Patents by Inventor Manivannan Thothadri

Manivannan Thothadri 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: 20190189685
    Abstract: An apparatus for positioning micro-devices on a destination substrate includes a first support to hold a destination substrate, a second support to provide or hold a transfer body having a surface to receive an adhesive layer, a light source to generate a light beam, a mirror configured to adjustably position the light beam on the adhesive layer on the transfer body, and a controller. The controller is configured to cause the light source to generate the light beam and adjust the mirror to position the light beam on the adhesive layer so as to selectively expose one or more portions of the adhesive layer to create one or more neutralized portions. The transfer body and the destination substrate are moved away from each other and one or more micro-devices corresponding to the one or more neutralized portions of the adhesive layer remain on the destination substrate.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 20, 2019
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Patent number: 10319782
    Abstract: A method of surface mounting micro-devices includes adhering a first plurality of micro-devices on a donor substrate to a transfer surface with an adhesive layer, removing the first plurality of micro-devices from donor substrate while the first plurality of micro-devices remain adhered to the transfer surface, positioning the transfer surface relative to a destination substrate so that a subset of the plurality of micro-devices on the transfer surface abut a plurality of receiving positions on the destination substrate, the subset including one or more micro-devices but less than all of micro-devices of the plurality of micro-devices, selectively neutralizing one or more of regions of the adhesive layer on the transfer surface corresponding to the subset of micro-device to light to detach the subset of micro-devices from the adhesive layer, and separating the transfer surface from the destination substrate such that the subset of micro-devices remain on the destination substrate.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 11, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20190131571
    Abstract: Flexible display devices, such as flexible cover lens films, are discussed and provided herein. The flexible cover lens film has good strength, elasticity, optical transmission, wear resistance, and thermostability. The cover lens film includes a hard coat layer with a thickness from about 5 ?m to 40 ?m, an impact absorption layer with a thickness from about 20 ?m to 110 ?m, and a substrate layer with a thickness from about 10 ?m to 175 ?m and is disposed between the hard coat layer and the impact absorption layer. By combining the hard coat layer and the impact resistant layer, the cover lens film is both flexible and strong with hardness from 6 H to 9 H.
    Type: Application
    Filed: August 28, 2018
    Publication date: May 2, 2019
    Inventors: Manivannan THOTHADRI, Daniel Paul FORSTER, Robert F. PRAINO, JR., Harvey YOU
  • Patent number: 10256382
    Abstract: The present disclosure generally relates to light field displays and methods of displaying images with light field arrays. In one example, the present disclosure relates to pixel arrangements for use in light field displays. Each pixel includes a plurality of LEDs, such as micro LEDs, positioned adjacent respective micro-lenses of each pixel.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 9, 2019
    Assignee: APPLIED MATERIALS, INC.
    Inventors: John M. White, Christopher Dennis Bencher, Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20190103439
    Abstract: A method of surface mounting micro-devices includes adhering a first plurality of micro-devices on a donor substrate to a transfer surface with an adhesive layer, removing the first plurality of micro-devices from donor substrate while the first plurality of micro-devices remain adhered to the transfer surface, positioning the transfer surface relative to a destination substrate so that a subset of the plurality of micro-devices on the transfer surface abut a plurality of receiving positions on the destination substrate, the subset including one or more micro-devices but less than all of micro-devices of the plurality of micro-devices, selectively neutralizing one or more of regions of the adhesive layer on the transfer surface corresponding to the subset of micro-device to light to detach the subset of micro-devices from the adhesive layer, and separating the transfer surface from the destination substrate such that the subset of micro-devices remain on the destination substrate.
    Type: Application
    Filed: November 16, 2018
    Publication date: April 4, 2019
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Patent number: 10217793
    Abstract: An apparatus for positioning micro-devices on a destination substrate includes a first support to hold a destination substrate, a second support to provide or hold a transfer body having a surface to receive an adhesive layer, a light source to generate a light beam, a mirror configured to adjustably position the light beam on the adhesive layer on the transfer body, and a controller. The controller is configured to cause the light source to generate the light beam and adjust the mirror to position the light beam on the adhesive layer so as to selectively expose one or more portions of the adhesive layer to create one or more neutralized portions. The transfer body and the destination substrate are moved away from each other and one or more micro-devices corresponding to the one or more neutralized portions of the adhesive layer remain on the destination substrate.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 26, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20190019840
    Abstract: Embodiments described herein provide for light field displays and methods of forming light field displays where micro-LED arrays are each configured to provide at least a macro-pixel of effective native hardware resolution, where each macro-pixel provides single pixel of spatial resolution and plurality of pixels of angular resolution, and where each pixel of angular resolution includes a plurality of sub-pixels each provided by a directional collimating micro-LED device described herein.
