Patents Examined by Christina Riddle
  • Patent number: 11281108
    Abstract: An exposure device has a cylindrical peripheral wall member. The peripheral wall member forms a processing space in which a substrate is storable and has an upper opening and a lower opening. Further, a light emitter is provided in an upper portion of the peripheral wall member to close the upper opening. A lower lid member that is provided to be movable in an up-and-down direction and configured to be capable of closing and opening the lower opening is provided below the peripheral wall member. The atmosphere in the processing space is replaced with an inert gas with the substrate stored in the processing space and the lower opening closed by the lower lid member. In this state, vacuum ultraviolet rays are emitted to the substrate from the light emitter, and the substrate is exposed.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: March 22, 2022
    Inventors: You Arisawa, Masaya Asai, Masahiko Harumoto, Yuji Tanaka, Chisayo Mori, Tomohiro Motono, Shuji Miyamoto
  • Patent number: 11274919
    Abstract: A measurement system to be used in a micro-device manufacturing line is equipped with: a plurality of measurement devices which performs measurement processing on each substrate; and a controller that can control the plurality of measurement devices, and the plurality of measurement devices includes at least one first measurement device which acquires position information of a plurality of marks formed on a substrate.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: March 15, 2022
    Assignee: NIKON CORPORATION
    Inventors: Go Ichinose, Yuichi Shibazaki
  • Patent number: 11269260
    Abstract: A method includes using an illumination device to illuminate an object with electromagnetic radiation produced by a radiation source, and using a detector device to capture a respective intensity distribution in a diffraction image produced by the object in a plurality of measurement steps. The measurement steps differ from one another with respect to the illumination setting set by the illumination device. The method also includes determining at least one characteristic variable that is characteristic for the object on the basis of an iteratively performed comparison between the measurement values obtained within the scope of the measurement steps and model-based simulated values. The model-based simulated values are ascertained on the basis of a multiple layer model, in which the object is modeled by a multiple layer structure made of layers that are respectively separated from one another by an interface, wherein a location-dependent reflectivity is assigned to the interfaces.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: March 8, 2022
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Michael Carl, Martin Voelcker
  • Patent number: 11262663
    Abstract: The present invention provides a tubular linear actuator, comprising: a tubular coil assembly comprising multiple tubular coils arranged next to each other in longitudinal direction of the tubular linear actuator and concentric with respect to a longitudinal axis of the tubular linear actuator, and a magnet assembly comprising a series of permanent magnets with alternating polarization direction extending in the longitudinal direction, wherein the magnet assembly is at least partially arranged in the coil assembly and movably with respect to the coil assembly, wherein the tubular coils comprise edge windings.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 1, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Peter Michel Silvester Maria Heijmans, Olof Martinus Josephus Fischer, Maarten Hartger Kimman, Edwin Van Horne, Antonie Hendrik Verweij
  • Patent number: 11249402
    Abstract: A compensator for manipulating a radiation beam traveling along an optical path. The compensator includes a fixed support holding a first optical wedge and an adjustable support holding a second optical wedge. The adjustable support includes a base, a stage holding the second optical wedge, first and second flexures, and a drive block. The stage defines a cavity and is movable relative to the base and the fixed support. The first and second flexures couple the stage to the base such that the stage translates along a stage path. The drive block is disposed in the cavity of the stage and is configured to translate along a drive block path perpendicular to the optical path and perpendicular to the stage path. The drive block includes first and second drive bearing surfaces configured to translate the stage in first and second stage directions, respectively, along the stage path.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: February 15, 2022
    Assignee: ASML Holding N. V.
