Patents by Inventor Patrick Kwan

Patrick Kwan 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: 9696630
    Abstract: Lithography apparatus and device manufacturing methods are disclosed in which means are provided for reducing the extent to which vibrations propagate between a first element of a projection system and a second element of a projection system. Approaches disclosed include the use of plural resilient members in series as part of a vibration isolation system, plural isolation frames for separately supporting first and second projection system frames, and modified connection positions for the interaction between the first and second projection system frames and the isolation frame(s).
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: July 4, 2017
    Assignees: ASML Netherlands B.V., Carl Zeiss SMT GMBH
    Inventors: Marc Wilhelmus Maria Van Der Wijst, Hans Butler, Erik Roelof Loopstra, Bernhard Geuppert, Marco Hendrikus Hermanus Oude Nijhuis, Rodolfo Guglielmi Rabe, Yim Bun Patrick Kwan, Dick Antonius Hendrikus Laro
  • Publication number: 20170052453
    Abstract: A semiconductor lithography projection exposure apparatus includes a projection lens which includes a manipulator. The manipulator includes an optical element; a base frame; a sensor frame arranged on the base frame; and a sensor arranged on the sensor frame. The manipulator is configured to correct wavefront aberrations of used optical radiation that pass through the optical element during the operation of the projection lens. The manipulator is arranged directly after an object plane of the apparatus along a path of the used optical radiation. The sensor is configured to measure a deformation or a deflection of the optical element. A coefficient of thermal expansion of the sensor frame is within 16 ppm/K of a coefficient of thermal expansion of the base frame.
    Type: Application
    Filed: November 7, 2016
    Publication date: February 23, 2017
    Inventors: Peter Deufel, Johannes Lippert, Pascal Marsollek, Jasper Wesselingh, Yim-Bun Patrick Kwan
  • Patent number: 9551940
    Abstract: The invention relates to a lens comprising several optical elements that are disposed in a lens housing. At least one sensor array encompassing at least one capacitive sensor unit and/or at least one inductive sensor unit is provided for determining the relative position between a first optical element and a second optical element or between a load-bearing structural element of the lens and a second optical element.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: January 24, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Yim-Bun Patrick Kwan
  • Publication number: 20170017164
    Abstract: Optical modules used in exposure processes, in particular to optical modules of microlithography systems, are disclosed. Methods for deforming an optical element of an optical module as well as to optical imaging arrangements, optical imaging of methods and a method of manufacturing an optical element, are also disclosed. The disclosed technology may be used in the context of photolithography processes for fabricating microelectronic devices, in particular semiconductor devices, or in the context of fabricating devices, such as masks or reticles, used during such photolithography processes.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Inventor: Yim-Bun Patrick Kwan
  • Patent number: 9535336
    Abstract: A microlithographic projection exposure apparatus has a mirror array having a base body and a plurality of mirror units. Each mirror unit includes a mirror and a solid-state articulation, which has at least one articulation part that connects the mirror to the base body. A control device makes it possible to modify the alignment of the respective mirror relative to the base body. Mutually opposing surfaces of the mirror and of the base body, or of a mirror support body connected to it, are designed as corresponding glide surfaces of a sliding bearing.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: January 3, 2017
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Sascha Bleidistel, Yim-Bun Patrick Kwan, Florian Bach, Daniel Benz, Severin Waldis, Armin Werber
  • Publication number: 20160349623
    Abstract: A vibration-compensated optical system for a lithography apparatus includes an optical element, a carrying element, an actuator for actuating the optical element relative to the carrying element, a first elastic element which directly couples the optical element to the carrying element, a reaction mass, and a second elastic element. The actuator couples the optical element to the reaction mass. The second elastic element directly couples the reaction mass to the carrying element. For a mass (m1) of the optical element, a stiffness (k1) of the first elastic element, a mass (m2) of the reaction mass and a stiffness (k2) of the second elastic element the following holds true: m 1 m 2 = k 1 k 2 .
