Patents by Inventor Zhiguo Ge

Zhiguo Ge 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: 9460012
    Abstract: A reconfigurable cache architecture is provided. In processor design, as the density of on-chip components increases, a quantity and complexity of processing cores will increase as well. In order to take advantage of increased processing capabilities, many applications will take advantage of instruction level parallelism. The reconfigurable cache architecture provides a cache memory that in capable of being configured in a private mode and a fused mode for an associated multi-core processor. In the fused mode, individual cores of the multi-core processor can write and read data from certain cache banks of the cache memory with greater control over address routing. The cache architecture further includes control and configurability of the memory size and associativity of the cache memory itself.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: October 4, 2016
    Assignees: National University of Singapore, Huawei Technologies Co., Ltd.
    Inventors: Mihai Pricopi, Zhiguo Ge, Yuan Yao, Tulika Mitra, Naxin Zhang
  • Publication number: 20160196840
    Abstract: A magnetic stack is disclosed. The magnetic stack includes a magnetically responsive lamination that includes a ferromagnetic free layer, a synthetic antiferromagnetic (SAF) structure, and a spacer layer positioned between the ferromagnetic free layer and the SAF structure. The magnetically responsive lamination is separated from a sensed data bit stored in an adjacent medium by an air bearing surface (ABS). The stack also includes a first antiferromagnetic (AFM) structure coupled to the SAF structure a predetermined offset distance from the ABS, and a second AFM structure that is separated from the first AFM structure by a first shield layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: Eric Walter Singleton, Zhiguo Ge, Shaun Eric McKinlay, Jae-Young Yi
  • Patent number: 9384762
    Abstract: The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: July 5, 2016
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Eric Walter Singleton, Zhiguo Ge
  • Patent number: 9305578
    Abstract: A magnetic stack is disclosed. The magnetic stack includes a magnetically responsive lamination that includes a ferromagnetic free layer, a synthetic antiferromagnetic (SAF) structure, and a spacer layer positioned between the ferromagnetic free layer and the SAF structure. The magnetically responsive lamination is separated from a sensed data bit stored in an adjacent medium by an air bearing surface (ABS). The stack also includes a first antiferromagnetic (AFM) structure coupled to the SAF structure a predetermined offset distance from the ABS, and a second AFM structure that is separated from the first AFM structure by a first shield layer.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: April 5, 2016
    Assignee: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Zhiguo Ge, Shaun Eric McKinlay, Jae-Young Yi
  • Publication number: 20150325260
    Abstract: A reader stack, such as for a magnetic storage device, the stack having a top synthetic antiferromagnetic (SAF) layer, a magnetic capping layer adjacent to the top SAF layer, an RKKY coupling layer adjacent to the magnetic capping layer opposite the top SAF layer, and a free layer adjacent to the RKKY coupling layer opposite the magnetic capping layer. Also included is a method for biasing a free layer in a reader stack by providing an exchange coupling between the free layer and a top synthetic antiferromagnetic (SAF) layer using a layer having RKKY coupling property positioned between the free layer and the top SAF layer and a magnetic capping layer between the SAF layer and the layer having RKKY coupling property.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 12, 2015
    Applicant: Seagate Technology LLC
    Inventors: Eric W. Singleton, Liwen Tan, Jae-Young Yi, Konstantin Nikolaev, Zhiguo Ge
  • Publication number: 20150302872
    Abstract: The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Inventors: Eric Walter Singleton, Zhiguo Ge
  • Publication number: 20150234744
    Abstract: A reconfigurable cache architecture is provided. In processor design, as the density of on-chip components increases, a quantity and complexity of processing cores will increase as well. In order to take advantage of increased processing capabilities, many applications will take advantage of instruction level parallelism. The reconfigurable cache architecture provides a cache memory that in capable of being configured in a private mode and a fused mode for an associated multi-core processor. In the fused mode, individual cores of the multi-core processor can write and read data from certain cache banks of the cache memory with greater control over address routing. The cache architecture further includes control and configurability of the memory size and associativity of the cache memory itself.
    Type: Application
    Filed: February 18, 2014
    Publication date: August 20, 2015
    Applicants: National University of Singapore, Huawei Technologies Co., Ltd.
    Inventors: Mihai PRICOPI, Zhiguo GE, Yuan YAO, Tulika MITRA, Naxin ZHANG
  • Patent number: 9087535
    Abstract: The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: July 21, 2015
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Eric Walter Singleton, Zhiguo Ge
  • Publication number: 20150116870
    Abstract: The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and provides a current path from a current source to an ABS-region of a spin conductor layer. Spin current diffuses from the spin conductor layer to an adjacent free layer, which generates a measurable electrical voltage in a free layer of the spin transport sensor. The SAF serves as both a magnetic shield and a spin injector to the spin conductor layer.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: Seagate Technology LLC
    Inventors: Eric Walter Singleton, Zhiguo Ge
  • Patent number: 8885300
    Abstract: A magnetic element is generally provided that can be implemented as a data reader. Various embodiments may connect a magnetic stack to a top shield and separate the magnetic stack from a bi-layer side shield. The bi-layer side shield may have a fixed magnetization layer and a soft magnetic layer each magnetically isolated from the top shield.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: November 11, 2014
    Assignee: Seagate Technology LLC
    Inventors: Shaun Eric McKinlay, Zhiguo Ge, Eric Walter Singleton, Mohammed Shariat Ullah Patwari, Victor Boris Sapozhnikov
  • Publication number: 20140218823
    Abstract: A magnetic element is generally provided that can be implemented as a data reader. Various embodiments may connect a magnetic stack to a top shield and separate the magnetic stack from a bi-layer side shield. The bi-layer side shield may have a fixed magnetization layer and a soft magnetic layer each magnetically isolated from the top shield.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Shaun Eric McKinlay, Zhiguo Ge, Eric Walter Singleton, Mohammed Shariat Ullah Patwari, Victor Boris Sapozhnikov