Patents by Inventor Zongxia GUO

Zongxia GUO 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: 11991933
    Abstract: The present disclosure provides a magnetic random-access memory, comprising: an antiferromagnetic layer; a magnetic tunnel junction disposed on the antiferromagnetic layer and comprising a ferromagnetic layer disposed corresponding to the antiferromagnetic layer; wherein the ferromagnetic layer of the magnetic tunnel junction has in-plane magnetic anisotropy, and an exchange bias field is formed between the antiferromagnetic layer and the ferromagnetic layer by an annealing process. A direction of the exchange bias field is changed by a spin orbit torque, thereby changing a direction of a magnetic moment of the ferromagnetic layer and realizing data writing. The present disclosure can improve a thermal stability of the i-MTJ and reduce a lateral dimension of the i-MTJ, thereby improving a storage density of the magnetic memory.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: May 21, 2024
    Assignee: BEIHANG UNIVERSITY
    Inventors: Weisheng Zhao, Daoqian Zhu, Zongxia Guo, Kaihua Cao, Shouzhong Peng
  • Publication number: 20220102622
    Abstract: The present disclosure provides a magnetic random-access memory, comprising: an antiferromagnetic layer; a magnetic tunnel junction disposed on the antiferromagnetic layer and comprising a ferromagnetic layer disposed corresponding to the antiferromagnetic layer; wherein the ferromagnetic layer of the magnetic tunnel junction has in-plane magnetic anisotropy, and an exchange bias field is formed between the antiferromagnetic layer and the ferromagnetic layer by an annealing process. A direction of the exchange bias field is changed by a spin orbit torque, thereby changing a direction of a magnetic moment of the ferromagnetic layer and realizing data writing. The present disclosure can improve a thermal stability of the i-MTJ and reduce a lateral dimension of the i-MTJ, thereby improving a storage density of the magnetic memory.
    Type: Application
    Filed: January 28, 2021
    Publication date: March 31, 2022
    Inventors: Weisheng ZHAO, Daoqian ZHU, Zongxia GUO, Kaihua CAO, Shouzhong PENG