Patents by Inventor Decai Sun

Decai Sun 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: 7274040
    Abstract: A light emitting device includes a substrate, a doped substrate layer, a layer of first conductivity type overlying the doped substrate layer, a light emitting layer overlying the layer of first conductivity type, and a layer of second conductivity type overlying the light emitting layer. A conductive transparent layer, e.g., of indium tin oxide, and a reflective metal layer overlie the layer of second conductivity type and provide electrical contact with the layer of second conductivity type. A plurality of vias may be formed in the reflective metal and conductive transparent layer as well as the layer of second conductivity type, down to the doped substrate layer. A plurality of contacts are formed in the vias and are in electrical contact with the doped substrate layer. An insulating layer formed over the reflective metal layer insulates the plurality of contacts from the conductive transparent layer and reflective metal layer.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: September 25, 2007
    Assignee: Philips Lumileds Lighting Company, LLC
    Inventor: Decai Sun
  • Patent number: 7195939
    Abstract: Semiconductor devices in an optoelectronic integrated circuit are electrically isolated from each other by using planar lateral oxidation to oxidize a buried semiconductor layer vertically separating the semiconductor devices.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: March 27, 2007
    Assignee: Xerox Corporation
    Inventors: Christopher L. Chua, Philip D. Floyd, Thomas L. Paoli, Decai Sun
  • Publication number: 20070057271
    Abstract: A semiconductor light emitting device including a light emitting layer disposed between an n-type region and a p-type region and contacts electrically connected to the n-type region and the p-type region is connected to a mount. A metal layer arbitrarily patterned to cover at least 20% of the area of the semiconductor light emitting device is plated on either a metal layer formed on the mount or a metal layer formed on one of the contacts. The plated metal layer may replace other known interconnecting techniques such as stud bumps. The semiconductor light emitting device is physically connected to the mount by causing interdiffusion between the contact surfaces of the metal layers. In some embodiments, a layer of solder is formed over the plated metal layer, and then the semiconductor light emitting device is physically connected to the mount by heating the solder.
    Type: Application
    Filed: September 13, 2005
    Publication date: March 15, 2007
    Inventors: Stefano Schiaffino, Ashim Haque, Paul Martin, Daniel Steigerwald, Decai Sun
  • Patent number: 7120182
    Abstract: An array of light emitters includes a plurality of light emitting structures formed over a layered structure with at least one quantum well layer. At least one cladding layer is formed on over the at least one quantum well layer. At least one waveguide layer is formed on or over the at least one cladding layer. At least one isolation region is formed at least in between at least two of the plurality of light emitting structures. The at least one isolation region isolates the at least two light emitting structures from each other.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Palo Alto Research Center, Inc.
    Inventors: Christopher L. Chua, Decai Sun
  • Patent number: 7106441
    Abstract: A tunable microelectromechanical (MEMS) spectrophotometer with a rotating cylindrical reflective diffraction grating is integrated with a photodetector and an optical fiber light source on a Rowland circle on a monolithic silicon substrate.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 12, 2006
    Assignee: Xerox Corporation
    Inventors: Decai Sun, Joel A. Kubby, Jingkuang Chen, Alex T. Tran, Patrick Y. Maeda
  • Patent number: 7042015
    Abstract: A light-producing device integrated with a power monitoring system include a light-producing device from which light is emitted in wavelengths that can range from approximately 700 nm to approximately 3 microns. A semi-transparent sensor is located such that at least a portion of the light emitted passes through the semi-transparent sensor and at least a portion of light is absorbed by the semi-transparent sensor. The semi-transparent sensor is configured to be semi-transparent at wavelengths that can range from 700 nm to 3 microns. The semi-transparent sensor may also be used with an external light source, for example with fiber-optic cables.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: May 9, 2006
    Assignee: Xerox Corporation
    Inventors: Decai Sun, Eric Peeters, Christopher L. Chua, Francesco Lemmi, Patrick Y. Maeda, Scott Solberg
  • Patent number: 7026653
    Abstract: III-nitride or III-phosphide light emitting devices include a light emitting region disposed between a p-type region and an n-type region. At least one heavily doped layer is disposed within either the n-type region or the p-type region or both, to provide current spreading.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: April 11, 2006
    Assignee: Lumileds Lighting, U.S., LLC
    Inventor: Decai Sun
  • Publication number: 20060071228
    Abstract: A light emitting device includes a substrate, a doped substrate layer, a layer of first conductivity type overlying the doped substrate layer, a light emitting layer overlying the layer of first conductivity type, and a layer of second conductivity type overlying the light emitting layer. A conductive transparent layer, e.g., of indium tin oxide, and a reflective metal layer overlie the layer of second conductivity type and provide electrical contact with the layer of second conductivity type. A plurality of vias may be formed in the reflective metal and conductive transparent layer as well as the layer of second conductivity type, down to the doped substrate layer. A plurality of contacts are formed in the vias and are in electrical contact with the doped substrate layer. An insulating layer formed over the reflective metal layer insulates the plurality of contacts from the conductive transparent layer and reflective metal layer.
