Patents by Inventor Caihua WAN

Caihua WAN 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: 20240120923
    Abstract: Provided are a spin logic device based on a magnetic tunnel junction and an electronic apparatus comprising the same. According to an embodiment, the spin logic device may comprise: a current wiring; a magnetic tunnel junction, which comprises a free magnetic layer, a fixed magnetic layer, and a potential barrier layer located therebetween, which are stacked on the current wiring; and a current source for providing an input current to the current wiring, wherein the input current comprises a first, a second, and a third in-plane currents, directions of which are different from a direction of a magnetization axis of the free magnetic layer or there is a vertical component in that direction, and the first and the second in-plane currents are logical input currents while the third in-plane current is used to control the implementation mode of the spin logic device.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Inventors: Xiufeng HAN, Caihua WAN, Mingkun ZHAO, Ran ZHANG
  • Patent number: 11937513
    Abstract: The present disclosure relates to a magnon spin valve device, a magnon sensor, a magnon field effect transistor, a magnon tunnel junction and a magnon memory. A magnon spin valve device may comprise a first ferromagnetic insulation layer, a non-magnetic conductive layer disposed on the first ferromagnetic insulation layer, and a second ferromagnetic insulation layer disposed on the non-magnetic conductive layer.
    Type: Grant
    Filed: October 24, 2020
    Date of Patent: March 19, 2024
    Assignee: Institute of Physics, Chinese Academy of Sciences
    Inventors: Xiufeng Han, Ping Tang, Chenyang Guo, Caihua Wan
  • Publication number: 20210043829
    Abstract: The present disclosure relates to a magnon spin valve device, a magnon sensor, a magnon field effect transistor, a magnon tunnel junction and a magnon memory. A magnon spin valve device may comprise a first ferromagnetic insulation layer, a non-magnetic conductive layer disposed on the first ferromagnetic insulation layer, and a second ferromagnetic insulation layer disposed on the non-magnetic conductive layer.
    Type: Application
    Filed: October 24, 2020
    Publication date: February 11, 2021
    Applicant: Institute of Physics, Chinese Academy of Sciences
    Inventors: Xiufeng HAN, Ping TANG, Chenyang GUO, Caihua WAN
  • Publication number: 20190207093
    Abstract: The present disclosure relates to a magnon spin valve device, a magnon sensor, a magnon field effect transistor, a magnon tunnel junction and a magnon memory. A magnon spin valve device may comprise a first ferromagnetic insulation layer, a non-magnetic conductive layer disposed on the first ferromagnetic insulation layer, and a second ferromagnetic insulation layer disposed on the non-magnetic conductive layer.
    Type: Application
    Filed: December 19, 2018
    Publication date: July 4, 2019
    Applicant: Institute of Physics, Chinese Academy of Sciences
    Inventors: Xiufeng HAN, Ping TANG, Chenyang GUO, Caihua WAN
  • Patent number: 10153425
    Abstract: The present invention relates to a spin logic device and an electronic equipment comprising the same. A spin logic device may include a Spin Hall effect (SHE) layer formed of a conductive material having Spin Hall effect and configured to receive a first logic input current and a second logic input current, the first logic input current and the second logic input current both being an in-plane current, a magnetic tunnel junction provided on the SHE layer comprising a free magnetic layer in contact with the SHE layer, a barrier layer disposed on the free magnetic layer, and a reference magnetic layer disposed on the barrier layer, and a current wiring in connection to the reference magnetic layer side of the magnetic tunnel junction, the current wiring being in cooperation with the SHE layer to apply a read current passing through the magnetic tunnel junction therebetween.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 11, 2018
    Assignee: INSTITUTE OF PHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xiufeng Han, Caihua Wan, Xuan Zhang
  • Publication number: 20170077392
    Abstract: The present invention relates to a spin logic device and an electronic equipment comprising the same. A spin logic device may include a Spin Hall effect (SHE) layer formed of a conductive material having Spin Hall effect and configured to receive a first logic input current and a second logic input current, the first logic input current and the second logic input current both being an in-plane current, a magnetic tunnel junction provided on the SHE layer comprising a free magnetic layer in contact with the SHE layer, a barrier layer disposed on the free magnetic layer, and a reference magnetic layer disposed on the barrier layer, and a current wiring in connection to the reference magnetic layer side of the magnetic tunnel junction, the current wiring being in cooperation with the SHE layer to apply a read current passing through the magnetic tunnel junction therebetween.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 16, 2017
    Inventors: Xiufeng HAN, Caihua WAN, Xuan ZHANG
  • Patent number: 9130142
    Abstract: The present invention relates to a magnetoresistance device using a semiconductor substrate and a method for manufacturing the same. The magnetoresistance device includes: a semiconductor substrate; an oxidation layer disposed on a surface of the semiconductor substrate; electrodes disposed on the oxidation layer; and at least one diode connected between at least two of the electrodes. The magnetoresistance device of the present invention has excellent performances of a high field magnetoresistance characteristic and high sensitivity at low magnetic field, and has advantages of low power consumption, simple device structure, low cost and simple manufacturing process.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: September 8, 2015
    Assignee: Tsinghua University
    Inventors: Xiaozhong Zhang, Caihua Wan, Xili Gao, Jimin Wang, Lihua Wu
  • Publication number: 20140035076
    Abstract: The present invention relates to a magnetoresistance device using a semiconductor substrate and a method for manufacturing the same. The magnetoresistance device includes: a semiconductor substrate; an oxidation layer disposed on a surface of the semiconductor substrate; electrodes disposed on the oxidation layer; and at least one diode connected between at least two of the electrodes. The magnetoresistance device of the present invention has excellent performances of a high field magnetoresistance characteristic and high sensitivity at low magnetic field, and has advantages of low power consumption, simple device structure, low cost and simple manufacturing process.
    Type: Application
    Filed: April 11, 2012
    Publication date: February 6, 2014
    Applicant: Tsinghua University
    Inventors: Xiaozhong Zhang, Caihua Wan, Xili Gao, Jimin Wang, Lihua Wu
  • Publication number: 20090245608
    Abstract: A body-of-sternum area representing the body of sternum of a subject is extracted from a three-dimensional image obtained by imaging the subject. Further, at least one rib area is extracted from the three-dimensional image. The rib number of each of the at least one rib area is determined based on a position of the body-of-sternum area, the position corresponding to a lower border of the body of sternum, and the position of each of the at least one rib area. Further, at least one vertebra area is extracted from the three-dimensional image. The vertebra number of the at least one vertebra area is determined based on the position of each of the at least one rib area, the rib number of each of the at least one rib area, and the position of the at least one vertebra area.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 1, 2009
    Inventor: Caihua WAN