Patents by Inventor Deborah A. Sylvester

Deborah A. Sylvester 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).

  • Method and device including reworkable alpha particle barrier and corrosion barrier
    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
  • METHOD AND DEVICE INCLUDING REWORKABLE ALPHA PARTICLE BARRIER AND CORROSION BARRIER
    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
  • Method and device including reworkable alpha particle barrier and corrosion barrier
    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
  • Single mask screening process and structure produced thereby
    Publication number: 20010006116
    Abstract: A process of forming a multi-layer feature on a ceramic or organic article in which first and second layers of paste are sequentially screened through a screening mask wherein the screening mask has not been moved between screening steps. A structure produced by this process is also disclosed.
    Type: Application
    Filed: January 18, 2001
    Publication date: July 5, 2001
    Applicant: International Business Machines Corporation
    Inventors: James M. Blazick, Michael E. Cropp, James N. Humenik, Gerald H. Leino, Jawahar P. Nayak, Frank V. Ranalli, Deborah A. Sylvester, John A. Trumpetto, James C. Utter, Rao V. Vallabhaneni, Renne L. Weisman
  • Single mask screening process
    Patent number: 6238741
    Abstract: A process of forming a multi-layer feature on a ceramic or organic article in which first and second layers of paste are sequentially screened through a screening mask wherein the screening mask has not been moved between screening steps. A structure produced by this process is also disclosed.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: May 29, 2001
    Assignee: International Business Machines Corporation
    Inventors: James M. Blazick, Michael E. Cropp, James N. Humenik, Gerald H. Leino, Jawahar P. Nayak, Frank V. Ranalli, Deborah A. Sylvester, John A. Trumpetto, James C. Utter, Rao V. Vallabhaneni, Renee L. Weisman