Patents by Inventor Matthew H. Kim

Matthew H. Kim 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: 12183812
    Abstract: Methods of manufacturing heterojunction bipolar transistors are described herein. An exemplary method can include providing an emitter/base stack comprising a substrate, a base over the substrate, and/or an emitter over the base. The exemplary method further can include forming a collector. The exemplary method also can include wafer bonding the base to the collector. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: December 31, 2024
    Inventor: Matthew H. Kim
  • Publication number: 20230031642
    Abstract: A semiconductor device having a GeSiSn base region combined with an emitter region and a collector region can be used to fabricate a bipolar transistor or a heterojunction bipolar transistor. The GeSiSn base region can be compositionally graded or latticed matched or strained to GaAs. The GeSiSn base region can be wafer bonded to a GaN or SiC collector region.
    Type: Application
    Filed: September 26, 2022
    Publication date: February 2, 2023
    Inventor: Matthew H. Kim
  • Patent number: 11456374
    Abstract: The methods of manufacture of GeSiSn heterojunction bipolar transistors, which include light emitting transistors and transistor lasers and photo-transistors and their related structures are described herein. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: September 27, 2022
    Inventor: Matthew H. Kim
  • Publication number: 20220278228
    Abstract: Methods of manufacturing heterojunction bipolar transistors are described herein. An exemplary method can include providing an emitter/base stack comprising a substrate, a base over the substrate, and/or an emitter over the base. The exemplary method further can include forming a collector. The exemplary method also can include wafer bonding the base to the collector. Other embodiments are also disclosed herein.
    Type: Application
    Filed: May 9, 2022
    Publication date: September 1, 2022
    Inventor: Matthew H. Kim
  • Patent number: 11335794
    Abstract: Methods of manufacturing a heterojunction bipolar transistor are described herein. An exemplary method can include providing a base/emitter stack, the base/emitter stack comprising a substrate, an etch stop layer over the substrate, an emitter contact layer over the etch stop layer, an emitter over the emitter contact layer, and/or a base over the emitter. The exemplary method further can include forming a collector. The exemplary method also can include wafer bonding the base to the collector. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: May 17, 2022
    Inventor: Matthew H. Kim
  • Patent number: 11239348
    Abstract: Wafer bonded GaN monolithic integrated circuits and methods of manufacture of wafer bonded GaN monolithic integrated circuits and their related structures for electronic and photonic integrated circuits and for multi-functional integrated circuits, are described herein. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: February 1, 2022
    Inventor: Matthew H. Kim
  • Publication number: 20200119172
    Abstract: Methods of manufacturing a heterojunction bipolar transistor are described herein. An exemplary method can include providing a base/emitter stack, the base/emitter stack comprising a substrate, an etch stop layer over the substrate, an emitter contact layer over the etch stop layer, an emitter over the emitter contact layer, and/or a base over the emitter. The exemplary method further can include forming a collector. The exemplary method also can include wafer bonding the base to the collector. Other embodiments are also disclosed herein.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 16, 2020
    Inventor: Matthew H. Kim
  • Patent number: 10505026
    Abstract: Methods of manufacture of advanced electronic and photonic structures including heterojunction transistors, transistor lasers and solar cells and their related structures, are described herein. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 10, 2019
    Inventor: Matthew H. Kim
  • Publication number: 20190296131
    Abstract: The methods of manufacture of GeSiSn heterojunction bipolar transistors, which include light emitting transistors and transistor lasers and photo-transistors and their related structures are described herein. Other embodiments are also disclosed herein.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 26, 2019
    Inventor: Matthew H. Kim
  • Publication number: 20190115459
    Abstract: Wafer bonded GaN monolithic integrated circuits and methods of manufacture of wafer bonded GaN monolithic integrated circuits and their related structures for electronic and photonic integrated circuits and for multi-functional integrated circuits, are described herein. Other embodiments are also disclosed herein.
