Patents by Inventor James Dempster

James Dempster 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: 20160325264
    Abstract: A pyrolysis tube for use with a material deposition system includes a plurality of channels. The channels may be defined by internal elements of the pyrolysis tube, or by internal elements that form an insert for a conventionally configured pyrolysis tube. One or more of the channels may extend straight through the pyrolysis tube, providing a direct line of sight through the pyrolysis tube. Material deposition systems that include such an insert or pyrolysis tube are also disclosed, as are methods for efficiently pyrolyzing precursor materials at temperatures that are reduced relative to conventional pyrolysis temperatures and/or at rates that are increased relative to conventional pyrolysis rates.
    Type: Application
    Filed: July 22, 2016
    Publication date: November 10, 2016
    Inventors: James Dempster, Jason Maynard
  • Patent number: 9333675
    Abstract: Methods for obtaining a profile for a batch, or lot, of a precursor material and using the profile while processing the precursor material to form a polymer are disclosed. In such a method, a process profile that corresponds to the characteristics of a particular precursor material (e.g., the batch, etc.) may be generated. That process profile may then be used to cause a material processing system to process the precursor material in a manner that accounts for differences between that precursor material and a “standard” precursor material, while providing a polymer and, optionally, a film of “standard” quality. Apparatuses and systems that are configured to obtain profile data for a batch of precursor material, generate or modify a process profile based on the profile data and use the process profile to form a polymer are also disclosed.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: May 10, 2016
    Assignee: HZO, INC.
    Inventor: James Dempster
  • Publication number: 20150211115
    Abstract: A pyrolysis tube for use with a material deposition system includes a plurality of channels. The channels may be defined by internal elements of the pyrolysis tube, or by internal elements that form an insert for a conventionally configured pyrolysis tube. One or more of the channels may extend straight through the pyrolysis tube, providing a direct line of sight through the pyrolysis tube. Material deposition systems that include such an insert or pyrolysis tube are also disclosed, as are methods for efficiently pyrolyzing precursor materials at temperatures that are reduced relative to conventional pyrolysis temperatures and/or at rates that are increased relative to conventional pyrolysis rates.
    Type: Application
    Filed: August 12, 2014
    Publication date: July 30, 2015
    Inventors: James Dempster, Jason Maynard
  • Publication number: 20150209825
    Abstract: A material processing system that prevents transmission of infrared radiation from its pyrolysis tube to one or more adjacent elements, such as a vaporization chamber or a deposition chamber, is disclosed. Such a material processing system may include at least one conduit with a non-linear element. The non-linear element of such a conduit may preclude the presence of a line-of-sight through the length of the conduit. The non-linear element may also have a shape that enables gas or vapor to flow therethrough with little or no turbulence, which, in embodiments where part or all of the material processing system lacks valves, enables the gas or vapor to flow freely through the material processing system, or at least through the valveless portion thereof.
    Type: Application
    Filed: January 28, 2015
    Publication date: July 30, 2015
    Inventors: James Dempster, Yang Yun, Max Sorenson
  • Publication number: 20150167151
    Abstract: In various aspects and embodiment, the present disclosure relates to a carrier system for receiving and holding precursor material. The carrier system may be used within a material processing system for forming protecting coatings on a substrate. The carrier system may comprise a carrier including a plurality of receptacles. The carrier system may further include a plurality of cups, each cup configured to be removably positioned with a receptacle of the carrier.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: James Dempster, Jason Maynard
  • Publication number: 20150151453
    Abstract: Methods for obtaining a profile for a batch, or lot, of a precursor material and using the profile while processing the precursor material to form a polymer are disclosed. In such a method, a process profile that corresponds to the characteristics of a particular precursor material (e.g., the batch, etc.) may be generated. That process profile may then be used to cause a material processing system to process the precursor material in a manner that accounts for differences between that precursor material and a “standard” precursor material, while providing a polymer and, optionally, a film of “standard” quality. Apparatuses and systems that are configured to obtain profile data for a batch of precursor material, generate or modify a process profile based on the profile data and use the process profile to form a polymer are also disclosed.
