Patents by Inventor Michael C. Parris

Michael C. Parris 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: 9558808
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: January 31, 2017
    Assignee: Tessera, Inc.
    Inventor: Michael C. Parris
  • Publication number: 20160211009
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Application
    Filed: March 28, 2016
    Publication date: July 21, 2016
    Inventor: Michael C. PARRIS
  • Patent number: 9299417
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: March 29, 2016
    Assignee: Tessera, Inc.
    Inventor: Michael C. Parris
  • Patent number: 9158352
    Abstract: A microelectronic package includes a microelectronic element operable to output a discrete-value logic signal indicating an imminent increase in demand for current by at least some portion of the microelectronic element. An active power delivery element within the package is operable by the logic signal to increase current delivery to the microelectronic element.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 13, 2015
    Assignee: Tessera, Inc.
    Inventors: Richard Dewitt Crisp, Michael C. Parris, Mark Kroot
  • Publication number: 20150287452
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Application
    Filed: March 9, 2015
    Publication date: October 8, 2015
    Inventor: Michael C. Parris
  • Patent number: 8976572
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: March 10, 2015
    Assignee: Tessera, Inc.
    Inventor: Michael C. Parris
  • Publication number: 20140333371
    Abstract: A microelectronic package includes a microelectronic element operable to output a discrete-value logic signal indicating an imminent increase in demand for current by at least some portion of the microelectronic element. An active power delivery element within the package is operable by the logic signal to increase current delivery to the microelectronic element.
    Type: Application
    Filed: April 4, 2014
    Publication date: November 13, 2014
    Applicant: Tessera, Inc.
    Inventors: Richard Dewitt Crisp, Michael C. Parris, Mark Kroot
  • Publication number: 20140185402
    Abstract: A memory includes a DRAM array having memory cells, wordlines and bitlines coupled to the memory cells, and sense amplifiers. The memory can be configured to perform a method in which a wordline of the DRAM array is set to an active state. While the wordline is active, signals develop on the respective bitlines according to the flows of charge between the memory cells coupled to the wordline and the respective bitlines. The sense amplifiers connected to the respective bitlines can remain inactive such that the sense amplifiers do not amplify the signals to storable signal levels. Then, when the wordline is set again to the inactive state, insufficient charge remains in the memory cells coupled to the wordline such that the data stored in memory cells coupled to the wordline are erased. These steps can be repeated using each of a remaining number of wordlines of all or a selected range of the DRAM array so as to erase the data stored in all of the DRAM array or a selected range.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Applicant: TESSERA, INC.
    Inventor: Michael C. Parris
  • Patent number: 8699263
    Abstract: In a method of erasing data, a wordline of the DRAM array is set active, and signals develop on bitlines according to flows of charge between memory cells coupled to the wordline and the respective bitlines. Sense amplifiers connected to the respective bitlines can remain off such that the sense amplifiers do not amplify the signals to storable signal levels. Thereafter, when the wordline is set inactive again, insufficient charge remains in the memory cells coupled to the wordline to represent data such that the data stored in memory cells coupled to the wordline are erased. These steps can be performed using each of the wordlines of a selected range of the DRAM array or all of the DRAM array so as to erase the data stored in the selected range or in all of the DRAM array.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: April 15, 2014
    Assignee: Tessera, Inc.
    Inventor: Michael C. Parris
  • Patent number: 8692611
    Abstract: A microelectronic package includes a microelectronic element operable to output a discrete-value logic signal indicating an imminent increase in demand for current by at least some portion of the microelectronic element. An active power delivery element within the package is operable by the logic signal to increase current delivery to the microelectronic element.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: April 8, 2014
    Assignee: Tessera, Inc.
    Inventors: Richard Dewitt Crisp, Michael C. Parris, Mark Kroot
  • Publication number: 20130051127
    Abstract: In a method of erasing data, a wordline of the DRAM array is set active, and signals develop on bitlines according to flows of charge between memory cells coupled to the wordline and the respective bitlines. Sense amplifiers connected to the respective bitlines can remain off such that the sense amplifiers do not amplify the signals to storable signal levels. Thereafter, when the wordline is set inactive again, insufficient charge remains in the memory cells coupled to the wordline to represent data such that the data stored in memory cells coupled to the wordline are erased. These steps can be performed using each of the wordlines of a selected range of the DRAM array or all of the DRAM array so as to erase the data stored in the selected range or in all of the DRAM array.
    Type: Application
    Filed: November 8, 2011
    Publication date: February 28, 2013
    Applicant: TESSERA, INC.
    Inventor: Michael C. Parris
  • Publication number: 20130043935
    Abstract: A microelectronic package includes a microelectronic element operable to output a discrete-value logic signal indicating an imminent increase in demand for current by at least some portion of the microelectronic element. An active power delivery element within the package is operable by the logic signal to increase current delivery to the microelectronic element.
    Type: Application
    Filed: November 2, 2011
    Publication date: February 21, 2013
    Applicant: TESSERA, INC.
