Patents by Inventor Mehran Behdjat

Mehran Behdjat 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: 9659809
    Abstract: Embodiments of the disclosure generally relate to a support cylinder used in a thermal process chamber. In one embodiment, the support cylinder includes a hollow cylindrical body comprising an inner peripheral surface, an outer peripheral surface parallel to the inner peripheral surface, wherein the inner peripheral surface and the outer peripheral surface extend along a direction parallel to a longitudinal axis of the support cylinder, and a lateral portion extending radially from the outer peripheral surface to the inner peripheral surface, wherein the lateral portion comprises a first end having a first beveled portion, a first rounded portion, and a first planar portion connecting the first beveled portion and the first rounded portion, and a second end opposing the first end, the second end having a second beveled portion, a second rounded portion, and a second planar portion connecting the second beveled portion and the second rounded portion.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: May 23, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mehran Behdjat, Aaron Muir Hunter, Joseph M. Ranish, Norman Tam, Jeffrey Tobin, Jiping Li, Martin Tran
  • Patent number: 9579750
    Abstract: The present invention generally relates to a laser processing systems for thermally processing substrates. The laser processing systems include a shield disposed between an energy source of the laser processing system and a substrate which is to be thermally processed. The shield includes an optically transparent window disposed adjacent to a cavity within the shield. The optically transparent window allows annealing energy to pass therethrough and to illuminate the substrate. The shield also includes one or more gas inlets and one or more gas outlets for introducing and removing a purge gas from the cavity within the shield. The purge gas is utilized to remove volatized or ablated components during thermal processing, and to provide a gas of predetermined composition, such as oxygen-free, to the thermally processed area.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 28, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Aaron Muir Hunter, Mehran Behdjat, Bruce E. Adams
  • Patent number: 9514969
    Abstract: Embodiments of the present disclosure provide a cover assembly that includes a cover disposed between a device side surface of a substrate and a reflector plate, which are disposed within a thermal processing chamber. The presence of the cover between the device side surface of a substrate and a reflector plate has many advantages over conventional thermal processing chamber designs, which include an improved temperature uniformity during processing, a reduced chamber down time and an improved cost-of-ownership of the processes performed in the thermal processing chamber. In some configurations, the cover includes two or more ports that are formed therein and are positioned to deliver a gas, from a space formed between the reflector plate and the cover, to desired regions of the substrate during processing to reduce the temperature variation across the substrate.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: December 6, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Aaron Miller, Mehran Behdjat, Norman L. Tam, Michael Liu
  • Publication number: 20160300752
    Abstract: Embodiments of the disclosure generally relate to a support cylinder used in a thermal process chamber. In one embodiment, the support cylinder includes a hollow cylindrical body comprising an inner peripheral surface, an outer peripheral surface parallel to the inner peripheral surface, wherein the inner peripheral surface and the outer peripheral surface extend along a direction parallel to a longitudinal axis of the support cylinder, and a lateral portion extending radially from the outer peripheral surface to the inner peripheral surface, wherein the lateral portion comprises a first end having a first beveled portion, a first rounded portion, and a first planar portion connecting the first beveled portion and the first rounded portion, and a second end opposing the first end, the second end having a second beveled portion, a second rounded portion, and a second planar portion connecting the second beveled portion and the second rounded portion.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventors: Mehran BEHDJAT, Aaron Muir HUNTER, Joseph M. RANISH, Norman TAM, Jeffrey TOBIN, Jiping LI, Martin TRAN
  • Publication number: 20160247708
    Abstract: A support ring for semiconductor processing is provided. The support ring includes a ring shaped body defined by an inner edge and an outer edge. The inner edge and outer edge are concentric about a central axis. The ring shaped body further includes a first side, a second side, and a raised annular shoulder extending from the first side of the ring shaped body at the inner edge. The support ring also includes a coating on the first side. The coating has an inner region of reduced thickness region abutting the raised annular shoulder.
