Patents by Inventor Andrew Lam

Andrew Lam 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: 20160248098
    Abstract: An energy conversion device for conversion of chemical energy into electricity. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous catalyst material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous catalyst material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Application
    Filed: April 15, 2016
    Publication date: August 25, 2016
    Inventors: Jawahar GIDWANI, Arash HAZEGHI, Andrew LAM, Attila HORVATH
  • Publication number: 20160111564
    Abstract: An energy conversion device for conversion of various energy forms into electricity. The energy forms may be chemical, photovoltaic or thermal gradients. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The substrate itself can be planar, two-dimensional, or three-dimensional, and possess internal and external surfaces. These substrates may be rigid, flexible and/or foldable. The porous semiconductor or dielectric layer can be a nano-engineered structure. A porous conductor material is placed on at least a portion of the porous semiconductor or dielectric layer such that at least some of the porous conductor material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 21, 2016
    Applicant: QuSwami, Inc.
    Inventors: Jawahar M. Gidwani, Andrew Lam, Attila Horvath
  • Patent number: 9064960
    Abstract: Methods of selectively and epitaxially forming a silicon-containing material on a substrate surface contained within a process chamber are provided. In one or more embodiments, the pressure in the process chamber is reduced during deposition of material on the substrate and increased during etching of material from the substrate. According to an embodiment, process gases are flowed into the chamber through first zone and a second zone to provide a ratio of the amount of gas flowed to the first zone and the amount of gas flowed to the second zone. In one or more embodiments, the first zone is an inner radial zone and the second zone is an outer radial zone, and ratio of inner zone gas flow to outer zone gas flow is less during deposition than during etching. According to one or more embodiments, the selective epitaxial process includes repeating a cycle of a deposition and then an etching process, and an optional purge until the desired thickness of an epitaxial layer is grown.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: June 23, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Andrew Lam, Yihwan Kim
  • Patent number: 8991332
    Abstract: Systems and apparatus are disclosed for adjusting the temperature of at least a portion of the surface of a reaction chamber during a film formation process to control film properties. More than one portion of the chamber surface may be temperature-modulated.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 31, 2015
    Assignee: Applied Materials, Inc.
    Inventors: Satheesh Kuppurao, David K. Carlson, Manish Hemkar, Andrew Lam, Errol Sanchez, Howard Beckford
  • Publication number: 20140030627
    Abstract: An energy conversion device for conversion of chemical energy into electricity. The energy conversion device has a first and second electrode. A substrate is present that has a porous semiconductor or dielectric layer placed thereover. The porous semconductor or dielectric layer can be a nano-engineered structure. A porous catalyst material is placed on at least a portion of the porous semconductor or dielectric layer such that at least some of the porous catalyst material enters the nano-engineered structure of the porous semiconductor or dielectric layer, thereby forming an intertwining region.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 30, 2014
    Applicant: Quswami, Inc.
    Inventors: Jawahar Gidwani, Arash Hazeghi, Andrew Lam, Attila Horvath
  • Publication number: 20120187238
    Abstract: Improvements in a helicopter with a remote control is presented the helicopter has a stacked main rotor to provide vertical lift and control. A plurality of outrigger rotors provides side-to-side stability as well as allowing the body of the helicopter to tip side-to- side. The helicopter further includes an angled tail rotor to provide angular tip to the helicopter as well as providing forward thrust. The remote control is configured as a single stick design. The single stick design allows a user to control the lift of the helicopter with a trigger control for the speed of the main rotor and thumb controlled joystick provides directional movement. The joystick can also provide a charging station for the helicopter where the batteries and the charging cable can be concealed completely within the controller.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 26, 2012
    Applicant: FUTURE TOYS DESIGN LTD
    Inventor: ANDREW LAM
  • Patent number: 7776698
    Abstract: Methods for formation of epitaxial layers containing n-doped silicon are disclosed, including methods for the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices. Formation of the n-doped epitaxial layer involves exposing a substrate in a process chamber to deposition gases including a silicon source, a carbon source and an n-dopant source at a first temperature and pressure and then exposing the substrate to an etchant at a second higher temperature and a higher pressure than during deposition.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: August 17, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Zhiyuan Ye, Saurabh Chopra, Andrew Lam, Yihwan Kim
