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:
Sep. 06, 1983
Filed:
Dec. 15, 1980
Applicant:
Inventor:
Norman E Hoffman, Harrisburg, PA (US);
Assignee:
AMP Incorporated, Harrisburg, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; B32B / ; B05D / ; B32B / ;
U.S. Cl.
CPC ...
174 685 ; 29849 ; 156250 ; 427 96 ; 427276 ; 428158 ; 4283133 ; 4283191 ; 428901 ;
Abstract
A circuit board is fabricated comprising a metal layer laminated to an underlying dielectric substrate. Portions of the metal layer are separated and recessed into stable indented portions of the substrate by a stamping die, roller, or the like. The substrate is composed of a cellular material, for example, polysulfone impregnated with hollow glass spheres, whereby the indented portions of the substrate are compacted by impression of the die profile to receive separated portions of the metal layer therein.