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. 15, 1994
Filed:
Oct. 12, 1993
Stephen W Jacobs, Fleetwood, PA (US);
Gregory K Arslanian, Chalfont, PA (US);
Bruce M Adams, Macungie, PA (US);
John C Ivankovits, Allentown, PA (US);
Donald J Bowe, Macungie, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
Abstract
An apparatus and method of reflow soldering electronic components, preferably to printed circuit boards, in an inert atmosphere to reduce solder defects and the need for flux or cleaning wherein the inert atmosphere is provided from a source of inert gas through several distribution lines which parallel the conveyor belt of a reflow solder furnace and supply each end of porous sintered metal diffuser tubes situated above the conveyor belt, as well as gas knives situated in baffle compartments at the inlet and outlet of the reflow solder furnace to strip barrier layers of oxygen atmosphere from the electronic components and preclude ingress of oxygen atmosphere into the reflow solder furnace.