Patents by Inventor Kevin Zhang

Kevin 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: 20110149666
    Abstract: Techniques are disclosed that allow for power conservation in integrated circuit memories, such as SRAM. The techniques can be embodied in circuitry that allows for floating of bitlines to eliminate or otherwise reduce power leakage associated with precharging bitlines. For instance, the techniques can be embodied in a bitline floating circuit having a single logic gate for qualifying the precharge control signal with a wake signal, so that precharging of the bitline does not occur if the wake signal is not in an active state. The techniques further allow for the elimination or reduction of unnecessary power consumption by the I/O circuitry or the memory array, such as when the memory array is not being accessed or when the array or a portion thereof is permanently disabled for yield recovery.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Inventors: Tsung-Yung Chang, Fatih Hamzaoglu, Gunjan H. Pandya, Siufu Chiu, Kevin Zhang
  • Patent number: 7933521
    Abstract: An apparatus for use in an optical transceiver module that incorporates an integrated multiplexer/demultiplexer for high speed data transfer applications. One example embodiment includes a transmissive block arranged to interface with a transmit optical port, a receive optical port, and a plurality of optical subassemblies. The transmit optical port may transmit a first multiplexed optical signal and the receive optical port may receive a second multiplexed optical signal. Filters may be positioned between the transmissive block and one or more of the optical subassemblies to transmit signals at predetermined wavelengths while reflecting other signals incident thereon.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: April 26, 2011
    Assignee: Finisar Corporation
    Inventors: Zhenli Wen, Kevin Zhang, Dongsheng Han, Fahua Lan
  • Patent number: 7924596
    Abstract: A programmable ROM (PROM) architecture includes cascode NMOS transistors with a fuse bit cell that is arrayed, with sleep transistors located in each column of the array that in a standby mode shut down the entire fuse array. A fuse redundancy scheme may be used to repair a defective fuse row.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 12, 2011
    Assignee: Intel Corporation
    Inventors: Zhanping Chen, Kevin Zhang
  • Publication number: 20100165699
    Abstract: Techniques and circuitry are disclosed for efficiently implementing programmable memory array circuit architectures, such as PROM, OTPROM, and other such programmable non-volatile memories. The circuitry employs an antifuse scheme that includes an array of memory bitcells, each containing a program device and an antifuse element configured with current path isolation well and for storing the memory cell state. The bitcell configuration, which can be used in conjunction with column/row select circuitry, power selector circuitry, and/or readout circuitry, allows for high-density memory array circuit designs and layouts.
    Type: Application
    Filed: December 16, 2009
    Publication date: July 1, 2010
    Inventors: Zhanping Chen, Sarvesh H. Kulkarni, Kevin Zhang
  • Publication number: 20100155887
    Abstract: A process of forming a semiconductive capacitor device for a memory circuit includes forming a first capacitor cell recess and a second capacitor cell recess that are spaced apart by a capacitor cell boundary of a first height. The process includes lowering the first height of the capacitor cell boundary to a second height. A common plate capacitor bridges between the first recess and the second recess over the boundary above the second height and below the first height.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Inventors: Nick Lindert, Brian Doyle, Dinesh Somasekhar, Christopher J. Jezewski, Swaminathan Sivakumar, Kevin Zhang, Stephen Wu
  • Publication number: 20100046269
    Abstract: An array of memory cells is disclosed. The memory cell includes a fuse and at least one transistor. The transistor is used to control the programming or sensing of the fuse. A program voltage is applied to a stack of first and second conductive layers. A first portion of the stack couples the program voltage to a terminal of the transistor in a cell. A second portion of the stack couples the program voltage to a terminal of the transistor in another cell.
