Patents by Inventor Todd Marquart

Todd Marquart 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: 7499330
    Abstract: A NAND architecture non-volatile memory device and programming process is described that programs the various cells of strings of non-volatile memory cells by the application of differing word line pass voltages (Vpass) to the unselected word lines of the memory cell string or array during an programming cycle. In one embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized depending on the placement of the memory cell in the NAND memory cell string. In another embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized to compensate for faster and slower programming word lines/memory cells.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: March 3, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Akira Goda, Seiichi Aritome, Todd Marquart
  • Publication number: 20090003078
    Abstract: Methods and devices are disclosed, such methods comprising applying a verify pass-through voltage to unselected select lines of the floating-gate memory array that is greater than a read pass-through voltage applied to the unselected select lines. Other methods involve utilizing a cell current for reading a value from one or more memory cells in program-verify operations that is lower than a cell current for reading value from one or more memory cells in read operations.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 1, 2009
    Inventors: Andrei Mihnea, Todd Marquart, Jeffrey Kessenich
  • Publication number: 20080291730
    Abstract: A selected word line that is coupled to cells for programming is biased with an initial programming voltage. The unselected word lines that are adjacent to the selected word line are biased at an initial Vpass. As the quantity of program/erase cycles on the memory device increases, the programming voltage required to successfully program the cells decreases incrementally. Vpass tracks the decrease of the programming voltage.
    Type: Application
    Filed: July 10, 2008
    Publication date: November 27, 2008
    Inventors: Seiichi Aritome, Todd Marquart
  • Patent number: 7408810
    Abstract: A selected word line that is coupled to cells for programming is biased with an initial programming voltage. The unselected wordlines that are adjacent to the selected word line are biased at an initial Vpass. As the quantity of program/erase cycles on the memory device increases, the programming voltage required to successfully program the cells decreases incrementally. Vpass tracks the decrease of the programming voltage.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: August 5, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Seiichi Aritome, Todd Marquart
  • Publication number: 20080008006
    Abstract: A NAND architecture non-volatile memory device and programming process is described that programs the various cells of strings of non-volatile memory cells by the application of differing word line pass voltages (Vpass) to the unselected word lines of the memory cell string or array during an programming cycle. In one embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized depending on the placement of the memory cell in the NAND memory cell string. In another embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized to compensate for faster and slower programming word lines/memory cells.
    Type: Application
    Filed: September 12, 2007
    Publication date: January 10, 2008
    Inventors: Akira Goda, Seiichi Aritome, Todd Marquart
  • Patent number: 7292476
    Abstract: A NAND architecture non-volatile memory device and programming process is described that programs the various cells of strings of non-volatile memory cells by the application of differing word line pass voltages (Vpass) to the unselected word lines of the memory cell string or array during an programming cycle. In one embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized depending on the placement of the memory cell in the NAND memory cell string. In another embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized to compensate for faster and slower programming word lines/memory cells.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: November 6, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Akira Goda, Seiichi Aritome, Todd Marquart
  • Publication number: 20070195603
    Abstract: A selected word line that is coupled to cells for programming is biased with an initial programming voltage. The unselected wordlines that are adjacent to the selected word line are biased at an initial Vpass. As the quantity of program/erase cycles on the memory device increases, the programming voltage required to successfully program the cells decreases incrementally. Vpass tracks the decrease of the programming voltage.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: Seiichi Aritome, Todd Marquart
  • Publication number: 20070047314
    Abstract: A NAND architecture non-volatile memory device and programming process is described that programs the various cells of strings of non-volatile memory cells by the application of differing word line pass voltages (Vpass) to the unselected word lines of the memory cell string or array during an programming cycle. In one embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized depending on the placement of the memory cell in the NAND memory cell string. In another embodiment of the present invention, the differing word line pass voltages (Vpass) are utilized to compensate for faster and slower programming word lines/memory cells.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventors: Akira Goda, Seiichi Aritome, Todd Marquart