Patents by Inventor Hemant Gandhi

Hemant Gandhi 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: 10541136
    Abstract: In one aspect a method of fabricating an n-doped strained germanium (Ge) film is disclosed, which includes depositing a strained Ge film on an underlying substrate, implanting at least one electron-donating dopant in the Ge film, and exposing the implanted Ge film to one or more laser pulses having a pulsewidth in a range of about 1 ns to about 100 ms so as to generate a substantially crystalline strained Ge film. In some embodiments, the pulses can cause melting followed by substantial recrystallization of at least a portion of the implanted Ge film. In some embodiments, the resultant Ge film can have a thickness in a range of about 10 nm to about 1 microns.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: January 21, 2020
    Assignee: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Eric Mazur, Michael J. Aziz, Hemant Gandhi, David Pastor
  • Publication number: 20180151361
    Abstract: In one aspect a method of fabricating an n-doped strained germanium (Ge) film is disclosed, which includes depositing a strained Ge film on an underlying substrate, implanting at least one electron-donating dopant in the Ge film, and exposing the implanted Ge film to one or more laser pulses having a pulsewidth in a range of about 1 ns to about 100 ms so as to generate a substantially crystalline strained Ge film. In some embodiments, the pulses can cause melting followed by substantial recrystallization of at least a portion of the implanted Ge film. In some embodiments, the resultant Ge film can have a thickness in a range of about 10 nm to about 1 microns.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 31, 2018
    Inventors: Eric Mazur, Michael J. Aziz, Hemant Gandhi, David Pastor
  • Patent number: 4958172
    Abstract: A charge transfer imaging cartridge features driver electrodes extending in a first direction and finger electrodes extending in a second direction and defining edge structure straddling the driver electrodes. The driver and finger electrodes are separated by a flexible dielectric layer, preferably a silicone modified polymer.
    Type: Grant
    Filed: August 22, 1989
    Date of Patent: September 18, 1990
    Assignee: Delphax Systems
    Inventors: Robert S. McCallum, Brian McIntosh, Hemant Gandhi