    Type: Application
    Filed: February 12, 2015
    Publication date: June 4, 2015
    Inventor: James Dempster
  • Publication number: 20140335271
    Abstract: A boat according to this disclosure includes side walls and a base that are arranged to define a container with an interior. A bottom of the boat may have a convex configuration. In a specific embodiment, the base may have a convex configuration, such as the shape of a portion of the curved surface of a cylinder, with end walls located at opposite ends of the base. Such a boat may have a crescent configuration. Each boat may be configured to be positioned against another boat, enabling the assembly of groups of boats. Multi-celled structures that receive and effectively increase the surface area of precursor material are also disclosed. A multi-celled structure may be configured for use within the interior of a boat, or individually, without a separate boat.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventors: James Dempster, Jason Maynard
  • Patent number: 7672110
    Abstract: An electrostatic chuck has an electrode embedded in a dielectric which is mounted on a pedestal. The dielectric has a contact surface with an average surface roughness of less than about 0.5 ?m, a surface peak waviness of less than about 0.12 ?m, and a surface peak waviness material ratio of greater than about 20%. The surface texture can be formed by lapping the dielectric surface with a slurry of abrasive particles.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: March 2, 2010
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, James Dempster, Semyon L. Kats, Allen Fox
  • Publication number: 20090087615
    Abstract: Disclosed herein is a gas distribution plate for use in a gas distribution assembly for a processing chamber, where the gas distribution plate is fabricated from a solid yttrium oxide-comprising substrate, which may also include aluminum oxide. The gas distribution plate includes a plurality of through-holes, which are typically crescent-shaped. Through-holes which have been formed in the solid yttrium oxide-comprising substrate by ultrasonic drilling perform particularly well. The solid yttrium oxide-comprising substrate typically comprises at least 99.9% yttrium oxide, and has a density of at least 4.92 g/cm3, a water absorbency of about 0.02% or less, and an average grain size within the range of about 10 ?m to about 25 ?m. Also disclosed herein are methods for fabricating and cleaning the yttrium oxide-comprising gas distribution plate.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 2, 2009
    Inventors: Jennifer Y. Sun, Senh Thach, James Dempster, Li Xu, Thanh N. Pham
  • Patent number: 7479304
    Abstract: Disclosed herein is a gas distribution plate for use in a gas distribution assembly for a processing chamber, where the gas distribution plate is fabricated from a solid yttrium oxide-comprising substrate, which may also include aluminum oxide. The gas distribution plate includes a plurality of through-holes, which are typically crescent-shaped. Through-holes which have been formed in the solid yttrium oxide-comprising substrate by ultrasonic drilling perform particularly well. The solid yttrium oxide-comprising substrate typically comprises at least 99.9% yttrium oxide, and has a density of at least 4.92 g/cm3, a water absorbency of about 0.02% or less, and an average grain size within the range of about 10 ?m to about 25 ?m. Also disclosed herein are methods for fabricating and cleaning the yttrium oxide-comprising gas distribution plate.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: January 20, 2009
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Senh Thach, James Dempster, Li Xu, Thanh N. Pham
  • Publication number: 20070047170
    Abstract: An electrostatic chuck has an electrode embedded in a dielectric which is mounted on a pedestal. The dielectric has a contact surface with an average surface roughness of less than about 0.5 ?m, a surface peak waviness of less than about 0.12 ?m, and a surface peak waviness material ratio of greater than about 20%. The surface texture can be formed by lapping the dielectric surface with a slurry of abrasive particles.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 1, 2007
    Inventors: Jennifer Sun, James Dempster, Semyon Kats, Allen Fox
  • Publication number: 20050056218
    Abstract: Disclosed herein is a gas distribution plate for use in a gas distribution assembly for a processing chamber, where the gas distribution plate is fabricated from a solid yttrium oxide-comprising substrate, which may also include aluminum oxide. The gas distribution plate includes a plurality of through-holes, which are typically crescent-shaped. Through-holes which have been formed in the solid yttrium oxide-comprising substrate by ultrasonic drilling perform particularly well. The solid yttrium oxide-comprising substrate-typically comprises at least 99.9% yttrium oxide, and has a density of at least 4.92 g/cm3, a water absorbency of about 0.02% or less, and an average grain size within the range of about 10 ?m to about 25 ?m. Also disclosed herein are methods for fabricating and cleaning the yttrium oxide-comprising gas distribution plate.
    Type: Application
    Filed: August 13, 2004
    Publication date: March 17, 2005
    Inventors: Jennifer Sun, Senh Thach, James Dempster, Li Xu, Thanh Pham
  • Patent number: D748593
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: February 2, 2016
    Assignee: HZO, INC.
    Inventors: James Dempster, Jason Maynard
  • Patent number: D760180
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: June 28, 2016
    Assignee: HZO, INC.
    Inventors: James Dempster, Jason Maynard
  • Patent number: D763807
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: August 16, 2016
    Assignee: HZO, INC.
    Inventors: James Dempster, Jason Maynard
  • Patent number: D764423
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: August 23, 2016
    Assignee: HZO, INC.
    Inventors: James Dempster, Jason Maynard