Patents by Inventor Christopher Kunce

Christopher Kunce 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: 8120985
    Abstract: In one embodiment, a memory device comprises a semiconductor substrate, a first set of memory banks disposed on the semiconductor substrate and a second set of memory banks disposed on the semiconductor substrate. Each memory bank of the second set is split into a plurality of memory bank segments physically separated from each other and from the first set of memory banks. Each memory bank segment is arranged adjacent to, and occupies less area than, one of the memory banks of the first set.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: February 21, 2012
    Assignee: Qimonda AG
    Inventors: Christopher Kunce, Benjamin Heilmann, Alan Daniel
  • Patent number: 7755967
    Abstract: In one embodiment, a memory device comprises a plurality of banks and a refresh controller. Each bank is logically divisible into at least two different sections of memory cells during a refresh operation. The refresh controller successively identifies each of the sections using a first portion of a row address and addresses a row of memory cells included in each of the sections using a second portion of the row address. The refresh controller also successively selects two or more different groups of the banks during different time intervals each time a different one of the sections is identified. The refresh controller refreshes the addressed row of memory cells included in the most recently identified section of each bank for the most recently selected group of banks.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 13, 2010
    Assignee: Qimonda North America Corp.
    Inventors: Christopher Kunce, Ding-Cheung Yu
  • Publication number: 20100080075
    Abstract: In one embodiment, a memory device comprises a plurality of banks and a refresh controller. Each bank is logically divisible into at least two different sections of memory cells during a refresh operation. The refresh controller successively identifies each of the sections using a first portion of a row address and addresses a row of memory cells included in each of the sections using a second portion of the row address. The refresh controller also successively selects two or more different groups of the banks during different time intervals each time a different one of the sections is identified. The refresh controller refreshes the addressed row of memory cells included in the most recently identified section of each bank for the most recently selected group of banks.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: Qimonda North America Corp.
    Inventors: Christopher Kunce, Ding-Cheung Yu
  • Publication number: 20090231943
    Abstract: In one embodiment, a memory device comprises a semiconductor substrate, a first set of memory banks disposed on the semiconductor substrate and a second set of memory banks disposed on the semiconductor substrate. Each memory bank of the second set is split into a plurality of memory bank segments physically separated from each other and from the first set of memory banks. Each memory bank segment is arranged adjacent to, and occupies less area than, one of the memory banks of the first set.
    Type: Application
    Filed: March 12, 2008
    Publication date: September 17, 2009
    Applicant: QIMONDA NORTH AMERICA CORPORATION
    Inventors: Christopher Kunce, Benjamin Heilmann, Alan Daniel
  • Publication number: 20050013174
    Abstract: A system of multiplexed data lines in a DRAM integrated circuit includes a switching circuit having two switching states. In one switching state, the data lines connect to a first configuration of data paths as would occur in a typical DRAM integrated circuit. A limited number of spare column select lines are available to repair defective column select lines in the first configuration. In another switching state, the data lines connect to a second configuration of the data paths, doubling the number of spare column select lines available to repair a defective column select line.
    Type: Application
    Filed: July 18, 2003
    Publication date: January 20, 2005
    Inventors: Alan Daniel, Christopher Kunce