Patents by Inventor Muhammad M. Khellah

Muhammad M. Khellah 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: 20100073994
    Abstract: A Dynamic Random Access Memory (DRAM) cell comprising a leakage compensation circuit. The leakage compensation circuit allows a compensation current from a source to flow to the memory cell storage node of the DRAM cell to compensate the leakage current from the memory cell storage node of the DRAM cell to improve retention time.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 25, 2010
    Inventors: DiaaEldin S. Khalil, Arijit Rayehowdhury, Muhammad M. Khellah, Ali Keshavarzi
  • Patent number: 7684520
    Abstract: A method and apparatus for bus repeater tapering. The sizing of repeaters on a portion of one transmission line is chosen to propagate a signal transition at a particular rate. The sizing of repeaters on a substantially parallel portion of another transmission line, is chosen to propagate a second signal transition at a different rate. Thus, the worst-case capacitance coupling factor between the two transmission lines may be reduced.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: March 23, 2010
    Assignee: Intel Corporation
    Inventors: James W. Tschanz, Muhammad M. Khellah, Yibin Ye, Vivek K. De
  • Patent number: 7558097
    Abstract: For one disclosed embodiment, an integrated circuit may comprise a memory array on the integrated circuit and access control circuitry on the integrated circuit. The memory array may have a bit line with one or more resistors along the bit line and may have a plurality of memory cells coupled to the bit line at a plurality of locations along the bit line. At least one resistor along the bit line may be between two locations at which memory cells are coupled to the bit line. The access control circuitry may be to select a memory cell coupled to the bit line and to sense a signal on the bit line from the selected memory cell. Other embodiments are also disclosed.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: July 7, 2009
    Assignee: Intel Corporation
    Inventors: Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Nam Sung Kim, Vivek De
  • Publication number: 20090172283
    Abstract: Methods and apparatus to reduce minimum operating voltage through a hybrid cache design are described. In one embodiment, a cache with different size bit cells may be used, e.g., to reduce minimum operating voltage of an integrated circuit device that includes the cache and possibly other logic (such as a processor). Other embodiments are also described.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Inventors: Muhammad M. Khellah, Christopher Wilkerson, Alaa R. Alameldeen, Bibiche M. Geuskens, Tanay Karnik, Vivek De, Gunjan H. Pandya
  • Patent number: 7532528
    Abstract: A memory system having a selectable configuration for sense amplifiers is included. The memory system can include bit cells and a switch module coupled to the bit cell and to a first portion of a sense amplifier. The switch module can connect, disconnect or cross couple the bit cell to the sense amplifier based on a test for the input offset voltage of first portion of the sense amplifier. A similar configuration can be implemented by a second portion of the sense amplifier. The system can also include a programmer module to configure a setting of the switch module and can include a column select module to couple the bit cells to the sense amplifiers based on what column of bit cell is to be read. Other embodiments are also disclosed.
