Patents by Inventor Zhizhang Chen

Zhizhang Chen 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: 20060086986
    Abstract: A storage device includes a first semiconducting layer having a p-dopant and a second semiconducting layer having an n-dopant, disposed on the first semiconducting layer forming a junction between the first and the second semiconducting layers. The storage device also includes a charge trapping structure disposed on the second semiconducting layer and a conductive gate, wherein the conductive gate and the charge trapping structure move relative to the other, wherein an electric field applied across the second semiconducting layer and the conductive gate traps charge in the charge trapping structure.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 27, 2006
    Inventors: Hang Liao, Zhizhang Chen, Alexander Govyadinov, Leslie Szepesi, Heon Lee
  • Publication number: 20060087232
    Abstract: A method of manufacturing a getter structure, including forming a support structure having a support perimeter, where the support structure is disposed over a substrate. In addition, the method includes forming a non-evaporable getter layer having an exposed surface area, where the non-evaporable getter layer is disposed over the support structure, and includes forming a vacuum gap between the substrate and the non-evaporable getter layer. The non-evaporable getter layer extends beyond the support perimeter of the support structure increasing the exposed surface area.
    Type: Application
    Filed: October 20, 2005
    Publication date: April 27, 2006
    Inventors: Sriram Ramamoorthi, Zhizhang Chen, John Liebeskind, Ronald Enck, Jennifer Shih
  • Publication number: 20060088980
    Abstract: A method of singulating electronic devices, including aligning a saw blade over a lid street disposed on a lid substrate that is disposed over a device substrate. An electronic device that includes a bond pad is disposed on the device substrate, wherein the lid street is disposed over the bond pad. In addition, the method also includes sawing partially through the lid street to form a trench in the lid street. The trench includes a trench bottom in the lid substrate.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 27, 2006
    Inventors: Chien-Hua Chen, Zhizhang Chen, Steven Geissler
  • Publication number: 20060076664
    Abstract: This invention relates to a semiconductor having protruding contacts comprising, a first semiconductor substrate having at least one interconnect located substantially within the first substrate, and a second semiconductor substrate having at least one protruding contact point that substantially contacts at least one interconnect.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 13, 2006
    Inventors: Chien-Hua Chen, Zhizhang Chen, Neal Meyer
  • Publication number: 20060056235
    Abstract: An electrical memory component is provided, comprising read/write probes and a chalcogenide storage media. Each read/write probe is adapted for selective electrical connection to a memory portion of the chalcogenide storage media and for performing read and write operations upon the memory portion. The chalcogenide storage media has a second plurality of memory portions, and is movably mounted relative to the first plurality of read/write probes for selective electrical connection of the read/write probes to a subset of the memory portions.
    Type: Application
    Filed: September 14, 2004
    Publication date: March 16, 2006
    Inventors: Zhizhang Chen, Lori Tully, Hang Liao, Robert Bicknell
  • Patent number: 7002820
    Abstract: A semiconductor storage device including a tip electrode, a media electrode and a storage media. The storage media has a storage area configurable to be in one of a plurality of structural states to represent information stored at the storage area, by passing a current through the storage area between the tip electrode and media electrode.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: February 21, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Mark David Johnson, Lung Tran
  • Publication number: 20060019497
    Abstract: This disclosure relates to systems and methods for reducing feature sizes. One of these methods enables formation of an original feature having a size in a length or width dimension of between about 100 and about 1000 nanometers with a system capable of patterning features to a minimum size of less than or about the size of the original feature and reduction of the size of the original feature below that of the minimum size of the system using an alignment-independent technique.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 26, 2006
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Hang Liao
  • Patent number: 6988924
    Abstract: A method of manufacturing a getter structure, including forming a support structure having a support perimeter, where the support structure is disposed over a substrate. In addition, the method includes forming a non-evaporable getter layer having an exposed surface area, where the non-evaporable getter layer is disposed over the support structure, and includes forming a vacuum gap between the substrate and the non-evaporable getter layer. The non-evaporable getter layer extends beyond the support perimeter of the support structure increasing the exposed surface area.
    Type: Grant
    Filed: April 14, 2003
    Date of Patent: January 24, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sriram Ramamoorthi, Zhizhang Chen, John Liebeskind, Ronald L. Enck, Jennifer Shih
  • Patent number: 6984862
    Abstract: A storage device includes a first semiconducting layer having a p-dopant and a second semiconducting layer having an n-dopant, disposed on the first semiconducting layer forming a junction between the first and the second semiconducting layers. The storage device also includes a charge trapping structure disposed on the second semiconducting layer and a conductive gate, wherein the conductive gate and the charge trapping structure move relative to the other, wherein an electric field applied across the second semiconducting layer and the conductive gate traps charge in the charge trapping structure.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: January 10, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Hang Liao, Zhizhang Chen, Alexander Govyadinov, Leslie Louis Szepesi, Jr., Heon Lee
  • Publication number: 20050281075
    Abstract: A semiconductor storage device including a tip electrode, a media electrode and a storage media. The storage media has a storage area configurable to be in one of a plurality of structural states to represent information stored at the storage area, by passing a current through the storage area between the tip electrode and media electrode.
