Patents by Inventor Thai Le

Thai Le 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: 20260120779
    Abstract: A programming method for a semiconductor device that includes programming a first memory cell to a first program state that is associated with a first program verify voltage and a first reference voltage such that the first memory cell has a first threshold voltage that meets or exceeds the first program verify voltage. The first program verify voltage is greater than the first reference voltage. A first read operation is performed which determines the first threshold voltage of the first memory cell has drifted down to between the first program verify voltage and the first reference voltage. In response to this determination, the first memory cell is programmed to increase the first threshold voltage of the first memory cell to meet or exceed the first program verify voltage.
    Type: Application
    Filed: January 13, 2025
    Publication date: April 30, 2026
    Inventors: Stefano Surico, SIMONE BARTOLI, STEFANO SIVERO, GUISEPPE MOIOLI, XIAN Liu, THAI LE, AN VO
  • Patent number: 7116532
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Grant
    Filed: November 9, 2004
    Date of Patent: October 3, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Matthew Joseph Carey, Eric Edward Fullerton, Bruce Alvin Gurney, Thai Le, Stefan Maat, Philip Milton Rice
  • Patent number: 6992866
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: January 31, 2006
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Matthew Joseph Carey, Eric Edward Fullerton, Bruce Alvin Gurney, Thai Le, Stefan Maat, Philip Milton Rice
  • Publication number: 20050122636
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Application
    Filed: November 9, 2004
    Publication date: June 9, 2005
    Inventors: Matthew Carey, Eric Fullerton, Bruce Gurney, Thai Le, Stefan Maat, Philip Rice
  • Publication number: 20050036244
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Application
    Filed: September 27, 2004
    Publication date: February 17, 2005
    Inventors: Matthew Carey, Eric Fullerton, Bruce Gurney, Thai Le, Stefan Maat, Philip Rice
  • Publication number: 20050030674
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Application
    Filed: August 31, 2004
    Publication date: February 10, 2005
    Inventors: Matthew Carey, Eric Fullerton, Bruce Gurney, Thai Le, Stefan Maat, Philip Rice
  • Patent number: 6836392
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: December 28, 2004
    Assignee: Hitachi Global Storage Technologies Netherlands, B.V.
    Inventors: Matthew Joseph Carey, Eric Edward Fullerton, Bruce Alvin Gurney, Thai Le, Stefan Maat, Philip Milton Rice
  • Publication number: 20040164210
    Abstract: Systems and devices relating to the mounting of video display units (VDUs) in vehicles. A mounting system includes a mounting plate that is attached to the floor of the rear passenger area of the vehicle. A hollow shaft is attached to the mounting plate and is vertically positioned relative to the floor. At the top of the shaft, a VDU enclosure is mounted by inserting a portion of the enclosure in the shaft. The enclosure is rigid and has a transparent viewing panel which corresponds to the screen of the terminal contained in the enclosure. The enclosure may be rotated about the shaft and the shaft can pivot abut the plate. This allows the VDU to be positioned to the optimal position for viewing by any of the rear passengers. Also, the VDU may be moved away from either the rear of the front passengers as the need arises. In case of a vehicular accident, the pivotable nature of the shaft allows the terminal unit to not be a safety hazard.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 26, 2004
    Inventors: Thai Le, Ali Mortazavi
  • Publication number: 20020154456
    Abstract: An exchange-coupled magnetic structure includes a ferromagnetic layer, a coercive ferrite layer, such as cobalt-ferrite, for biasing the magnetization of the ferromagnetic layer, and an oxide underlayer, such as cobalt-oxide, in proximity to the coercive ferrite layer. The oxide underlayer has a lattice structure of either rock salt or a spinel and exhibits no magnetic moment at room temperature. The underlayer affects the structure of the coercive ferrite layer and therefore its magnetic properties, providing increased coercivity and enhanced thermal stability. As a result, the coercive ferrite layer is thermally stable at much smaller thicknesses than without the underlayer. The exchange-coupled structure is used in spin valve and magnetic tunnel junction magnetoresistive sensors in read heads of magnetic disk drive systems. Because the coercive ferrite layer can be made as thin as 1 nm while remaining thermally stable, the sensor satisfies the narrow gap requirements of high recording density systems.
    Type: Application
    Filed: April 24, 2001
    Publication date: October 24, 2002
    Inventors: Matthew Joseph Carey, Eric Edward Fullerton, Bruce Alvin Gurney, Thai Le, Stefan Maat, Philip Milton Rice