Patents Examined by Michelle Iacoletti
  • Patent number: 8970821
    Abstract: A positioning apparatus includes a stage, a base, a supporting mechanism which is arranged between the stage and the base and supports the stage with a supporting portion having a spring characteristic, an actuator which is arranged between the stage and the base so as to drive the stage, and a controller which controls the actuator so as to reduce a position error of the stage relative to a target position and cancel at least part of a force acting on the stage due to the spring characteristic of the supporting portion, based on the position error of the stage and a variation of a relative position between the stage and the base.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tosiya Asano
  • Patent number: 8953147
    Abstract: An illumination optical apparatus capable of forming a pupil intensity distribution of desired shape and illuminance and, in turn, capable of realizing illumination conditions of great variety. The apparatus has a spatial light modulation unit composed of a first spatial light modulator and a second spatial light modulator arranged in an order of incidence of light, and a distribution forming optical system to form a predetermined light intensity distribution on an illumination pupil, based on a beam having traveled via the first spatial light modulator and the second spatial light modulator. The first spatial light modulator has a plurality of first optical elements which are two-dimensionally arranged and postures of which each are individually controlled. The second spatial light modulator has a plurality of second optical elements which are two-dimensionally arranged in correspondence to the first optical elements and postures of which each are individually controlled.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: February 10, 2015
    Assignee: Nikon Corporation
    Inventor: Kouji Muramatsu
  • Patent number: 8953146
    Abstract: An exposure apparatus is provided with: a conveying device that conveys the subject to be exposed in a given direction; a spatial light modulating device having a plurality of light modulating elements, which are composed of an electro-optical crystalline material and arranged at least in one row in a direction intersecting a conveying direction of the subject to be exposed; an optical beam shaping device that limits the width of light emitted from each light modulating element in the conveying direction to a predetermined width; and a control device that on/off-controls light transmitted through the spatial light modulating device so as to generate a predetermined pattern. The light modulating element is formed tilted by a predetermined angle with respect to an axis parallel to the conveying direction. The control device shifts the optical beam shaping device in the conveying direction.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 10, 2015
    Assignee: V Technology Co., Ltd.
    Inventors: Michinobu Mizumura, Koichiro Fukaya, Tetsuo Ando
  • Patent number: 8947634
    Abstract: An apparatus for supporting an optical element is provided. The apparatus includes a lens cell (1003) and a plurality of fingers (1000) coupled to the lens cell. Each finger includes a base (1012) configured to be coupled to the optical element when mounted therein, first (1006a) and second (1006b) flexures coupled at first respective ends to and extending from the base (1012) at a divergence angle between about 75 and 165 degrees, and a mounting member (1008) configured to couple together second respective ends of the first and second flexures. The mounting member thereby couples the base (1012) to the lens cell (1003).
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: February 3, 2015
    Assignee: ASML Holding N.V.
    Inventors: Windy Lynn Farnsworth, Sohrab Simani
  • Patent number: 8941814
    Abstract: An exemplary device includes first and second portions that are movably connected together by first and second sets, respectively, of multiple blades interleaved with each other at an overlap region. When the overlap region is compressed, displacement of the first and second portions relative to each other is prevented so as to provide relatively high stiffness in first and second orthogonal directions (e.g., z- and y-directions) and relatively low stiffness in a third orthogonal direction (e.g., x-direction). The device can be used in coordination with an actuator, wherein operation of the actuator and compression of the overlap region are automated.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: January 27, 2015
    Assignee: Nikon Corporation
    Inventors: Fardad Hashemi, Christopher S. Margeson, Lorri L. Watson
  • Patent number: 8937704
    Abstract: In an immersion lithography apparatus, the immersion liquid is supplied and removed by a liquid supply system. The immersion lithography apparatus includes a resistivity sensor configured to monitor the electrical resistivity of the immersion liquid to monitor a potential contamination within the liquid supply system and may include a cleaner supply system configured to supply a cleaning fluid to the liquid supply system to clean at least the liquid supply system.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: January 20, 2015
    Assignee: ASML Netherlands B.V.
