Patents by Inventor Sien Kang

Sien Kang 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: 20190103507
    Abstract: Embodiments transfer thin layers of material utilized in electronic devices (e.g., GaN for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor. Some embodiments may rely upon release by converting components from solid to liquid under carefully controlled thermal conditions (e.g., solder-based materials and/or thermal decomposition of Indium-containing materials). Some embodiments utilize laser-induced film release processes using epitaxially grown or implanted regions as an optically absorptive region. A single bond-and-release sequence may involve processing an exposed N-face of GaN material. Multiple bond-and-release sequences (involving processing an exposed Ga-face of GaN material) may be employed in series, for example utilizing a temporary handle substrate as an intermediary.
    Type: Application
    Filed: November 13, 2018
    Publication date: April 4, 2019
    Inventors: Francois J. HENLEY, Sien KANG, Mingyu ZHONG, Minghang LI
  • Publication number: 20190024259
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate. In particular embodiments, a bulk substrate (e.g. donor substrate) having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise Si, SiC, or other materials. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 24, 2019
    Inventors: Francois J. HENLEY, Sien KANG, Albert LAMM
  • Patent number: 10164144
    Abstract: Embodiments transfer thin layers of material utilized in electronic devices (e.g., GaN for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor. Some embodiments may rely upon release by converting components from solid to liquid under carefully controlled thermal conditions (e.g., solder-based materials and/or thermal decomposition of Indium-containing materials). Some embodiments utilize laser-induced film release processes using epitaxially grown or implanted regions as an optically absorptive region. A single bond-and-release sequence may involve processing an exposed N-face of GaN material. Multiple bond-and-release sequences (involving processing an exposed Ga-face of GaN material) may be employed in series, for example utilizing a temporary handle substrate as an intermediary.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: December 25, 2018
    Assignee: QMAT, Inc.
    Inventors: Francois J. Henley, Sien Kang, Mingyu Zhong, Minghang Li
  • Patent number: 10041187
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate. In particular embodiments, a bulk substrate (e.g. donor substrate) having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise Si, SiC, or other materials. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: August 7, 2018
    Assignee: QMAT, INC.
    Inventors: Francois J. Henley, Sien Kang, Albert Lamm
  • Publication number: 20180040765
    Abstract: Embodiments transfer thin layers of material utilized in electronic devices (e.g., GaN for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor. Some embodiments may rely upon release by converting components from solid to liquid under carefully controlled thermal conditions (e.g., solder-based materials and/or thermal decomposition of Indium-containing materials). Some embodiments utilize laser-induced film release processes using epitaxially grown or implanted regions as an optically absorptive region. A single bond-and-release sequence may involve processing an exposed N-face of GaN material. Multiple bond-and-release sequences (involving processing an exposed Ga-face of GaN material) may be employed in series, for example utilizing a temporary handle substrate as an intermediary.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 8, 2018
    Inventors: Francois J. HENLEY, Sien KANG, Mingyu ZHONG, Minghang LI
  • Patent number: 9859458
    Abstract: Embodiments transfer thin layers of material utilized in electronic devices (e.g., GaN for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor. Some embodiments may rely upon release by converting components from solid to liquid under carefully controlled thermal conditions (e.g., solder-based materials and/or thermal decomposition of Indium-containing materials). Some embodiments utilize laser-induced film release processes using epitaxially grown or implanted regions as an optically absorptive region. A single bond-and-release sequence may involve processing an exposed N-face of GaN material. Multiple bond-and-release sequences (involving processing an exposed Ga-face of GaN material) may be employed in series, for example utilizing a temporary handle substrate as an intermediary.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: January 2, 2018
    Assignee: QMAT, INC.
    Inventors: Francois J. Henley, Sien Kang, Mingyu Zhong, Minghang Li
  • Publication number: 20170358704
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate are described. In particular embodiments, a bulk substrate having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise (111) single crystal silicon. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: June 29, 2017
    Publication date: December 14, 2017
    Inventors: Francois J. HENLEY, Sien KANG, Albert LAMM
  • Publication number: 20170084778
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate are described. In particular embodiments, a bulk substrate having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise (111) single crystal silicon. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Inventors: Francois J. HENLEY, Sien KANG, Albert LAMM
  • Publication number: 20160372628
    Abstract: Embodiments transfer thin layers of material utilized in electronic devices (e.g., GaN for optoelectronic devices), from a donor to a handle substrate. Certain embodiments employ bond-and-release system(s) where release occurs along a cleave plane formed by implantation of particles into the donor. Some embodiments may rely upon release by converting components from solid to liquid under carefully controlled thermal conditions (e.g., solder-based materials and/or thermal decomposition of Indium-containing materials). Some embodiments utilize laser-induced film release processes using epitaxially grown or implanted regions as an optically absorptive region. A single bond-and-release sequence may involve processing an exposed N-face of GaN material. Multiple bond-and-release sequences (involving processing an exposed Ga-face of GaN material) may be employed in series, for example utilizing a temporary handle substrate as an intermediary.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 22, 2016
    Inventors: Francois J. HENLEY, Sien KANG, Mingyu ZHONG, Minghang LI
  • Publication number: 20160111500
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate are described. In particular embodiments, a bulk substrate having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise (111) single crystal silicon. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Inventors: Francois J. HENLEY, Sien KANG, Albert LAMM
  • Patent number: 9257339
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate are described. In particular embodiments, a bulk substrate having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise (111) single crystal silicon. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: February 9, 2016
    Assignee: SILICON GENESIS CORPORATION
    Inventors: Francois J. Henley, Sien Kang, Albert Lamm
  • Publication number: 20140197419
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate. In particular embodiments, a bulk substrate (e.g. donor substrate) having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise Si, SiC, or other materials. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 17, 2014
    Applicant: QMAT, Inc.