    Type: Application
    Filed: October 6, 2004
    Publication date: April 6, 2006
    Applicant: Lumileds Lighting U.S., LLC
    Inventor: Decai Sun
  • Patent number: 7000315
    Abstract: An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member having an intrinsic stress profile. The intrinsic stress profile biases a free portion away from the substrate forming a loop winding. An anchor portion remains fixed to the substrate. The free portion end becomes a second anchor portion which may be connected to the substrate via soldering or plating. A series of individual coil structures can be joined via their anchor portions to form inductors and transformers.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: February 21, 2006
    Assignee: Xerox Corporation
    Inventors: Christopher L. Chua, Francesco Lemmi, Koenraad F. Van Schuylenbergh, Jeng Ping Lu, David K. Fork, Eric Peeters, Decai Sun, Donald L. Smith, Linda T. Romano
  • Publication number: 20050270135
    Abstract: An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member having an intrinsic stress profile. The intrinsic stress profile biases a free portion away from the substrate forming a loop winding. An anchor portion remains fixed to the substrate. The free portion end becomes a second anchor portion which may be connected to the substrate via soldering or plating. A series of individual coil structures can be joined via their anchor portions to form inductors and transformers.
    Type: Application
    Filed: August 4, 2005
    Publication date: December 8, 2005
    Inventors: Christopher Chua, Francesco Lemmi, Koenraad Van Schuylenbergh, Jeng Lu, David Fork, Eric Peeters, Decai Sun, Donald Smith, Linda Romano
  • Patent number: 6947291
    Abstract: An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member having an intrinsic stress profile. The intrinsic stress profile biases a free portion away from the substrate forming a loop winding. An anchor portion remains fixed to the substrate. The free portion end becomes a second anchor portion which may be connected to the substrate via soldering or plating. A series of individual coil structures can be joined via their anchor portions to form inductors and transformers.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 20, 2005
    Assignee: Xerox Corporation
    Inventors: Christopher L. Chua, Francesco Lemmi, Koenraad F. Van Schuylenbergh, Jeng Ping Lu, David K. Fork, Eric Peeters, Decai Sun, Donald L. Smith, Linda T. Romano
  • Publication number: 20050161679
    Abstract: III-nitride or III-phosphide light emitting devices include a light emitting region disposed between a p-type region and an n-type region. At least one heavily doped layer is disposed within either the n-type region or the p-type region or both, to provide current spreading.
    Type: Application
    Filed: January 27, 2004
    Publication date: July 28, 2005
    Inventor: Decai Sun
  • Publication number: 20050135448
    Abstract: An array of light emitters includes a plurality of light emitting structures formed over a layered structure with at least one quantum well layer. At least one cladding layer is formed on over the at least one quantum well layer. At least one waveguide layer is formed on or over the at least one cladding layer. At least one isolation region is formed at least in between at least two of the plurality of light emitting structures.
