Patents by Inventor Alexander Sztein

Alexander Sztein 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: 20240120435
    Abstract: Methods for manufacturing LED display panel devices include providing donor wafers having LED die configured to emit different color emissions. At least some of the LED die are selectively transferred from the donor wafers to a carrier wafer such that the carrier wafer is configured with different color emitting LEDs. The different color LEDs may include red-green-blue LEDs to form a RGB display panel.
    Type: Application
    Filed: October 7, 2022
    Publication date: April 11, 2024
    Applicant: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Alexander Sztein, Nicholas J. Pfister
  • Patent number: 11955521
    Abstract: A method for manufacturing a display panel comprising light emitting device including micro LEDs includes providing multiple donor wafers having a surface region and forming an epitaxial material overlying the surface region. The epitaxial material includes an n-type region, an active region comprising at least one light emitting layer overlying the n-type region, and a p-type region overlying the active layer region. The multiple donor wafers are configured to emit different color emissions. The epitaxial material on the multiple donor wafers is patterned to form a plurality of dice, characterized by a first pitch between a pair of dice less than a design width. At least some of the dice are selectively transferred from the multiple donor wafers to a common carrier wafer such that the carrier wafer is configured with different color emitting LEDs. The different color LEDs could comprise red-green-blue LEDs to form a RGB display panel.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: April 9, 2024
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Melvin McLaurin, Alexander Sztein, Po Shan Hsu
  • Patent number: 11948980
    Abstract: A method for manufacturing a display panel comprising light emitting device including micro LEDs includes providing multiple donor wafers having a surface region and forming an epitaxial material overlying the surface region. The epitaxial material includes an n-type region, an active region comprising at least one light emitting layer overlying the n-type region, and a p-type region overlying the active layer region. The multiple donor wafers are configured to emit different color emissions. The epitaxial material on the multiple donor wafers is patterned to form a plurality of dice, characterized by a first pitch between a pair of dice less than a design width. At least some of the dice are selectively transferred from the multiple donor wafers to a common carrier wafer such that the carrier wafer is configured with different color emitting LEDs. The different color LEDs could comprise red-green-blue LEDs to form a RGB display panel.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: April 2, 2024
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Melvin McLaurin, Alexander Sztein, Po Shan Hsu
  • Patent number: 11862939
    Abstract: An intermediate ultraviolet laser diode device includes a gallium and nitrogen containing substrate member comprising a surface region, a release material overlying the surface region, an n-type gallium and nitrogen containing material; an active region overlying the n-type gallium and nitrogen containing material; a p-type gallium and nitrogen containing material; a first transparent conductive oxide material overlying the p-type gallium and nitrogen containing material; and an interface region overlying the first transparent conductive oxide material.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: January 2, 2024
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Melvin McLaurin, Paul Rudy, Po Shan Hsu, Alexander Sztein
  • Patent number: 11742631
    Abstract: Laser diode technology incorporating etched facet mirror formation and optical coating techniques for reflectivity modification to enable ultra-high catastrophic optical mirror damage thresholds for high power laser diodes.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: August 29, 2023
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Hua Huang, Phillip Skahan, Sang-Ho Oh, Ben Yonkee, Alexander Sztein, Qiyuan Wei
  • Publication number: 20230238777
    Abstract: A method for manufacturing a laser diode device includes providing a substrate having a surface region and forming epitaxial material overlying the surface region, the epitaxial material comprising an n-type cladding region, an active region comprising at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active layer region. The epitaxial material is patterned to form a plurality of dice, each of the dice corresponding to at least one laser device, characterized by a first pitch between a pair of dice, the first pitch being less than a design width. Each of the plurality of dice are transferred to a carrier wafer such that each pair of dice is configured with a second pitch between each pair of dice, the second pitch being larger than the first pitch.