    Inventors: Francois J. HENLEY, Sien KANG, Albert LAMM
  • Publication number: 20130292691
    Abstract: Embodiments relate to use of a particle accelerator beam to form thin films of material from a bulk substrate are described. In particular embodiments, a bulk substrate having a top surface is exposed to a beam of accelerated particles. In certain embodiments, this bulk substrate may comprise GaN; in other embodiments this bulk substrate may comprise (111) single crystal silicon. Then, a thin film or wafer of material is separated from the bulk substrate by performing a controlled cleaving process along a cleave region formed by particles implanted from the beam. In certain embodiments this separated material is incorporated directly into an optoelectronic device, for example a GaN film cleaved from GaN bulk material. In some embodiments, this separated material may be employed as a template for further growth of semiconductor materials (e.g. GaN) that are useful for optoelectronic devices.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 7, 2013
    Applicant: Silicon Genesis Corporation
    Inventors: Francois J. Henley, Sien Kang, Albert Lamm
  • Patent number: 8133800
    Abstract: A method of fabricating a thickness of silicon material includes providing a silicon ingot material having a surface region and introducing a plurality of particles having an energy of about 1-5 MeV through the surface region to a depth to define a cleave region and a thickness of detachable material between the cleave region and the surface region. Additionally, the method includes processing the silicon ingot material to free the thickness of detachable material at a vicinity of the cleave region and causing formation of a free-standing thickness of material characterized by a carrier lifetime about 10 microseconds and a thickness ranging from about 20 microns to about 150 microns with a thickness variation of less than about five percent. Furthermore, the method includes treating the free-standing thickness of material using a thermal treatment process to recover the carrier lifetime to about 200 microseconds and greater.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: March 13, 2012
    Assignee: Silicon Genesis Corporation
    Inventors: Francois J. Henley, Sien Kang, Zuqin Liu, Lu Tian
  • Publication number: 20100052105
    Abstract: A method of fabricating a thickness of silicon material includes providing a silicon ingot material having a surface region and introducing a plurality of particles having an energy of about 1-5 MeV through the surface region to a depth to define a cleave region and a thickness of detachable material between the cleave region and the surface region. Additionally, the method includes processing the silicon ingot material to free the thickness of detachable material at a vicinity of the cleave region and causing formation of a free-standing thickness of material characterized by a carrier lifetime about 10 microseconds and a thickness ranging from about 20 microns to about 150 microns with a thickness variation of less than about five percent. Furthermore, the method includes treating the free-standing thickness of material using a thermal treatment process to recover the carrier lifetime to about 200 microseconds and greater.
    Type: Application
    Filed: July 23, 2009
    Publication date: March 4, 2010
    Applicant: Silicon Genesis Corporation
    Inventors: Francois J. Henley, Sien Kang, Zuqin Liu, Lu Tian
  • Publication number: 20090152162
    Abstract: A carrier apparatus for holding a shaped sheet material includes a first frame structure with a first front surface including a first outer peripheral region and a first inner peripheral region separated by a first step. The apparatus further includes a second frame structure with a second front surface including a second outer peripheral region and a second inner peripheral region separated by a second step. The second front surface is configured to engage with the first front surface so that the second outer peripheral region is at least partially in contact with the first outer peripheral region and the second step circumferentially mates the first step with the second inner peripheral region opposing to the first inner peripheral region by a gap. The carrier apparatus further includes one or more locking mechanisms and a shaped wing structure extended from outer peripheral edge of the first frame structure.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 18, 2009
    Applicant: Silicon Genesis Corporation
    Inventors: LU TIAN, Sien Kang, Ky Phan
  • Publication number: 20070259526
    Abstract: A method for treating a film of material, which can be defined on a substrate, e.g., silicon. The method includes providing a substrate comprising a cleaved surface, which is characterized by a predetermined surface roughness value. The substrate also has a distribution of hydrogen bearing particles defined from the cleaved surface to a region underlying said cleaved surface. The method also includes increasing a temperature of the cleaved surface to greater than about 1,000 Degrees Celsius while maintaining the cleaved surface in an etchant bearing environment to reduce the predetermined surface roughness value by about fifty percent and greater. Preferably, the value can be reduced by about eighty or ninety percent and greater, depending upon the embodiment.
    Type: Application
    Filed: July 11, 2007
    Publication date: November 8, 2007
    Applicant: Silicon Genesis Corporation
    Inventors: Sien Kang, Igor Malik
  • Publication number: 20070232022
    Abstract: A method for fabricating bonded substrate structures, e.g., silicon on silicon. In a specific embodiment, the method includes providing a thickness of single crystal silicon material transferred from a first silicon substrate coupled to a second silicon substrate. In a specific embodiment, the second silicon substrate has a second surface region that is joined to a first surface region from the thickness of single crystal silicon material to form of an interface region having a first characteristic including a silicon oxide material between the thickness of single crystal silicon material and the second silicon substrate. The method includes subjecting the interface region to a thermal process to cause a change to the interface region from the first characteristic to a second characteristic.
    Type: Application
    Filed: March 31, 2006
    Publication date: October 4, 2007
    Applicant: Silicon Genesis Corporation
    Inventors: Francois Henley, James Sullivan, Sien Kang, Philip Ong, Harry Kirk, David Jacy, Igor Malik