Patents by Inventor Da Seul Yang

Da Seul Yang 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).

  • Self-Erasable And Rewritable Optoexcitonic Platform For Anti-Tamper Hardware
    Publication number: 20230299020
    Abstract: An anti-tamper module includes a substrate and a photoisomerization (PI) layer formed on the substrate. The PI layer comprises molecules configured to transition from a first state to a second state in response to exposure to a first type of light and transition from the second state to the first state in response to exposure to a second type of light, and transitioning a selected portion of the PI layer to the first state while surrounding portions of the PI layer remain in the second state causes physical deformation of the PI layer. An excitonic layer is arranged on the PI layer. An electrical characteristic of the excitonic layer is sensitive to strain caused by the physical deformation of the PI layer such that an excitonic property of the excitonic layer changes in a region corresponding to the selected portion of the PI layer.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Inventors: Jinsang KIM, Parag DEOTARE, Da Seul YANG, Che-Hsuan CHENG
  • SELF-ERASABLE AND REWRITABLE OPTOEXCITONIC PLATFORM FOR ANTI-TAMPER HARDWARE
    Publication number: 20220093530
    Abstract: An anti-tamper module includes a substrate and a photoisomerization (PI) layer formed on the substrate. The PI layer comprises molecules configured to transition from a first state to a second state in response to exposure to a first type of light and transition from the second state to the first state in response to exposure to a second type of light, and transitioning a selected portion of the PI layer to the first state while surrounding portions of the PI layer remain in the second state causes physical deformation of the PI layer. An excitonic layer is arranged on the PI layer. An electrical characteristic of the excitonic layer is sensitive to strain caused by the physical deformation of the PI layer such that an excitonic property of the excitonic layer changes in a region corresponding to the selected portion of the PI layer.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 24, 2022
    Inventors: Jinsang KIM, Parag Deotare, Da Seul Yang, Che-Hsuan Cheng