    Type: Application
    Filed: January 11, 2023
    Publication date: July 27, 2023
    Applicant: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Alexander Sztein, Po Shan Hsu
  • Patent number: 11710944
    Abstract: A multi-wavelength light emitting device is manufactured by forming first and second epitaxial materials overlying first and second surface regions. The first and second epitaxial materials are patterned to form a plurality of first and second epitaxial dice. At least one of the first plurality of epitaxial dice and at least one of the second plurality of epitaxial dice are transferred from first and second substrates, respectively, to a carrier wafer by selectively etching a release region, separating from the substrate each of the epitaxial dice that are being transferred, and selectively bonding to the carrier wafer each of the epitaxial dice that are being transferred. The transferred first and second epitaxial dice are processed on the carrier wafer to form a plurality of light emitting devices capable of emitting at least a first wavelength and a second wavelength.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: July 25, 2023
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, Alexander Sztein, Po Shan Hsu, Eric Goutain, James W. Raring, Paul Rudy, Vlad Novotny
  • Patent number: 11705689
    Abstract: A plurality of dies includes a gallium and nitrogen containing substrate having a surface region and an epitaxial material formed overlying the surface region. The epitaxial material includes an n-type cladding region, an active region having at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active region. The epitaxial material is patterned to form the plurality of dies on the surface region, the dies corresponding to a laser device. Each of the plurality of dies includes a release region composed of a material with a smaller bandgap than an adjacent epitaxial material. A lateral width of the release region is narrower than a lateral width of immediately adjacent layers above and below the release region to form undercut regions bounding each side of the release region. Each die also includes a passivation region extending along sidewalls of the active region.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: July 18, 2023
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Alexander Sztein, Melvin McLaurin, Po Shan Hsu, James W. Raring
  • Patent number: 11658456
    Abstract: A multi-emitter laser diode device includes a carrier chip singulated from a carrier wafer. The carrier chip has a length and a width, and the width defines a first pitch. The device also includes a plurality of epitaxial mesa dice regions transferred to the carrier chip from a substrate and attached to the carrier chip at a bond region. Each of the epitaxial mesa dice regions is arranged on the carrier chip in a substantially parallel configuration and positioned at a second pitch defining the distance between adjacent epitaxial mesa dice regions. Each of the plurality of epitaxial mesa dice regions includes epitaxial material, which includes an n-type cladding region, an active region having at least one active layer region, and a p-type cladding region. The device also includes one or more laser diode stripe regions, each of which has a pair of facets forming a cavity region.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: May 23, 2023
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Dan Steigerwald, Melvin McLaurin, Eric Goutain, Alexander Sztein, Po Shan Hsu, Paul Rudy, James W. Raring
  • Patent number: 11569637
    Abstract: A method for manufacturing a laser diode device includes providing a substrate having a surface region and forming epitaxial material overlying the surface region, the epitaxial material comprising an n-type cladding region, an active region comprising at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active layer region. The epitaxial material is patterned to form a plurality of dice, each of the dice corresponding to at least one laser device, characterized by a first pitch between a pair of dice, the first pitch being less than a design width. Each of the plurality of dice are transferred to a carrier wafer such that each pair of dice is configured with a second pitch between each pair of dice, the second pitch being larger than the first pitch.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: January 31, 2023
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Alexander Sztein, Po Shan Hsu
  • Patent number: 11387629
    Abstract: An intermediate ultraviolet laser diode device includes a gallium and nitrogen containing substrate member comprising a surface region, a release material overlying the surface region, an n-type gallium and nitrogen containing material; an active region overlying the n-type gallium and nitrogen containing material; a p-type gallium and nitrogen containing material; a first transparent conductive oxide material overlying the p-type gallium and nitrogen containing material; and an interface region overlying the first transparent conductive oxide material.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: July 12, 2022
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Melvin McLaurin, Paul Rudy, Po Shan Hsu, Alexander Sztein
  • Patent number: 11342727
    Abstract: In an example, the present invention provides a gallium and nitrogen containing structure. The structure has a plurality of gallium and nitrogen containing semiconductor substrates, each of the gallium and nitrogen containing semiconductor substrates having one or more epitaxially grown layers. The structure has a first handle substrate coupled to each of the substrates. The orientation of a reference crystal direction for each of the substrates are parallel to within 10 degrees or less. The structure has a first bonding medium provided between the first handle substrate and each of the substrates.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: May 24, 2022
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, Alexander Sztein, Po Shan Hsu, James W. Raring
  • Publication number: 20220077658
    Abstract: A multi-wavelength light emitting device is manufactured by forming first and second epitaxial materials overlying first and second surface regions. The first and second epitaxial materials are patterned to form a plurality of first and second epitaxial dice. At least one of the first plurality of epitaxial dice and at least one of the second plurality of epitaxial dice are transferred from first and second substrates, respectively, to a carrier wafer by selectively etching a release region, separating from the substrate each of the epitaxial dice that are being transferred, and selectively bonding to the carrier wafer each of the epitaxial dice that are being transferred. The transferred first and second epitaxial dice are processed on the carrier wafer to form a plurality of light emitting devices capable of emitting at least a first wavelength and a second wavelength.
