Patents by Inventor Xiao Zhang

Xiao Zhang 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: 20060180931
    Abstract: A semiconductor package and method for making a semiconductor package are disclosed. The semiconductor package has a top surface and a mounting surface and includes a die, a conducting connecting material, a plating material and an insulating material. The die has a processed surface facing towards the mounting surface of the semiconductor package. Exposed metal connections are at the processed surface of the die. The conducting connecting material is disposed on the exposed metal connections. The plating material is in contact with the conducting connecting material. The insulating material is formed around the conducting connecting material, and the plating material extends to the exterior of the insulating material.
    Type: Application
    Filed: February 15, 2005
    Publication date: August 17, 2006
    Inventors: Leeshawn Luo, Kai Liu, Ming Sun, Xiao Zhang
  • Publication number: 20060145319
    Abstract: This invention discloses a power device package for containing, protecting and providing electrical contacts for a power transistor. The power device package includes a top and bottom lead frames for directly no-bump attaching to the power transistor. The power transistor is attached to the bottom lead frame as a flip-chip with a source contact and a gate contact directly no-bumping attaching to the bottom lead frame. The power transistor has a bottom drain contact attaching to the top lead frame. The top lead frame further includes an extension for providing a bottom drain electrode substantially on a same side with the bottom lead frame. In a preferred embodiment, the power device package further includes a joint layer between device metal of source, gate or drain and top or bottom lead frame, through applying ultrasonic energy.
    Type: Application
    Filed: December 31, 2004
    Publication date: July 6, 2006
    Inventors: Ming Sun, Kai Liu, Xiao Zhang, Yueh Ho, Leeshawn Luo
  • Patent number: 7038849
    Abstract: Optical properties of a screen on which an image is being projected are considered. A patterned surface is given a predetermined pattern of color pixels whereby a degree of wavelength selectivity is employed to improve the color qualities of the projected image. A system is provided wherein there is a matching of emission characteristics of a projector to the screen's reflective characteristics.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: May 2, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Samuels, Nathan Moroney, Xiao-An Zhang, Zhang-Lin Zhou
  • Publication number: 20060051351
    Abstract: The invention concerns a novel neuregulin related ligand (NRG3) including fragments and variants thereof, as new members of the neuregulin family of compounds. The invention also concerns methods and means for producing NRG3. The native polypeptides of the invention are characterized by containing an extracellular domain including an EGF-like domain; a transmembrane domain and a cytoplasmic domain. Isolated nucleotide sequences encoding such polypeptides, expression vectors containing the nucleotide sequences, recombinant host cells transformed with the vectors, and methods for the recombinant production for the novel NRG3s are also within the scope of the invention.
    Type: Application
    Filed: October 21, 2005
    Publication date: March 9, 2006
    Inventors: Paul Godowski, Melanie Mark, Dong-Xiao Zhang
  • Patent number: 6994856
    Abstract: The invention concerns a novel neuregulin related ligand (NRG3) including fragments and variants thereof, as new members of the neuregulin family of compounds. The invention also concerns methods and means for producing NRG3. The native polypeptides of the invention are characterized by containing an extracellular domain including an EGF-like domain, a transmembrane domain and a cytoplasmic domain. Isolated nucleotide sequences encoding such polypeptides, expression vectors containing the nucleotide sequences, recombinant host cells transformed with the vectors, and methods for the recombinant production for the novel NRG3s are also within the scope of the invention.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: February 7, 2006
    Assignee: Genentech, Inc.
    Inventors: Paul J. Godowski, Melanie Rose Mark, Dong-Xiao Zhang
  • Patent number: 6995312
    Abstract: A bistable molecular switch can have a highly conjugated first state and a less conjugated second state. The bistable molecular switch can be configured such that application of an electric field reversibly switches the molecular switch from the first state to the second state. Additionally, the bistable molecular switch can include a hydrophobic moiety and a hydrophilic moiety. Such molecular switches can be incorporated into a thin film as part of a molecular switch system which can include a layer of molecular switches between a first electrode layer and a second electrode layer. The layer of molecular switches can have substantially all of the molecular switches having their hydrophilic moiety oriented in the same direction. An electric potential can then be induced between the first and second electrode layers sufficient to switch the molecular switches from the first or second state to the second or first state, respectively.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: February 7, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Sean Xiao-An Zhang
  • Publication number: 20060017141
    Abstract: A semiconductor package including a relatively thick lead frame having a plurality of leads and a first lead frame pad, the first lead frame pad including a die coupled thereto, bonding wires connecting the die to the plurality of leads, the bonding wires being aluminum, and a resin body encapsulating the die, bonding wires and at least a portion of the lead frame.