    Type: Application
    Filed: December 19, 2003
    Publication date: June 23, 2005
    Applicant: PALO ALTO RESEARCH CENTER, INCORPORATED
    Inventors: Christopher Chua, Decai Sun
  • Patent number: 6856225
    Abstract: An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic member having an intrinsic stress profile. The intrinsic stress profile biases a free portion away from the substrate forming a loop winding. An anchor portion remains fixed to the substrate. The free portion end becomes a second anchor portion which may be connected to the substrate via soldering or plating. A series of individual coil structures can be joined via their anchor portions to form inductors and transformers.
    Type: Grant
    Filed: May 17, 2000
    Date of Patent: February 15, 2005
    Assignee: Xerox Corporation
    Inventors: Christopher L. Chua, Francesco Lemmi, Koenraad F. Van Schuylenbergh, Jeng Ping Lu, David K. Fork, Eric Peeters, Decai Sun, Donald L. Smith, Linda T. Romano
  • Patent number: 6844214
    Abstract: A microelectromechanical system (MEMS) based sensor comprises: a substrate defining a plane; a first conductive material layer having a first stress, a first portion of the first conductive material layer being connected to the substrate and extending in a substantially parallel direction to the plane defined by the substrate and a second portion being disconnected from the substrate and extending in a substantially non-parallel direction to the plane defined by the substrate; and a sensor material layer formed over at least the second portion of the first conductive material layer, the sensor material layer having a second stress that is less than the first stress of the first conductive material layer. The stresses form a stress gradient that bends the second portion of the first conductive material layer and the sensor material layer formed over the second portion of the first conductive material layer away from the substrate.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: January 18, 2005
    Assignee: Xerox, Corporation
    Inventors: Ping Mei, Decai Sun, Robert A. Street
  • Publication number: 20040145738
    Abstract: A tunable microelectromechanical (MEMS) spectrophotometer with a rotating cylindrical reflective diffraction grating is integrated with a photodetector and an optical fiber light source on a Rowland circle on a monolithic silicon substrate.
    Type: Application
    Filed: September 26, 2003
    Publication date: July 29, 2004
    Applicant: Xerox Corporation
    Inventors: Decai Sun, Joel A. Kubby, Jingkuang Chen, Alex T. Tran, Patrick Y. Maeda
  • Patent number: 6756545
    Abstract: Provided is a ribbon structure which may be used as part of a micro-assembly including a micro-device formed on or in a device layer of a single crystal silicon substrate. The ribbon structure is also formed in the device layer, where the ribbon structure is thinned to a thickness less than the thickness of the micro-device. The ribbon structure has an electrical conductive material deposited on its surface. When implemented as part of the micro-assembly, a first end of the micro-device and a first end of a ribbon structure are interconnected, wherein the ribbon structure and out-of-plane device are formed as a single piece.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: June 29, 2004
    Assignee: Xerox Corporation
    Inventors: Decai Sun, Michel A. Rosa
  • Patent number: 6706202
    Abstract: A method is disclosed for making shaped optical moems components with stressed thin films. In particular, stressed thin films are used to make mirror structures.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: March 16, 2004
    Assignee: Xerox Corporation
    Inventors: Decai Sun, Michel A. Rosa, Eric Peeters, Francesco Lemmi, Patrick Y. Maeda, Christopher L. Chua
  • Patent number: RE39261
    Abstract: A solid state laser beam scanning system having a single crystal silicon deflection and scanning mirror integrated with a laser diode. By combining the techniques of deep reactive ion etching of silicon with solder bump bonding techniques, completed and tested laser diodes are integrated with silicon substrates supporting micro-electro-mechanical systems layers.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: September 5, 2006
    Assignee: Xerox Corporation
    Inventors: Philip D. Floyd, Decai Sun, Joel A. Kubby
  • Patent number: RE38437
    Abstract: An solid state scanning system having a single crystal silicon deflection mirror and scanning mirror is integrated with a light source. Separation of the micro-electro-mechanical systems and light emitters on separate substrates allows the use of flip-chip and solder bump bonding techniques for mounting of the light sources. The separate substrates are subsequently full wafer bonded together to create an integrated solid state scanning system.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 24, 2004
    Assignee: Xerox Corporation
    Inventors: Philip D. Floyd, Decai Sun, Joel A. Kubby