Patents by Inventor Mike Juha

Mike Juha 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).

  • Method and apparatus for performing automated circuit board solder quality inspections
    Patent number: 4809308
    Abstract: A method and apparatus for measuring structural characteristics of a manufactured circuit board containing solder joints by automated real-time digital X-ray radiographic inspection techniques. A circuit board under examination is automatically positioned by a digitally controlled multi-axis positioning system between an electronic X-ray source and an electronic X-ray imaging system. X-rays, in a beam of X-rays from the X-ray source, are directed towards the circuit board. The X-rays are absorbed, scattered and transmitted through the circuit board. The X-rays transmitted through the circuit board are directed upon the X-ray imaging system. The X-ray imaging system converts the transmitted X-rays into digital images which represent the radiographic density of the portion of the circuit board under examination. The digital images are stored within a digital image processor.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: February 28, 1989
    Assignee: IRT Corporation
    Inventors: John Adams, Juan Amoroso, Jr., Paul Axford, Phil Bowles, Mike Juha, Van Nguyen, Charles Preskitt, Ed Ross, Doug Thompson, Paul Turner
  • Method and apparatus for performing automated circuit board solder quality inspections
    Patent number: RE35423
    Abstract: A method and apparatus for measuring structural characteristics of a manufactured circuit board containing solder joints by automated real-time digital X-ray radiographic inspection techniques. A circuit board under examination is automatically positioned by a digitally controlled multi-axis positioning system between an electronic X-ray source and an electronic X-ray imaging system, X-rays, in a beam of X-rays from the X-ray source, are directed towards the circuit board. The X-rays are absorbed, scattered and transmitted through the circuit board. The X-rays transmitted through the circuit board are directed upon the X-ray imaging system. The X-ray imaging system converts the transmitted X-rays into digital images which represent the radiographic density of the portion of the circuit board under examination. The digital images are stored within a digital image processor.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: January 14, 1997
    Assignee: ThermoSpectra Corporation
    Inventors: John Adams, Juan Amoroso, Jr., Paul Axford, Phil Bowles, Mike Juha, Van Nguyen, Charles Preskitt, Ed Ross, Doug Thompson, Paul Turner