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:
May. 10, 1977
Filed:
Jun. 14, 1976
Eugene Roman Skarvinko, Binghamton, NY (US);
William Ditlef VON Voss, Endicott, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Components, printed circuit board assemblies and the like to be interconnected by soldering are appropriately fluxed and placed in an atmosphere of a saturated vapor derived from a heat transfer liquid medium having a boiling point above the melting point of the solder. The heat transfer medium is chosen to have a solubility parameter compatible with the solubility parameter of the flux to eliminate the need for subsequent flux cleaning. An alternate embodiment includes a fatty acid in the heat transfer medium, which under some circumstances can eliminate the need to apply flux to the assembly being soldered.