Patents by Inventor Si-ty Lam

Si-ty Lam 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: 9997703
    Abstract: A resistive memory device includes a bottom electrode and a top electrode sandwiching a switching layer. The device also includes a field enhancement (FE) feature that extends from the bottom electrode either into the switching layer or is covered by switching layer and that is to enhance an electric field generated by the two electrodes to thereby confine a switching area of the device at the FE feature. The device further includes a planar interlayer dielectric surrounding the device, for supporting the top electrode. A method of making a resistive memory device, employing in-situ vacuum deposition of all layers, is also provided.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: June 12, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Si-Ty Lam, Xia Sheng, Richard H. Henze, Zhang-Lin Zhou
  • Patent number: 9522870
    Abstract: Asymmetrical 2,5-disubstituted-1,4-diaminobenzenes are provided, along with a process for forming both symmetrical and asymmetrical 2,5-disubstituted-1,4-diaminobenzenes.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: December 20, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin Zhou, Si-Ty Lam, Lihua Zhao
  • Publication number: 20160141494
    Abstract: A resistive memory device includes a bottom electrode and a top electrode sandwiching a switching layer. The device also includes a field enhancement (FE) feature that extends from the bottom electrode either into the switching layer or is covered by switching layer and that is to enhance an electric field generated by the two electrodes to thereby confine a switching area of the device at the FE feature. The device further includes a planar interlayer dielectric surrounding the device, for supporting the top electrode. A method of making a resistive memory device, employing in-situ vacuum deposition of all layers, is also provided.
    Type: Application
    Filed: July 25, 2013
    Publication date: May 19, 2016
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Si-Ty Lam, Xia Sheng, Richard H. Henze, Zhang-Lin Zhou
  • Publication number: 20130237725
    Abstract: Asymmetrical 2,5-disubstituted-1,4-diaminobenzenes are provided, along with a process for forming both symmetrical and asymmetrical 2,5-disubstituted-1,4-diaminobenzenes.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Inventors: Zhang-Lin Zhou, Si-Ty Lam, Lihua Zhao
  • Publication number: 20120247808
    Abstract: A transparent conductive material, including a substantially transparent carbon nanotube layer, and a metal layer deposited onto the carbon nanotube layer, in which the metal layer increases an electrical conductance of the transparent conductive material without substantially reducing an optical transmittance of the transparent conductive material.
    Type: Application
    Filed: June 22, 2009
    Publication date: October 4, 2012
    Inventor: Si-Ty Lam
  • Patent number: 7585687
    Abstract: A field emission device, which among other things may be used within an ultra-high density storage system, is disclosed. The emitter device includes an emitter electrode, an extractor electrode, and a solid-state field controlled emitter that utilizes a Schottky metal-semiconductor junction or barrier. The Schottky metal-semiconductor barrier is formed on the emitter electrode and electrically couples with the extractor electrode such that when an electric potential is placed between the emitter electrode and the extractor electrode, a field emission of electrons is generated from an exposed surface of the semiconductor layer. Further, the Schottky metal may be selected from typical conducting layers such as platinum, gold, silver, or a conductive semiconductor layer that is able to provide a high electron pool at the barrier.
    Type: Grant
    Filed: September 1, 2004
    Date of Patent: September 8, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Vu Thien Binh, Si-ty Lam, Huei Pei Kuo, Steven L. Naberhuis
  • Patent number: 7208867
    Abstract: An electron source includes a planar emission region for generating an electron emission, and a focusing structure for focusing the electron emission into an electron beam.
