensating for any displacement of the optical caused by the immersion fluid. The system includes an optical assembly (14) to project an image defined by the reticle (12) onto the wafer (20). The optical assembly includes a final optical element (16) spaced from the wafer by a gap (24). An immersion element (22) is provided to supply an immersion fluid into the gap and to recover any immersion fluid that escapes the gap. A fluid compensation system is provided for the force on the final optical element of the optical assembly caused by pressure variations of the immersion fluid. The resulting force created by the varying pressure may cause final optical element to become displaced. The fluid compensation system is configured to provide a substantially equal, but opposite force on the optical assembly, to prevent the displacement of the final optical element.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: March 30, 2010
    Assignee: Nikon Corporation
    Inventors: Douglas C. Watson, W. Thomas Novak
  • Publication number: 20100053588
    Abstract: A new and useful optical imaging process is provided for imaging of a plurality of substrates, in a manner that makes efficient use of an optical imaging system with the capability to image a single reticle to a pair of imaging locations, and addresses the types of substrate stage movement patterns to accomplish such imaging in an efficient and effective manner. At least three substrates are imaged by moving their substrate stages in patterns whereby (i) two of the substrates are completely imaged at respective imaging locations, (ii) a substrate on at least one of the three stages is partially imaged at one imaging location and then partially imaged at the other imaging location, and (iii) the movement of the stages of the three substrates is configured to avoid movement of the stages of the three substrates in paths that would cause interference between movement of any one substrate stage with movement of any of the other substrate stages.
    Type: Application
    Filed: August 21, 2009
    Publication date: March 4, 2010
    Applicant: Nikon Corporation
    Inventors: Michael B. Binnard, Eric Peter Goodwin, W. Thomas Novak, Daniel Gene Smith
  • Patent number: RE41232
    Abstract: A positioning stage assembly having a coarse stage which includes a planar motor driveable in at least two degrees of freedom, and a fine stage positioned on the coarse stage which is driveable in at least three degrees of freedom with respect to the coarse stage. More preferably, the fine stage is driveable in six degrees of freedom and includes variable reluctance actuators for positioning in three degrees of freedom.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: April 20, 2010
    Assignee: Nikon Corporation
    Inventors: Andrew J. Hazelton, W. Thomas Novak, Akimitsu Ebihara