Patents by Inventor Atso Forstén

Atso Forstén 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 for monitoring solder paste printing process
    Patent number: 6342266
    Abstract: The invention relates to a method for monitoring the paste printing process in the setting and soldering of a circuit board. In the paste printing process, solder paste (5) is spread on the circuit board (4) at the surface mounted devices to be set or at the corresponding solder pads (7) of the connecting pins. According to the invention, at least one paste test pattern (9) is arranged on the circuit board (4), which test pattern consists of a number of test elements (91, 92, 93, 94), shaped like geometrical plane figures on the surface of the circuit board, and which test elements have varying degrees of difficulty in view of the printing process.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: January 29, 2002
    Assignee: Nokia Mobile Phones Limited
    Inventors: Atso Forstén, Timo Liukkonen