Patents by Inventor Satyanayana V. Nitta

Satyanayana V. Nitta 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).

  • Semiconductor chips including passivation layer trench structure
    Patent number: 8803318
    Abstract: An integrated circuit including an active region a passive region and a cut line in the passive region includes a passivation layer that includes an outer nitride layer over an oxide layer. The integrated circuit also includes a crack stop below the passivation layer and in the passive region, and a solder ball in the active region. The passivation layer has a trench formed therein in a location that is further from the active region than the crack stop and closer to the active region than the cut line, the trench passing completely through the outer nitride layer and a least a portion of the way through the oxide layer.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: August 12, 2014
    Assignee: International Business Machines Corporation
    Inventors: Deepak Kulkarni, Michael W. Lane, Satyanayana V. Nitta, Shom Ponoth
  • SEMICONDUCTOR CHIPS INCLUDING PASSIVATION LAYER TRENCH STRUCTURE
    Publication number: 20130207263
    Abstract: An integrated circuit including an active region a passive region and a cut line in the passive region includes a passivation layer that includes an outer nitride layer over an oxide layer. The integrated circuit also includes a crack stop below the passivation layer and in the passive region, and a solder ball in the active region. The passivation layer has a trench formed therein in a location that is further from the active region than the crack stop and closer to the active region than the cut line, the trench passing completely through the outer nitride layer and a least a portion of the way through the oxide layer.
    Type: Application
    Filed: March 28, 2013
    Publication date: August 15, 2013
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Deepak Kulkarni, Michael W. Lane, Satyanayana V. Nitta, Shom Ponoth