Patents by Inventor Phillip LOPRESTI

Phillip LOPRESTI 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).

  • Perpendicular magnetic memory using spin-orbit torque
    Patent number: 10600460
    Abstract: Spin-orbit-torque (SOT) control strip lines are provided along the sides of free layers in perpendicular magnetic tunnel junction devices. Current flowing through such SOT control strip lines injects spin current into the free layers such that spin torque is applied to the free layers. The spin torque can be used to force the magnetic state of the free layer to a particular state based on the direction of the current through the SOT control strip line. In other embodiments, the SOT provides an assist to spin-transfer torque generated by current flowing vertically through the magnetic tunnel junction. Some embodiments have dedicated strip lines for a single magnetic tunnel junction such that a three-terminal device results.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 24, 2020
    Assignee: Everspin Technologies, Inc.
    Inventors: Sarin Deshpande, Sanjeev Aggarwal, Jason Janesky, Jon Slaughter, Phillip Lopresti
  • PERPENDICULAR MAGNETIC MEMORY USING SPIN-ORBIT TORQUE
    Publication number: 20190115060
    Abstract: Spin-orbit-torque (SOT) control strip lines are provided along the sides of free layers in perpendicular magnetic tunnel junction devices. Current flowing through such SOT control strip lines injects spin current into the free layers such that spin torque is applied to the free layers. The spin torque can be used to force the magnetic state of the free layer to a particular state based on the direction of the current through the SOT control strip line. In other embodiments, the SOT provides an assist to spin-transfer torque generated by current flowing vertically through the magnetic tunnel junction. Some embodiments have dedicated strip lines for a single magnetic tunnel junction such that a three-terminal device results.
    Type: Application
    Filed: October 11, 2018
    Publication date: April 18, 2019
    Applicant: Everspin Technologies, Inc.
    Inventors: Sarin DESHPANDE, Sanjeev AGGARWAL, Jason JANESKY, Jon SLAUGHTER, Phillip LOPRESTI