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:
Feb. 09, 1982
Filed:
Jul. 14, 1978
Donald J Spigarelli, Carlisle, MA (US);
Hybrid Technology Corporation, Concord, MA (US);
Abstract
The method of solder leveling comprising maintaining a zone of hot saturated inert vapor at substantially the temperature of molten solder above a molten bath of solder, moving the part to be treated through the vapor at a rate such that it will become uniformly heated to substantially the temperature of the molten solder prior to immersion therein, immersing the part in the molten solder, withdrawing the part from the molten solder through the saturated vapor to the ambient atmosphere and, while withdrawing the part, projecting streams of hot, high density fluid on the surfaces of the part in directions opposite to the direction of withdrawal to sweep the surfaces of the excess solder.