Patents by Inventor Alain Quintard

Alain Quintard 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 inspecting a populated printed circuit board, particularly for inspecting solder joints on the board and a system for working this method
    Patent number: 5208528
    Abstract: The invention relates to a method for inspecting a populated printed circuit board, particularly for inspecting the solder joints on the board, and advantageously usable for boards populated with surface-mount (SM) components. According to the invention, the inspection method comprises at least the following steps:briefly heating the board (or an extensive portion thereof),recording a thermographic image of the board (or of said extensive portion) when said heating step has stopped, and preferably as soon as it stops,analyzing the image by detecting a difference in heat between a predefined standard and the areas of the board to be inspected, for example the soldered areas.The invention also relates to a system for working the inspection method.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: May 4, 1993
    Assignee: Bull S.A.
    Inventor: Alain Quintard