Patents by Inventor Gregory McGraw

Gregory McGraw 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: 20210367217
    Abstract: Techniques and devices are provided for attaching a die to a metal manifold. A metal-containing ink is used to deposit a metal trace on the die and thereby to form a gasket, after which the die is compressed against the manifold to form a sealed connection between the two.
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Inventors: William E. QUINN, Jason PAYNTER, Gregory MCGRAW, Matthew KING
  • Publication number: 20210355575
    Abstract: Embodiments of the disclosed subject matter provide a vapor distribution manifold that ejects organic vapor laden gas into a chamber and withdraws chamber gas, where vapor ejected from the manifold is incident on, and condenses onto, a deposition surface within the chamber that moves relative to one or more print heads in a direction orthogonal to a platen normal and a linear extent of the manifold. The volumetric flow of gas withdrawn by the manifold from the chamber may be greater than the volumetric flow of gas injected into the chamber by the manifold. The net outflow of gas from the chamber through the manifold may prevent organic vapor from diffusing beyond the extent of the gap between the manifold and deposition surface. The manifold may be configured so that long axes of delivery and exhaust apertures are perpendicular to a print direction.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 18, 2021
    Inventors: William E. QUINN, Gregory MCGRAW, Matthew KING, Gregg KOTTAS
  • Publication number: 20210351385
    Abstract: Embodiments of the disclosed subject matter provide an apparatus having a device with a micronozzle array disposed on a micro-fabricated fluidic die. The device may include a first gas distribution plate and a second opposing plate, where the micro-fabricated fluidic die is disposed between the first gas distribution plate and the second opposing plate, wherein the first gas distribution plate is irreversibly joined to the micronozzle array with a seal that is gas-tight, and where the first gas distribution plate includes a plurality of sealed flow paths. A manifold may be reversibly joined to the first gas distribution plate, where the micro-fabricated fluidic die and the first gas distribution plate and the second opposing plate are disposed between the manifold. A thermally conductive plate may have at least one window that provides a clearance fit for the device across a range of motion relative to the thermally conductive plate.
    Type: Application
    Filed: April 7, 2021
    Publication date: November 11, 2021
    Inventors: Matthew KING, Gregg KOTTAS, Gregory MCGRAW, William E. QUINN
  • Publication number: 20210351350
    Abstract: Methods and devices for controlling pressures in microenvironments between a deposition apparatus and a substrate are provided. Each microenvironment is associated with an aperture of the deposition apparatus which can allow for control of the microenvironment.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Inventors: William E. Quinn, Siddharth Harikrishna Mohan, Gregory McGraw, Xin Xu
  • Patent number: 11168391
    Abstract: A deposition nozzle is provided that includes offset deposition apertures disposed between exhaust apertures on either side of the deposition apertures. The provided nozzle arrangements allow for deposition of material with a deposition profile suitable for use in devices such as OLEDs.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: November 9, 2021
    Assignee: Universal Display Corporation
    Inventors: Edwin van den Tillaart, Sven Pekelder, Mark Meuwese, William E. Quinn, Gregory McGraw, Gregg Kottas
  • Publication number: 20210343942
    Abstract: Embodiments of the disclosed subject matter provide a micronozzle array including a linear array having a plurality of depositors connected in series, where a first depositor of the plurality of depositors may border a second depositor on a least one side boundary. The micronozzle array may include plurality of orifice arrays, where a width of each orifice in the plurality of orifice arrays is 20 ?m or less in a minor axis of its cross section to flow, to regulate flow through a delivery gas distribution channel. The micronozzle array may include a plurality of exhaust distribution channels, where the delivery gas distribution channel and at least one of the plurality of exhaust distribution channels have separate fluid communication with each of the plurality of depositors.
