Patents by Inventor Patrick D. Riggs

Patrick D. Riggs 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).

  • Solder paste and residue
    Patent number: 6300778
    Abstract: This invention relates to an on-line statistical process control device for solder paste and residues. The invention consists of electronics hardware, software, and probing systems. The electrical hardware of the invention provides voltage and current measurements of solder paste materials, the software of the invention controls the hardware, provides real-time complex, non-linear least squares curve fitting for equivalent circuit analysis, data storage and retrieval of circuit parameters and behavior, and statistical process control tracking and charting. The probing systems of the invention allows for 2, 3, and 4 probe surface and bulk measurements of the solder paste and residues.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: October 9, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael D. Frederickson, Martin A. Seitz, Richard W. Hirthe, Mohammad N. Amin, Anthony L. Delieto, Alex E. Cragoe, Jeff K. Latham, Patrick D. Riggs
  • Solder paste and residue measurement system
    Patent number: 6005399
    Abstract: This invention relates to an on-line statistical process control device for solder paste and residues. The invention consists of electronics hardwa software, and probing systems. The electrical hardware of the invention provides voltage and current measurements of solder paste materials, the software of the invention controls the hardware, provides real-time complex, non-linear least squares curve fitting for equivalent circuit analysis, data storage and retrieval of circuit parameters and behavior, and to statistical process control tracking and charting. The probing systems of the invention allows for 2, 3, and 4 probe surface and bulk measurements of the solder paste and residues.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: December 21, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael D. Frederickson, Martin A. Seitz, Richard W. Hirthe, Mohammad N. Amin, Anthony L. Delieto, Alex E. Cragoe, Jeff K. Latham, Patrick D. Riggs
  • Solder paste and residue measurement system
    Patent number: 5656933
    Abstract: This invention relates to an on-line statistical process control device for solder paste and residues. The invention consists of electronics hardware, software, and probing systems. The electrical hardware of the invention provides voltage and current measurements of solder paste materials, the software of the invention controls the hardware, provides real-time complex, nonlinear least squares curve fitting for equivalent circuit analysis, data storage and retrieval of circuit parameters and behavior, and statistical process control tracking and charting. The probing systems of the invention allows for 2, 3, and 4 probe surface and bulk measurements of the solder paste and residues.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: August 12, 1997
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael D. Frederickson, Martin A. Seitz, Richard W. Hirthe, Mohammad N. Amin, Anthony L. DeLieto, Alex E. Cragoe, Jeff K. Latham, Patrick D. Riggs