    Inventors: Jeroen Johannes Sophia Maria Mertens, Christiaan Alexander Hoogendam, Hans Jansen, Patricius Aloysius Jacobus Tinnemans, Leon Joseph Maria Van Den Schoor, Sjoerd Nicolaas Lambertus Donders, Bob Streefkerk
  • Patent number: 8934085
    Abstract: A bundle-guiding optical collector collects an emission of a radiation source and forms a radiation bundle from the collected emission. A reflective surface of the collector is the first bundle-forming surface downstream of the radiation source. The reflective surface is formed such that it converts the radiation source into a family of images in a downstream plane. The family of images includes a plurality of radiation source images which are offset to each other in two dimensions (x, y) in a direction perpendicular to the beam direction of the transformed radiation bundle and are arranged relative to each other in a non-rotationally symmetric manner relative to the beam direction of the transformed radiation bundle. The transformed radiation bundle in the downstream plane has a non-rotationally symmetric bundle edge contour relative to the beam direction of the transformed radiation bundle. The result is a collector in which the radiation bundle shape generated by the collector.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: January 13, 2015
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Udo Dinger, Christopher Weth
  • Patent number: 8913229
    Abstract: A method for controlling a multi-stage system includes a stator extending parallel to a first direction; a first and second stage that are moveable relative to the stator; the stages being provided with a magnet system to generate a magnetic field, and the stator being provided with coils to interact with the magnetic fields to position the stages relative to the stator, the method including: determining the position of the stages; selecting a first and a second subset of coils that are capable of having a non-negligible interaction with the magnetic field of respectively the first and the second stage; activating the coils of both subsets, wherein activating the coils includes determining the coils that are part of both subsets; and excluding a coil that is part of both subsets from activating.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 16, 2014
    Assignee: ASML Netherlands B.V.
    Inventors: Hans Butler, Johannes Petrus Martinus Bernardus Vermeulen
  • Patent number: 8908143
    Abstract: A substrate holder for use in a lithographic apparatus. The substrate holder comprises a main body, a plurality of burls and a heater and/or a temperature sensor. The main body has a surface. The plurality of burls project from the surface and have end surfaces to support a substrate. The heater and/or temperature sensor is provided on the main body surface. The substrate holder is configured such that when a substrate is supported on the end surfaces, a thermal conductance between the heater and/or temperature sensor and the substrate is greater than a thermal conductance between the heater and/or temperature sensor and the main body surface.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: December 9, 2014
    Assignee: ASML Netherlands B.V.
    Inventors: Siegfried Alexander Tromp, Nicolaas Ten Kate, Raymond Wilhelmus Louis Lafarre
  • Patent number: 8867017
    Abstract: A liquid immersion exposure apparatus that exposes a substrate via a projection optical system and liquid includes a movable member having an upper surface, a part of which holds the substrate. A liquid immersion system that has a supply port and a recovery port supplies the liquid to a space between the projection optical system and the upper surface via the supply port of a supply path and recovers the liquid of a liquid immersion region formed in the space via the recovery port of a recovery path. A flow path is connected to the supply path between the supply port and a source of the liquid, the flow path permitting flow therethrough to remove liquid that remains in the supply path, the liquid that remains in the supply path having been supplied from the source of the liquid without being discharged from the supply port.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 21, 2014
    Assignee: Nikon Corporation
    Inventors: Hideaki Hara, Hiroaki Takaiwa, Dai Arai
  • Patent number: 8854599
    Abstract: An exposure apparatus exposes a substrate by projecting an image of a pattern onto the substrate via a projection optical system and a liquid that fills a space between the projection optical system and the substrate. The exposure apparatus has a liquid supply system having a supply path that supplies liquid to the space between the projection optical system and the substrate. A liquid recovery system having a recovery path recovers the liquid from the space during the exposure. The apparatus also includes a suction path with which at least part of the supply path of the liquid supply system is connected when the exposure apparatus functions abnormally.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: October 7, 2014
    Assignee: Nikon Corporation
    Inventors: Hideaki Hara, Hiroaki Takaiwa, Dai Arai
  • Patent number: 8848167
    Abstract: To reduce deformations which may be caused by a functional coating on a substrate in an optical element for UV or EUV lithography, an optical element is suggested comprising a functional coating (46) on a first surface (42) of a substrate (41), wherein the substrate (41) comprises a second surface (43) having a common edge (45) with the first surface (42), and the second surface (43) also has a coating (47) and the thickness t2 and the stress ?2 of the coating (47) on the second surface (33, 43) are chosen such that, in combination with the thickness t1 and the stress ?1 of the functional coating (36, 46) on the first surface (32, 42), the condition t 1 · ? 1 t 2 · ? 2 = X is fulfilled, wherein X has a value between 0.8 and 5.0.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 30, 2014
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Johannes Lippert, Dirk Schaffer
  • Patent number: 8836919
    Abstract: According to one embodiment, a control method for an exposure apparatus is disclosed. The method can include retrieving, from a database, a correction amount of alignment correction at a time of exposure of a wafer and an inclination amount of a wafer stage with respect to an optical axis of an exposure optical system at the time of exposure. The method can include making a determination on the inclination amount based on a predetermined condition. The method can include making a determination on the correction amount based on the predetermined condition. In addition, the method can include issuing an alarm when the inclination amount and the correction amount both satisfy the condition.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 16, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenichi Tsujisawa, Hiroshi Matsushita, Takayoshi Otake, Hideyuki Oishi, Akira Ogawa, Koji Washiyama
  • Patent number: 8817231
    Abstract: In an immersion lithography apparatus in which immersion liquid is supplied to a localized space, the space is substantially polygonal in plan substantially parallel to the substrate. In an embodiment, two corners of the space have a radius of curvature no greater than the width of a transition zone between the space configured to contain liquid and a surrounding configured not to contain liquid.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 26, 2014
    Assignee: ASML Netherlands B.V.
