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:
Oct. 11, 1983
Filed:
Dec. 04, 1981
Applicant:
Inventors:
Soitiro Tosima, Machida, JP;
Shigeo Harada, Isehara, JP;
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
436-2 ; 436164 ; 228104 ;
Abstract
A test procedure is disclosed for evaluating the solderability properties of molten solder. In the method of this invention, a testpiece is provided which has a transparent support with a film of metal such as copper deposited on one surface of the transparent support. The surface having the metal film is immersed in the molten solder and the time required for alloying to occur and be observed through the transparent support is measured to determine rate of alloying and, thereby, the solderability properties of the molten solder under evaluation.