    Type: Grant
    Filed: June 30, 2007
    Date of Patent: May 12, 2009
    Assignee: Intel Corporation
    Inventors: Dinesh Somasekhar, Muhammad M Khellah, Yibin Ye, Nam Sung Kim, Vivek K De
  • Patent number: 7514746
    Abstract: A floating-body dynamic random access memory device may include a semiconductor body having a top surface and laterally opposite sidewalls formed on a substrate. A gate dielectric layer may be formed on the top surface of the semiconductor body and on the laterally opposite sidewalls of the semiconductor body. A gate electrode may be formed on the gate dielectric on the top surface of the semiconductor body and adjacent to the gate dielectric on the laterally opposite sidewalls of the semiconductor body. The gate electrode may only partially deplete a region of the semiconductor body, and the partially depleted region may be used as a storage node for logic states.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: April 7, 2009
    Assignee: Intel Corporation
    Inventors: Stephen H. Tang, Ali Keshavarzi, Dinesh Somasekhar, Fabrice Paillet, Muhammad M. Khellah, Yibin Ye, Shih-Lien L. Lu, Brian Doyle, Suman Datta, Vivek K. De
  • Publication number: 20090083495
    Abstract: Provided herein are circuits incorporating a dynamic technique to minimize power overhead with writeback. In some embodiments, error-correction-code (ECC) is used to dynamically detect bit failures and use that information to identify memory sub-sections to be enabled for writeback.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventors: Muhammad M. Khellah, Dinesh Somasekhar, Vivek K. De
  • Patent number: 7501316
    Abstract: Some embodiments provide a memory cell that includes a body region, a source region and a drain region. The body region is doped with charge carriers of a first type, the source region is disposed in the body region and doped with charge carriers of a second type, and the drain region is disposed in the body region and doped with charge carriers of the second type. The body region and the source region form a first junction, the body region and the drain region form a second junction, and a conductivity of the first junction from the body region to the source region in a case that the first junction is unbiased is substantially less than a conductivity of the second junction from the body region to the drain region in a case that the second junction is unbiased.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: March 10, 2009
    Assignee: Intel Corporation
    Inventors: Ali Keshavarzi, Stephen H. Tang, Dinesh Somasekhar, Fabrice Paillet, Muhammad M. Khellah, Yibin Ye, Shih-Lien L. Lu, Vivek K. De
  • Publication number: 20090003108
    Abstract: In one embodiment, a memory system having a selectable configuration for sense amplifiers is disclosed. The memory system can include bit cells and a switch module coupled to the bit cell and to a first portion of a sense amplifier. The switch module can connect, disconnect or cross couple the bit cell to the sense amplifier based on a test for the input offset voltage of first portion of the sense amplifier. A similar configuration can be implemented by a second portion of the sense amplifier. The system can also include a programmer module to configure a setting of the switch module and can include a column select module to couple the bit cells to the sense amplifiers based on what column of bit cell is to be read. Other embodiments are also disclosed.
    Type: Application
    Filed: June 30, 2007
    Publication date: January 1, 2009
    Inventors: Dinesh Somasekhar, Muhammad M. Khellah, Yibin Ye, Nam Sung Kim, Vivek K. De
  • Patent number: 7423899
    Abstract: A SRAM device is provided having a plurality of memory cells. Each memory cell may include a plurality of transistors coupled in a cross-coupled inverter configuration. An NMOS transistor may be coupled to a body of the two PMOS transistors in the cross-coupled inverter configuration so as to apply a forward body bias to the PMOS transistors of the cross-coupled inverter configuration. A power control unit may control a supply voltage to each of the PMOS transistors as well as apply the switching signal to the NMOS transistor based on a STANDBY mode of the memory cell.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 9, 2008
    Assignee: Intel Corporation
    Inventors: Stephen H. Tang, Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Vivek K. De, James W. Tschanz
  • 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
  • Patent number: 7397395
    Abstract: In general, in one aspect, the disclosure describes an apparatus inluding a representative majority voter gate to analyze bit transitions of a pluraility of bits. The plurailuty of bits are analzed in groups. The representative majority voter gate generates an invert signal based on the analysis. The apparatus further inludes a conditional inverter to apply the invert signal to the pluraility of bits.
