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).
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Patent number: 9659809Abstract: 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: GrantFiled: June 21, 2016Date of Patent: May 23, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Mehran Behdjat, Aaron Muir Hunter, Joseph M. Ranish, Norman Tam, Jeffrey Tobin, Jiping Li, Martin Tran
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Patent number: 9579750Abstract: 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: GrantFiled: September 14, 2012Date of Patent: February 28, 2017Assignee: Applied Materials, Inc.Inventors: Aaron Muir Hunter, Mehran Behdjat, Bruce E. Adams
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Patent number: 9514969Abstract: 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: GrantFiled: November 21, 2014Date of Patent: December 6, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Aaron Miller, Mehran Behdjat, Norman L. Tam, Michael Liu
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Publication number: 20160300752Abstract: 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: ApplicationFiled: June 21, 2016Publication date: October 13, 2016Inventors: Mehran BEHDJAT, Aaron Muir HUNTER, Joseph M. RANISH, Norman TAM, Jeffrey TOBIN, Jiping LI, Martin TRAN
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Publication number: 20160247708Abstract: 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: ApplicationFiled: May 2, 2016Publication date: August 25, 2016Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
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Patent number: 9385004Abstract: 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: GrantFiled: June 6, 2014Date of Patent: July 5, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Mehran Behdjat, Aaron Muir Hunter, Joseph M. Ranish, Norman Tam, Jeffrey Tobin, Jiping Li, Martin Tran
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Patent number: 9330955Abstract: 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: GrantFiled: March 18, 2014Date of Patent: May 3, 2016Assignee: APPLIED MATERIALS, INC.Inventors: Mehran Behdjat, Norman L. Tam, Aaron Muir Hunter, Joseph M. Ranish, Koji Nakanishi, Toshiyuki Nakagawa
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Publication number: 20160083840Abstract: 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: ApplicationFiled: September 23, 2015Publication date: March 24, 2016Inventors: PREETHAM RAO, Subramani Iyer, Kartik Shah, Mehran Behdjat
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Patent number: 9140647Abstract: 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: GrantFiled: November 17, 2014Date of Patent: September 22, 2015Assignee: APPLIED MATERIALS, INC.Inventors: Joseph M. Ranish, Joseph Johnson, Mehran Behdjat
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Publication number: 20150228528Abstract: 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: ApplicationFiled: January 14, 2015Publication date: August 13, 2015Inventor: Mehran BEHDJAT
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Publication number: 20150187630Abstract: 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: ApplicationFiled: March 18, 2014Publication date: July 2, 2015Applicant: APPLIED MATERIALS, INC.Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
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Publication number: 20150155190Abstract: 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: ApplicationFiled: November 21, 2014Publication date: June 4, 2015Inventors: Aaron MILLER, Mehran BEHDJAT, Norman L. TAM, Michael LIU
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Publication number: 20150070686Abstract: 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: ApplicationFiled: November 17, 2014Publication date: March 12, 2015Inventors: Joseph M. RANISH, Joseph JOHNSON, Mehran BEHDJAT
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Publication number: 20150050819Abstract: 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: ApplicationFiled: June 6, 2014Publication date: February 19, 2015Inventors: Mehran BEHDJAT, Aaron Muir HUNTER, Joseph M. RANISH, Norman TAM, Jeffrey TOBIN, Jiping LI, Martin TRAN
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Publication number: 20150013771Abstract: 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: ApplicationFiled: July 18, 2014Publication date: January 15, 2015Inventors: Efrain Quiles, Mehran Behdjat, Robert B. Lowrance, Michael R. Rice, Brent Vopat
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Patent number: 8915389Abstract: 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: GrantFiled: August 14, 2013Date of Patent: December 23, 2014Assignee: Applied Materials, Inc.Inventors: Shinichi Kurita, Mehran Behdjat, Makoto Inagawa
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Patent number: 8896837Abstract: 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: GrantFiled: June 20, 2013Date of Patent: November 25, 2014Assignee: Applied Materials, Inc.Inventors: Joseph M. Ranish, Joseph Johnson, Mehran Behdjat
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Patent number: 8888916Abstract: 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: GrantFiled: November 22, 2013Date of Patent: November 18, 2014Assignee: 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
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Patent number: 8796589Abstract: 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: GrantFiled: July 13, 2002Date of Patent: August 5, 2014Assignee: Applied Materials, Inc.Inventors: Efrain Quiles, Mehran Behdjat, Robert B. Lowrance, Michael Robert Rice, Brent Vopat
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Patent number: D793526Type: GrantFiled: April 8, 2016Date of Patent: August 1, 2017Assignee: APPLIED MATERIALS, INC.Inventor: Mehran Behdjat