Patents by Inventor Roy John Henson

Roy John Henson 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).

  • Self-referencing voltage regulator
    Patent number: 8154315
    Abstract: A voltage regulator includes an input terminal for receiving a power input having a first voltage level, and an output terminal for generating a power output. A reference signal having a second voltage level is derived from the first voltage level adjusted with a predetermined offset value for controlling the power output to be at a third voltage level proportional to the second voltage level.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: April 10, 2012
    Assignee: FormFactor, Inc.
    Inventors: Roy John Henson, Harry Joe Tabor
  • Self-Referencing Voltage Regulator
    Publication number: 20090251123
    Abstract: A voltage regulator includes an input terminal for receiving a power input having a first voltage level, and an output terminal for generating a power output. A reference signal having a second voltage level is derived from the first voltage level adjusted with a predetermined offset value for controlling the power output to be at a third voltage level proportional to the second voltage level.
    Type: Application
    Filed: July 3, 2008
    Publication date: October 8, 2009
    Applicant: FormFactor, Inc.
    Inventors: Roy John Henson, Harry Joe Tabor
  • Probe head arrays
    Patent number: 7282933
    Abstract: A probe head for testing devices formed on a semiconductor wafer includes a plurality of probe DUT (device under test) arrays. Each device under test includes pads that are urged into pressure contact with probes in a corresponding probe DUT array. The probe arrays patterns have discontinuities such as indentations, protuberances, islands and openings that are opposite at least one device when the probes contact the pads.
    Type: Grant
    Filed: January 3, 2005
    Date of Patent: October 16, 2007
    Assignee: FormFactor, Inc.
    Inventors: Roy John Henson, John M. Long