    Type: Application
    Filed: July 20, 2004
    Publication date: January 26, 2006
    Inventors: Leeshawn Luo, Anup Bhalla, Sik Lui, Yueh-Se Ho, Mike Chang, Xiao Zhang
  • Publication number: 20050280133
    Abstract: A semiconductor package and method of assembling a semiconductor package is disclosed. The semiconductor package includes a first device mounted on a leadframe and a second device mounted on the leadframe. The leadframe has leads extending to the exterior of the package. An anvil may be used to mount a device on the package. The anvil may include two side portions to support the leads of the package, two end portions connected to the two side portions, and a cutout region.
    Type: Application
    Filed: June 21, 2004
    Publication date: December 22, 2005
    Inventors: Leeshawn Luo, Anup Bhalla, Sik Lui, Yueh-Se Ho, Mike Chang, Xiao Zhang
  • Publication number: 20050274609
    Abstract: A composition of matter is provided that results in a change of electrical properties through intra-molecular charge transfer or inter-molecular charge transfer or charge transfer between a molecule and an electrode, wherein the charge transfer is induced by an electric field.
    Type: Application
    Filed: May 18, 2004
    Publication date: December 15, 2005
    Inventors: Yong Chen, Xiao-An Zhang, Alexandre Bratkovski, R. Williams
  • Patent number: 6951672
    Abstract: Ceramic pigment-based, chemically-modified porous coatings can be used for enhancing image permanence of ink-jet image printing. Specifically, a porous coated media sheet, comprising a media substrate, having a porous coating coated thereon comprising a modified ceramic pigment including a fixer group and a stabilizer group, each covalently attached to the ceramic pigment is disclosed. Additionally, a method and system for preparing permanent ink-jet images is also provided.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: October 4, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kent D. Vincent, Sivapackia Ganapathiappan, Sean Xiao-An Zhang, Palitha Wickramanayake
  • Patent number: 6947205
    Abstract: An electric field activated bi-stable molecular system configured within an electric field generated by a pair of electrodes is provided for use, e.g., as electronic ink or other visual displays. The molecular system has at least one rotor portion connected to at least one stator portion, wherein the rotor portion rotates with respect to the stator portion between at least two different states upon application of the electric field, thereby inducing a band gap change in the molecular system, wherein in a first state, there is extended conjugation throughout the major portion of the molecular system, resulting in a relatively smaller band gap, and wherein in a second state, the extended conjugation is destroyed, resulting in a relatively larger band gap. A primary advantage of the molecular system is improved contrast. Because the colorant of the present invention is molecular and thus effectively monoplanar, there should be no backside reflection or scattering from the colorant.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 20, 2005
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Xiao-An Zhang, R. Stanley Williams, Kent D. Vincent
  • Patent number: 6942312
    Abstract: Methods and apparatus for packing, including single pixel data strings, and playback tracking of informative data, e.g., audio signals, associated with graphics. To maximize the signal-to-noise ratio during data recovery, a Read sensor is kept substantially on-center of each data block throughout reading. A Print-and-Read ink-jet embodiment carriage mechanism in conjunction with the paper feed mechanism keeps the Read sensor on track center as misalignment information has been determined beforehand or in real time for active track servoing. Additional functionalities are incorporated in scanning ink-jet class of printers so that they can further operate as informative data recovery or retrieval systems for digitized data on graphical data images. In another embodiment, a digital camera itself is provided with additional functionalities to operate as a recovery and playback device for prints containing informative data.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: September 13, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sui-hing Leung, Xiao-An Zhang
  • Publication number: 20050194885
    Abstract: A phosphor of the general formula Eu(A)3?x(B)2x+2 where A is a ?-diketone and B is an organic phosphine oxide (R3PO—R?, aryl, alkylene acyl, phenyl and their derivatives. The phosphor being synthesize in a single step process where a lanthanide ion solution is added to a ?-diketone and organic phosphine oxide mixture. The phosphor having a high intensity red line emission at between 610 to 620 nm depending on ligand groups.
