Patents by Inventor Seurabh Dutta Chowdhury

Seurabh Dutta Chowdhury 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).

  • Protection of low-k dielectric in a passivation level
    Patent number: 7192867
    Abstract: In one embodiment, a passivation level includes a low-k dielectric. To prevent the low-k dielectric from absorbing moisture when exposed to air, exposed portions of the low-k dielectric are covered with spacers. As can be appreciated, this facilitates integration of low-k dielectrics in passivation levels. Low-k dielectrics in passivation levels help lower capacitance on metal lines, thereby reducing RC delay and increasing signal propagation speeds.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: March 20, 2007
    Assignee: Cypress Semiconductor Corporation
    Inventors: Mira Ben-Tzur, Krishnaswamy Ramkumar, Seurabh Dutta Chowdhury, Michal Efrati Fastow