The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 1993
Filed:
Nov. 05, 1990
Applicant:
Inventors:
Volker Liedke, Elsenfeld/Eichelsbach, DE;
Karl H Grasmann, Stadprozelten, DE;
Hans-Jurgen Albrecht, Berlin, DE;
Harald Wittrich, Berlin, DE;
Wilfred John, Berlin, DE;
Wolfgang Scheel, Berlin, DE;
Assignee:
WLS Karl-Heinz Grasmann Weichlotanlagen-und Service, Faulbach/Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
228206 ; 228205 ; 427 96 ; 427534 ; 118 50 ; 118623 ;
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.