    Inventors: Ryan Richard Westover, Ryan Walter Roder, Peter Ferenz, David Taub
  • Patent number: 11249028
    Abstract: An apparatus for inspecting object surface according to an embodiment includes: an imaging device including an imaging area; an optical source; and a group of optical devices including a mirror and a lens, and causing a reflected light other than a regular reflection light from an object to be reflected by a mirror surface of the mirror, and to form an image in the imaging area of the imaging device through the lens, the regular reflection light being caused by a light incident to a surface of the object from the optical source, wherein the optical source, the mirror, the lens, and the imaging device are arranged in such a manner that the regular reflection light is not incident to the imaging area of the imaging device through the mirror and the lens.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 15, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahiro Kamikawa, Hiroshi Ohno, Takehiro Hato
  • Patent number: 11243175
    Abstract: A system may include illumination optics to direct an illumination beam to a sample at an off-axis angle, collection optics to collect scattered light from the sample, and a phase mask located at a first pupil plane to provide different phase shifts for light in two or more pupil regions of a collection area to reshape a point spread function of light scattered from one or more particles on a surface of the sample. The system may further include a polarization rotator located at a second pupil plane, where the polarization rotator provides a spatially-varying polarization rotation angle selected to rotate light scattered from the surface of the sample to a selected polarization angle, a polarizer to reject light polarized along the selected polarization angle, and a detector to generate a dark-field image of the sample based on light passed by the polarizer.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: February 8, 2022
    Assignee: KLA Corporation
    Inventors: Xuefeng Liu, Jenn-Kuen Leong, Daniel Kavaldjiev, John Fielden
  • Patent number: 11243476
    Abstract: The invention provides a stage apparatus comprising an object support, a plurality of support members, a gripper and a control unit. The object support comprises a surface for mounting an object on, the surface extending in a plane. The plurality of support members are for supporting the object, and are arranged to receive the object from a gripper and to arrange the object on the surface and/or vice versa. The support members are moveable in at least a first direction which is perpendicular to the plane. The control unit is arranged to receive shape information regarding an out-of-plane-shape of the object, and is arranged to control positions of the support members. The control unit is arranged to tilt the object while supported by the support members by controlling the positions so as to reduce a space consumption of the object in the first direction, based on the shape information.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 8, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Ringo Petrus Cornelis Van Dorst, Gijs Kramer, Benjamin Cunnegonda Henricus Smeets, Mark Johannes Hermanus Frencken
  • Patent number: 11243477
    Abstract: The invention relates to a lithographic apparatus comprising: an actuation system for positioning an object; a control unit (CU) for controlling the actuation system; and a cooling system for cooling the actuation system, wherein the actuation system comprises a coil assembly (CA) including one or more coils (CO) as force generating members, wherein the cooling system comprises cooling element (CE) interacting with the coil assembly for cooling the coil assembly, and wherein the control unit is configured to control a temperature of the one or more coils to keep a magnitude of cyclic stress below a predetermined value.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 8, 2022
    Assignee: ASML Netherlands B.V.
    Inventor: Gudrun Ghilaine Agnes De Gersem
  • Patent number: 11237491
    Abstract: A system comprises a reflective optical element with a reflective surface that is configured to reflect a radiation beam. The reflective optical element also has a body. The system includes a thermal conditioning mechanism operative to thermally induce a deformation of the body under control of a controller. By means of controllably deforming the body, the shape of the reflective surface can be adjusted in a controlled manner.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: February 1, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Ramon Mark Hofstra, Andrey Sergeevich Tychkov, Francois Charles Dominique Deneuville, Gerardus Hubertus Petrus Maria Swinkels, Petrus Adrianus Theodorus Maria Ruijs
  • Patent number: 11231656
    Abstract: A target debris collection device for extreme ultraviolet (EUV) light source apparatus, includes a baffle body extending within an EUV vessel between a collector and an outlet port of the EUV vessel to allow EUV light reflected from the collector to pass through an internal transmissive region thereof, a discharge plate provided in a first end portion of the baffle body adjacent to the collector to collect the target material debris on an inner surface of the baffle body, a guide structure to guide the target material debris collected in the discharge plate to a collection tank, and a first heating member provided in the guide structure to prevent the target material debris from being solidified.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunghyup Kim, Ho Yu, Jeonggil Kim, Minseok Choi
  • Patent number: 11221565
    Abstract: The invention provides a level sensor to measure a position of a surface of a substrate, comprising a projection unit arranged to direct a beam of radiation to the surface of the substrate and a detection unit. The detection unit comprises a detection grating arranged to receive the beam of radiation reflected on the surface of the substrate, one or more detectors, one or more optical elements to direct the beam of radiation from the detection grating to the one or more detectors, and a processing unit to determine the position of the surface of the substrate on the basis of the beam of radiation received by the one or more detectors. The detection grating and the one or more optical elements are integrated in a single integrated optical element.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: January 11, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Simon Reinald Huisman, Marinus Petrus Reijnders
  • Patent number: 11221562
    Abstract: In some embodiments, a reticle structure is provided. The reticle structure includes a reticle stage and a reticle mounted on the reticle stage. The reticle stage includes plural first burls and plural second burls, in which the second burls are disposed on a center of the reticle stage and the first burls disposed on an edge of the reticle stage such that the first burls surround the second burls. The reticle includes a base material and a pattern layer overlying the base material. The base material is secured on the first and second burls of the reticle stage. The pattern layer includes plural first gratings, and each of the first burls is vertically aligned with one of the first gratings.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: January 11, 2022
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chia-Yu Lee, Tao-Hsin Chen, Ching-Juinn Huang, Po-Chung Cheng
  • Patent number: 11204558
    Abstract: An object stage that includes a first structure and a second structure movable relative to the first structure. The second structure is configured to support an object. The object stage also includes a seal plate movably coupled to the first structure or the second structure, but not both. Further, the object stage includes an actuator configured to move the seal plate such that a substantially constant gap is defined between the seal plate and the first structure or second structure that is not coupled to the seal plate.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: December 21, 2021
    Assignees: ASML Netherlands B.V., ASML Holding N.V.
