Patents by Inventor Joseph M. Ranish

Joseph M. Ranish 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: 10202707
    Abstract: Apparatus for processing a substrate are provided herein. In some embodiments, a lamphead for use in substrate processing includes a monolithic member having a contoured surface; a plurality of reflector cavities disposed in the contoured surface, wherein each reflector cavity is shaped to act as a reflector or to receive a replaceable reflector for a lamp; and a plurality of lamp passages, wherein each lamp passage extends into the monolithic member from one of the plurality of reflector cavities.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: February 12, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Paul Brillhart, Satheesh Kuppurao, Dongming Iu
  • Publication number: 20180345215
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a thermal processing chamber having an interior volume which includes a top portion and a side wall. The apparatus also include a getter assembly comprising a getter configured as a wire disposed in the top portion and extending into the interior volume proximal to the side wall.
    Type: Application
    Filed: July 17, 2017
    Publication date: December 6, 2018
    Inventor: Joseph M. RANISH
  • Patent number: 10147623
    Abstract: Embodiments of the invention generally relate to pyrometry during thermal processing of semiconductor substrates. More specifically, embodiments of the invention relate to a pyrometry filter for a thermal process chamber. In certain embodiments, the pyrometry filter selectively filters selected wavelengths of energy to improve a pyrometer measurement. The pyrometry filter may have various geometries which may affect the functionality of the pyrometry filter.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: December 4, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Bruce E. Adams
  • Patent number: 10132003
    Abstract: Embodiments disclosed herein generally related to a processing chamber, and more specifically a heat modulator assembly for use in a processing chamber. The heat modulator assembly includes a heat modulator housing and a plurality of heat modulators. The heat modulator housing includes a housing member defining a housing plane, a sidewall, and an annular extension. The sidewall extends perpendicular to the housing plane. The annular extension extends outward from the sidewall. The plurality of heat modulators is positioned in the housing member.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: November 20, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Shu-Kwan Lau, Surajit Kumar, Joseph M. Ranish, Zhiyuan Ye, Kartik Shah, Mehmet Tugrul Samir, Errol Antonio C. Sanchez
  • Patent number: 10128197
    Abstract: Embodiments disclosed herein generally relate to methods and apparatus for processing of the bottom surface of a substrate to counteract thermal stresses thereon. Correcting strains are applied to the bottom surface of the substrate which compensate for undesirable strains and distortions on the top surface of the substrate. Specifically designed films may be formed on the back side of the substrate by any combination of deposition, implant, thermal treatment, and etching to create strains that compensate for unwanted distortions of the substrate. Localized strains may be introduced by locally altering the hydrogen content of a silicon nitride film or a carbon film. Structures may be formed by printing, lithography, or self-assembly techniques. Treatment of the layers of film is determined by the stress map desired and includes annealing, implanting, melting, or other thermal treatments.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: November 13, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Aaron Muir Hunter, Swaminathan T. Srinivasan
  • Patent number: 10128144
    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: May 19, 2017
    Date of Patent: November 13, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mehran Behdjat, Aaron Muir Hunter, Joseph M. Ranish, Norman Tam, Jeffrey Tobin, Jiping Li, Martin Tran
  • Publication number: 20180315639
    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: July 6, 2018
    Publication date: November 1, 2018
    Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
  • Patent number: 10083827
    Abstract: Embodiments of the present invention generally relate to simplified, high voltage, tungsten halogen lamps for use as source of heat radiation in a rapid thermal processing (RTP) chamber or other lamp heated thermal processing chambers. Embodiments include a lamp design that includes an external fuse while reducing the number of part and expense of prior art lamps. In addition, embodiments of the lamps described herein provide sufficient rigidity to handle compressive forces of inserting the lamps into a heating assembly base, while maintaining a simplified fuse design.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 25, 2018
    Assignee: Applied Materials, Inc.
    Inventor: Joseph M. Ranish
  • Patent number: 10077508
    Abstract: A method and apparatus for processing a semiconductor substrate is described. The apparatus is a process chamber having an optically transparent upper dome and lower dome. Vacuum is maintained in the process chamber during processing. The upper dome is thermally controlled by flowing a thermal control fluid along the upper dome outside the processing region. Thermal lamps are positioned proximate the lower dome, and thermal sensors are disposed among the lamps. The lamps are powered in zones, and a controller adjusts power to the lamp zones based on data received from the thermal sensors.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 18, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Paul Brillhart, Jose Antonio Marin, Satheesh Kuppurao, Balasubramanian Ramachandran, Swaminathan T. Srinivasan, Mehmet Tugrul Samir
  • Patent number: 10053777
    Abstract: Embodiments described herein provide a substrate processing apparatus that includes a vacuum chamber comprising a first dome and a second dome, a substrate support disposed inside the vacuum chamber between the first and second domes, a collimated energy source arranged in a compartmented housing and positioned proximate the second dome, wherein the second dome is between the collimated energy source and the substrate support. At least a portion of the second dome and the substrate support may be optically transparent to the collimated energy from the collimated energy source.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: August 21, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Aaron Muir Hunter
  • Patent number: 10056286
    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: December 11, 2017
    Date of Patent: August 21, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Mehran Behdjat, Norman L. Tam, Aaron Muir Hunter, Joseph M. Ranish, Koji Nakanishi, Toshiyuki Nakagawa
  • Publication number: 20180211865
    Abstract: A support member for a thermal processing chamber is described. The support member has a sol coating on at least one surface. The sol coating contains a material that blocks a desired wavelength or spectrum of radiation from being transmitted by the material of the support member. The sol coating may be a multi-layer structure that may include adhesion layers, transition layers, and cap layers, in addition to radiation-blocking layers.
