Patents by Inventor Roger Hamamjy

Roger Hamamjy 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: 20100209620
    Abstract: Embodiments of the invention generally relate to methods for chemical vapor deposition (CVD) processes. In one embodiment, a method for processing a wafer within a vapor deposition reactor is provided which includes heating at least one wafer disposed on a wafer carrier by exposing a lower surface of the wafer carrier to radiation emitted from a lamp assembly and flowing a liquid through a passageway extending throughout the reactor to maintain the reactor lid assembly at a predetermined temperature, such as within a range from about 275° C. to about 325° C. The method further includes traversing the wafer carrier along a wafer carrier track through at least a chamber containing a showerhead assembly and an isolator assembly and another chamber containing a showerhead assembly and an exhaust assembly, and removing gases from the reactor through the exhaust assembly.
    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: 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: 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: 20080102560
    Abstract: A phase change memory including an ovonic threshold switch is formed using a pulsed direct current (DC) deposition chamber using pulsed DC. Pulsed DC is used to deposit a chalcogenide film. Pulsed DC may be also used to deposit a carbon film.
    Type: Application
    Filed: October 10, 2007
    Publication date: May 1, 2008
    Applicant: STMicroelectronics S.r.l.
    Inventors: Roger Hamamjy, Kuo-Wei Chang, Sean Lee, Chong Lim
  • Publication number: 20070227878
    Abstract: A phase change memory including an ovonic threshold switch may be formed with reduced argon in the ovonic threshold switch. The presence of argon adversely impacts the performance of the ovonic threshold switch. Argon concentration can be reduced by depositing the phase change material for the ovonic threshold switch in a relatively low pressure argon environment to enable the argon pressure within said chamber to be reduced.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 4, 2007
    Inventors: Roger Hamamjy, Kuo-Wei Chang, Jason Reid
  • Publication number: 20070166980
    Abstract: Organometallic precursors may be utilized to form titanium silicon nitride films that act as heaters for phase change memories. By using a combination of TDMAT and TrDMASi, for example in a metal organic chemical vapor deposition chamber, a relatively high percentage of silicon may be achieved in reasonable deposition times. Two separate bubblers may be utilized to feed the two organometallic compounds in gaseous form to the deposition chamber so that the relative proportions of the precursors can be readily controlled.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 19, 2007
    Applicant: STMicroelectronics S.r.I.
    Inventors: Jong-Won Lee, Roger Hamamjy
  • Publication number: 20060239800
    Abstract: Radio frequency sputtering of high resistance films may be achieved in a cluster tool. Suitable radio frequency isolation may be utilized to enable RF sputtering in an environment which may sensitive to radio frequency energy.
    Type: Application
    Filed: April 26, 2005
    Publication date: October 26, 2006
    Inventors: Roger Hamamjy, Kuo-Wei Chang, Jong-Won Lee