Patents by Inventor Khurshed Sorabji

Khurshed Sorabji 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: 20100206235
    Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a wafer carrier track for levitating and traversing a wafer carrier within a vapor deposition reactor system is provided which includes upper and lower sections of a track assembly having a gas cavity formed therebetween. A guide path extends along an upper surface of the upper section and between two side surfaces which extend along and above the guide path and parallel to each other. A plurality of gas holes along the guide path extends from the upper surface of the upper section, through the upper section, and into the gas cavity. In some examples, the upper and lower sections of the track assembly may independently contain quartz, and in some examples, may be fused together.
    Type: Application
    Filed: March 16, 2010
    Publication date: August 19, 2010
    Applicant: ALTA DEVICES, INC.
    Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
  • Publication number: 20100133257
    Abstract: Methods and apparatus for rapid thermal processing of a planar substrate including axially aligning the substrate with a substrate support or with an empirically determined position are described. The methods and apparatus include a sensor system that determines the relative orientations of the substrate and the substrate support.
    Type: Application
    Filed: November 4, 2009
    Publication date: June 3, 2010
    Applicant: Applied Materials, Inc.
    Inventors: Khurshed Sorabji, Joseph M. Ranish, Wolfgang Aderhold, Aaron M. Hunger, Blake R. Koelmel, Alexander N. Lerner, Nir Merry
  • Publication number: 20100059497
    Abstract: Embodiments of a lamphead and apparatus utilizing same are provided herein. In some embodiments, a lamphead for use in thermal processing may include a monolithic member having a plurality of coolant passages and a plurality of lamp passages and reflector cavities, wherein each lamp passage is configured to accommodate a lamp and each reflector cavity is shaped to act as a reflector or to receive a replaceable reflector for the lamp, and wherein the plurality of coolant passages are disposed proximate to the plurality of lamp passages; and at least one heat transfer member extending from the monolithic member into each coolant passage. In some embodiments, the lamphead may be disposed in an apparatus comprising a process chamber having a substrate support, wherein the lamphead is positioned to provide energy to the substrate support.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 11, 2010
    Applicant: APPLIED MATERIALS, INC.
    Inventors: JOSEPH M. RANISH, KHURSHED SORABJI, KEDARNATH SANGAM, ALEXANDER LERNER
  • Publication number: 20100008656
    Abstract: Apparatus and methods for thermally processing a substrate are provided. A chamber containing a levitating support assembly configured to position the substrate at different distances from a plate during the heating and cooling of a substrate. In one embodiment a plurality of openings on the surface of the plate are configured to evenly distribute gas across a radial surface of the substrate. The distribution of gas may couple radiant energy not reflected back to the substrate during thermal processing with an absorptive region of the plate to begin the cooling of the substrate. The method and apparatus provided within allows for a controllable and effective means for thermally processing a substrate rapidly.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 14, 2010
    Inventors: KHURSHED SORABJI, Joseph Michael Ranish, Wolfgang Aderhold, Aaron Muir Hunter, Alexander N. Lerner
  • Publication number: 20090325367
    Abstract: Embodiments of the invention generally relate to a chemical vapor deposition system and related method of use. In one embodiment, the system includes a reactor lid assembly having a body, a track assembly having a body and a guide path located along the body, and a heating assembly operable to heat the substrate as the substrate moves along the guide path. The body of the lid assembly and the body of the track assembly are coupled together to form a gap that is configured to receive a substrate. In another embodiment, a method of forming layers on a substrate using the chemical vapor deposition system includes introducing the substrate into a guide path, depositing a first layer on the substrate and depositing a second layer on the substrate, while the substrate moves along the guide path; and preventing mixing of gases between the first deposition step and the second deposition step.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 31, 2009
    Applicant: ALTA DEVICES, INC.
    Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus, Melissa Archer, Harry Atwater, Stewart Sonnenfeldt
  • Publication number: 20090324379
    Abstract: Embodiments of the invention generally relate to a levitating substrate carrier or support. In one embodiment, a substrate carrier for supporting and carrying at least one substrate or wafer is provided which includes a substrate carrier body containing an upper surface and a lower surface, and at least one indentation pocket disposed within the lower surface. In another embodiment, the substrate carrier includes at least open indentation area within the upper surface, and at least two indentation pockets disposed within the lower surface. Each indentation pocket may be rectangular and have four side walls extending substantially perpendicular to the lower surface.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 31, 2009
    Applicant: ALTA DEVICES, INC.
    Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus, Melissa Archer, Harry Atwater, Stewart Sonnenfeldt
  • Publication number: 20090298300
    Abstract: Methods and apparatus for hyperbaric rapid thermal processing of a substrate are described. Methods of processing a substrate in a rapid thermal processing chamber are described that include passing a substrate from outside the chamber through an access port onto a support in the interior region of the processing chamber, closing a port door sealing the chamber, pressurizing the chamber to a pressure greater than 1.5 atmospheres absolute and directing radiant energy toward the substrate. Hyperbaric rapid thermal processing chambers are described which are constructed to withstand pressures greater than at least about 1.5 atmospheres absolute or, optionally, 2 atmospheres of absolute pressure. Processing chambers may include pressure control valves to control the pressure within the chamber.
    Type: Application
    Filed: May 7, 2009
    Publication date: December 3, 2009
    Applicant: Applied Materials, Inc.
