Patents by Inventor Rafael Aldaz

Rafael Aldaz 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: 20210050480
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: June 22, 2020
    Publication date: February 18, 2021
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 10693041
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 23, 2020
    Assignee: SORAA, INC.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 10529902
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: January 7, 2020
    Assignee: SORAA, INC.
    Inventors: Aurelien J. F. David, Rafael Aldaz, Michael Ragan Krames, Frank M. Steranka, Kevin Huang, Troy Trottier
  • Publication number: 20190165212
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: October 23, 2018
    Publication date: May 30, 2019
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Publication number: 20190044028
    Abstract: A method of fabricating LEDs from a wafer comprising a substrate and epitaxial layers and having a substrate side and a epitaxial side, said method comprising: (a) applying a laser beam across at least one of said substrate side or said epitaxial side of said wafer to define at least one laser-scribed recess having a laser-machined surface; and (b) singulating said wafer along said laser-scribed recess to form singulated LEDs, said singulated LEDs having a top surface, a bottom surface, and a plurality of sidewalls, at least one of said sidewalls comprising at least a first portion comprising at least a portion of said laser-machined surface.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 7, 2019
    Inventors: RAFAEL ALDAZ, AURELIEN J.F. DAVID, DANIEL F. FEEZELL, THOMAS M. KATONA, RAJAT SHARMA, MICHAEL J. CICH
  • Publication number: 20190035989
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 31, 2019
    Inventors: Aurelien J.F. David, Rafael Aldaz, Michael Ragan Krames, Frank M. Steranka, Kevin Huang, Troy Trottier
  • Patent number: 10115865
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: October 30, 2018
    Assignee: Soraa, Inc.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 10084121
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 25, 2018
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Rafael Aldaz, Michael Ragan Krames, Frank M. Steranka, Kevin Huang, Troy Trottier
  • Patent number: 10043946
    Abstract: A method of fabricating LEDs from a wafer comprising a substrate and epitaxial layers and having a substrate side and a epitaxial side, said method comprising: (a) applying a laser beam across at least one of said substrate side or said epitaxial side of said wafer to define at least one laser-scribed recess having a laser-machined surface; and (b) singulating said wafer along said laser-scribed recess to form singulated LEDs, said singulated LEDs having a top surface, a bottom surface, and a plurality of sidewalls, at least one of said sidewalls comprising at least a first portion comprising at least a portion of said laser-machined surface.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: August 7, 2018
    Assignee: Soraa, Inc.
    Inventors: Rafael Aldaz, Aurelien J. F. David, Daniel F. Feezell, Thomas M. Katona, Rajat Sharma, Michael J. Cich
  • Publication number: 20180053878
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 22, 2018
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 9831388
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: November 28, 2017
    Assignee: Soraa, Inc.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Publication number: 20170324010
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 9, 2017
    Inventors: AURELIEN J.F. DAVID, RAFAEL ALDAZ, MICHAEL RAGAN KRAMES, FRANK M. STERANKA, KEVIN HUANG, TROY TROTTIER
  • Patent number: 9761763
    Abstract: Techniques for fabricating and using arrays of violet-emitting LEDs coated with densely-packed-luminescent-material layers together with apparatus and method embodiments thereto are disclosed.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 12, 2017
    Assignee: Soraa, Inc.
    Inventors: Frank M. Steranka, Rafael Aldaz, Seshasayee Ankireddi, Troy Trottier, Rohit Modi, Rajarshi Saha
  • Publication number: 20170141268
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 18, 2017
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 9583678
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: February 28, 2017
    Assignee: Soraa, Inc.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Publication number: 20160351761
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventors: AURELIEN J.F. DAVID, RAFAEL ALDAZ, MICHAEL RAGAN KRAMES, FRANK M. STERANKA, KEVIN HUANG, TROY TROTTIER
  • Publication number: 20160343908
    Abstract: A method of fabricating LEDs from a wafer comprising a substrate and epitaxial layers and having a substrate side and a epitaxial side, said method comprising: (a) applying a laser beam across at least one of said substrate side or said epitaxial side of said wafer to define at least one laser-scribed recess having a laser-machined surface; and (b) singulating said wafer along said laser-scribed recess to form singulated LEDs, said singulated LEDs having a top surface, a bottom surface, and a plurality of sidewalls, at least one of said sidewalls comprising at least a first portion comprising at least a portion of said laser-machined surface.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: RAFAEL ALDAZ, AURELIEN J.F. DAVID, DANIEL F. FEEZELL, THOMAS M. KATONA, RAJAT SHARMA, MICHAEL J. CICH
  • Patent number: 9419189
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 16, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Rafael Aldaz, Michael Ragan Krames, Frank M. Steranka, Kevin Huang, Troy Trottier
  • Patent number: 9406843
    Abstract: Embodiments of the present disclosures are directed to improved approaches for achieving high-performance light extraction from a Group III-nitride volumetric LED chips. More particularly, disclosed herein are techniques for achieving high-performance light extraction from a Group III-nitride volumetric LED chip using surface and sidewall roughening.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 2, 2016
    Assignee: Soraa, Inc.
    Inventors: Rafael Aldaz, Aurelien J. F. David, Daniel F. Feezell, Thomas M. Katona, Rajat Sharma
  • Publication number: 20150207032
    Abstract: Embodiments of the present disclosures are directed to improved approaches for achieving high-performance light extraction from a Group III-nitride volumetric LED chips. More particularly, disclosed herein are techniques for achieving high-performance light extraction from a Group III-nitride volumetric LED chip using surface and sidewall roughening.
    Type: Application
    Filed: February 26, 2015
    Publication date: July 23, 2015
    Inventors: RAFAEL ALDAZ, AURELIEN J.F. DAVID, DANIEL F. FEEZELL, THOMAS M. KATONA, RAJAT SHARMA