    Type: Application
    Filed: July 8, 2021
    Publication date: November 4, 2021
    Inventors: Gregory MCGRAW, William E. QUINN, Roman KOROTKOV
  • Patent number: 11121320
    Abstract: Embodiments of the disclosed subject matter provide a device including a micronozzle array having separate redundant groups of depositors that each include a delivery aperture disposed between two exhaust apertures. The device may include a first row of depositors of a first redundant group, each of which may be connected in parallel to first common delivery lines and first common exhaust lines. The device may include a second row of depositors of a second redundant group, each of which is connected in parallel to second common delivery and second common exhaust lines. The first row of depositors and the second row of depositors may operate independently from one another. The device may be disposed within a deposition chamber and in proximity of a substrate.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: September 14, 2021
    Assignee: Universal Display Corporation
    Inventors: William E. Quinn, Gregory McGraw, Gregg Kottas, Xin Xu, Julia J. Brown
  • Patent number: 11121322
    Abstract: Systems and arrangements of OVJP deposition devices are provided, in which one or more organic material crucibles are directly attached to an injection block and a print head without the need for external delivery components such as feedtubes. Each crucible may be hermetically sealed until it is attached to the injection block, allowing for a single device to provide for storage, transport, and deposition of the organic material.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: September 14, 2021
    Assignee: Universal Display Corporation
    Inventors: Matthew King, William E. Quinn, Gregory McGraw, Siddharth Harikrishna Mohan, Elliot H. Hartford, Benjamin Swedlove, Gregg Kottas, Tomasz Trojacki, Julia J. Brown
  • Publication number: 20210280785
    Abstract: Devices and techniques are provided for depositing material on a substrate, such as for fabrication of OLEDs and layers used in OLEDs. A depositor block includes one or more delivery apertures, one or more exhaust apertures, and one or more confinement gas channels. Each delivery aperture is arranged such that it is between an exhaust aperture and a confinement gas channel, thereby improving deposition by reducing overspray of material.
    Type: Application
    Filed: October 18, 2017
    Publication date: September 9, 2021
    Inventors: Xin XU, Gregory MCGRAW, William E. QUINN
  • Publication number: 20210275440
    Abstract: The invention provides microbeads comprising chitosan, a magnetic nanoparticle, and an agent, and methods for using such microbeads for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection or disease.
    Type: Application
    Filed: September 27, 2017
    Publication date: September 9, 2021
    Applicant: THE UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: ANKITA MOHAPATRA, MICHAEL A. HARRIS, BASHIR I. MORSHED, JESSICA A. JENNINGS, JOEL BUMGARDNER, TOMOKO FUJIWARA, SANJAY R. MISHRA, DAVID A. LEVINE, GREGORY MCGRAW, WARREN O. HAGGARD
  • Publication number: 20210268536
    Abstract: Embodiments of the disclosed subject matter provide a device that may have a first depositor that includes one or more delivery apertures surrounded by one or more exhaust apertures, where the one or more delivery apertures and the one or more exhaust apertures are enclosed within a perimeter of a boss that protrudes from a substrate-facing side of the one or more delivery apertures. The delivery channels for the one or more delivery apertures and exhaust channels for the one or more exhaust apertures may be routed orthogonally to each other. The one or more delivery apertures may be configured to permit jets of delivery gas pass through a lower surface of the first depositor. The lower surface of the first depositor may include the one or more exhaust apertures to remove surplus vapor from a delivery zone. Embodiments may also provide a method of forming a print head.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Inventors: Gregory MCGRAW, William E. QUINN, Matthew KING
  • Patent number: 11104988
    Abstract: Embodiments of the disclosed subject matter provide a vapor distribution manifold that ejects organic vapor laden gas into a chamber and withdraws chamber gas, where vapor ejected from the manifold is incident on, and condenses onto, a deposition surface within the chamber that moves relative to one or more print heads in a direction orthogonal to a platen normal and a linear extent of the manifold. The volumetric flow of gas withdrawn by the manifold from the chamber may be greater than the volumetric flow of gas injected into the chamber by the manifold. The net outflow of gas from the chamber through the manifold may prevent organic vapor from diffusing beyond the extent of the gap between the manifold and deposition surface. The manifold may be configured so that long axes of delivery and exhaust apertures are perpendicular to a print direction.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 31, 2021
    Assignee: Universal Display Corporation
    Inventors: William E. Quinn, Gregory McGraw, Matthew King, Gregg Kottas
  • Patent number: 11108027
    Abstract: Techniques and devices are provided for attaching a die to a metal manifold. A metal-containing ink is used to deposit a metal trace on the die and thereby to form a gasket, after which the die is compressed against the manifold to form a sealed connection between the two.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: August 31, 2021
    Assignee: Universal Display Corporation
    Inventors: William E. Quinn, Jason Paynter, Gregory McGraw, Matthew King
  • Publication number: 20210254207