    Type: Application
    Filed: August 20, 2008
    Publication date: February 25, 2010
    Inventors: Zhanping Chen, Sarvesh Kulkarni, Kevin Zhang
  • Patent number: 7660498
    Abstract: A glass optical reflective tap is described that optically connects two optical fibers and may tap a portion of the light that is being communicated between the optical fibers. In one embodiment of the invention, the optical filter includes two D-lenses that operate as focusing or collimator lenses. The first D-lens focuses an optical signal onto a tap filter that allows a majority of the light within an optical signal to pass and also reflects a small portion of optical signal light to a reflective port. The second D-lens focuses the passed light into a transmission port of an optical fiber.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: February 9, 2010
    Assignee: Finisar Corporation
    Inventors: Kevin Zhang, Guojun Lai, Youjian Wu, Fahua Lan
  • Patent number: 7657767
    Abstract: In one embodiment of the present invention, a technique is provided to control leakage of a cache sub-array. Other embodiments are disclosed herein. A sleep and shut-off circuit is connected between a virtual supply terminal and a first physical supply terminal to reduce leakage from the cache sub-array when the cache sub-array is disabled in a shut-off mode. The cache sub-array is connected between the virtual supply terminal and a second physical supply terminal. An active circuit is connected to the sleep and shut-off circuit in parallel to enable the cache sub-array in a normal mode and to disable the cache sub-array in the shut-off mode.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 2, 2010
    Assignee: Intel Corporation
    Inventors: Stefan Rusu, Tsung-Yung Chang, Kevin Zhang, Fatih Hamzaoglu, Jonathan Shoemaker, Ming Huang
  • Publication number: 20090257714
    Abstract: A glass optical reflective tap is described that optically connects two optical fibers and may tap a portion of the light that is being communicated between the optical fibers. In one embodiment of the invention, the optical filter includes two D-lenses that operate as focusing or collimator lenses. The first D-lens focuses an optical signal onto a tap filter that allows a majority of the light within an optical signal to pass and also reflects a small portion of optical signal light to a reflective port. The second D-lens focuses the passed light into a transmission port of an optical fiber.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Inventors: Kevin Zhang, Guojun Lai, Youjian Wu, Fahua Lan
  • Patent number: 7602663
    Abstract: A plurality of fuse cells are arranged in an array. One or more fuse cells include a pair of fuse devices to output a pair of voltages, respectively, wherein the pair of fuse devices are redundantly programmed. A sense amplifier is coupled to the plurality of fuse cells to read the pair of voltage outputs from each of the plurality of fuse cells, respectively. A comparator circuit is coupled to the sense amplifier to compare the pair of voltage outputs for each of the plurality of fuse cells and to output the compared result.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: October 13, 2009
    Assignee: Intel Corporation
    Inventors: Zhanping Chen, Jonathan P. Douglas, Praveen Mosalikanti, Kevin Zhang, Gregory F. Taylor
  • Patent number: 7561766
    Abstract: A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second group of wavelengths to pass through the thin film(s). The thin film(s) exhibit a flat top frequency response across the channel bandwidths of the multiplexed signal for which the thin film filter is designed such that the thin film interleaver is less sensitive to wavelength drift and temperature variations.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: July 14, 2009
    Assignee: Finisar Corporation
    Inventors: Johhny Zhong, Yin Zhang, Steve Wang, Ping Xie, Kevin Zhang
  • Publication number: 20090080232
    Abstract: A programmable ROM (PROM) architecture includes cascode NMOS transistors with a fuse bit cell that is arrayed, with sleep transistors located in each column of the array that in a standby mode shut down the entire fuse array. A fuse redundancy scheme may be used to repair a defective fuse row.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventors: Zhanping Chen, Kevin Zhang
  • Publication number: 20080292317
    Abstract: An apparatus for use in an optical transceiver module that incorporates an integrated multiplexer/demultiplexer for high speed data transfer applications. One example embodiment includes a transmissive block arranged to interface with a transmit optical port, a receive optical port, and a plurality of optical subassemblies. The transmit optical port may transmit a first multiplexed optical signal and the receive optical port may receive a second multiplexed optical signal. Filters may be positioned between the transmissive block and one or more of the optical subassemblies to transmit signals at predetermined wavelengths while reflecting other signals incident thereon.