    Inventors: Jacobus Johannus Leonardus Hendricus Verspay, Hans Jansen, Marco Koert Stavenga
  • Patent number: 8817235
    Abstract: A lithographic apparatus is disclosed that includes an illumination system configured to condition a beam of radiation, the illumination system having a Pockels cell arranged to control the polarization of the radiation beam, and an array of individually controllable reflective elements arranged to control the pupil plane distribution of the radiation beam.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: August 26, 2014
    Assignee: ASML Netherlands B.V.
    Inventors: Patricius Aloysius Jacobus Tinnemans, Johannes Jacobus Matheus Baselmans
  • Patent number: 8817225
    Abstract: In one embodiment, a coating and developing apparatus is provided with transfer units, provided between a stack of early-stage processing unit blocks and a stack of later-stage processing unit blocks to transfer a substrate between the transport mechanisms of laterally-adjacent unit blocks, and a vertically-movable auxiliary transfer mechanism for transporting a substrate between the transfer units. A stack of first developing unit blocks is stacked on the stack of early-stage processing unit blocks, and a stack of second developing unit blocks is stacked on the stack of later-stage processing unit blocks.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 26, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Nobuaki Matsuoka, Akira Miyata, Shinichi Hayashi, Suguru Enokida
  • Patent number: 8810775
    Abstract: An EUV mirror module is disclosed that comprises a substrate with a curved upper surface and a curved electroformed mirror. A self-adjusting bonding material is disposed between the substrate and the electroformed mirror. The bonding material is flowable at a melting temperature and self-adjusts to conformally fill the region between substrate to the electroformed mirror and bond the substrate and the electroformed mirror. The substrate may have at least one cooling channel for cooling the mirror module.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: August 19, 2014
    Assignee: Media Lario S.R.L.
    Inventor: Jacques Kools
  • Patent number: 8810934
    Abstract: The present disclosure relates to a method for the production and/or adjustment of an optical arrangement of a projection illumination system, in which at least one actuator is used to set the position of at least one optical element to be manipulated by moving the optical element incrementally with a specific increment size. The increment size of the movement increments is set as a function of the distance of the optical element from the desired position, with the distance being represented by a distance value. If the distance value is above a first threshold value, a substantially constant increment size is set, while the specific increment size decreases as the distance from the desired position decreases if the distance value is below the first threshold value. Alternatively or additionally, a pre-specified deviation from the specific increment size and/or from a pre-specified increment size change rate results in a warning signal and/or ceasing of the movement.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: August 19, 2014
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Karl-Eugen Aubele, Erich Merz, Thorsten Rassel
  • Patent number: 8804098
    Abstract: Example embodiments are directed to a maskless exposure apparatus that generates and/or corrects exposure data using at least one information of intensity information, central position information, focus information, and/or shape information of a plurality of beams acquired using a measurement optical unit, and a control method thereof. The maskless exposure apparatus includes the measurement optical unit including a photo sensor and an image sensor, and a control unit configured to generate and/or correct the exposure data using the information acquired by the measurement optical unit.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Seok Baek, Sang Don Jang, Ho Seok Choi, Hi Kuk Lee, Oui Serg Kim
  • Patent number: 8804100
    Abstract: Method and system for calibrating exposure system for manufacturing of integrated circuits. According to an embodiment, the present invention provides a method for determining one or more focus parameters for an exposure system. As an example, the exposure system is used for forming patterns on semiconductor wafer. The method includes a step for providing a semiconductor wafer. The semiconductor wafer is characterized by a diameter. The method also includes a step for forming a plurality of patterns using the exposure system on the semiconductor wafer. As an example, each of the plurality of patterns being associated with a focus reference value (e.g., focus distance, focus angle, etc.). The method additionally includes a step for determining a plurality of shift profiles, and each of the shift profile is associated one of the plurality of patterns.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: Jiunhau Fu, Cher Huan Tan