Patents by Inventor Ravi Todi

Ravi Todi 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).

  • Structure and method for forming isolation and buried plate for trench capacitor
    Patent number: 8637958
    Abstract: A structure and method for forming isolation and a buried plate for a trench capacitor is disclosed. Embodiments of the structure comprise an epitaxial layer serving as the buried plate, and a bounded deep trench isolation area serving to isolate one or more deep trench structures. Embodiments of the method comprise angular implanting of the deep trench isolation area to form a P region at the base of the deep trench isolation area that serves as an anti-punch through implant.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: January 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: Abhishek Dube, Subramanian S. Iyer, Babar Ali Khan, Oh-jung Kwon, Junedong Lee, Paul C. Parries, Chengwen Pei, Gerd Pfeiffer, Ravi Todi, Geng Wang
  • Frequency divider with variable capacitance
    Patent number: 7164358
    Abstract: Method and apparatus for a frequency divider using variable capacitance are described.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: January 16, 2007
    Assignee: Sensormatic Electronics Corporation
    Inventors: Ming-Ren Lian, Ravi Todi, Kevin Coffey, Kalpathy Sundaram, Parag Gadkari
  • Frequency divider with variable capacitance
    Publication number: 20050179551
    Abstract: Method and apparatus for a frequency divider using variable capacitance are described.
    Type: Application
    Filed: August 12, 2004
    Publication date: August 18, 2005
    Inventors: Ming-Ren Lian, Ravi Todi, Kevin Coffey, Kalpathy Sundaram, Parag Gadkari