    Abstract: A microfluidic device for use with a microfluidic delivery system, such as an organic vapor jet printing device, includes a glass layer that is directly bonded to a microfabricated die and a metal plate via a double anodic bond. The double anodic bond is formed by forming a first anodic bond at an interface of the microfabricated die and the glass layer, and forming a second anodic bond at an interface of the metal plate and the glass layer, where the second anodic bond is formed using a voltage that is lower than the voltage used to form the first anodic bond. The second anodic bond is formed with the polarity of the voltage reversed with respect to the glass layer and the formation of the first anodic bond. The metal plate includes attachment features that allow removal of the microfluidic device from a fixture.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Stephen Forrest, Gregory McGraw, Siddharth Harikrishna Mohan, Diane L. Peters
  • Patent number: 11088325
    Abstract: Embodiments of the disclosed subject matter provide a micronozzle array including a linear array having a plurality of depositors connected in series, where a first depositor of the plurality of depositors may border a second depositor on a least one side boundary. The micronozzle array may include plurality of orifice arrays, where a width of each orifice in the plurality of orifice arrays is 20 ?m or less in a minor axis of its cross section to flow, to regulate flow through a delivery gas distribution channel. The micronozzle array may include a plurality of exhaust distribution channels, where the delivery gas distribution channel and at least one of the plurality of exhaust distribution channels have separate fluid communication with each of the plurality of depositors.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 10, 2021
    Assignee: Universal Display Corporation
    Inventors: Gregory McGraw, William E. Quinn, Roman Korotkov
  • Patent number: 11088324
    Abstract: Methods and devices for controlling pressures in microenvironments between a deposition apparatus and a substrate are provided. Each microenvironment is associated with an aperture of the deposition apparatus which can allow for control of the microenvironment.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: August 10, 2021
    Assignee: Universal Display Corporation
    Inventors: William E. Quinn, Siddharth Harikrishna Mohan, Gregory McGraw, Xin Xu
  • Publication number: 20210234139
    Abstract: Implementations of the disclosed subject matter provide a print bar for organic vapor jet (OVJP) deposition is provided that includes a plurality of n print head segments, where each of the plurality of print head segments may have an OVJP print head. The print bar may include a plurality of distance sensors, where each of the plurality of distance sensors may be configured to measure a distance between a substrate disposed below the print bar and a portion of at least one of the print head segments. The print bar may include a plurality of not more than n+1 actuators configured to adjust at least one of a position and an orientation of one or more of the plurality of print head segments based upon one or more distances between the substrate and the print bar measured by one or more of the plurality of distance sensors.
    Type: Application
    Filed: April 13, 2021
    Publication date: July 29, 2021
    Inventors: William E. QUINN, Gregory MCGRAW
  • Patent number: 11033924
    Abstract: Embodiments of the disclosed subject matter provide a device that may have a first depositor that includes one or more delivery apertures surrounded by one or more exhaust apertures, where the one or more delivery apertures and the one or more exhaust apertures are enclosed within a perimeter of a boss that protrudes from a substrate-facing side of the one or more delivery apertures. The delivery channels for the one or more delivery apertures and exhaust channels for the one or more exhaust apertures may be routed orthogonally to each other. The one or more delivery apertures may be configured to permit jets of delivery gas pass through a lower surface of the first depositor. The lower surface of the first depositor may include the one or more exhaust apertures to remove surplus vapor from a delivery zone. Embodiments may also provide a method of forming a print head.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: June 15, 2021
    Assignee: Universal Display Corporation
    Inventors: Gregory McGraw, William E. Quinn, Matthew King
  • Publication number: 20210167291
    Abstract: Embodiments of the disclosed subject matter provide systems and methods of depositing a film on a selective area of a substrate. A first jet of a first material may be ejected from a first nozzle assembly of a jet head having a plurality of nozzle assemblies to form a first portion of a film deposition on the substrate. A second jet of a second material may be ejected from a second nozzle assembly of the plurality of nozzle assemblies, the second nozzle assembly being aligned with the first nozzle assembly parallel to a direction of motion between the plurality of nozzle assemblies and the substrate, and the second material being different than the first material. The second material may react with the first portion of the film deposition to form a composite film deposition on the substrate when using reactive gas precursors.
    Type: Application
    Filed: January 6, 2021
    Publication date: June 3, 2021
    Inventors: Michael HACK, William E. QUINN, Gregory MCGRAW, William T. MAYWEATHER, III, Julia J. BROWN
  • Patent number: 11021785
    Abstract: A microfluidic device for use with a microfluidic delivery system, such as an organic vapor jet printing device, includes a glass layer that is directly bonded to a microfabricated die and a metal plate via a double anodic bond. The double anodic bond is formed by forming a first anodic bond at an interface of the microfabricated die and the glass layer, and forming a second anodic bond at an interface of the metal plate and the glass layer, where the second anodic bond is formed using a voltage that is lower than the voltage used to form the first anodic bond. The second anodic bond is formed with the polarity of the voltage reversed with respect to the glass layer and the formation of the first anodic bond. The metal plate includes attachment features that allow removal of the microfluidic device from a fixture.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 1, 2021
    Assignees: THE REGENTS OF THE UNIVERSITY OF MICHIGAN, UNIVERSAL DISPLAY CORPORATION
    Inventors: Stephen Forrest, Gregory McGraw, Siddharth Harikrishna Mohan, Diane L. Peters