Patents by Inventor Ahmad Chatila

Ahmad Chatila 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: 7355880
    Abstract: A semiconductor device memory cell (100) can include a built-in capacitor for reducing a soft-error rate (SER). A memory cell (100) can include a first inverter (102) and second inverter (104) arranged in a cross-coupled configuration. A capacitor (110) can be coupled between a first storage node (106) and second storage node (108). A capacitor (110) can be a “built-in” capacitor formed with interconnect wirings utilized to connect memory cell circuit components.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: April 8, 2008
    Assignee: Cypress Semiconductor Corporation
    Inventors: Bo Jin, Ahmad Chatila, Kaichiu Wong
  • Patent number: 6016012
    Abstract: The present invention relates to semiconductor device containing a via and a method of forming a via in a semiconductor device.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: January 18, 2000
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ahmad Chatila, Kuantai Yeh, James M. Cleeves, Daniel Arnzen, Roger Caldwell
  • Patent number: 5897371
    Abstract: The present invention concerns a process that maintains a second (or "replica") set of alignment marks during existing processing steps used in manufacturing a semiconductor device or integrated circuit, including CMP and other planarization methods. The present invention avoids alignment problems encountered in conventional CMP processes, particularly tungsten CMP. All alignment steps can be realized through one or more subsequent second (or "replica") alignment marks, set and preserved throughout the remaining process steps, thus maintaining alignment integrity. The present method and apparatus concerns a new alignment mark that may be "printed" in a metal layer on the wafer, for example, a local interconnect or contact layer. The new alignment mark is generally not subjected to planarization or to an "open frame" process. The new alignment mark may also be used to re-etch other alignment marks directly onto the layer conventionally causing alignment problems, such as those created following CMP.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: April 27, 1999
    Assignee: Cypress Semiconductor Corp.
    Inventors: Kuantai Yeh, Ahmad Chatila, Shahin Sharifzadeh