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. 14, 1981
Filed:
Feb. 28, 1980
Applicant:
Inventor:
William P Dugan, Pomona, CA (US);
Assignee:
General Dynamics, Pomona Division, Pomona, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 15 ; 204 24 ; 204 / ;
Abstract
Method for producing fine line circuit boards utilizing both sides thereof, with through-hole plating wherein the board is drilled and conductive metal clad, the surface is passivated and the holes and the surfaces are electroplated to a desired thickness. Thereafter the surface electroplate is peeled off the board, leaving the plating in the holes. Subsequently the board is masked in a desired pattern, etched to remove the cladding and form a circuit, and then the mask is removed and solder is applied to the plated holes.