Patents by Inventor Mohamad A. Sarfaraz

Mohamad A. Sarfaraz 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: 5522963
    Abstract: Method for thermally-machining large area features, and screen-depositing metallurgy on a ceramic dielectric greensheet. The method comprises an improvement over the conventional integrated disposable mask process, and involves the steps of outlining the large feature areas through a masking film laminated to a greensheet, using a high intensity energy beam such as a laser beam, electron beam, photon beam, etc, forming a stencil sheet having corresponding large area feature openings, and laminating the stencil sheet in registration over the masking film. An adhesive sheet is pressed against the back of the stencil sheet, through the stencil openings, to adhere to the outline features on the masking film and to remove them when the stencil sheet is separated from the masking film. Conductive paste is applied to the greensheet, through the large feature openings in the masking film, and the electroded greensheet is fired for use in preparing multi-layer ceramic packages.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: June 4, 1996
    Assignee: International Business Machines Corporation
    Inventors: Robert H. Anders, Jr., William Cobbett, Jr., William T. Grant, Mark W. Kapfhammer, Nabil A. Rizk, Nirmal S. Sandhu, Mohamad A. Sarfaraz, You-Wen Yau