    Inventors: Joseph M. Ranish, Khurshed Sorabji, Alexander N. Lerner, Aaron M. Hunter
  • Patent number: 7612491
    Abstract: A lamp assembly adapted for use in a substrate thermal processing chamber to heat the substrate to temperatures up to at least about 1100° C. is disclosed. In one embodiment, the lamp assembly comprises a bulb enclosing at least one radiation generating filament attached to a pair of leads, a lamp base configured to receive the pair of leads, a sleeve having a wall thickness of at least about 0.013 inches and a potting compound having a thermal conductivity greater than about 100 W/(K-m).
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: November 3, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Joseph M. Ranish, Khurshed Sorabji
  • Publication number: 20080280453
    Abstract: Embodiments of the invention contemplate a method, apparatus and system that are used to support, position, and rotate a substrate during processing. Embodiments of the invention may also include a method of controlling the transfer of heat between a substrate and substrate support positioned in a processing chamber. The apparatus and methods described herein remove the need for complex, costly and often unreliable components that would be required to accurately position and rotate a substrate during one or more processing steps, such as an rapid thermal processing (RTP) process, a chemical vapor deposition (CVD) process, a physical vapor deposition (PVD) process, atomic layer deposition (ALD) process, dry etching process, wet clean, and/or laser annealing process.
    Type: Application
    Filed: January 21, 2008
    Publication date: November 13, 2008
    Inventors: Blake KOELMEL, Alexander N. LERNER, Joseph M. RANISH, Kedarnath SANGAM, Khurshed SORABJI
  • Publication number: 20080276864
    Abstract: An apparatus and method for supporting, positioning and rotating a substrate are provided. In one embodiment, a support assembly for supporting a substrate includes an upper base plate and a lower base plate. The substrate is floated on a thin layer of air over the upper base plate. A positioning assembly includes a plurality of air bearing edge rollers or air flow pockets used to position the substrate in a desired orientation inside above the upper base plate. A plurality of slanted apertures or air flow pockets are configured in the upper base plate for flowing gas therethrough to rotate the substrate to ensure uniform heating during processing.
    Type: Application
    Filed: May 9, 2007
    Publication date: November 13, 2008
    Inventors: BLAKE KOELMEL, Alexander N. Lerner, Joseph M. Ranish, Kedarnath Sangam, Khurshed Sorabji
  • Publication number: 20080199162
    Abstract: A lamp assembly adapted for use in a substrate thermal processing chamber to heat the substrate to temperatures up to at least about 1100° C. is disclosed. In one embodiment, the lamp assembly comprises a bulb enclosing at least one radiation generating filament attached to a pair of leads, a lamp base configured to receive the pair of leads, a sleeve having a wall thickness of at least about 0.013 inches and a potting compound having a thermal conductivity greater than about 100 W/(K-m).
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Inventors: Joseph M. Ranish, Khurshed Sorabji
  • Publication number: 20080199163
    Abstract: A lamp assembly for the lamp assembly adapted for use in a substrate thermal processing chamber to heat the substrate to temperatures up to at least about 1100° C. is disclosed. In one embodiment, the lamp assembly comprises a bulb enclosing at least one radiation generating filament attached to a pair of leads, the bulb having an inner surface and an outer surface, a lamp base configured to receive the pair of leads and at least a portion of the bulb having a surface treatment adapted to reflect light away from the lamp base. In another embodiment, a sleeve covers the lamp base, which has a cross-sectional area less than about 1.2 times the cross-sectional area of the bulb.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 21, 2008
    Inventors: Joseph M. Ranish, Khurshed Sorabji
  • Publication number: 20080169282
    Abstract: Apparatus and methods for achieving uniform heating or cooling of a substrate during a rapid thermal process are disclosed. More particularly, apparatus and methods for controlling the temperature of an edge ring supporting a substrate and/or a reflector plate during a rapid thermal process to improve temperature uniformity across the substrate are disclosed, which include a thermal mass or plate adjacent the edge ring to heat or cool the edge ring.
    Type: Application
    Filed: March 25, 2008
    Publication date: July 17, 2008
    Inventors: KHURSHED SORABJI, Alexander N. Lerner, Joseph M. Ranish, Aaron M. Hunter, Bruce Adams, Mehran Behdjat, Rajesh S. Ramanujam
  • Publication number: 20080141556
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Application
    Filed: October 26, 2007
    Publication date: June 19, 2008
    Inventors: KHURSHED SORABJI, Alexander N. Lerner
  • Publication number: 20080142497
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 19, 2008
    Inventors: Khurshed Sorabji, Alexander N. Lerner
  • Patent number: 7378618
    Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 27, 2008
    Assignee: Applied Materials, Inc.
    Inventors: Khurshed Sorabji, Alexander N. Lerner
  • Patent number: 6888104
    Abstract: A substrate support ring has a band having an inner perimeter that at least partially surrounds a periphery of the substrate. The band has a radiation absorption surface. A lip extends radially inwardly from the inner perimeter of the band to support the substrate. The band and lip can be formed from silicon carbide, and the radiation absorption surface can be an oxidized layer of silicon carbide. In one version, the band and lip have a combined thermal mass Tm, and the radiation absorption surface has an absorptivity A and a surface area Sa, such that the ratio (A×Sa)/Tm is from about 4×10?5 m2K/J to about 9×10?4 m2K/J.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: May 3, 2005
    Assignee: Applied Materials, Inc.
    Inventors: Joseph M. Ranish, Aaron Muir Hunter, Balasubramanian Ramachandran, Jallepally Ravi, Sundar Ramamurthy, Vedapuram S. Achutharaman, Khurshed Sorabji