Patents by Inventor Roger Yerdon

Roger Yerdon 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).

  • Publication number: 20070108638
    Abstract: A robust alignment mark used in semiconductor processing to help deter the expansion of cracks and delamination caused by the cutting of a dicing blade. A cross-shaped structure is used as a line site for alignment of the dicing blade. A plurality of rectangular elements is situated about the periphery of the alignment mark and populated with via bar structures that are interconnected at each level of the wafer, and laid in a serpentine fashion throughout each element to expose more of the via bar structure surface area to propagating cracks. The rectangular elements are formed of different sizes to expose more surface area to propagating cracks. A plurality of square, metal-level structures is formed in the area between the cross-shaped structure and the peripherally placed, rectangular elements.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 17, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael Lane, Christopher Muzzy, Roger Yerdon