    Type: Grant
    Filed: February 16, 2005
    Date of Patent: July 8, 2008
    Assignee: Intel Corporation
    Inventors: James W Tschanz, Mircea R. Stan, Muhammad M Khellah, Yibin Ye, Vivek K De
  • Publication number: 20080162869
    Abstract: For one disclosed embodiment, an apparatus may comprise cache memory circuitry including multiple portions of destructive read memory cells and access control circuitry to access portions of destructive read memory cells. The apparatus may also comprise address hash logic to receive an address and to generate a hashed address based at least in part on at least a portion of the received address using a hashing technique to help distribute accesses by the access control circuitry across different portions of destructive read memory cells. Other embodiments are also disclosed.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Inventors: Nam Sung Kim, Muhammad M. Khellah, Vivek De
  • Publication number: 20080158932
    Abstract: For one disclosed embodiment, an integrated circuit may comprise a memory array on the integrated circuit and access control circuitry on the integrated circuit. The memory array may have a bit line with one or more resistors along the bit line and may have a plurality of memory cells coupled to the bit line at a plurality of locations along the bit line. At least one resistor along the bit line may be between two locations at which memory cells are coupled to the bit line. The access control circuitry may be to select a memory cell coupled to the bit line and to sense a signal on the bit line from the selected memory cell. Other embodiments are also disclosed.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventors: Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Nam Sung Kim, Vivek De
  • Patent number: 7391640
    Abstract: A dynamic random access memory includes a cell having a circuit between a floating-body transistor and a bit line. Activation of the circuit is controlled to provide isolation between the floating body and bit-line voltage both during write operations and during times when the cell is unselected. The added isolation improves performance, for example, by reducing the need for gate-to-body coupling and the magnitude of voltage swings between the bit lines.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: June 24, 2008
    Assignee: Intel Corporation
    Inventors: Stephen H. Tang, Ali Keshavarzi, Dinesh Somasekhar, Fabrice Paillet, Muhammad M. Khellah, Yibin Ye, Shih-Lien L. Lu, Vivek K. De
  • Patent number: 7385865
    Abstract: In one embodiment, a memory array is provided comprising one or more columns each comprising a plurality of bit cells divided into groups of bit cells with each group of bit cells controllably coupled to a separate bit line.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: June 10, 2008
    Assignee: Intel Corporation
    Inventors: Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Gunjan H. Pandya, Vivek K. De
  • Patent number: 7355246
    Abstract: Some embodiments provide a memory cell comprising a body region doped with charge carriers of a first type, a source region disposed in the body region and doped with charge carriers of a second type, and a drain region disposed in the body region and doped with charge carriers of the second type. According to some embodiments, the body region, the source region, and the drain region are oriented in a first direction, the body region and the source region form a first junction, and the body region and the drain region form a second junction. Moreover, a conductivity of the first junction from the body region to the source region in a case that the first junction is unbiased is substantially less than a conductivity of the second junction from the body region to the drain region in a case that the second junction is unbiased. Some embodiments further include a transistor oriented in a second direction, wherein the second direction is not parallel to the first direction.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: April 8, 2008
    Assignee: Intel Corporation
    Inventors: Ali Keshavarzi, Stephen H. Tang, Dinesh Somasekhar, Fabrice Paillet, Muhammad M. Khellah, Yibin Ye, Shih-Lien L. Lu, Vivek K. De
  • Publication number: 20080080266
    Abstract: A memory line driver system may include a first input line to receive a clock-gated signal associated with a first supply power level, a second input line to receive an information signal associated with a second supply power level, and an output to drive a memory cell line according to the first supply power level based on the clock-gated signal and the information signal.
    Type: Application
    Filed: September 27, 2006
    Publication date: April 3, 2008
    Inventors: Muhammad M. Khellah, Dinesh Somasekhar, Yibin Ye, Nam Sung Kim, Vivek K. De
  • Patent number: 7342845
    Abstract: An apparatus and method are provided for limiting a drop of a supply voltage in an SRAM device to retain the state of the memory during an IDLE state. The apparatus may include a memory array, a sleep device, and a clamping circuit. The clamping circuit may be configured to activate the sleep device when a voltage drop across the memory array falls below a preset voltage and the memory array is in an IDLE state.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: March 11, 2008
    Assignee: Intel Corporation
    Inventors: Dinesh Somasekhar, Muhammad M. Khellah, Yibin Ye, Vivek K. De, James W. Tschanz, Stephen H. Tang
  • Patent number: 7326972
    Abstract: A device includes an interconnect structure having a number of circuit paths to transfer signals. The circuit paths transfer the signals at different speed to reduce the coupling capacitance effect between adjacent circuit paths.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: February 5, 2008
    Assignee: Intel Corporation
    Inventors: Maged M. Ghoneima, Muhammad M. Khellah, James W. Tschanz, Yibin Ye, Vivek K. De