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:
May. 01, 1979
Filed:
Dec. 12, 1977
Applicant:
Inventors:
Hugues Baudry, Villecresnes, FR;
Marc A Monneraye, Saint-Maur, FR;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01B / ; C03C / ;
U.S. Cl.
CPC ...
252 632 ; 65 33 ; 106 396 ; 252 635 ;
Abstract
A dielectric composition which may be used as an insulating silk-screening paste and is compatible with a copper-containing conductive silk-screened layer, such as used in multilayer circuit boards. The paste includes an organic carrier, a mixture of aluminum oxide, and one or more types of glass of the 'short' type, of which at least one glass can be devitrified by dissolution of the aluminum oxide.