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:
Jul. 03, 1984
Filed:
May. 24, 1983
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 431 ; 2041 / ; 427 99 ; 427124 ; 4271264 ; 427256 ; 427265 ;
Abstract
A wiring circuit board with a fine wiring pattern free from disconnection and poor insulation is produced by forming an insulating layer consisting of at least two insulating substances having different dissociation energies for metalization, including metal elements, on a substrate and irradiating the insulating layer with an energizing beam by scanning, thereby forming a wiring pattern as desired.