    Inventors: Richard Dewitt Crisp, Michael C. Parris, Mark Kroot
  • Patent number: 8339882
    Abstract: A dual bit line precharge architecture and method for low power DRAM which provides the low operating voltage of a non-half supply voltage (VCC/2) precharge with the low memory array current consumption and low memory array noise spike of VCC/2 precharge techniques. The architecture and technique of the present invention provides both reference voltage (VSS) precharged sub arrays and VCC precharged sub arrays on the same DRAM memory either with or without the novel charge sharing or charge recycling circuitry between these two different sub arrays as disclosed herein.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: December 25, 2012
    Assignee: ProMOS Technologies Pte. Ltd.
    Inventors: Michael C. Parris, Kim C. Hardee
  • Patent number: 8281219
    Abstract: An ECC circuit and method for an integrated circuit memory allows a user to enter a test mode and select a specific location to force a known failure on any memory chip, whether it is fully functional or partially functional. Additional circuitry is placed in the data path where existing buffers and drivers are already located, minimizing any additional speed loss or area penalty required to implement the forced data failure. In a first general method, a logic zero is forced onto a selected data line at a given time. In a second general method, a logic one is forced onto a selected data line at a given time.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: October 2, 2012
    Assignee: Invensas Corporation
    Inventors: Michael C. Parris, Oscar Frederick Jones, Jr.
  • Publication number: 20120008444
    Abstract: A dual bit line precharge architecture and method for low power DRAM which provides the low operating voltage of a non-half supply voltage (VCC/2) precharge with the low memory array current consumption and low memory array noise spike of VCC/2 precharge techniques. The architecture and technique of the present invention provides both reference voltage (VSS) precharged sub arrays and VCC precharged sub arrays on the same DRAM memory either with or without the novel charge sharing or charge recycling circuitry between these two different sub arrays as disclosed herein.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Applicant: ProMOS Technologies PTE.LTD.
    Inventors: Michael C. Parris, Kim C. Hardee
  • Publication number: 20120008445
    Abstract: A dual bit line precharge architecture and method for low power DRAM which provides the low operating voltage of a non-half supply voltage (VCC/2) precharge with the low memory array current consumption and low memory array noise spike of VCC/2 precharge techniques. The architecture and technique of the present invention provides both reference voltage (VSS) precharged sub arrays and VCC precharged sub arrays on the same DRAM memory either with or without the novel charge sharing or charge recycling circuitry between these two different sub arrays as disclosed herein.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Applicant: ProMOS Technologies PTE.LTD.
    Inventors: Michael C. Parris, Kim C. Hardee
  • Patent number: 7916567
    Abstract: A twin cell architecture for dynamic random access memory (DRAM) devices and those devices incorporating embedded DRAM utilizing an open bitline configuration is disclosed. The twin cell architecture disclosed has significant advantages over conventional designs in terms of power, radiation hardness and speed and does not require intermediate supply voltage bitline precharge while allowing for 6F2 memory cell layouts.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: March 29, 2011
    Assignee: ProMOS Technologies Pte. Ltd
    Inventors: Michael C. Parris, Douglas B. Butler
  • Patent number: 7649406
    Abstract: A short-circuit charge-sharing technique which allows charge-sharing between two or more circuits with a simple shorting transistor controlled to achieve the desired operating voltage levels. The shorting transistor which can be either a P-channel Metal Oxide Semiconductor (PMOS) or an N-channel Metal Oxide Semiconductor (NMOS) device and can be controlled utilizing the same clock that enables the drive of the signals between which charge-sharing occurs. In operation, the desired operating voltage levels can be regulated by increasing and decreasing the pulse width of the control circuit output to the gate of the shorting transistor.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: January 19, 2010
    Assignees: United Memories, Inc., Sony Corporation
    Inventors: Michael C. Parris, Kim C. Hardee
  • Patent number: 7631233
    Abstract: A data inversion register technique for integrated circuit memory testing in which data input signals are selectively inverted in a predetermined pattern to maximize the probability of identifying failures during testing. In accordance with the technique of the present invention, on predetermined input/outputs (I/Os,) data inputs may be inverted to create a desired test pattern (such as data stripes) which are “worst case” for I/O circuitry or column stripes which are “worst case” for memory arrays. A circuit in accordance with the technique of the present invention then matches the pattern for the data out path, inverting the appropriate data outputs to obtain the expected tester data. In this way, the test mode is transparent to any memory tester.
    Type: Grant
    Filed: October 7, 2007
    Date of Patent: December 8, 2009
    Assignees: United Memories, Inc., Sony Corporation
    Inventors: Michael C. Parris, Oscar Frederick Jones, Jr.
  • Patent number: RE44726
    Abstract: A data inversion register technique for integrated circuit memory testing in which data input signals are selectively inverted in a predetermined pattern to maximize the probability of identifying failures during testing. In accordance with the technique of the present invention, on predetermined input/outputs (I/Os,) data inputs may be inverted to create a desired test pattern (such as data stripes) which are “worst case” for I/O circuitry or column stripes which are “worst case” for memory arrays. A circuit in accordance with the technique of the present invention then matches the pattern for the data out path, inverting the appropriate data outputs to obtain the expected tester data. In this way, the test mode is transparent to any memory tester.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: January 21, 2014
    Assignee: Invensas Corporation
    Inventors: Michael C. Parris, Oscar Frederick Jones, Jr.