Patents by Inventor Francisco Ledesma Rabadan

Francisco Ledesma Rabadan 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: 10651136
    Abstract: When forming semiconductor devices, plasma-induced damage may be prevented or restricted by providing a conductive path between critical areas and the substrate of the semiconductor device. According to the present disclosure, a negative effect of any such protective structures on the performance of the semiconductor device may be significantly reduced by permanently interrupting the corresponding electrical connection at any appropriate point in time of the manufacturing sequence. Furthermore, respective fuse structures acting as current-sensitive areas may also be implemented in test structures in order to evaluate plasma-induced currents, thereby providing a possibility for a more efficient design of respective protective structures and/or for contributing to superior process control of critical plasma treatments.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: May 12, 2020
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: David Pritchard, Lixia Lei, Francisco Ledesma Rabadan
  • Publication number: 20190074257
    Abstract: When forming semiconductor devices, plasma-induced damage may be prevented or restricted by providing a conductive path between critical areas and the substrate of the semiconductor device. According to the present disclosure, a negative effect of any such protective structures on the performance of the semiconductor device may be significantly reduced by permanently interrupting the corresponding electrical connection at any appropriate point in time of the manufacturing sequence. Furthermore, respective fuse structures acting as current-sensitive areas may also be implemented in test structures in order to evaluate plasma-induced currents, thereby providing a possibility for a more efficient design of respective protective structures and/or for contributing to superior process control of critical plasma treatments.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Inventors: David Pritchard, Lixia Lei, Francisco Ledesma Rabadan