Patents by Inventor Steven M. Zuniga

Steven M. Zuniga 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).

  • Publication number: 20230019815
    Abstract: Some implementations of a retaining ring has an inner surface having a first portion formed of multiple planar facets and a second portion that adjoins the first portion along a boundary and includes a frustoconical surface that is sloped downwardly from outside in. Some implementations of the retaining ring have a crenellated or serpentine inner surface, and/or an inner surface with alternating region of different surface properties or different tilt angles.
    Type: Application
    Filed: September 15, 2022
    Publication date: January 19, 2023
    Inventors: Steven Mark Reedy, Simon Yavelberg, Jeonghoon Oh, Steven M. Zuniga, Andrew J. Nagengast, Samuel Chu-Chiang Hsu, Gautam Shashank Dandavate
  • Publication number: 20230010759
    Abstract: A chemical mechanical polishing apparatus includes a platen to support a polishing pad, a carrier head to hold a substrate against a polishing surface of the polishing pad, a motor to generate relative motion between the platen and the carrier head so as to polish an overlying layer on the substrate, an in-situ vibration monitoring system including a light source to emit a light beam and a sensor that receives a reflection of the light beam from a reflective surface of the polishing pad, and a controller configured to detect exposure of an underlying layer due to the polishing of the substrate based on measurements from the sensor of the in-situ pad vibration monitoring system.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 12, 2023
    Inventors: Jeonghoon Oh, Thomas H. Osterheld, Steven M. Zuniga
  • Publication number: 20220410335
    Abstract: A polishing system includes a platen having a top surface to support an annular polishing pad, a carrier head to hold a substrate in contact with the annular polishing pad, a support structure extending above the platen and to which one or more polishing system components are secured, and a support post. The platen is rotatable about an axis of rotation that passes through approximately a center of the platen. The first support post has an upper end coupled to and supporting the support structure and a lower portion that is supported on the platen or that extends through an aperture in the platen.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 29, 2022
    Inventors: Paul D. Butterfield, Thomas H. Osterheld, Jeonghoon Oh, Shou-Sung Chang, Steven M. Zuniga, Fred C. Redeker
  • Patent number: 11511390
    Abstract: A carrier head includes a base assembly, a substrate mounting surface connected to the base assembly, and a plurality of segments disposed circumferentially around the substrate mounting surface to provide a retaining ring to surround a substrate mounted on the substrate mounting surface. An inner surface of each of the plurality of segments is configured to engage the substrate, and each segment of the plurality of segments of the retaining ring is pivotally connected to the base assembly such that a lower portion of each segment of the retaining ring is swingable toward and away from the substrate.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: November 29, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Steven M. Zuniga, Jay Gurusamy, Andrew J. Nagengast
  • Patent number: 11511388
    Abstract: A polishing system includes a platen having a top surface to support an annular polishing pad, a carrier head to hold a substrate in contact with the annular polishing pad, a support structure extending above the platen and to which one or more polishing system components are secured, and a support post. The platen is rotatable about an axis of rotation that passes through approximately a center of the platen. The first support post has an upper end coupled to and supporting the support structure and a lower portion that is supported on the platen or that extends through an aperture in the platen.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: November 29, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Paul D. Butterfield, Thomas H. Osterheld, Jeonghoon Oh, Shou-Sung Chang, Steven M. Zuniga, Fred C. Redeker
  • Publication number: 20220339755
    Abstract: Embodiments herein relate to a retaining ring for use in a polishing process. The retaining ring includes an annular body having an upper surface and a lower surface. An inner surface is connected to the upper surface and the lower surface. The inner surface includes one or more surfaces that are used to retain a substrate during processing. The one or more surfaces have an angle relative to a central axis of the retaining ring. The inner surface also includes a plurality of facets. Channels are disposed within the retaining ring to allow passage of a polishing fluid from an inner surface to an outer surface of the retaining ring disposed opposite of the inner surface.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 27, 2022
    Inventors: Jeonghoon OH, Charles C. GARRETSON, Eric LAU, Andrew NAGENGAST, Steven M. ZUNIGA, Edwin C. SUAREZ, Huanbo ZHANG, Brian J. BROWN
  • Publication number: 20220324081
    Abstract: A chemical mechanical polishing touch-up tool includes a pedestal configured to support a substrate, a plurality of jaws configured to center the substrate on the pedestal, a loading ring to apply pressure to an annular region on a back side of the substrate on the pedestal, a polishing ring to bring a polishing material into contact with an annular region on a front side of the substrate that is aligned with the annular region on the back side of the substrate, and a polishing ring actuator to rotate the polishing ring to cause relative motion between the polishing ring and the substrate.
