Patents by Inventor Stephen Moffatt

Stephen Moffatt 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: 20170345693
    Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for visual lamp failure detection in a processing chamber, such as an RTP chamber. Visual feedback is facilitated through the use of a wide-angle lens positioned to view lamps within the process chamber. The wide-angle lens is positioned within a probe and secured using a spring in order to withstand high temperature processing. A camera coupled to the lens is adapted to capture an image of the lamps within the process chamber. The captured image of the lamps is then compared to a reference image to determine if the lamps are functioning as desired.
    Type: Application
    Filed: August 14, 2017
    Publication date: November 30, 2017
    Inventors: Kim VELLORE, Dinesh KANAWADE, Stephen MOFFATT, Aaron MILLER, Leonid M. TERTITSKI, Norman L. TAM, Michael LIU, Colin FOX
  • Publication number: 20170306474
    Abstract: A method of fabricating an electrochemical device in an apparatus may comprise: providing an electrochemical device substrate; depositing a device layer over the substrate; applying electromagnetic radiation to the device layer in situ to effect one or more of surface restructuring, recrystallization and densification of the device layer; repeating the depositing and the applying until a desired device layer thickness is achieved. Furthermore, the applying may be during the depositing. A thin film battery may comprise: a substrate; a current collector on the substrate; a cathode layer on the current collector; an electrolyte layer on the cathode layer; and a lithium anode layer on the electrolyte layer; wherein the LLZO electrolyte layer has a crystalline phase, no shorts due to cracks in the LLZO electrolyte layer, and no highly resistive interlayer at the interface between the electrolyte layer and the cathode layer.
    Type: Application
    Filed: November 2, 2015
    Publication date: October 26, 2017
    Inventors: Byung-Sung Leo KWAK, Stephen MOFFATT
  • Publication number: 20170271131
    Abstract: Implementations described herein provide apparatus and methods for laser-assisted deposition of films while forming electronic devices. In one implementation, a method for depositing a layer on one or more substrates is provided. The method comprises flowing a deposition precursor gas across a surface of the one or more substrates disposed within a processing volume of a processing chamber, thermally activating the deposition precursor gas to deposit a material layer on the surface of the one or more substrates, dissociating an etch precursor gas in a gas activation cell by exposing the etch precursor gas to photons from an energy source assembly having a wavelength selected for pyrolytic dissociation of the etch precursor gas and introducing the dissociated etch precursor gas into the processing volume to etch at least a portion of the material layer from the surface of the one or more substrates.
    Type: Application
    Filed: March 13, 2017
    Publication date: September 21, 2017
    Inventors: Stephen MOFFATT, Joseph M. RANISH
  • Patent number: 9762021
    Abstract: A laser that emits light at all available frequencies distributed throughout the spectral bandwidth or emission bandwidth of the laser in a single pulse or pulse train is disclosed. The laser is pumped or seeded with photons having frequencies distributed throughout the superunitary gain bandwidth of the gain medium. The source of photons is a frequency modulated photon source, and the frequency modulation is controlled to occur in one or more cycles timed to occur within a time scale for pulsing the laser.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: September 12, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventor: Stephen Moffatt
  • Patent number: 9735034
    Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for visual lamp failure detection in a processing chamber, such as an RTP chamber. Visual feedback is facilitated through the use of a wide-angle lens positioned to view lamps within the process chamber. The wide-angle lens is positioned within a probe and secured using a spring in order to withstand high temperature processing. A camera coupled to the lens is adapted to capture an image of the lamps within the process chamber. The captured image of the lamps is then compared to a reference image to determine if the lamps are functioning as desired.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 15, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Kim Vellore, Dinesh Kanawade, Stephen Moffatt, Aaron Miller, Leonid M. Tertitski, Norman L. Tam, Michael Liu, Colin Fox
  • Patent number: 9685186
    Abstract: Methods and apparatus for forming substrates having magnetically patterned surfaces is provided. A magnetic layer comprising one or more materials having magnetic properties is formed on a substrate. The magnetic layer is subjected to a patterning process in which selected portions of the surface of the magnetic layer are altered such that the altered portions have different magnetic properties from the non-altered portions without changing the topography of the substrate. A protective layer and a lubricant layer are deposited over the patterned magnetic layer. The patterning is accomplished through a number of processes that expose substrates to energy of varying forms. Apparatus and methods disclosed herein enable processing of two major surfaces of a substrate simultaneously, or sequentially by flipping. In some embodiments, magnetic properties of the substrate surface may be uniformly altered by plasma exposure and then selectively restored by exposure to patterned energy.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 20, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Majeed A. Foad, Jacob Newman, Jose Antonio Marin, Daniel J. Hoffman, Stephen Moffatt, Steven Verhaverbeke
  • Publication number: 20170148726
    Abstract: A semiconductor processing method and semiconductor device are described. The processing method includes forming a p-doped germanium structure on a substrate, annealing the p-doped germanium structure using pulses of laser radiation, and forming a titanium structure in direct contact with the p-doped germanium structure.
