Patents by Inventor John Cassels

John Cassels 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: 10705121
    Abstract: A continuity testing and cleaning fixture includes a continuity test area disposed on a portion of a first surface of the fixture, wherein the continuity test area comprises an upper region comprising at least 99.99 wt % tungsten. The continuity testing and cleaning fixture may be used in a method involving contacting at least two conductive elements of a probe card with a continuity test area of a continuity testing and cleaning fixture, wherein the continuity test area comprises an upper region comprising at least 99.99 wt % tungsten; determining an electrical resistance between the at least two conductive elements; and cleaning the at least two conductive elements with at least one cleaning zone of the continuity testing and cleaning fixture in response to determining the electrical resistance to be above a first threshold.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 7, 2020
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Ronald A. Feroli, John Cassels, Matthew F. Stanton
  • Publication number: 20190242927
    Abstract: A continuity testing and cleaning fixture includes a continuity test area disposed on a portion of a first surface of the fixture, wherein the continuity test area comprises an upper region comprising at least 99.99 wt % tungsten. The continuity testing and cleaning fixture may be used in a method involving contacting at least two conductive elements of a probe card with a continuity test area of a continuity testing and cleaning fixture, wherein the continuity test area comprises an upper region comprising at least 99.99 wt % tungsten; determining an electrical resistance between the at least two conductive elements; and cleaning the at least two conductive elements with at least one cleaning zone of the continuity testing and cleaning fixture in response to determining the electrical resistance to be above a first threshold.
    Type: Application
    Filed: February 6, 2018
    Publication date: August 8, 2019
    Applicant: GLOBALFOUDRIES INC.
    Inventors: Ronald A. Feroli, John Cassels, Matthew F. Stanton
  • Publication number: 20070113134
    Abstract: Reporting and/or analyzing test data from a plurality of tests of an array structure using a data array is disclosed. One method includes obtaining the test data, and reporting the test data in a data array, which includes at least two portions representing different tests. Data stored in the data array is organized according to a translation table, which describes the locations of data for tests and criteria for data to be analyzed within the data array. Numerous other data arrangements such as a coordinate file listing a pre-defined maximum number of fail points, or a chip report including fail points by chip may also be generated. The data array reports all test data in a more easily generated and stored form, and may be converted to an image. A data analysis method for analyzing data using the data array is also disclosed.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 17, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: William Ferrante, John Cassels, Stephen Wu