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.

Date of Patent:
Jun. 29, 1993

Filed:

Mar. 28, 1991
Applicant:
Inventors:

Sergio Moretti, Rome, IT;

Ugo Fracassi, Rome, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; H01L / ;
U.S. Cl.
CPC ...
228230 ; 228242 ;
Abstract

An apparatus for applying a soldering alloy to an element to be soldered including an open-channeled member having a receiving region for holding the element, a vacuum system connected to the member for creating a negative pressure through the open channel and at the receiving region sufficient to retain the element against the receiving region, a heating coil connected to the member for conducting heat to the element at a soldering temperature, and a gas distribution and heating system for providing heated gas to a soldering alloy at a temperature sufficient to melt and provide at least one soldering connection on the heated element. The invention also comprises a method for providing heat to an element to be soldered substantially by conduction and heat to a soldering alloy substantially by convection employing a heated gas all at temperatures sufficient to provide a soldered connection without damaging the element being soldered.


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