    Type: Application
    Filed: September 16, 2021
    Publication date: March 10, 2022
    Applicant: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, Alexander Sztein, Po Shan Hsu, Eric Goutain, James W. Raring, Paul Rudy, Vlad Novotny
  • Publication number: 20220006256
    Abstract: A plurality of dies includes a gallium and nitrogen containing substrate having a surface region and an epitaxial material formed overlying the surface region. The epitaxial material includes an n-type cladding region, an active region having at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active region. The epitaxial material is patterned to form the plurality of dies on the surface region, the dies corresponding to a laser device. Each of the plurality of dies includes a release region composed of a material with a smaller bandgap than an adjacent epitaxial material. A lateral width of the release region is narrower than a lateral width of immediately adjacent layers above and below the release region to form undercut regions bounding each side of the release region. Each die also includes a passivation region extending along sidewalls of the active region.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 6, 2022
    Inventors: Alexander Sztein, Melvin McLaurin, Po Shan Hsu, James W. Raring
  • Publication number: 20210344164
    Abstract: A multi-emitter laser diode device includes a carrier chip singulated from a carrier wafer. The carrier chip has a length and a width, and the width defines a first pitch. The device also includes a plurality of epitaxial mesa dice regions transferred to the carrier chip from a substrate and attached to the carrier chip at a bond region. Each of the epitaxial mesa dice regions is arranged on the carrier chip in a substantially parallel configuration and positioned at a second pitch defining the distance between adjacent epitaxial mesa dice regions. Each of the plurality of epitaxial mesa dice regions includes epitaxial material, which includes an n-type cladding region, an active region having at least one active layer region, and a p-type cladding region. The device also includes one or more laser diode stripe regions, each of which has a pair of facets forming a cavity region.
    Type: Application
    Filed: May 12, 2021
    Publication date: November 4, 2021
    Inventors: Dan Steigerwald, Melvin McLaurin, Eric Goutain, Alexander Sztein, Po Shan Hsu, Paul Rudy, James W. Raring
  • Patent number: 11139634
    Abstract: Laser diode technology incorporating etched facet mirror formation and optical coating techniques for reflectivity modification to enable ultra-high catastrophic optical mirror damage thresholds for high power laser diodes.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: October 5, 2021
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: James W. Raring, Hua Huang, Phillip Skahan, Sang-Ho Oh, Ben Yonkee, Alexander Sztein, Qiyuan Wei
  • Patent number: 11139637
    Abstract: A multi-wavelength light emitting device is manufactured by forming first and second epitaxial materials overlying first and second surface regions. The first and second epitaxial materials are patterned to form a plurality of first and second epitaxial dice. At least one of the first plurality of epitaxial dice and at least one of the second plurality of epitaxial dice are transferred from first and second substrates, respectively, to a carrier wafer by selectively etching a release region, separating from the substrate each of the epitaxial dice that are being transferred, and selectively bonding to the carrier wafer each of the epitaxial dice that are being transferred. The transferred first and second epitaxial dice are processed on the carrier wafer to form a plurality of light emitting devices capable of emitting at least a first wavelength and a second wavelength.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 5, 2021
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, Alexander Sztein, Po Shan Hsu, Eric Goutain, James W. Raring, Paul Rudy, Vlad Novotny
  • Patent number: 11088505
    Abstract: A plurality of dies includes a gallium and nitrogen containing substrate having a surface region and an epitaxial material formed overlying the surface region. The epitaxial material includes an n-type cladding region, an active region having at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active region. The epitaxial material is patterned to form the plurality of dies on the surface region, the dies corresponding to a laser device. Each of the plurality of dies includes a release region composed of a material with a smaller bandgap than an adjacent epitaxial material. A lateral width of the release region is narrower than a lateral width of immediately adjacent layers above and below the release region to form undercut regions bounding each side of the release region. Each die also includes a passivation region extending along sidewalls of the active region.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 10, 2021
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Alexander Sztein, Melvin McLaurin, Po Shan Hsu, James W. Raring
  • Publication number: 20210226421
    Abstract: A method for manufacturing a laser diode device includes providing a substrate having a surface region and forming epitaxial material overlying the surface region, the epitaxial material comprising an n-type cladding region, an active region comprising at least one active layer overlying the n-type cladding region, and a p-type cladding region overlying the active layer region. The epitaxial material is patterned to form a plurality of dice, each of the dice corresponding to at least one laser device, characterized by a first pitch between a pair of dice, the first pitch being less than a design width. Each of the plurality of dice are transferred to a carrier wafer such that each pair of dice is configured with a second pitch between each pair of dice, the second pitch being larger than the first pitch.
    Type: Application
    Filed: January 7, 2021
    Publication date: July 22, 2021
    Inventors: Melvin McLaurin, James W. Raring, Alexander Sztein, Po Shan Hsu
  • Patent number: 11011889
    Abstract: A multi-emitter laser diode device includes a carrier chip singulated from a carrier wafer. The carrier chip has a length and a width, and the width defines a first pitch. The device also includes a plurality of epitaxial mesa dice regions transferred to the carrier chip from a substrate and attached to the carrier chip at a bond region. Each of the epitaxial mesa dice regions is arranged on the carrier chip in a substantially parallel configuration and positioned at a second pitch defining the distance between adjacent epitaxial mesa dice regions. Each of the plurality of epitaxial mesa dice regions includes epitaxial material, which includes an n-type cladding region, an active region having at least one active layer region, and a p-type cladding region. The device also includes one or more laser diode stripe regions, each of which has a pair of facets forming a cavity region.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 18, 2021
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Dan Steigerwald, Melvin McLaurin, Eric Goutain, Alexander Sztein, Po Shan Hsu, Paul Rudy, James W. Raring