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventors: Yim-Bun Patrick Kwan, Tim Groothuijsen
  • Patent number: 9477092
    Abstract: An optical imaging arrangement includes an optical projection unit and a control device. The optical projection unit includes a support structure and a group of optical element units adapted to transfer, in an exposure process using exposure light along an exposure light path, an image of a pattern of a mask unit onto a substrate of a substrate unit. The group of optical element units includes a first optical element unit and a plurality of second optical element units, the first optical element unit and the second optical element units, under a control by the control device, being actively supported by the support structure.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 25, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Yim-Bun Patrick Kwan
  • Publication number: 20160282724
    Abstract: The invention relates to an optical imaging device, in particular an objective 1 for microlithography in the field of EUVL for producing semiconductor components, having a beam path 2, a plurality of optical elements 3 and a diaphragm device 7 with an adjustable diaphragm opening shape. The diaphragm device has a diaphragm store 7a, 7b with a plurality of different diaphragm openings 6 with fixed shapes in each case, which can be introduced into the beam path 2.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 29, 2016
    Inventors: Hermann Bieg, Marcus Will, Thomas Bischoff, Yim-Bun Patrick Kwan, Uy-Liem Nguyen, Stefan Xalter, Michael Muehlbeyer
  • Publication number: 20160266502
    Abstract: Microlithographic illumination system includes individually drivable elements to variably illuminate a pupil surface of the system. Each element deviates an incident light beam based on a control signal applied to the element. The system also includes an instrument to provide a measurement signal, and a model-based state estimator configured to compute, for each element, an estimated state vector based on the measurement signal. The estimated state vector represents: a deviation of a light beam caused by the element; and a time derivative of the deviation. The illumination system further includes a regulator configured to receive, for each element: a) the estimated state vector; and b) target values for: i) the deviation of the light beam caused by the deviating element; and ii) the time derivative of the deviation.
    Type: Application
    Filed: December 15, 2015
    Publication date: September 15, 2016
    Inventors: Stefan Xalter, Yim-Bun Patrick Kwan, Andras G. Major, Manfred Maul, Johannes Eisenmenger, Damian Fiolka, Jan Horn, Markus Deguenther, Florian Bach, Michael Patra, Johannes Wangler, Michael Layh
  • Patent number: 9436101
    Abstract: An optical arrangement includes at least one optical element and a support element for the optical element. The optical element and the support element are connected together by way of at least three decoupling elements. The decoupling elements are formed monolithically with the optical element and with the support element.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 6, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Armin Schoeppach, Hans-Juergen Mann, Frank Eisert, Yim-Bun Patrick Kwan
  • Publication number: 20160195818
    Abstract: A projection lens of an EUV-lithographic projection exposure system with at least two reflective optical elements each comprising a body and a reflective surface for projecting an object field on a reticle onto an image field on a substrate if the projection lens is exposed with an exposure power of EUV light, wherein the bodies of at least two reflective optical elements comprise a material with a temperature dependent coefficient of thermal expansion which is zero at respective zero cross temperatures, and wherein the absolute value of the difference between the zero cross temperatures is more than 6K.
    Type: Application
    Filed: March 15, 2016
    Publication date: July 7, 2016
    Inventors: Norman Baer, Ulrich Loering, Oliver Natt, Gero Wittich, Timo Laufer, Peter Kuerz, Guido Limbach, Stefan Hembacher, Holger Walter, Yim-Bun-Patrick Kwan, Markus Hauf, Franz-Josef Stickel, Jan Van Schoot
  • Patent number: 9383544
    Abstract: An optical system for semiconductor lithography including a plurality of optical components, as well as related components and methods, are disclosed. The apparatus can include an optical component that can be moved by a distance along a straight line within a time of between 5 ms and 500 ms. The straight line can have a polar and azimuth angle of between 0° and 90°, and a distance between the straight line and an optical axis of the apparatus being less than a cross-sectional dimension of a projection exposure beam bundle of the projection exposure apparatus. The apparatus can also include a guide unit configured to guide the optical component.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: July 5, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Frank Melzer, Yim-Bun Patrick Kwan, Stefan Xalter, Damian Fiolka
  • Patent number: 9366976
    Abstract: A reflective optical element includes a body with a first reflective surface of a high precision geometrical form, which can be used for reflecting light in a wavelength range less than 50 nm in an EUV-lithographic projection exposure system. The body includes first and a second non-reflecting surfaces. Further, the body includes a single connection area formed on the first non-reflecting surface with at least one fixation surface inside the connection area for fixing the entire optical element directly or indirectly to at least one bearing surface of a bearing element. The second non-reflecting surface is different from the single connection area formed on the first non-reflective surface. The second non-reflecting surface at least partly surrounds the single connection area. At least one stress relief recess is formed into the body. The stress relief recess at least partly separates the first non-reflective surface from the second non-reflecting surface.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: June 14, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventor: Yim-Bun Patrick Kwan
  • Patent number: 9316929
    Abstract: A projection lens of an EUV-lithographic projection exposure system with at least two reflective optical elements each comprising a body and a reflective surface for projecting an object field on a reticle onto an image field on a substrate if the projection lens is exposed with an exposure power of EUV light, wherein the bodies of at least two reflective optical elements comprise a material with a temperature dependent coefficient of thermal expansion which is zero at respective zero cross temperatures, and wherein the absolute value of the difference between the zero cross temperatures is more than 6K.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: April 19, 2016
    Assignees: Carl Zeiss SMT GmbH, ASML Netherlands B.V.
