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:
Jun. 02, 1987
Filed:
Dec. 09, 1985
Applicant:
Inventors:
James A Lucas, Raleigh, NC (US);
William P Trumble, Kanata, CA;
Assignee:
Northern Telecom Limited, Montreal, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 96 ; 427310 ; 148 23 ; 148 24 ; 29840 ; 25230116 ;
Abstract
A fluorescent solder paste mixture comprising a fluorescent pigment dispersed in a solder paste is disclosed. The solder paste comprises solder fragments dispersed in a solder flux. A method for making the solder paste mixture and a method for using the solder paste mixture to make a fluorescent solder joint between an electrical component and a circuit board are also disclosed. Use of the fluorescent solder paste mixture facilitates automatic and manual inspection of circuit boards during and after assembly.