Ceramic multi-layer component and method for the production thereof

US7525241B2 · kind B2 · utility

Assignee

• EPCOS AG · DE

Inventors

• Heinz Florian · Bad Gams, AT
• Marion Ottlinger · Wolfsberg, AT
• Peter Sedlmaier · Ruden, AT

Key dates

• Filing date: Sep 29, 2004
• Grant date: Apr 28, 2009
• Expiry date: Sep 29, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49155
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A multilayer ceramic component includes a stack containing ceramic layers and electrode layers interspersed among the ceramic layers. The electrode layers contain copper and define first and second internal electrodes. First and second external contacts are on different sides of the stack. The first and second external contacts contain copper and are substantially perpendicular to the ceramic layers and electrode layers. The first internal electrode is connected to the first external contact and the second internal electrode is connected to the second external contact. The first and second internal electrodes overlap each other at a plane intersecting the stack. In areas adjacent to boundaries between the first and second external contacts and the ceramic layers, the first and second external contacts are not oxidized and material making-up the ceramic layers is not diminished. A bonding strength of the external contacts to the stack exceeds 50N.