Patents by Inventor Rehan Choudhary

Rehan Choudhary 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: 7615850
    Abstract: A method and device comprising an easily reworkable alpha particle barrier is provided. The easily reworkable alpha particle barrier is applied in the space between the surface of the chip and the surface of the substrate, and reduces soft error rate (SER). Further, the easily reworkable alpha particle barrier material is chosen from the group of an organic material, a hydrocarbon, more specifically a polyalphaolefin (PAO) oil, and a polymer or filled polymer; wherein the polyalphaolefin oil has a viscosity below 1000 cSt (at 100° C.). The easily reworkable alpha particle barrier material can be used with multichip modules (MCM's) allowing easy device rework of one or more dies without affecting other dies on the same substrate.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Rehan Choudhary, Benjamin V. Fasano, Sushumna Iruvanti, Daniel D. Reinhardt, Deborah A. Sylvester
  • Publication number: 20080217793
    Abstract: A method and device comprising an easily reworkable alpha particle barrier is provided. The easily reworkable alpha particle barrier is applied in the space between the surface of the chip and the surface of the substrate, and reduces soft error rate (SER). Further, the easily reworkable alpha particle barrier material is chosen from the group of an organic material, a hydrocarbon, more specifically a polyalphaolefin (PAO) oil, and a polymer or filled polymer; wherein the polyalphaolefin oil has a viscosity below 1000 cSt (at 100° C.). The easily reworkable alpha particle barrier material can be used with multichip modules (MCM's) allowing easy device rework of one or more dies without affecting other dies on the same substrate.
    Type: Application
    Filed: April 16, 2008
    Publication date: September 11, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Rehan CHOUDHARY, Benjamin V. Fasano, Sushumna Iruvanti, Daniel D. Reinhardt, Deborah A. Sylvester
  • Patent number: 7381590
    Abstract: A method and device comprising an easily reworkable alpha particle barrier is provided. The easily reworkable alpha particle barrier is applied in the space between the surface of the chip and the surface of the substrate, and reduces soft error rate (SER). Further, the easily reworkable alpha particle barrier material is chosen from the group of an organic material, a hydrocarbon, more specifically a polyalphaolefin (PAO) oil, and a polymer or filled polymer; wherein the polyalphaolefin oil has a viscosity below 1000 cSt (at 100° C.). The easily reworkable alpha particle barrier material can be used with multichip modules (MCM's) allowing easy device rework of one or more dies without affecting other dies on the same substrate.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Rehan Choudhary, Benjamin V. Fasano, Sushumna Iruvanti, Daniel D. Reinhardt, Deborah A. Sylvester
  • Publication number: 20080002363
    Abstract: A direct liquid jet impingement module and associated method of providing such used in cooling of electronic components housed in an electronic package is provided. The module comprises a frame having an orifice to be placed over to-be-cooled components. A manifold is then disposed over the frame, such that the manifold opening is aligned with the frame orifice to ultimately enable fluid impingement on the to-be-cooled components. The manifold is formed to receive an inlet for the flow of coolants and an outlet fitting for removal of dissipated heat. A jet orifice plate is also provided inside the manifold opening, aligned with the frame orifice for directing fluid coolant flow over to-be-cooled components.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Applicant: International Business Machines Corporation
    Inventors: Levi Campbell, Rehan Choudhary, Michael Ellsworth, Kenneth Marston, Hilton Toy
  • Publication number: 20070212820
    Abstract: A method and device comprising an easily reworkable alpha particle barrier is provided. The easily reworkable alpha particle barrier is applied in the space between the surface of the chip and the surface of the substrate, and reduces soft error rate (SER). Further, the easily reworkable alpha particle barrier material is chosen from the group of an organic material, a hydrocarbon, more specifically a polyalphaolefin (PAO) oil, and a polymer or filled polymer; wherein the polyalphaolefin oil has a viscosity below 1000 cSt (at 100° C.). The easily reworkable alpha particle barrier material can be used with multichip modules (MCM's) allowing easy device rework of one or more dies without affecting other dies on the same substrate.
    Type: Application
    Filed: March 9, 2006
    Publication date: September 13, 2007
    Applicant: International Business Machines Corporation
    Inventors: Rehan Choudhary, Benjamin Fasano, Sushumna Iruvanti, Daniel Reinhardt, Deborah Sylvester