Patents by Inventor Stephen RAMEY

Stephen RAMEY 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: 10886417
    Abstract: Techniques and mechanisms for changing a consistency with which a cell circuit (“cell”) settles into a given state. In one embodiment, a cell settles into a preferred state based on a relative polarity between respective voltages of a first rail and a second rail. Based on the preferred state, a hot carrier injection (HCl) stress is applied to change a likelihood of the cell settling into the preferred state. Applying the HCl stress includes driving off-currents of two PMOS transistors of the cell while the relative polarity is reversed. In another embodiment, a cell array comprises multiple cells which are each classified as being a respective one of a physically unclonable function (PUF) type or a random number generator (RNG) type. A cell is selected for biasing, and a stress is applied, based on each of: that cell's preferred state, that cell's classification, and another cell's classification.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: January 5, 2021
    Assignee: Intel Corporation
    Inventors: Kuan-Yueh Shen, Rachael Parker, Stephen Ramey
  • Publication number: 20200313003
    Abstract: Techniques and mechanisms for changing a consistency with which a cell circuit (“cell”) settles into a given state. In one embodiment, a cell settles into a preferred state based on a relative polarity between respective voltages of a first rail and a second rail. Based on the preferred state, a hot carrier injection (HCI) stress is applied to change a likelihood of the cell settling into the preferred state. Applying the HCI stress includes driving off-currents of two PMOS transistors of the cell while the relative polarity is reversed. In another embodiment, a cell array comprises multiple cells which are each classified as being a respective one of a physically unclonable function (PUF) type or a random number generator (RNG) type. A cell is selected for biasing, and a stress is applied, based on each of: that cell's preferred state, that cell's classification, and another cell's classification.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 1, 2020
    Applicant: Intel Corporation
    Inventors: Kuan-Yueh SHEN, Rachael PARKER, Stephen RAMEY