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:
Nov. 10, 1992
Filed:
Dec. 16, 1991
Applicant:
Inventor:
Donald A Elliott, Brossard, CA;
Assignee:
Electrovert Ltd., LaPrairie, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ; C25F / ;
U.S. Cl.
CPC ...
204140 ; 2042 / ;
Abstract
The application of electrochemical reduction treatment liquids and electroless reduction treatment liquids to elements such as circuit boards for cleaning metallic surfaces in preparation for soldering is accomplished using a wave of the treatment liquid over a liquid tank. A wave treatment has advantages over spraying, which causes too much atomizing, and dipping, which is slow and requires complicated conveyors that are multi-directional. The method comprises forming a wave of reduction treatment liquid in an inert atmosphere and passing components through the wave so the reduction treatment liquid contacts the surfaces to be solder coated.