    Type: Application
    Filed: February 2, 2005
    Publication date: September 8, 2005
    Inventors: Xiao Zhang, XianTing Zeng
  • Patent number: 6940497
    Abstract: An electronic book, having a single screen, employs an electric field addressable, rewritable, colorant, preferably a bistable molecular colorant, for providing printed pages sequentially to a reader. The electronic book includes the rewritable screen coupled to an extraction-retraction device, an electrode array printer, a sheet position detector, and associated circuitry to download, store, sequence, and print images on the screen. Methods associated with document distribution are another aspect of the invention.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: September 6, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kent D. Vincent, R. Stanley Williams, Xiao-An Zhang
  • Patent number: 6937357
    Abstract: The present invention provides a printer and media solution that is conducive to briefcase-compatible compactness, battery operation, and media reuse. The printer consists of a low power, electrode array that images the surface of a paper-like, rewritable sheet. The sheet is responsive to pixel-sized electric fields produced by each electrode, resulting in a pixel array that is imaged in response to field polarity. The sheet is coated with a rewritable colorant that is a highly energy efficient, bistable, bi-modal molecular layer, requiring energy only to change an image, not to hold or illuminate it.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: August 30, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kent D. Vincent, R. Stanley Williams, Xiao-An Zhang
  • Patent number: 6934424
    Abstract: A molecular system is provided for nanometer-scale reversible electronic and optical switches, specifically, electric field-activated molecular switches that have an electric field induced band gap change that occurs via rotation of rotor units connected to immobile stator units. The molecular system has two branches on one side of an immobile junction unit and one or two branches on the opposite side to thereby provide “Y” and “X” configurations, respectively. The ends of the branches opposite the junction unit are connected to, or electrically associated with, other molecular systems or substrates, such as electrodes. The rotor units each rotate between two states as a function of an externally-applied field. Both multi-stable molecular mechanical devices and electric field-activated optical switches are provided.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: August 23, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiao-An Zhang, Zhang Lin Zhou, R. Stanley Williams, Kent D. Vincent
  • Publication number: 20050164250
    Abstract: The present invention is directed to compositions of matter useful for the diagnosis and treatment of tumor in mammals and to methods of using those compositions of matter for the same.
    Type: Application
    Filed: November 19, 2004
    Publication date: July 28, 2005
    Applicant: Genentech, Inc.
    Inventors: Avi Ashkenazi, Audrey Goddard, Austin Gurney, Paul Polakis, Victoria Smith, William Wood, Thomas Wu, Dong-Xiao Zhang
  • Patent number: 6920260
    Abstract: A molecular system is provided for electric field activated switches, such as a crossed-wire device or a pair of electrodes to which the molecular system is linked by linking moieties. The crossed-wire device comprises a pair of crossed wires that form a junction where one wire crosses another at an angle other than zero degrees and at least one connector species connecting the pair of crossed wires in the junction. The connector species comprises the molecular system, which has an electric field induced band gap change, and thus a change in its electrical conductivity, that occurs via one a molecular conformation change, based on a rotor/stator construction of the molecular system, involving a rotating portion (rotor) connected between to stationary portions (stators). Nanometer-scale reversible electronic switches are thus provided that can be assembled easily to make cross-bar circuits, which provide memory, logic, and communication functions.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: July 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xiao-An Zhang, R Stanley Williams, Robert G Walmsley, Kent Vincent
  • Publication number: 20050146085
    Abstract: Medical device balloons are formed from a tubular parison by a process or apparatus which establishes a controlled location (initiation zone) on the parison where radial expansion is initiated. Initiation within the initiation zone is achieved by heating the parison in that location to a higher temperature than the remainder of the parison for at least a portion of the blowing time. A variety of apparatus configurations are provided, some of which allow for the size and location of the initiation zone to be readily reconfigured. Balloons can also be modified, post-blowing, using heating apparatus and methods described.
    Type: Application
    Filed: January 7, 2004
    Publication date: July 7, 2005
    Applicant: Scimed Life Systems, Inc.
    Inventors: Thomas Holman, Nam Hoang, Jeffrey Lindquist, Richard Dunn, Scott Schewe, Kevin Silberg, David Parsons, Ken Xiao Zhang, Afsar Ali
  • Publication number: 20050127532
    Abstract: A semiconductor package includes a lead frame having a plurality of leads and a lead frame pad, the lead frame pad including a die coupled thereto, at least one of the plurality of leads having an external portion sloped upwards relative to a bottom surface of the package, metal connectors connecting the die to the plurality of leads, and a resin body encapsulating the die, metal connectors and at least a portion of the lead frame.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 16, 2005
    Inventors: Leeshawn Luo, Anup Bhalla, Sik Lui, Yueh-Se Ho, Mike Chang, Xiao Zhang