Electrical cermet feedthrough with one-piece feedthrough element having plural regions

US10286219B2 · kind B2 · utility

Assignee

• HERAEUS DEUTSCHLAND GMBH & CO. KG · DE

Inventors

• Ilias Nikolaidis · Frankfurt am Main, DE
• Frederik Roth · Könnern, DE
• Ulrich Hausch · Frankfurt, DE
• Robert Dittmer · Hanau, DE
• Jacqueline Gebhardt · Schwaikheim, DE
• Sandra Sauer · Großostheim, DE

Key dates

• Filing date: Aug 17, 2017
• Grant date: May 14, 2019
• Expiry date: Aug 17, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K5/0247
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

One aspect relates to an apparatus includes a ceramic body including a first surface and a further surface. The first surface is opposite the further surface, the first surface includes a first opening. The further surface includes a further opening. The first opening and the further opening are connected by a tunnel, which at least partly includes a tunnel filling and is occluded by the tunnel filling. The tunnel filling includes a first constituent, including a cermet, and a second constituent. The first and second constituents are electroconductingly connected to one another. The first constituent has a first electrical conductivity and the second constituent has a second electrical conductivity, which differs from the first by at least 5·10−4 Siemens per meter (S/m). The ceramic body is characterized by a further electrical conductivity. The first electrical conductivity is more by at least 1·105 Siemens per meter (S/m) than the 15 further electrical conductivity.