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:
Feb. 11, 1997
Filed:
Jun. 29, 1994
Applicant:
Inventors:
Nobuyuki Asahi, Kadoma, JP;
Jun Tatsuta, Kadoma, JP;
Assignee:
Matsushita Electric Works, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
21912166 ; 21912185 ; 21912184 ; 21912183 ; 437174 ; 427554 ;
Abstract
A surface treating process with respect to conductor parts on printed circuit board irradiates an energy beam onto the surface of the conductor parts each in a plurality of layers of different, single metal material, with the intensity, dosage and the like optimumly set and under such irradiating conditions that the respective metal material of the conductor parts do not form any mutual alloy, and the surface of the conductor parts on the printed circuit board can be thereby excellently treated as desired.