    Type: Application
    Filed: February 23, 2018
    Publication date: January 17, 2019
    Inventors: Manivannan THOTHADRI, Christopher Dennis BENCHER, Robert Jan VISSER, John M. WHITE
  • Patent number: 10153325
    Abstract: A method of surface mounting micro-devices includes adhering a first plurality of micro-devices on a donor substrate to a transfer surface with an adhesive layer, removing the first plurality of micro-devices from donor substrate while the first plurality of micro-devices remain adhered to the transfer surface, positioning the transfer surface relative to a destination substrate so that a subset of the plurality of micro-devices on the transfer surface abut a plurality of receiving positions on the destination substrate, the subset including one or more micro-devices but less than all of micro-devices of the plurality of micro-devices, selectively neutralizing one or more of regions of the adhesive layer on the transfer surface corresponding to the subset of micro-device to light to detach the subset of micro-devices from the adhesive layer, and separating the transfer surface from the destination substrate such that the subset of micro-devices remain on the destination substrate.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 11, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20180166616
    Abstract: The present disclosure generally relates to light field displays and methods of displaying images with light field arrays. In one example, the present disclosure relates to pixel arrangements for use in light field displays. Each pixel includes a plurality of LEDs, such as micro LEDs, positioned adjacent respective micro-lenses of each pixel.
    Type: Application
    Filed: December 11, 2017
    Publication date: June 14, 2018
    Inventors: John M. WHITE, Christopher Dennis BENCHER, Manivannan THOTHADRI, Robert JAN VISSER
  • Publication number: 20170358623
    Abstract: A method of surface mounting micro-devices includes adhering a first plurality of micro-devices on a donor substrate to a transfer surface with an adhesive layer, removing the first plurality of micro-devices from donor substrate while the first plurality of micro-devices remain adhered to the transfer surface, positioning the transfer surface relative to a destination substrate so that a subset of the plurality of micro-devices on the transfer surface abut a plurality of receiving positions on the destination substrate, the subset including one or more micro-devices but less than all of micro-devices of the plurality of micro-devices, selectively neutralizing one or more of regions of the adhesive layer on the transfer surface corresponding to the subset of micro-device to light to detach the subset of micro-devices from the adhesive layer, and separating the transfer surface from the destination substrate such that the subset of micro-devices remain on the destination substrate.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20170358478
    Abstract: An apparatus for positioning micro-devices on a destination substrate includes a first support to hold a destination substrate, a second support to provide or hold a transfer body having a surface to receive an adhesive layer, a light source to generate a light beam, a mirror configured to adjustably position the light beam on the adhesive layer on the transfer body, and a controller. The controller is configured to cause the light source to generate the light beam and adjust the mirror to position the light beam on the adhesive layer so as to selectively expose one or more portions of the adhesive layer to create one or more neutralized portions. The transfer body and the destination substrate are moved away from each other and one or more micro-devices corresponding to the one or more neutralized portions of the adhesive layer remain on the destination substrate.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Manivannan Thothadri, Robert Jan Visser
  • Publication number: 20110198322
    Abstract: In-line metrology methods and systems for use with laser-scribing systems used in solar-cell fabrication are disclosed. Such methods and systems can involve a variety of components, for example, a device for measuring the amount of power input to a laser, a power meter for measuring laser output power, a beam viewer for measuring aspects of a laser beam, a height sensor for measuring a workpiece height, a microscope for measuring workpiece features formed by the laser-scribing system, and a system for monitoring a laser-scribing system and annunciating a warning(s) and/or an error message(s) when operational limits are exceeded. In-line metrology methods can also include the processing of output beam reflections so as to track beam drift over time and/or provide for focusing of an imaging device.
    Type: Application
    Filed: August 5, 2010
    Publication date: August 18, 2011
    Applicant: Applied Materials, Inc.
    Inventors: Antoine P. Manens, Ting-Ruei Shiu, Bassam Shamoun, Wei-Yung Hsu, Manivannan Thothadri
  • Publication number: 20110139755
    Abstract: Multi-wavelength laser-scribing systems are disclosed. A system for scribing a workpiece includes a frame, a translation stage coupled with the frame to support the workpiece and translate the supported workpiece relative to the frame in a longitudinal direction, at least one laser operable to generate a first output having a first wavelength and generate a second output having a second wavelength, and at least one scanning device coupled with the frame and operable to control a position of the first and second outputs. Each of the first and second outputs are able to remove material from at least a portion of the workpiece. Laser assemblies that each include a laser and at least one scanning device can be arranged in rows to enhance the rate at which latitudinal scribe lines are formed.
    Type: Application
    Filed: November 3, 2010
    Publication date: June 16, 2011
    Applicant: Applied Materials, Inc.
    Inventors: Antoine P. Manens, Wei-Yung Hsu, Manivannan Thothadri, Arthur Kenichi Yasuda