    Inventors: Norman Baer, Ulrich Loering, Oliver Natt, Gero Wittich, Timo Laufer, Peter Kuerz, Guido Limbach, Stefan Hembacher, Holger Walter, Yim-Bun-Patrick Kwan, Markus Hauf, Franz-Josef Stickel, Jan Van Schoot
  • Patent number: 9316930
    Abstract: An optical arrangement has a plurality of optical elements capable of transmitting a beam. A partial housing is provided which extends from a surface of an optical element in the direction of the beam emanating from the optical element, or of the beam incident on the optical element, and whose shape is adapted to the shape of the beam. The partial housing is surrounded at least partially by a measurement structure which is mechanically decoupled therefrom. The measurement structure has at least one sensor.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: April 19, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Yim-Bun Patrick Kwan, Stefan Xalter
  • Patent number: 9298111
    Abstract: An optical arrangement includes a multiplicity of optical elements and a carrier structure which carries the optical elements. The carrier structure is composed of at least two releasably interconnected modules. Each module is composed of at least one carrier structure subelement. A subhousing is produced by a multiplicity of carrier structure subelements and/or modules. The subhousing has a geometry that varies, at least in regions, in correspondence to a usable beam path in the projection exposure apparatus, the usable beam path being defined as an envelope of all light bundles which can propagate from all field points in a field plane to an image plane of the projection exposure apparatus. A projection exposure apparatus for EUV lithography includes such an optical arrangement.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 29, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Viktor Kulitzki, Bernhard Gellrich, Stefan Xalter, Yim-Bun Patrick Kwan, Peter Deufel, Andreas Wurmbrand
  • Publication number: 20160041473
    Abstract: The invention relates to a lens comprising several optical elements that are disposed in a lens housing. At least one sensor array encompassing at least one capacitive sensor unit and/or at least one inductive sensor unit is provided for determining the relative position between a first optical element and a second optical element or between a load-bearing structural element of the lens and a second optical element.
    Type: Application
    Filed: July 10, 2015
    Publication date: February 11, 2016
    Inventor: Yim-Bun Patrick Kwan
  • Patent number: 9239229
    Abstract: Microlithographic illumination system includes individually drivable elements to variably illuminate a pupil surface of the system. Each element deviates an incident light beam based on a control signal applied to the element. The system also includes an instrument to provide a measurement signal, and a model-based state estimator configured to compute, for each element, an estimated state vector based on the measurement signal. The estimated state vector represents: a deviation of a light beam caused by the element; and a time derivative of the deviation. The illumination system further includes a regulator configured to receive, for each element: a) the estimated state vector; and b) target values for: i) the deviation of the light beam caused by the deviating element; and ii) the time derivative of the deviation.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 19, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Stefan Xalter, Yim-Bun Patrick Kwan, Andras G. Major, Manfred Maul, Johannes Eisenmenger, Damian Fiolka, Jan Horn, Markus Deguenther, Florian Bach, Michael Patra, Johannes Wangler, Michael Layh
  • Publication number: 20160004170
    Abstract: Lithography apparatus and device manufacturing methods are disclosed in which means are provided for reducing the extent to which vibrations propagate between a first element of a projection system and a second element of a projection system. Approaches disclosed include the use of plural resilient members in series as part of a vibration isolation system, plural isolation frames for separately supporting first and second projection system frames, and modified connection positions for the interaction between the first and second projection system frames and the isolation frame(s).
    Type: Application
    Filed: September 14, 2015
    Publication date: January 7, 2016
    Applicants: ASML Netherlands B.V., Carl Zeiss SMT GmbH
    Inventors: Marc Wilhelmus Maria VAN DER WIJST, Hans Butler, Erik Roelof Loopstra, Bernhard Geuppert, Marco Hendrikus Hermanus Oude Nijhuis, Rodolfo Guglielmi Rabe, Yim Bun Patrick Kwan, Dick Antonius Hendrikus Laro
  • Publication number: 20150368020
    Abstract: A pouch for enclosing a case containing a collectible item is provided, in which the case contains a label along an edge of the case. The pouch includes a window formed on the pouch and positioned such that the label is visible through the window when the case is enclosed within the pouch. A plurality of pouches containing cases may be stored adjacent one another, with the labels being visible through the windows.
    Type: Application
    Filed: June 23, 2014
    Publication date: December 24, 2015
    Inventors: Patrick Kwan, Darren Phillip Adams