    Type: Application
    Filed: November 2, 2016
    Publication date: May 25, 2017
    Inventors: Stephen MOFFATT, Abhilash J. MAYUR, Theodore P. MOFFITT, Aaron Muir HUNTER, Shashank SHARMA, Bruce E. ADAMS, Samuel C. HOWELLS, Douglas E. HOLMGREN, Wolfgang R. ADERHOLD
  • Publication number: 20170082367
    Abstract: A method and apparatus for annealing semiconductor substrates is disclosed. The apparatus has an annealing energy source and a substrate support, with a shield member disposed between the annealing energy source and the substrate support. The shield member is a substantially flat member having a dimension larger than a substrate processed on the substrate support, with a window covering a central opening in the substantially flat member. The central opening has a gas inlet portal and a gas outlet portal, each in fluid communication with a gas inlet plenum and gas outlet plenum, respectively. A connection member is disposed around the central opening and holds the window over the central opening. Connection openings in the connection member are in fluid communication with the gas inlet plenum and gas outlet plenum, respectively, through a gas inlet conduit and a gas outlet conduit formed through the connection member.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Inventors: Stephen MOFFATT, Aaron Muir HUNTER
  • Publication number: 20170072505
    Abstract: The present invention generally describes apparatuses and methods used to perform an annealing process on desired regions of a substrate. In one embodiment, pulses of electromagnetic energy are delivered to a substrate using a flash lamp or laser apparatus. The pulses may be from about 1 nsec to about 10 msec long, and each pulse has less energy than that required to melt the substrate material. The interval between pulses is generally long enough to allow the energy imparted by each pulse to dissipate completely. Thus, each pulse completes a micro-anneal cycle. The pulses may be delivered to the entire substrate at once, or to portions of the substrate at a time. Further embodiments provide an apparatus for powering a radiation assembly, and apparatuses for detecting the effect of pulses on a substrate.
    Type: Application
    Filed: November 16, 2016
    Publication date: March 16, 2017
    Inventors: Stephen MOFFATT, Joseph M. RANISH
  • Patent number: 9595459
    Abstract: A method and apparatus are provided for treating a substrate. The substrate is positioned on a support in a thermal treatment chamber. Electromagnetic radiation is directed toward the substrate to anneal a portion of the substrate. Other electromagnetic radiation is directed toward the substrate to preheat a portion of the substrate. The preheating reduces thermal stresses at the boundary between the preheat region and the anneal region. Any number of anneal and preheat regions are contemplated, with varying shapes and temperature profiles, as needed for specific embodiments. Any convenient source of electromagnetic radiation may be used, such as lasers, heat lamps, white light lamps, or flash lamps.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: March 14, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Stephen Moffatt, Abhilash J. Mayur, Sundar Ramamurthy, Joseph M. Ranish, Aaron Muir Hunter
  • Publication number: 20170040194
    Abstract: Embodiments described herein relate to apparatus and methods of thermal processing. More specifically, apparatus and methods described herein relate to laser thermal treatment of semiconductor substrates by increasing the uniformity of energy distribution in an image at a surface of a substrate.
    Type: Application
    Filed: July 11, 2016
    Publication date: February 9, 2017
    Inventors: Jiping LI, Aaron Muir HUNTER, Bruce E. ADAMS, Kim VELLORE, Samuel C. HOWELLS, Stephen MOFFATT
  • Patent number: 9557111
    Abstract: A method and apparatus for annealing semiconductor substrates is disclosed. The apparatus has an annealing energy source and a substrate support, with a shield member disposed between the annealing energy source and the substrate support. The shield member is a substantially flat member having a dimension larger than a substrate processed on the substrate support, with a window covering a central opening in the substantially flat member. The central opening has a gas inlet portal and a gas outlet portal, each in fluid communication with a gas inlet plenum and gas outlet plenum, respectively. A connection member is disposed around the central opening and holds the window over the central opening. Connection openings in the connection member are in fluid communication with the gas inlet plenum and gas outlet plenum, respectively, through a gas inlet conduit and a gas outlet conduit formed through the connection member.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: January 31, 2017
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Stephen Moffatt, Aaron Muir Hunter
  • Patent number: 9498845
    Abstract: The present invention generally describes apparatuses and methods used to perform an annealing process on desired regions of a substrate. In one embodiment, pulses of electromagnetic energy are delivered to a substrate using a flash lamp or laser apparatus. The pulses may be from about 1 nsec to about 10 msec long, and each pulse has less energy than that required to melt the substrate material. The interval between pulses is generally long enough to allow the energy imparted by each pulse to dissipate completely. Thus, each pulse completes a micro-anneal cycle. The pulses may be delivered to the entire substrate at once, or to portions of the substrate at a time. Further embodiments provide an apparatus for powering a radiation assembly, and apparatuses for detecting the effect of pulses on a substrate.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 22, 2016
    Assignee: Applied Materials, Inc.
