Patents by Inventor Cheow Hin Sim

Cheow Hin Sim 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: 20170279040
    Abstract: There is provided a magnetic element including a ferromagnetic reference layer having a fixed or pinned magnetization direction, a ferromagnetic free layer having a switchable magnetization direction based on spin transfer torque, an insulating spacer layer disposed between the ferromagnetic reference layer and the ferromagnetic free layer such that the ferromagnetic reference layer, the insulating spacer layer, and the ferromagnetic free layer form a magnetic tunnel junction, and at least one multilayer disposed on or in the magnetic tunnel junction, the at least one multilayer including Co/Ni/Pt which exhibits perpendicular magnetic anisotropy. There is also provided a corresponding method of fabricating such a magnetic element and a magnetic memory device including an array of such magnetic elements.
    Type: Application
    Filed: September 25, 2015
    Publication date: September 28, 2017
    Inventors: Michael TRAN, Cheow Hin SIM
  • Patent number: 9601174
    Abstract: A magnetoelectric device is provided. The magnetoelectric device includes a reference magnetic layer structure having a fixed magnetization orientation, and a synthetic antiferromagnetic layer structure including a free magnetic layer structure and a coupling magnetic layer structure antiferromagnetically coupled to each other, each of the free magnetic layer structure and the coupling magnetic layer structure having a magnetization orientation that is variable, wherein the reference magnetic layer structure and the synthetic antiferromagnetic layer structure are arranged one over the other. According to further embodiments of the present invention, a method for forming a magnetoelectric device and a writing method for a magnetoelectric device are also provided.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: March 21, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Michael Tran, Cheow Hin Sim, Guchang Han
  • Publication number: 20150255135
    Abstract: A magnetoelectric device is provided. The magnetoelectric device includes a reference magnetic layer structure having a fixed magnetization orientation, and a synthetic antiferromagnetic layer structure including a free magnetic layer structure and a coupling magnetic layer structure antiferromagnetically coupled to each other, each of the free magnetic layer structure and the coupling magnetic layer structure having a magnetization orientation that is variable, wherein the reference magnetic layer structure and the synthetic antiferromagnetic layer structure are arranged one over the other. According to further embodiments of the present invention, a method for forming a magnetoelectric device and a writing method for a magnetoelectric device are also provided.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 10, 2015
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Michael TRAN, Cheow Hin SIM, Guchang HAN
  • Publication number: 20150028440
    Abstract: According to embodiments of the present invention, a magnetoresistive device is provided. The magnetoresistive device includes a free magnetic layer structure having a magnetization orientation that is variable, and a spin orbit coupling structure including a tunnel barrier including a metal oxide, and a metal layer, wherein the tunnel barrier and the metal layer are arranged one over the other, wherein the spin orbit coupling structure is adapted to generate, in response to an applied current, a field to interact with the free magnetic layer structure for switching the magnetization orientation of the free magnetic layer structure. According to further embodiments of the present invention, a method of forming a magnetoresistive device is also provided.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Ruisheng Liu, Hao Meng, Vinayak Bharat Naik, Cheow Hin Sim