    Type: Grant
    Filed: July 14, 2004
    Date of Patent: April 24, 2007
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Huei-Pei Kuo, Henryk Birecki, Si-Ty Lam, Steven Louis Naberhuis
  • Publication number: 20060151777
    Abstract: An electron emitter that includes a metal film having a set of layers that are selected and arranged to adhere the metal film to a remainder of a structure of the electron emitter while avoiding electron loss in the metal film. A multiple layer metal film according to the present techniques enables a balance among adhesion properties, metal diffusion, and oxide properties that might otherwise hinder the performance of an electron emitter.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Inventors: Steven Naberhuis, Huei-Pei Kuo, Si-Ty Lam, Henryk Birecki, Xia Sheng
  • Patent number: 7057997
    Abstract: An ultra-high-density data storage device that includes at least one energy beam emitter and a data storage medium that itself includes an organic material. The organic material may include one or more Langmuir-Blodgett layers and may include a conductive polymer. Localized presence or absence of localized disorder in the Langmuir-Blodgett layers may be used to detect data bits formed in the data storage medium. The presence or absence of one-dimensional conductivity in the organic material may also be used to read data bits formed in the data storage medium.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: June 6, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Huei-Pei Kuo, Si-Ty Lam, Gary A. Gibson
  • Publication number: 20050269286
    Abstract: The present invention provides a method of fabricating a nano-wire from a substrate. The method includes the step of etching the substrate to form a wire that projects from a surface of the etched substrate. The wire has a predetermined thickness. The method also includes the step of exposing side surface portions of the wire to a reactive gas to react material of the side portions with the reactive gas and form a reaction product. The method further includes the step of removing the reaction product to thin the wire below the predetermined thickness.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 8, 2005
    Inventors: Manish Sharma, Si-Ty Lam
  • Patent number: 6960876
    Abstract: An electron emission device with nano-protrusions is described. Electrons are emitted from the nano-protrusions and directed by one or more conductors into beams. The beams may be shaped to be collimated, diverged, or converged. The shaped beams from one or more nano-protrusions may be focused onto a target spot through the use of additional electron optics.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: November 1, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huei-Pei Kuo, Si-Ty Lam, Sam Burriesci, Steven Louis Naberhuis, Henryk Birecki, Xia Sheng
  • Publication number: 20050156271
    Abstract: The present invention pertains to a data storage device. The data storage device includes a storage medium having an electrode and an electrolyte layer positioned on the electrode. The data storage device also includes at least one probe configured to contact the electrolyte layer. In addition, the storage medium includes a voltage supply device configured to supply voltage through the at least one probe and the electrode to thereby create a circuit between the at least one probe and the electrode. The level of voltage supplied through the at least one probe allows at least one of writing, reading, and erasing operations on the one or more memory cells of the storage medium.
    Type: Application
    Filed: January 16, 2004
    Publication date: July 21, 2005
    Inventors: Si-Ty Lam, Steve Naberhuis
  • Patent number: 6872964
    Abstract: The present disclosure relates to a data storage device, comprising a plurality of electron emitters adapted to emit electron beams, the electron emitters each having a planar emission surface, and a storage medium in proximity to the electron emitter, the storage medium having a plurality of storage areas that are capable of at least two distinct states that represent data, the state of the storage areas being changeable in response to bombardment by electron beams emitted by the electron emitters.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: March 29, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Steven L. Naberhuis, Huel-Pel Kuo, Si-Ty Lam, Henryk Birecki
  • Publication number: 20050051764
    Abstract: A method is presented for forming pores within a central area of a semi-conductive or conductive surface. The method includes forming a semi-conductive or conductive surface on a substrate. This semi-conductive or conductive surface is formed in a manner ensuring that upon application of an electric field at the semi-conductive or conductive surface an intensity of the electric field at a central area of the surface is at least as great as an intensity of the electric field at a perimeter of the surface. Finally, the method includes anodizing the semi-conductive or conductive surface by generating the electric field at the semi-conductive or conductive surface to form a porous region within the semi-conductive or conductive surface.