    Type: Application
    Filed: August 25, 2020
    Publication date: October 13, 2022
    Inventors: Jay Gurusamy, Steven M. Zuniga
  • Publication number: 20220305613
    Abstract: Chemical-mechanical polishing assemblies may include an upper platen characterized by a first surface and a second surface opposite the first surface. The upper platen may define a recess in the second surface of the upper platen. The upper platen may define a flexure between the first surface and the second surface within the recess. The assemblies may include a polishing pad coupled with the first surface of the upper platen. The assemblies may include a plate coupled with the upper platen along the second surface of the upper platen. The plate may define a volume within the recess of the upper platen between the second surface of the upper platen and the plate.
    Type: Application
    Filed: February 16, 2022
    Publication date: September 29, 2022
    Applicant: Applied Materials, Inc.
    Inventors: Steven M. Zuniga, Bum Jick Kim, Jay Gurusamy
  • Patent number: 11453099
    Abstract: Some implementations of a retaining ring has an inner surface having a first portion formed of multiple planar facets and a second portion that adjoins the first portion along a boundary and includes a frustoconical surface that is sloped downwardly from outside in. Some implementations of the retaining ring have a crenellated or serpentine inner surface, and/or an inner surface with alternating region of different surface properties or different tilt angles.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: September 27, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Steven Mark Reedy, Simon Yavelberg, Jeonghoon Oh, Steven M. Zuniga, Andrew J. Nagengast, Samuel Chu-Chiang Hsu, Gautam Shashank Dandavate
  • Publication number: 20220297258
    Abstract: A substrate polishing apparatus includes a processing station including a plurality of polishing platens having a polishing pad thereon, and a substrate support configured to hold a substrate therein, wherein the substrate support is positionable to simultaneously position a substrate supported therein against polishing pads on at least two of the plurality of polishing platens. The processing station can form a standalone polishing system, or be one of at least two processing statins in a polishing tool, where at least one other polishing station includes a polishing platen to support a polishing pad thereon.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 22, 2022
    Inventors: Jeonghoon OH, Steven M. ZUNIGA
  • Publication number: 20220281062
    Abstract: A polishing apparatus includes a support configured to receive and hold a substrate in a plane, a polishing pad affixed to a cylindrical surface of a rotary drum, a first actuator to rotate the drum about a first axis parallel to the plane, a second actuator to bring the polishing pad on the rotary drum into contact with the substrate, and a port for dispensing a polishing liquid to an interface between the polishing pad and the substrate.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 8, 2022
    Inventors: Ekaterina A. Mikhaylichenko, Fred C. Redeker, Brian J. Brown, Chirantha Rodrigo, Steven M. Zuniga, Jay Gurusamy
  • Publication number: 20220281064
    Abstract: A carrier head for holding a substrate in a polishing system includes a housing, an annular body that is vertically movable relative to the housing by an actuator, a first annular membrane secured to extending below the annular body to form at least one lower pressurizable chamber between the first annular membrane and the annular body, and at least one pressure supply line connected to the at least one lower pressurizable chamber. The annular body includes an upper portion and at least one lower post projecting downward from the upper portion, with the at least one lower post located inside the at least one lower pressurizable chamber.
    Type: Application
    Filed: March 1, 2022
    Publication date: September 8, 2022
    Inventors: Steven M. Zuniga, Andrew J. Nagengast, Jay Gurusamy
  • Publication number: 20220266413
    Abstract: A polishing system includes a platen having a top surface to support a main polishing pad. The platen is rotatable about an axis of rotation that passes through approximately the center of the platen. An annular flange projects radially outward from the platen to support an outer polishing pad. The annular flange has an inner edge secured to and rotatable with the platen and vertically fixed relative to the top surface of the platen. The annular flange is vertically deflectable such that an outer edge of the annular flange is vertically moveable relative to the inner edge. An actuator applies pressure to an underside of the annular flange in an angularly limited region, and a carrier head holds a substrate in contact with the polishing pad and is movable to selectively position a portion of the substrate over the outer polishing pad.
    Type: Application
    Filed: February 25, 2021
    Publication date: August 25, 2022
    Inventors: David J. Lischka, Jay Gurusamy, Danielle Loi, Steven M. Zuniga
  • Publication number: 20220258302
    Abstract: A carrier head for a chemical mechanical polishing apparatus includes a carrier body, an outer membrane assembly, an annular segmented chuck, and an inner membrane assembly. The outer membrane assembly is supported from the carrier body and defines a first plurality of independently pressurizable outer chambers. The annular segmented chuck supported below the outer membrane assembly, and includes a plurality of concentric rings that are independently vertically movable by respective pressurizable chambers of the outer membrane assembly. At least two of the rings having passages therethrough to suction-chuck a substrate to the chuck. The inner membrane assembly is supported from the carrier body and is surrounded by an innermost ring of the plurality of concentric rings of the chuck. The inner membrane assembly defines a second plurality of independently pressurizable inner chambers and has a lower surface to contact the substrate.