  • Patent number: 7772074
    Abstract: Processes for non-selectively forming one or more conformal silicon-containing epitaxial layers on recess corners are disclosed. Specific embodiments pertain to the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices. In specific embodiments, the formation of a non-selective epitaxial layer involves exposing a substrate in a process chamber to deposition gases including a silicon source such as silane and a higher order silane, followed by heating the substrate to promote solid phase epitaxial growth.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 10, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Zhiyuan Ye, Andrew Lam, Saurabh Chopra, Yihwan Kim
  • Patent number: 7718225
    Abstract: Methods are disclosed for adjusting the temperature of at least a portion of the surface of a reaction chamber during a film formation process to control film properties. More than one portion of the chamber surface may be temperature-modulated, and may be accomplished by actively keeping the temperature of a first wall of the reaction chamber above the temperature of a second wall during the film formation process.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: May 18, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Satheesh Kuppurao, David K. Carlson, Manish Hemkar, Andrew Lam, Errol Sanchez, Howard Beckford
  • Publication number: 20090211523
    Abstract: Systems and apparatus are disclosed for adjusting the temperature of at least a portion of the surface of a reaction chamber during a film formation process to control film properties. More than one portion of the chamber surface may be temperature-modulated.
    Type: Application
    Filed: February 27, 2009
    Publication date: August 27, 2009
    Applicant: Applied Materials, Inc.
    Inventors: Satheesh Kuppurao, David K. Carlson, Manish Hemkar, Andrew Lam, Errol Sanchez, Howard Beckford
  • Publication number: 20090104739
    Abstract: Processes for non-selectively forming one or more conformal silicon-containing epitaxial layers on recess corners are disclosed. Specific embodiments pertain to the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices. In specific embodiments, the formation of a non-selective epitaxial layer involves exposing a substrate in a process chamber to deposition gases including a silicon source such as silane and a higher order silane, followed by heating the substrate to promote solid phase epitaxial growth.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 23, 2009
    Inventors: Zhiyuan Ye, Andrew Lam, Saurabh Chopra, Yihwan Kim
  • Publication number: 20090093094
    Abstract: Methods for formation of epitaxial layers containing n-doped silicon are disclosed, including methods for the formation and treatment of epitaxial layers in semiconductor devices, for example, Metal Oxide Semiconductor Field Effect Transistor (MOSFET) devices. Formation of the n-doped epitaxial layer involves exposing a substrate in a process chamber to deposition gases including a silicon source, a carbon source and an n-dopant source at a first temperature and pressure and then exposing the substrate to an etchant at a second higher temperature and a higher pressure than during deposition.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Inventors: Zhiyuan Ye, Saurabh Chopra, Andrew Lam, Yihwan Kim
  • Patent number: 7494545
    Abstract: An epitaxial deposition process including a dry etch process, followed by an epitaxial deposition process is disclosed. The dry etch process involves placing a substrate to be cleaned into a processing chamber to remove surface oxides. A gas mixture is introduced into a plasma cavity, and the gas mixture is energized to form a plasma of reactive gas in the plasma cavity. The reactive gas enters into the processing chamber and reacts with the substrate, forming a thin film. The substrate is heated to vaporize the thin film and expose an epitaxy surface. The epitaxy surface is substantially free of oxides. Epitaxial deposition is then used to form an epitaxial layer on the epitaxy surface.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: February 24, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Andrew Lam, Yihwan Kim, Satheesh Kuppurao, See-Eng Phan, Xinliang Lu, Chien-Teh Kao
  • Publication number: 20080182397
    Abstract: Methods of selectively and epitaxially forming a silicon-containing material on a substrate surface contained within a process chamber are provided. In one or more embodiments, the pressure in the process chamber is reduced during deposition of material on the substrate and increased during etching of material from the substrate. According to an embodiment, process gases are flowed into the chamber through first zone and a second zone to provide a ratio of the amount of gas flowed to the first zone and the amount of gas flowed to the second zone. In one or more embodiments, the first zone is an inner radial zone and the second zone is an outer radial zone, and ratio of inner zone gas flow to outer zone gas flow is less during deposition than during etching. According to one or more embodiments, the selective epitaxial process includes repeating a cycle of a deposition and then an etching process, and an optional purge until the desired thickness of an epitaxial layer is grown.