    Type: Application
    Filed: September 4, 2003
    Publication date: March 10, 2005
    Inventors: Huei-Pei Kuo, Xia Sheng, Henryk Birecki, Si-Ty Lam, Steven Naberhuis
  • Patent number: 6864624
    Abstract: A field emission device, which among other things may be used within an ultra-high density storage system, is disclosed. The emitter device includes an emitter electrode, an extractor electrode, and a solid-state field controlled emitter that utilizes a Schottky metal-semiconductor junction or barrier. The Schottky metal-semiconductor barrier is formed on the emitter electrode and electrically couples with the extractor electrode such that when an electric potential is placed between the emitter electrode and the extractor electrode, a field emission of electrons is generated from an exposed surface of the semiconductor layer. Further, the Schottky metal may be selected from typical conducting layers such as platinum, gold, silver, or a conductive semiconductor layer that is able to provide a high electron pool at the barrier.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: March 8, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Henryk Birecki, Vu Thien Binh, Si-ty Lam, Huei Pei Kuo, Steven L. Naberhuis
  • Publication number: 20050040383
    Abstract: The present disclosure relates to a data storage device, comprising a plurality of electron emitters adapted to emit electron beams, the electron emitters each having a planar emission surface, and a storage medium in proximity to the electron emitter, the storage medium having a plurality of storage areas that are capable of at least two distinct states that represent data, the state of the storage areas being changeable in response to bombardment by electron beams emitted by the electron emitters.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 24, 2005
    Inventors: Steven Naberhuis, Huel-Pel Kuo, Si-Ty Lam, Henry Birecki
  • Publication number: 20050029920
    Abstract: A field emission device, which among other things may be used within an ultra-high density storage system, is disclosed. The emitter device includes an emitter electrode, an extractor electrode, and a solid-state field controlled emitter that utilizes a Schottky metal-semiconductor junction or barrier. The Schottky metal-semiconductor barrier is formed on the emitter electrode and electrically couples with the extractor electrode such that when an electric potential is placed between the emitter electrode and the extractor electrode, a field emission of electrons is generated from an exposed surface of the semiconductor layer. Further, the Schottky metal may be selected from typical conducting layers such as platinum, gold, silver, or a conductive semiconductor layer that is able to provide a high electron pool at the barrier.
    Type: Application
    Filed: September 1, 2004
    Publication date: February 10, 2005
    Inventors: Henryk Birecki, Vu Binh, Si-ty Lam, Huei Kuo, Steven Naberhuis
  • Publication number: 20050001530
    Abstract: An electron source includes a planar emission region for generating an electron emission, and a focusing structure for focusing the electron emission into an electron beam.
    Type: Application
    Filed: July 14, 2004
    Publication date: January 6, 2005
    Inventors: Huei-Pei Kuo, Henryk Birecki, Si-Ty Lam, Steven Naberhuis
  • Patent number: 6822380
    Abstract: In an electron emitter based on Metal-Insulator-Semiconductor or Metal-Insulator-Metal emitters, field emission structures are enclosed within the emitter structure. The electron emitter may include a conductive substrate and an electron supply layer formed on the conductive substrate. The electron supply layer, for example undoped polysilicon, has protrusions formed on its surface. The sharpness and density of protrusions may be controlled. Above the electron supply layer and the protrusions, an insulator may be formed thereby enclosing the protrusions. A top conductive layer may be formed above the insulator. The enclosed protrusions are relatively insensitive to vacuum contamination. The thinness of the insulator allows high intensity electric fields at the protrusions to be generated with low applied voltage. Field-enhanced injection of electrons into the insulator and thence through the top conductive layer results. Furthermore, electron beam dispersion and divergence are minimized.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: November 23, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Xia Sheng, Henryk Birecki, Si-Ty Lam, Huei-Pei Kuo, Steven Louis Naberhuis
  • Patent number: 6815875
    Abstract: An electron source includes a planar emission region for generating an electron emission, and a focusing structure for focusing the electron emission into an electron beam.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: November 9, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huei-Pei Kuo, Henryk Birecki, Si-Ty Lam, Steven Louis Naberhuis