    Type: Application
    Filed: May 2, 2016
    Publication date: August 25, 2016
    Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
  • Patent number: 9385004
    Abstract: Embodiments of the disclosure generally relate to a support cylinder used in a thermal process chamber. In one embodiment, the support cylinder comprises a ring body having an inner peripheral surface and an outer peripheral surface, wherein the ring body comprises an opaque quartz glass material and wherein the ring body is coated with an optical transparent layer. The optical transparent layer has a coefficient of thermal expansion that is substantially matched or similar to the opaque quartz glass material to reduce thermal expansion mismatch that may cause thermal stress under high thermal loads. In one example, the opaque quartz glass material is synthetic black quartz and the optical transparent layer comprises a clear fused quartz material.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: July 5, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mehran Behdjat, Aaron Muir Hunter, Joseph M. Ranish, Norman Tam, Jeffrey Tobin, Jiping Li, Martin Tran
  • Patent number: 9330955
    Abstract: A support ring for semiconductor processing is provided. The support ring includes a ring shaped body defined by an inner edge and an outer edge. The inner edge and outer edge are concentric about a central axis. The ring shaped body further includes a first side, a second side, and a raised annular shoulder extending from the first side of the ring shaped body at the inner edge. The support ring also includes a coating on the first side. The coating has an inner region of reduced thickness region abutting the raised annular shoulder.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: May 3, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mehran Behdjat, Norman L. Tam, Aaron Muir Hunter, Joseph M. Ranish, Koji Nakanishi, Toshiyuki Nakagawa
  • Publication number: 20160083840
    Abstract: Embodiments described herein include a susceptor for semiconductor processing including an oriented graphite plate that may have a thickness of at least 1 mm. The susceptor may have a support member, and the oriented graphite plate may be disposed on the support member. The support member may have a center thermal conduit and an edge thermal conduit, and may be substantially solid between the center thermal conduit and the edge thermal conduit.
    Type: Application
    Filed: September 23, 2015
    Publication date: March 24, 2016
    Inventors: PREETHAM RAO, Subramani Iyer, Kartik Shah, Mehran Behdjat
  • Patent number: 9140647
    Abstract: An apparatus for reflectivity measurement is provided. The apparatus generally measures reflectivity characteristics of a reflective surface, such as a reflective cavity of a light array. The apparatus generally comprises a body defining a volume and a light emitting element disposed outside the volume. A sensor coupled to the body detects light reflected from a reflective surface. Various embodiments provide positioning of the apparatus relative to a light array having a reflective cavity.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: September 22, 2015
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Joseph Johnson, Mehran Behdjat
  • Publication number: 20150228528
    Abstract: Embodiments described herein generally relate to a heated chuck. The chuck includes a first surface and a second surface opposite the first surface. The first surface includes a depression defined by a substantially non-spherical surface. The non-spherical surface is configured to support a concaved substrate and to hold the concaved substrate in a stable manner for processing.
    Type: Application
    Filed: January 14, 2015
    Publication date: August 13, 2015
    Inventor: Mehran BEHDJAT
  • Publication number: 20150187630
    Abstract: A support ring for semiconductor processing is provided. The support ring includes a ring shaped body defined by an inner edge and an outer edge. The inner edge and outer edge are concentric about a central axis. The ring shaped body further includes a first side, a second side, and a raised annular shoulder extending from the first side of the ring shaped body at the inner edge. The support ring also includes a coating on the first side. The coating has an inner region of reduced thickness region abutting the raised annular shoulder.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 2, 2015
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
  • Publication number: 20150155190
    Abstract: Embodiments of the present disclosure provide a cover assembly that includes a cover disposed between a device side surface of a substrate and a reflector plate, which are disposed within a thermal processing chamber. The presence of the cover between the device side surface of a substrate and a reflector plate has many advantages over conventional thermal processing chamber designs, which include an improved temperature uniformity during processing, a reduced chamber down time and an improved cost-of-ownership of the processes performed in the thermal processing chamber. In some configurations, the cover includes two or more ports that are formed therein and are positioned to deliver a gas, from a space formed between the reflector plate and the cover, to desired regions of the substrate during processing to reduce the temperature variation across the substrate.
    Type: Application
    Filed: November 21, 2014
    Publication date: June 4, 2015
    Inventors: Aaron MILLER, Mehran BEHDJAT, Norman L. TAM, Michael LIU
  • Publication number: 20150070686
    Abstract: An apparatus for reflectivity measurement is provided. The apparatus generally measures reflectivity characteristics of a reflective surface, such as a reflective cavity of a light array. The apparatus generally comprises a body defining a volume and a light emitting element disposed outside the volume. A sensor coupled to the body detects light reflected from a reflective surface. Various embodiments provide positioning of the apparatus relative to a light array having a reflective cavity.
