Patents by Inventor Enrico Malavasi

Enrico Malavasi 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: 7487474
    Abstract: An integrated circuit is designed to improve yield when manufacturing the integrated circuit, by obtaining a design element from a set of design elements used in designing integrated circuits. A variant design element is created based on the obtained design element, where a feature of the obtained design element is modified to create the variant design element. A yield to area ratio for the variant design element is determined. If the yield to area ratio of the variant design element is greater than a yield to area ratio of the obtained design element, the variant design element is retained to be used in designing the integrated circuit.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: February 3, 2009
    Assignee: PDF Solutions, Inc.
    Inventors: Dennis Ciplickas, Joe Davis, Christopher Hess, Sherry Lee, Enrico Malavasi, Abdulmobeen Mohammad, Ratibor Radojcic, Brian Stine, Rakesh Vallishayee, Stefano Zanella, Nicola Dragone, Carlo Guardiani, Michel Quarantelli, Stefano Tonello, Joshi Aniruddha
  • Publication number: 20060253810
    Abstract: Library design elements (102) are analyzed for manufacturability to be used in designing an IC chip to be manufactured using a particular manufacturing process. The library design elements from a library are obtained. Manufacturability attributes (104) of the library design elements are determined for the particular manufacturing process, where manufacturability attributes include yield-related attributes. Library views (106) with manufacturability attributes for the library design elements are then generated, which are utilizing by an electronic design automation (EDA) tool.
    Type: Application
    Filed: September 16, 2003
    Publication date: November 9, 2006
    Inventors: Carlo Guardiani, Nicola Dragone, John Kibarian, Enrico Malavasi, Rijko Radocic, Andrzej Strojwas
  • Publication number: 20060101355
    Abstract: An integrated circuit is designed to improve yield when manufacturing the integrated circuit, by obtaining a design element from a set of design elements used in designing integrated circuits. A variant design element is created based on the obtained design element, where a feature of the obtained design element is modified to create the variant design element. A yield to area ratio for the variant design element is determined.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 11, 2006
    Applicant: PDF Solutions, Inc.
    Inventors: Dennis Ciplickas, Joe Davis, Christopher Hess, Sherry Lee, Enrico Malavasi, Abdulmobeen Mohammad, Ratibor Radojcic, Brian Stine, Rakesh Vallishayee, Stefano Zanella, Nicola Dragone, Carlo Guardiani, Michel Quarantelli, Stefano Tonello, Joshi Aniruddha
  • Patent number: 5663891
    Abstract: A system, method, and software product in a computer aided design apparatus for system design, to simultaneously optimize multiple performance criteria models of the system, where the performance criteria models are characterized by convex cost functions based on linear dimensional characteristics of system being designed. One embodiment is provided in a computer aid design environment for integrated circuit design, and used to simultaneously optimize fabrication yield along with other performance criteria. Optimization is provided by converting a structural description of an integrated circuit into a constraint graph, compacting, and modifying the constraint graph to include convex cost functions for selected performance criteria to optimized, such as yield cost functions. The cost functions are then transformed to piecewise linear cost functions. The constraint graph is then expanded by replacing edges having piecewise linear cost function with subgraphs constructed from the piecewise linear cost function.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: September 2, 1997
    Assignee: Cadence Design Systems, Inc.
    Inventors: Cyrus Bamji, Enrico Malavasi