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:
Dec. 30, 1986
Filed:
Aug. 07, 1985
Galeb H Maher, North Adams, MA (US);
Sprague Electric Company, North Adams, MA (US);
Abstract
A laminar electrical component has at least one ceramic dielectric layer of from 85 to 100 mole percent magnesium orthoborate (Mg.sub.3 B.sub.2 O.sub.6) which has a low dielectric constant and a high Q. A monolithic ceramic capacitor may have a predominantly magnesium orthoborate body with lithium oxide as a flux so that sintering may be as low as 850.degree. C. and in a reducing atmosphere accommodating buried copper electrodes. A predominantly Mg.sub.3 B.sub.2 O.sub.6 multi-level printed wiring substrate of low dielectric constant can include tightly adhered layers of a high dielectric constant ceramic for making buried high capacity filter capacitors, and can also include cofired base metal conductors.