    Type: Application
    Filed: December 6, 2018
    Publication date: April 18, 2019
    Inventor: Matthew H. Kim
  • Publication number: 20170263736
    Abstract: Methods of manufacture of advanced electronic and photonic structures including heterojunction transistors, transistor lasers and solar cells and their related structures, are described herein. Other embodiments are also disclosed herein.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 14, 2017
    Inventor: Matthew H. Kim
  • Patent number: 9666702
    Abstract: Methods of manufacture of advanced electronic and photonic structures including heterojunction transistors, transistor lasers and solar cells and their related structures, are described herein. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: May 30, 2017
    Inventor: Matthew H. Kim
  • Patent number: 9437772
    Abstract: Methods of manufacture of advanced heterojunction transistors and transistor lasers, and their related structures, are described herein. Other embodiments are also disclosed herein.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: September 6, 2016
    Inventor: Matthew H. Kim
  • Patent number: 9153937
    Abstract: This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method. The laser includes of a tunable material that is sensitive to stress and/or strain. Stress and/or strain applied to the laser from the tuning material results in an electronically variable output wavelength. As an example, applying a voltage to a piezoelectric base that serves as a tuning material can cause the base to expand or contract, and the expansions and contractions from the base are coupled to the tunable material of the laser, thus varying the wavelength of the output light from the laser.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: October 6, 2015
    Inventor: Matthew H. Kim
  • Publication number: 20150014632
    Abstract: Methods of manufacture of advanced electronic and photonic structures including heterojunction transistors, transistor lasers and solar cells and their related structures, are described herein. Other embodiments are also disclosed herein.
    Type: Application
    Filed: October 1, 2014
    Publication date: January 15, 2015
    Inventor: Matthew H. Kim
  • Publication number: 20140294024
    Abstract: This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method. The laser includes of a tunable material that is sensitive to stress and/or strain. Stress and/or strain applied to the laser from the tuning material results in an electronically variable output wavelength. As an example, applying a voltage to a piezoelectric base that serves as a tuning material can cause the base to expand or contract, and the expansions and contractions from the base are coupled to the tunable material of the laser, thus varying the wavelength of the output light from the laser.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 2, 2014
    Inventor: Matthew H. Kim
  • Patent number: 8792523
    Abstract: This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method. The laser includes of a tunable material that is sensitive to stress and/or strain. Stress and/or strain applied to the laser from the tuning material results in an electronically variable output wavelength. As an example, applying a voltage to a piezoelectric base that serves as a tuning material can cause the base to expand or contract, and the expansions and contractions from the base are coupled to the tunable material of the laser, thus varying the wavelength of the output light from the laser.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: July 29, 2014
    Assignee: QuantTera, LLC
    Inventor: Matthew H. Kim
  • Patent number: 8437374
    Abstract: This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method. The laser includes of a tunable material that is sensitive to stress and/or strain. Stress and/or strain applied to the laser from the tuning material results in an electronically variable output wavelength. As an example, applying a voltage to a piezoelectric base that serves as a tuning material can cause the base to expand or contract, and the expansions and contractions from the base are coupled to the tunable material of the laser, thus varying the wavelength of the output light from the laser.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: May 7, 2013
    Inventor: Matthew H. Kim
  • Patent number: 7830926
    Abstract: This description relates to an apparatus, a method of manufacturing, and a method of tuning optical and/or electrical parameters of semiconductor devices and materials, thin film materials, or other devices. In one example, a laser is tuned to produce an adjustable output wavelength by coupling the laser to a tuning material or base such as, for example, a piezoelectric base using a suitable attachment method. The laser includes of a tunable material that is sensitive to stress and/or strain. Stress and/or strain applied to the laser from the tuning material results in an electronically variable output wavelength. As an example, applying a voltage to a piezoelectric base that serves as a tuning material can cause the base to expand or contract, and the expansions and contractions from the base are coupled to the tunable material of the laser, thus varying the wavelength of the output light from the laser.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: November 9, 2010
    Inventor: Matthew H. Kim