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:
Jan. 27, 1987
Filed:
Jul. 03, 1986
Andrew J Yarne, Cedar Rapids, IA (US);
Eldon F Burr, Cedar Rapids, IA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
An improved vapor phase soldering process and apparatus are disclosed having particular application to electronic circuitry designed for operation at frequencies higher than 1 MHz. A printed circuit board having a defined circuit pattern on both sides is clamped between two parallel clamping fixtures, one having circuit matching characteristics for the specified PC board, and the fixture further having vents allowing vapor phase gas access to the PC board and soldering process waste gasses egress from the soldering area. This process and apparatus allows shortened soldering time, and improves performance characteristics of the PC board by improving the conduction characteristics of the defined circuit pattern.