    Type: Application
    Filed: June 17, 2004
    Publication date: December 22, 2005
    Inventors: Zhizhang Chen, Mark Johnson, Lung Tran
  • Patent number: 6933517
    Abstract: An emitter includes an electron supply and a tunneling layer disposed on the electron supply. A cathode layer is disposed on the tunneling layer. A conductive electrode has multiple layers of conductive material. The multiple layers include a protective layer disposed on the cathode layer. The conductive electrode has been etched to define an opening thereby exposing a portion of the cathode layer.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 23, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Paul J. Benning, Sriram Ramamoorthi, Thomas Novet
  • Patent number: 6911768
    Abstract: An emitter has an electron supply and a porous cathode layer having nanohole openings. The emitter also has a tunneling layer disposed between the electron supply and the cathode layer.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: June 28, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Hung Liao, Paul Benning, Alexander Govyadinov
  • Publication number: 20050122033
    Abstract: A light device includes an electron supply defining an emitter surface. A dielectric tunneling layer is disposed between the electron supply and a cathode layer. The cathode layer has at least partial photon transparency that is substantially uniform across the emitter surface.
    Type: Application
    Filed: January 12, 2005
    Publication date: June 9, 2005
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Terry McMahon, Timothy Myers
  • Patent number: 6902458
    Abstract: An emitter has an electron supply layer and a silicon-based dielectric layer formed on the electron supply layer. The silicon-based dielectric layer is preferably less than about 500 Angstroms. Optionally, an insulator layer is formed on the electron supply layer and has openings defined within which the silicon-based dielectric layer is formed. A cathode layer is formed on the silicon-based dielectric layer to provide a surface for energy emissions of electrons and/or photons. Preferably, the emitter is subjected to an annealing process thereby increasing the supply of electrons tunneled from the electron supply layer to the cathode layer.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: June 7, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Michael David Bic, Ronald L. Enck, Michael J. Regan, Thomas Novet, Paul J. Benning
  • Publication number: 20050110001
    Abstract: An emitter has an electron supply and a porous cathode layer having nanohole openings. The emitter also has a tunneling layer disposed between the electron supply and the cathode layer.
    Type: Application
    Filed: October 1, 2002
    Publication date: May 26, 2005
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Hung Liao, Paul Benning, Alexander Govyadinov
  • Publication number: 20050082598
    Abstract: A storage device includes a first semiconducting layer having a p-dopant and a second semiconducting layer having an n-dopant, disposed on the first semiconducting layer forming a junction between the first and the second semiconducting layers. The storage device also includes a charge trapping structure disposed on the second semiconducting layer and a conductive gate, wherein the conductive gate and the charge trapping structure move relative to the other, wherein an electric field applied across the second semiconducting layer and the conductive gate traps charge in the charge trapping structure.
    Type: Application
    Filed: October 20, 2003
    Publication date: April 21, 2005
    Inventors: Hang Liao, Zhizhang Chen, Alexander Govyadinov, Leslie Szepesi, Heon Lee
  • Patent number: 6882100
    Abstract: A light device includes an electron supply defining an emitter surface. A dielectric tunneling layer is disposed between the electron supply and a cathode layer. The cathode layer has at least partial photon transparency that is substantially uniform across the emitter surface.
    Type: Grant
    Filed: January 6, 2003
    Date of Patent: April 19, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Sriram Ramamoorthi, Terry E McMahon, Timothy F. Myers
  • Patent number: 6841794
    Abstract: A method for emitting electrons includes the steps of applying a voltage to an electron source to cause hot electrons to be generated with the source, and applying an electric field to cause at least a portion of the hot electrons to be emitted from the electron source.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: January 11, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Hung Liao, Alexander Govyadinov
  • Publication number: 20040251805
    Abstract: A method for creating an electron lens includes the steps of applying a polymer layer on an emitter surface of an electron emitter and then curing the polymer layer to reduce volatile content.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 16, 2004
    Inventors: Zhizhang Chen, Ronald L. Enck, Sriram Ramamoorthi, Qin Liu
  • Patent number: 6825969
    Abstract: A light modulator has one or more gratings and one or more MEMS actuators operable to move the gratings for selectively modulating light from an input light source. Certain embodiments have a plurality of blazed gratings arranged parallel to a plane and movable linearly parallel to the plane by MEMS actuators. Each of the gratings is individually blazed for light of a selected color such as red, green or blue. Associated with the gratings may be portions providing black and/or white outputs. An aperture spaced apart from the plane allows color(s) selected from an input white-light source to be directed to an output. An array of MEMS-actuated modulation devices provides a color spatial light modulator. Other embodiments have a grating adapted to be tilted by a MEMS actuator, either continuously through a range of angles or to a selected angle of a set of predetermined discrete angles, to direct selected wavelengths diffracted by the grating toward collection optics for a modulated light output.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: November 30, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhizhang Chen, Michael A. Pate, Hung Liao