Patents by Inventor Ruturaj Nandkumar Pujari

Ruturaj Nandkumar Pujari 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: 20230187284
    Abstract: Embodiments of the present invention are directed to in-situ wafer feedback schemes and systems for providing localized process-based compensation on a semiconductor wafer. In a non-limiting embodiment of the invention, a plurality of test structures are formed on a surface of a semiconductor wafer. The semiconductor wafer is placed under a detection surface of an in-situ feedback tool comprising one or more sensors. The in-situ feedback tool measures a property of each of the plurality of test structures and determines a local condition of the semiconductor wafer for each measured property of the plurality of test structures. A localized process-based compensation is provided on the surface of the semiconductor wafer for each local condition.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 15, 2023
    Inventors: Saumya Sharma, Ruturaj Nandkumar Pujari, Ashim Dutta, Chih-Chao Yang
  • Publication number: 20230170266
    Abstract: A system includes a wafer including at least an electronic component and a probe pad including a built-in back-end-of-line (BEOL) interconnect structure to test the electronic component. The electronic component is tested by the probe pad without building full BEOL interconnect circuits on the wafer. The probe pad is aligned with the wafer by using alignment marks. A prober alignment camera is employed to locate the alignment marks.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 1, 2023
    Inventors: Ashim Dutta, Ruturaj Nandkumar Pujari, Saumya Sharma, Chih-Chao Yang