    Type: Application
    Filed: March 26, 2018
    Publication date: July 26, 2018
    Inventor: Joseph M. RANISH
  • Publication number: 20180204715
    Abstract: Embodiments of the present disclosure generally relate to an improved adapter for simplified lamps for use as a source of heat radiation in a rapid thermal processing (RTP) chamber. In one embodiment, a lamp assembly is provided. The lamp element includes a capsule having a filament disposed therein, a press seal coupling to the capsule, and an adapter having a receptacle contoured to receive at least a portion of the press seal, wherein the press seal is removably engaged with the adapter.
    Type: Application
    Filed: March 14, 2018
    Publication date: July 19, 2018
    Inventors: Joseph M. Ranish, Oleg V. Serebryanov
  • Patent number: 10026630
    Abstract: Embodiments of the present disclosure generally relate to an improved retention and insulation features for lamps used as a source of heat radiation in a thermal processing chamber. In one embodiment, a process chamber is provided. The process chamber includes a lamp assembly for thermal processing of semiconductor substrates, the lamp assembly has a lamp electrical connector and a first laterally operative element, a lamp assembly housing having a passage for receiving the lamp assembly, a power distribution assembly having a receptacle for receiving the lamp electrical connector and delivering power to the lamp electrical connector, and a spacer plate disposed between the lamp assembly housing and the power distribution assembly, wherein the spacer plate has a passage contoured to allow passage of the lamp electrical connector therethrough, and the spacer plate has a retention feature configured to engage or disengage the first laterally operative element.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: July 17, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Dongming Iu, Joseph M. Ranish, Oleg V. Serebryanov
  • Patent number: 10020204
    Abstract: Embodiments disclosed herein generally relate to methods and apparatus for processing of the bottom surface of a substrate to counteract thermal stresses thereon. Correcting strains are applied to the bottom surface of the substrate which compensate for undesirable strains and distortions on the top surface of the substrate. Specifically designed films may be formed on the back side of the substrate by any combination of deposition, implant, thermal treatment, and etching to create strains that compensate for unwanted distortions of the substrate. In some embodiments, localized strains may be introduced by locally altering the hydrogen content of a silicon nitride film or a carbon film, among other techniques. Structures may be formed by printing, lithography, or self-assembly techniques. Treatment of the layers of film is determined by the stress map desired and includes annealing, implanting, melting, or other thermal treatments.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: July 10, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Aaron Muir Hunter, Swaminathan T. Srinivasan
  • Publication number: 20180138031
    Abstract: Embodiments of the present invention generally relate to chambers and methods of processing substrates therein. The chambers generally include separate process gas and purge gas regions. The process gas region and purge gas region each have a respective gas inlet and gas outlet. The methods generally include positioning a substrate on a substrate support within the chamber. The plane of the substrate support defines the boundary between a process gas region and purge gas region. Purge gas is introduced into the purge gas region through at least one purge gas inlet, and removed from the purge gas region using at least one purge gas outlet. The process gas is introduced into the process gas region through at least one process gas inlet, and removed from the process gas region through at least one process gas outlet. The process gas is thermally decomposed to deposit a material on the substrate.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 17, 2018
    Inventors: Joseph M. RANISH, Paul BRILLHART, Jose Antonio MARIN, Satheesh KUPPURAO, Balasubramanian RAMACHANDRAN, Swaminathan T. SRINIVASAN, Mehmet Tugrul SAMIR
  • Publication number: 20180130653
    Abstract: Embodiments described herein generally relate to apparatus for heating substrates. The apparatus generally include a process chamber having a substrate support therein. A plurality of lamps is positioned to provide radiant energy through an optically transparent dome to a substrate positioned on the substrate support. A light focusing assembly is positioned within the chamber to influence heating and temperature distribution on the substrate and to facilitate formation of a film on a substrate having uniform properties, such as density. The light focusing assembly can include one or more reflectors, light pipes, or refractive lenses.
    Type: Application
    Filed: January 10, 2018
    Publication date: May 10, 2018
    Inventor: Joseph M. RANISH
  • Publication number: 20180099353
    Abstract: A thermal processing apparatus and method in which a first laser source, for example, a CO2 emitting at 10.6 ?m is focused onto a silicon wafer as a line beam and a second laser source, for example, a GaAs laser bar emitting at 808 nm is focused onto the wafer as a larger beam surrounding the line beam. The two beams are scanned in synchronism in the direction of the narrow dimension of the line beam to create a narrow heating pulse from the line beam when activated by the larger beam. The energy of GaAs radiation is greater than the silicon bandgap energy and creates free carriers. The energy of the CO2 radiation is less than the silicon bandgap energy so silicon is otherwise transparent to it, but the long wavelength radiation is absorbed by the free carriers.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Dean JENNINGS, Haifan LIANG, Mark YAM, Vijay PARIHAR, Abhilash J. MAYUR, Aaron Muir HUNTER, Bruce E. ADAMS, Joseph M. RANISH
  • Publication number: 20180102274
    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: December 11, 2017
    Publication date: April 12, 2018
    Inventors: Mehran BEHDJAT, Norman L. TAM, Aaron Muir HUNTER, Joseph M. RANISH, Koji NAKANISHI, Toshiyuki NAKAGAWA
  • Patent number: 9929027
    Abstract: Embodiments described herein generally relate to an improved power distribution assembly for a lamphead assembly used in a thermal processing chamber. In one embodiment, the lamphead assembly includes a plurality of lamps for thermal processing of semiconductor substrates, and a power distribution assembly having a plurality of openings, the power distribution assembly provides power to the plurality of lamps, and each opening is sized to allow passage of the lamp therethough.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: March 27, 2018
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Joseph M. Ranish, Oleg Serebryanov