    Type: Application
    Filed: May 5, 2022
    Publication date: August 18, 2022
    Inventors: Steven M. Zuniga, Jay Gurusamy
  • Publication number: 20220258301
    Abstract: A substrate carrier configured to be attached to a polishing system for polishing a substrate is described herein. The substrate carrier includes a housing including a plurality of load couplings and a retaining ring coupled to the housing. The retaining ring can include an annular body having a central axis, an inner edge facing the central axis of the annular body, the inner edge having a diameter configured to surround a substrate, and an outer edge opposite the inner edge, wherein the plurality of load couplings contact the retaining ring at different radial distances measured from the central axis, and wherein the plurality of load couplings are configured to apply a radially differential force to the retaining ring.
    Type: Application
    Filed: February 18, 2021
    Publication date: August 18, 2022
    Inventors: Steven M. Zuniga, Andrew Nagengast
  • Patent number: 11400560
    Abstract: Embodiments herein relate to a retaining ring for use in a polishing process. The retaining ring includes an annular body having an upper surface and a lower surface. An inner surface is connected to the upper surface and the lower surface. The inner surface includes one or more surfaces that are used to retain a substrate during processing. The one or more surfaces have an angle relative to a central axis of the retaining ring. The inner surface also includes a plurality of facets. Channels are disposed within the retaining ring to allow passage of a polishing fluid from an inner surface to an outer surface of the retaining ring disposed opposite of the inner surface.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 2, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jeonghoon Oh, Charles C. Garretson, Eric Lau, Andrew Nagengast, Steven M. Zuniga, Edwin C. Suarez, Huanbo Zhang, Brian J. Brown
  • Patent number: 11389925
    Abstract: A polishing system is provided, including a carrier with an offset distance. The offset distance allows a shifted carrier head to cover more surface area of the polishing surface. The offset distance effectively provides an additional rotation of the carrier head about the axis, which allows for a greater area traversed on the polishing surface, improving chemical mechanical polishing uniformity on the substrate.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: July 19, 2022
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Steven M. Zuniga, Jay Gurusamy, Bum Jick Kim, Danielle Loi
  • Patent number: 11344991
    Abstract: A carrier head for chemical mechanical polishing includes a base, an actuator, a substrate mounting surface, and a retainer. The retainer includes an inner section and an outer section connected by a flexure. A bottom of the inner section of the retainer provides an inner portion of a lower surface configured to contact a polishing pad. An inner surface of the inner section extends upwardly from an inner edge of the lower surface to circumferentially surround the substrate mounting surface. The inner section of the retainer is positioned to receive a controllable load from the actuator and is vertically movable relative to the base. A bottom of the outer section of the retainer provides an outer portion of the lower surface. The outer section of the retainer is vertically fixed to the base. The inner section of the retainer is vertically movable relative to the outer section of the retainer.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: May 31, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Andrew J. Nagengast, Steven M. Zuniga
  • Publication number: 20220152778
    Abstract: A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portions. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Hung Chih Chen, Steven M. Zuniga, Charles C. Garretson, Douglas R. McAllister, Jian Lin, Stacy Meyer, Sidney P. Huey, Jeonghoon Oh, Trung T. Doan, Jeffrey P. Schmidt, Martin S. Wohlert, Kerry F. Hughes, James C. Wang, Danny Cam Toan Lu, Romain Beau De Lamenie, Venkata R. Balagani, Aden Martin Allen, Michael Jon Fong
  • Publication number: 20220143780
    Abstract: Embodiments of the present disclosure generally relate to chemical mechanical polishing (CMP) systems, and more particular, to modular polishing systems used in the manufacturing of semiconductor devices. In one embodiment, a polishing system includes a first portion having a plurality of polishing stations disposed therein, and a second portion coupled to the first portion, the second portion comprising a substrate cleaning system. The substrate cleaning system comprises a wet-in/dry-out substrate cleaning module comprising a chamber housing which defines a chamber volume. The polishing system further includes a substrate handler located in the second portion, where the substrate handler is positioned to transfer substrates to or from the wet-in/dry-out substrate cleaning module through one or more openings formed in one or more sidewalls of the chamber housing.
    Type: Application
    Filed: March 15, 2021
    Publication date: May 12, 2022
    Inventors: Brian J. BROWN, Ekaterina MIKHAYLICHENKO, Jin JI, Jagan RANGARAJAN, Steven M. ZUNIGA