    Inventors: Yang-Shan Huang, Daniel Nathan Burbank, Marco Koert Stavenga
  • Patent number: 11204556
    Abstract: A method of controlling a feedback system with a data matching module of an extreme ultraviolet (EUV) radiation source is disclosed. The method includes obtaining a slit integrated energy (SLIE) sensor data and diffractive optical elements (DOE) data. The method performs a data match, by the data matching module, of a time difference of the SLIE sensor data and the DOE data to identify a mismatched set of the SLIE sensor data and the DOE data. The method also determines whether the time difference of the SLIE sensor data and the DOE data of the mismatched set is within an acceptable range. Based on the determination, the method automatically validates a configurable data of the mismatched set such that the SLIE sensor data of the mismatched set is valid for a reflectivity calculation.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: December 21, 2021
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Yu-Chih Huang, Chi Yang, Che-Chang Hsu, Li-Jui Chen, Po-Chung Cheng
  • Patent number: 11199785
    Abstract: An apparatus includes: a treatment block including treatment modules; and a relay block coupling the treatment block and an exposure apparatus in a width direction, and including a transfer-in/out mechanism for the exposure apparatus. In the treatment block being multilayered in an up-down direction, a transfer mechanism is provided in a transfer region extending in the width direction. In a layer, in the treatment block, at a position accessible from the transfer-in/out mechanism, a deliverer on which the substrate is mounted when the substrate is delivered between the blocks is provided at an end on the relay block side. Pre-exposure storages storing the substrate before the exposure are provided along the width direction in two regions between which the transfer region is interposed in a depth direction. A non-treatment unit is provided at a portion where the pre-exposure storages are not provided in the two regions.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: December 14, 2021
    Assignee: Tokyo Electron Limited
    Inventors: Tsuyoshi Watanabe, Masashi Tsuchiyama, Hiroki Sato, Ippei Hamada
  • Patent number: 11187993
    Abstract: The present invention provides an exposure apparatus including a forming unit configured to form a mark on a resist film on a substrate, and a control unit configured to perform an exposure process to form a latent image by projecting a pattern onto a target position on the resist film on the substrate based on a measured position of the mark, wherein the control unit causes the forming unit to perform a formation process of forming, before the exposure process is performed on a reworked substrate on which a second resist film has been formed after removing a first resist film with a first mark, a second mark on the second resist film so the second mark will be positioned at a position shifted from a position of the first mark on the reworked substrate.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yutaka Matsuda, Kimitoshi Tamaki
  • Patent number: 11187991
    Abstract: A lithographic projection apparatus is disclosed that includes a table, a shutter member, a fluid handling structure, and a fluid extraction system. The fluid handling structure may be configured to supply and confine liquid between a projection system and (i) a substrate, or (ii) the table, or (iii) a surface of the shutter member, or (iv) a combination selected from (i)-(iii). The surface of the shutter member may adjoin and be co-planar with a surface of the table. The surfaces of the shutter member and the table may be spaced apart by a gap. The fluid extraction system may be configured to remove liquid from the gap.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: November 30, 2021
    Assignee: ASML NETHERLANDS B.V.
    Inventors: Christian Gerardus Norbertus Hendricus Marie Cloin, Nicolaas Ten Kate, Nicolaas Rudolf Kemper, Marco Koert Stavenga, Erik Henricus Egidius Catharina Eummelen, Michel Riepen, Olga Vladimirovna Elisseeva, Tijmen Wilfred Mathijs Gunther, Michaƫl Christiaan Van Der Wekken
  • Patent number: 11175595
    Abstract: A method localizes assembly errors during the arrangement and/or the assembly of in particular vibration-isolated structural elements, in particular of components of optical arrangements, preferably of microlithographic projection exposure apparatuses.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: November 16, 2021
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Thomas Niederhausen, Christoph Fetzer
  • Patent number: 11169449
    Abstract: A measuring apparatus for a vacuum chamber capable of accurately measuring physical properties or quantities in the vacuum chamber in an exposure process in real time, and a measuring system including the measuring apparatus are described herein. The measuring apparatus includes: a body having a shape of an exposure mask used in an exposure process; and a measuring element in an interior of the body or on a first surface of the body. When the measuring apparatus is positioned in a vacuum chamber during the exposure process, the measuring apparatus is configured to measure physical properties in the vacuum chamber using the measuring element. The body or the measuring element is configured to withstand a vacuum in the vacuum chamber including resisting or preventing physical deformation of the body or the measuring element due to the vacuum.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 9, 2021
    Inventors: Daesung Jung, Younsok Choi, Jongmin Song, Minho Kang, Sangyoon Soh, Hohyun Lee