    Type: Application
    Filed: November 17, 2014
    Publication date: March 12, 2015
    Inventors: Joseph M. RANISH, Joseph JOHNSON, Mehran BEHDJAT
  • Publication number: 20150050819
    Abstract: Embodiments of the disclosure generally relate to a support cylinder used in a thermal process chamber. In one embodiment, the support cylinder comprises a ring body having an inner peripheral surface and an outer peripheral surface, wherein the ring body comprises an opaque quartz glass material and wherein the ring body is coated with an optical transparent layer. The optical transparent layer has a coefficient of thermal expansion that is substantially matched or similar to the opaque quartz glass material to reduce thermal expansion mismatch that may cause thermal stress under high thermal loads. In one example, the opaque quartz glass material is synthetic black quartz and the optical transparent layer comprises a clear fused quartz material.
    Type: Application
    Filed: June 6, 2014
    Publication date: February 19, 2015
    Inventors: Mehran BEHDJAT, Aaron Muir HUNTER, Joseph M. RANISH, Norman TAM, Jeffrey TOBIN, Jiping LI, Martin TRAN
  • Publication number: 20150013771
    Abstract: In one aspect, a valve assembly adapted to seal an opening in a chamber is disclosed. Valve assembly includes a housing being adapted for coupling to a chamber surface having the opening therein, the housing including a threshold portion positioned adjacent to the chamber opening, the threshold portion having one or more inlets adapted to supply gas to an interior region of the housing adjacent to the chamber opening; and a sealing surface adapted to selectively (1) seal the opening, and (2) retract from the opening so as not to obstruct substrate passage. Numerous other system aspects are provided, as are methods and computer program products in accordance with these and other aspects.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 15, 2015
    Inventors: Efrain Quiles, Mehran Behdjat, Robert B. Lowrance, Michael R. Rice, Brent Vopat
  • Patent number: 8915389
    Abstract: Embodiments disclosed herein relate to a large vacuum chamber body that has been welded together. The chamber body may have a high emissivity coating on at least one surface therein. Due to the large size of the chamber body, the chamber body may be formed by welding several pieces together rather than forging the body from a single piece of metal. The pieces may be welded together at a location spaced from the corner of the body, which may be under the greatest stress during evacuation, to ensure that the weld, which may be the weakest point in the body, does not fail. At least one surface of the chamber body may be coated with a high emissivity coating to aid in heat transfer from incoming, heated substrates. The high emissivity coating may increase substrate throughput by lowering the time that may be needed to reduce the substrate temperature.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: December 23, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Shinichi Kurita, Mehran Behdjat, Makoto Inagawa
  • Patent number: 8896837
    Abstract: An apparatus for reflectivity measurement is provided. The apparatus generally measures reflectivity characteristics of a reflective surface, such as a reflective cavity of a light array. The apparatus generally comprises a body defining a volume and a light emitting element disposed outside the volume. A sensor coupled to the body detects light reflected from a reflective surface. Various embodiments provide positioning of the apparatus relative to a light array having a reflective cavity.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: November 25, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Joseph M. Ranish, Joseph Johnson, Mehran Behdjat
  • Patent number: 8888916
    Abstract: Embodiments of the present invention provide apparatus and method for improving gas distribution during thermal processing. One embodiment of the present invention provides an apparatus for processing a substrate comprising a chamber body defining a processing volume, a substrate support disposed in the processing volume, wherein the substrate support is configured to support and rotate the substrate, a gas inlet assembly coupled to an inlet of the chamber body and configured to provide a first gas flow to the processing volume, and an exhaust assembly coupled to an outlet of the chamber body, wherein the gas inlet assembly and the exhaust assembly are disposed on opposite sides of the chamber body, and the exhaust assembly defines an exhaust volume configured to extend the processing volume.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 18, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Ming-Kuei (Michael) Tseng, Norman L. Tam, Yoshitaka Yokota, Agus S. Tjandra, Robert Navasca, Mehran Behdjat, Sundar Ramamurthy, Kedarnath Sangam, Alexander N. Lerner
  • Patent number: 8796589
    Abstract: In a first aspect, a first substrate processing system is provided that includes (1) a chamber having a plurality of opening through which a substrate may be transported; (2) a substrate carrier opener coupled to a first one of the plurality of openings; (3) a thermal processing chamber coupled to a second one of the plurality of openings; and (4) a wafer handler contained within the chamber, having a substrate clamping blade and a blade adapted to transport high temperature substrates.
    Type: Grant
    Filed: July 13, 2002
    Date of Patent: August 5, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Efrain Quiles, Mehran Behdjat, Robert B. Lowrance, Michael Robert Rice, Brent Vopat
  • Patent number: D793526
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 1, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventor: Mehran Behdjat