Patents Assigned to WLS Karl-Heinz Grasmann Weichlotanlagen-und Service
  • Procedure for processing joints to be soldered
    Patent number: 5192582
    Abstract: The invention is directed to a procedure for processing joints to be soldered, preferably printed circuit boards fitted with electric components, and an arrangement for executing this procedure, wherein the joints are subjected to plasma treatment before the soldering process. The joints may be subjected to plasma treatment separately or in the relative position necessary for the soldering process.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: March 9, 1993
    Assignee: WLS Karl-Heinz Grasmann Weichlotanlagen-und Service
    Inventors: Volker Liedke, Karl H. Grasmann, Hans-Jurgen Albrecht, Harald Wittrich, Wilfred John, Wolfgang Scheel