    Inventors: Stephen Moffatt, Joseph M. Ranish
  • Patent number: 9499909
    Abstract: Embodiments of the invention provide a method and apparatus for depositing a layer on a substrate. In one embodiment, the method includes exposing a surface of the substrate disposed within a processing chamber to a fluid precursor, directing an electromagnetic radiation generated from a radiation source to a light scanning unit such that the electromagnetic radiation is deflected and scanned across the surface of the substrate upon which a material layer is to be formed, and initiating a deposition process with the electromagnetic radiation having a wavelength selected for photolytic dissociation of the fluid precursor to deposit the material layer onto the surface of the substrate. The radiation source may comprise a laser source, a bright light emitting diode (LED) source, or a thermal source. In one example, the radiation source is a fiber laser producing output in the ultraviolet (UV) wavelength range.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: November 22, 2016
    Assignee: Applied Materials, Inc.
    Inventor: Stephen Moffatt
  • Patent number: 9466500
    Abstract: An apparatus and use of the apparatus to form nanometer sized features on a workpiece includes a plurality of individually biasable tips, and each tip has a diameter on the scale or 10 nm or less. By moving the tips above the surface of a workpiece in the presence of reactants, features can be directly formed on the workpiece on a sub-micron size, below the resolution of current photolithography. The features may be etched into a workpiece, or formed thereover.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 11, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: James Francis Mack, Stephen Moffatt
  • Publication number: 20160293414
    Abstract: Apparatus and methods of treating a substrate with an amorphous semiconductor layer, or a semiconductor layer having small crystals, to form large crystals in the substrate are described. A treatment area of the substrate is identified and melted using a progressive melting process of delivering pulsed energy to the treatment area. The treatment area is then recrystallized using a progressive crystallization process of delivering pulsed energy to the area. The pulsed energy delivered during the progressive crystallization process is selected to convert the small crystals into large crystals as the melted material freezes.
    Type: Application
    Filed: June 19, 2016
    Publication date: October 6, 2016
    Inventors: Bruce E. ADAMS, Aaron Muir HUNTER, Stephen MOFFATT
  • Patent number: 9455145
    Abstract: A method and apparatus for forming a crystalline semiconductor layer on a substrate are provided. A semiconductor layer is formed by vapor deposition. A pulsed laser melt/recrystallization process is performed to convert the semiconductor layer to a crystalline layer. Laser, or other electromagnetic radiation, pulses are formed into a pulse train and uniformly distributed over a treatment zone, and successive neighboring treatment zones are exposed to the pulse train to progressively convert the deposited material to crystalline material.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: September 27, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventor: Stephen Moffatt
  • Publication number: 20160252745
    Abstract: Embodiments described herein provide apparatus and methods for processing semiconductor substrates with uniform laser energy. A laser pulse or beam is directed to a spatial homogenizer, which may be a plurality of lenses arranged along a plane perpendicular to the optical path of the laser energy, an example being a microlens array. The spatially uniformized energy produced by the spatial homogenizer is then directed to a refractive medium that has a plurality of thicknesses. Each thickness of the plurality of thicknesses is different from the other thicknesses by at least the coherence length of the laser energy.
    Type: Application
    Filed: May 11, 2016
    Publication date: September 1, 2016
    Inventor: Stephen MOFFATT
  • Publication number: 20160208415
    Abstract: A magnetic field guided crystal orientation system, and a method of operation of a magnetic field guided crystal orientation system thereof, including: a work platform; a heating element above the work platform for selectively heating a base layer having grains on a wafer substrate where the wafer substrate is a part of a wafer on the work platform; and a magnetic assembly fixed relative to the heating element for aligning the grains of the base layer using a magnetic field of 10 Tesla or greater for formation of an interconnect having a crystal orientation of grains in the interconnect matching the crystal orientation of the grains of the base layer.
    Type: Application
    Filed: August 19, 2014
    Publication date: July 21, 2016
    Inventors: Christopher Dennis Bencher, Peng Xie, Stephen Moffatt, Bruce E. Adams, Majeed A. Foad
  • Patent number: 9390926
    Abstract: Embodiments described herein relate to apparatus and methods of thermal processing. More specifically, apparatus and methods described herein relate to laser thermal treatment of semiconductor substrates by increasing the uniformity of energy distribution in an image at a surface of a substrate.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: July 12, 2016
    Assignee: APPLIED MATERIALS, INC.
    Inventors: Jiping Li, Aaron Muir Hunter, Bruce E. Adams, Kim Vellore, Samuel C. Howells, Stephen Moffatt