Patents by Inventor Sowlati Tirdad

Sowlati Tirdad 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).

  • ESD protection circuit for use in RF CMOS IC design
    Patent number: 6894567
    Abstract: An improved method is presented for adding ESD protection to large signal MOS circuits. Each of the ESD and the MOS devices are separately connected off chip to rigid voltage points, thereby eliminating additional capacitive loading of MOS devices. An improved RF MOS amplifier is presented which implements the method of the invention. An ESD device, comprising back to back diodes, is connected to the Vdd and GND nodes off chip, thus insulating the amplifying transistor from any performance degradative interaction with the ESD device due to transient forward biasing. The method and apparatus are easily extended to circuits comprising any number of MOS devices.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: May 17, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Vathulya Vickram, Govil Alok, Sowlati Tirdad
  • ESD protection circuit for use in RF CMOS IC design
    Publication number: 20030102923
    Abstract: An improved method is presented for adding ESD protection to large signal MOS circuits. Each of the ESD and the MOS devices are separately connected off chip to rigid voltage points, thereby eliminating additional capacitive loading of MOS devices.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 5, 2003
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Vathulya Vickram, Govil Alok, Sowlati Tirdad