Capacitor and method of making same

US8867191B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Martin Letz · Mainz, DE
• Hans-Heinrich Gundelach · Delligsen, DE
• Holger Wegener · Alfeld, DE

Key dates

• Filing date: Aug 9, 2011
• Grant date: Oct 21, 2014
• Expiry date: Mar 18, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T156/1031
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A capacitor having a dielectric consisting of a glass layer with an alkali metal oxide content of at most 2 wt % and a thickness of at most 50 μm is provided. The capacitor includes at least two metal layers which are separated by the glass layer. The glass layer is preferably produced by a down-draw method or by an overflow down-draw fusion method.