    Type: Application
    Filed: January 31, 2007
    Publication date: July 31, 2008
    Inventors: Andrew Lam, Yihwan Kim
  • Publication number: 20080026549
    Abstract: A first aspect of the invention provides a method of selectively forming an epitaxial layer on a substrate. The method includes heating the substrate to a temperature of less than about 800° C. and employing both silane and dichlorosilane as silicon sources during epitaxial film formation. Numerous other aspects are provided.
    Type: Application
    Filed: July 30, 2007
    Publication date: January 31, 2008
    Inventors: Yihwan Kim, Andrew Lam
  • Publication number: 20070243254
    Abstract: The present invention is directed to novel drug compositions and dosage forms comprising said drug compositions. The drug compositions of the present invention comprise a pharmaceutical agent and a solubilizing agent. The drug compositions of the present invention are particularly advantageous for use with low solubility and/or low dissolution rate pharmaceutical agents. The present invention is further directed to methods for manufacturing of said drug compositions and dosage forms. The present invention is further directed to methods of treatment comprising administration of said drug compositions and dosage forms.
    Type: Application
    Filed: June 28, 2007
    Publication date: October 18, 2007
    Inventors: David Edgren, Frank Jao, Rhea Kimbel, Padmaja Shivanand, Atul Ayer, Gurdish Bhatti, Andrew Lam, Shu Li, Robert Skluzacek, Winnie To, Patrick Wong, Shaoling Li, Noymi Yam, Sylvia Serofff
  • Publication number: 20070181057
    Abstract: An epitaxial deposition process including a dry etch process, followed by an epitaxial deposition process is disclosed. The dry etch process involves placing a substrate to be cleaned into a processing chamber to remove surface oxides. A gas mixture is introduced into a plasma cavity, and the gas mixture is energized to form a plasma of reactive gas in the plasma cavity. The reactive gas enters into the processing chamber and reacts with the substrate, forming a thin film. The substrate is heated to vaporize the thin film and expose an epitaxy surface. The epitaxy surface is substantially free of oxides. Epitaxial deposition is then used to form an epitaxial layer on the epitaxy surface.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 9, 2007
    Inventors: Andrew Lam, Yihwan Kim, Satheesh Kuppurao, See-Eng Phan, Xinliang Lu, Chien-Teh Kao
  • Publication number: 20070077309
    Abstract: Disclosed are controlled release dosage forms and related methods wherein controlled release of self-dispersing nanoparticle active agent formulations is provided by formulating porous particles into which have been sorbed a self-dispersing nanoparticle active agent formulation.
    Type: Application
    Filed: September 25, 2006
    Publication date: April 5, 2007
    Inventors: Patrick Wong, Andrew Lam
  • Publication number: 20070042117
    Abstract: Methods, systems and apparatus are disclosed for adjusting the temperature of at least a portion of the surface of a reaction chamber during a film formation process to control film properties. More than one portion of the chamber surface may be temperature-modulated.
    Type: Application
    Filed: August 17, 2005
    Publication date: February 22, 2007
    Inventors: Satheesh Kuppurao, David Carlson, Manish Hemkar, Andrew Lam, Errol Sanchez, Howard Beckford
  • Publication number: 20060009041
    Abstract: An assembly comprises a multilayer nitride stack having nitride etch stop layers formed on top of one another, each of the nitride etch stop layers is formed using a film forming process. A method of making the multilayer nitride stack includes placing a substrate in a single wafer deposition chamber and thermally shocking the substrate momentarily prior to deposition. A first nitride etch stop layer is deposited over the substrate. A second nitride etch stop layer is deposited over the first nitride etch stop layer.
    Type: Application
    Filed: July 6, 2004
    Publication date: January 12, 2006
    Inventors: R. Iyer, Andrew Lam, Yuji Maeda, Thomas Mele, Faran Nouri, Jacob Smith, Sean Seutter, Sanjeev Tandon, Randhir Singh Thakur, Sunderraj Thirupapuliyur