Patents by Inventor Thiago P. Melo

Thiago P. Melo 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).

  • Patent number: 11177634
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: November 16, 2021
    Assignee: KYOCERA SLD Laser, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt
  • Patent number: 10651629
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 12, 2020
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt
  • Patent number: 10439365
    Abstract: In an example, the present invention provides a method for fabricating a light emitting device configured as a Group III-nitride based laser device. The method also includes forming a gallium containing epitaxial material overlying the surface region of a substrate member. The method includes forming a p-type (Al,In,Ga)N waveguiding material overlying the gallium containing epitaxial material under a predetermined process condition. The method includes maintaining the predetermined process condition such that an environment surrounding a growth of the p-type (Al,In,Ga)N waveguide material is substantially a molecular N2 rich gas environment. The method includes maintaining a temperature ranging from 725 C to 925 C during the formation of the p-type (Al,In,Ga)N waveguide material, although there may be variations. In an example, the predetermined process condition is substantially free from molecular H2 gas.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: October 8, 2019
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Po Shan Hsu, Melvin McLaurin, Thiago P. Melo, James W. Raring
  • Patent number: 10297979
    Abstract: In an example, the present invention provides a method for fabricating a light emitting device configured as a Group III-nitride based laser device. The method also includes forming a gallium containing epitaxial material overlying the surface region of a substrate member. The method includes forming a p-type (Al,In,Ga)N waveguiding material overlying the gallium containing epitaxial material under a predetermined process condition. The method includes maintaining the predetermined process condition such that an environment surrounding a growth of the p-type (Al,In,Ga)N waveguide material is substantially a molecular N2 rich gas environment. The method includes maintaining a temperature ranging from 725 C to 925 C during the formation of the p-type (Al,In,Ga)N waveguide material, although there may be variations. In an example, the predetermined process condition is substantially free from molecular H2 gas.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: May 21, 2019
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Po Shan Hsu, Melvin McLaurin, Thiago P. Melo, James W. Raring
  • Patent number: 10186841
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: January 22, 2019
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt
  • Patent number: 9972974
    Abstract: In an example, the present invention provides a method for fabricating a light emitting device configured as a Group III-nitride based laser device. The method also includes forming a gallium containing epitaxial material overlying the surface region of a substrate member. The method includes forming a p-type (Al,In,Ga)N waveguiding material overlying the gallium containing epitaxial material under a predetermined process condition. The method includes maintaining the predetermined process condition such that an environment surrounding a growth of the p-type (Al,In,Ga)N waveguide material is substantially a molecular N2 rich gas environment. The method includes maintaining a temperature ranging from 725 C to 925 C during the formation of the p-type (Al,In,Ga)N waveguide material, although there may be variations. In an example, the predetermined process condition is substantially free from molecular H2 gas.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: May 15, 2018
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Po Shan Hsu, Melvin McLaurin, Thiago P. Melo, James W. Raring
  • Patent number: 9887517
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: February 6, 2018
    Assignee: SORAA LASER DIODE, INC.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt
  • Patent number: 9564736
    Abstract: In an example, the present invention provides a method for fabricating a light emitting device configured as a Group III-nitride based laser device. The method also includes forming a gallium containing epitaxial material overlying the surface region of a substrate member. The method includes forming a p-type (Al,In,Ga)N waveguiding material overlying the gallium containing epitaxial material under a predetermined process condition. The method includes maintaining the predetermined process condition such that an environment surrounding a growth of the p-type (Al,In,Ga)N waveguide material is substantially a molecular N2 rich gas environment. The method includes maintaining a temperature ranging from 725 C to 925 C during the formation of the p-type (Al,In,Ga)N waveguide material, although there may be variations. In an example, the predetermined process condition is substantially free from molecular H2 gas.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: February 7, 2017
    Assignee: SORAA LASER DIODE, INC.
    Inventors: Po Shan Hsu, Melvin McLaurin, Thiago P. Melo, James W. Raring
  • Patent number: 9466949
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 11, 2016
    Assignee: SORAA LASER DIODE, INC.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt
  • Patent number: 9166372
    Abstract: A gallium and nitrogen containing laser diode device. The device has a gallium and nitrogen containing substrate material comprising a surface region. The surface region is configured on either a non-polar crystal orientation or a semi-polar crystal orientation. The device has a recessed region formed within a second region of the substrate material, the second region being between a first region and a third region. The recessed region is configured to block a plurality of defects from migrating from the first region to the third region. The device has an epitaxially formed gallium and nitrogen containing region formed overlying the third region. The epitaxially formed gallium and nitrogen containing region is substantially free from defects migrating from the first region and an active region formed overlying the third region.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 20, 2015
    Assignee: Soraa Laser Diode, Inc.
    Inventors: Melvin McLaurin, James W. Raring, Christiane Elsass, Thiago P. Melo, Mathew C. Schmidt