    Type: Application
    Filed: November 21, 2007
    Publication date: November 27, 2008
    Applicant: Finisar Corporation
    Inventors: Zhenli Wen, Kevin Zhang, Dongsheng Han, Fahua Lan
  • Patent number: 7417913
    Abstract: An apparatus, a method, and a system for fuse cells are disclosed herein. In various embodiments, a fuse cell may include circuitry to adjust a sensing margin. A fuse cell may include first and second fuse cells, and first and second resistance devices. The first resistance device may be configured to adjust a first voltage output from the first fuse cell, and the second resistance device may be configured to adjust a second voltage output from the second fuse cell. The first and second resistance devices may be configured adjust the first and second voltages asymmetrically.
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: August 26, 2008
    Assignee: Intel Corporation
    Inventors: Zhanping Chen, Kevin Zhang
  • Patent number: 7403426
    Abstract: In some embodiments, a memory array is provided with cells that when written to or read from, can have modified supplies to enhance their read stability and/or write margin performance. Other embodiments may be disclosed and/or claimed.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: July 22, 2008
    Assignee: Intel Corporation
    Inventors: Fatih Hamzaoglu, Kevin Zhang, Nam Sung Kim, Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Vivek K. De, Bo Zheng
  • Publication number: 20080151593
    Abstract: An apparatus, a method, and a system for a fuse cell array are disclosed herein. A plurality of fuse cells are arranged in an array. One or more fuse cells include a pair of fuse devices to output a pair of voltages, respectively, wherein the pair of fuse devices are redundantly programmed. A sense amplifier is coupled to the plurality of fuse cells to read the pair of voltage outputs from each of the plurality of fuse cells, respectively. A comparator circuit is coupled to the sense amplifier to compare the pair of voltage outputs for each of the plurality of fuse cells and to output the compared result.
    Type: Application
    Filed: December 22, 2006
    Publication date: June 26, 2008
    Inventors: Zhanping Chen, Jonathan P. Douglas, Praveen Mosalikanti, Kevin Zhang, Gregory F. Taylor
  • Patent number: 7354203
    Abstract: A package for maintaining alignment of components includes a frame and a beam with the beam attached to the frame and one end of the beam. One or more components are mounted to the beam. The frame and a portion of the beam are separated from each other by a channel which allows portions of the beam to flex substantially independently of the frame when a force is applied to the frame. Thus, the effects resulting from forces applied to the frame are not experienced by the beam, or are at least attenuated, so that the alignment of the components mounted on the beam is substantially preserved.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: April 8, 2008
    Assignee: Finisar Corporation
    Inventors: Stefan Pfnuer, Tengda Du, Kevin Zhang, Julie S. Eng, Axel Mehnert
  • Patent number: 7317851
    Abstract: An optical add/drop patch cord. The optical add/drop patch cord has an optical add/drop component enclosed by a casing. An input fiber is optically coupled to the optical add/drop component and permanently or detachably connected to the casing. A drop fiber is optically coupled to the optical add/drop component and permanently or detachably connected to the casing. An add fiber is optically coupled to the optical add/drop component and permanently connected to the casing. An output fiber is optically coupled to the optical add/drop component and permanently connected to the casing.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: January 8, 2008
    Assignee: Finisar Corporation
    Inventors: Johnny Zhong, Steve Wang, Ping Xie, Kevin Zhang
  • Publication number: 20070223860
    Abstract: A thin film interleaver device is disclosed. The thin film interleaver includes thin film optics. The thin film(s) are formed such that they reflect one group of wavelengths while allowing a second group of wavelengths to pass through the thin film(s). The thin film(s) exhibit a flat top frequency response across the channel bandwidths of the multiplexed signal for which the thin film filter is designed such that the thin film interleaver is less sensitive to wavelength drift and temperature variations.
    Type: Application
    Filed: May 24, 2007
    Publication date: September 27, 2007
    Applicant: Finisar Corporation
    Inventors: Johnny Zhong, Yin Zhang, Steve Wang, Ping Xie, Kevin Zhang
  • Publication number: 20070217251
    Abstract: An apparatus, a method, and a system for fuse cells are disclosed herein. In various embodiments, a fuse cell may include circuitry to adjust a sensing margin.
    Type: Application
    Filed: March 15, 2006
    Publication date: September 20, 2007
    Inventors: Zhanping Chen, Kevin Zhang