Method for sintering electrical bushings

US8494635B2 · kind B2 · utility

Assignee

• W. C. Heraeus GmbH · DE

Inventors

• Jens Troetzschel · Bruchköbel, DE
• Goran Pavlovic · Schaafheim, DE
• Harald Manhardt · Bruchköbel, DE
• Norbert Wollenberg · Großkrotzenburg, DE
• Nicole Guebler · Friedberg, DE

Key dates

• Filing date: Feb 1, 2011
• Grant date: Jul 23, 2013
• Expiry date: Oct 7, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49117
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

One aspect relates to a method for producing an electrical bushing for an implantable device, a corresponding electrical bushing, and a corresponding implantable device. The method according to one embodiment is characterized in that a green blank is produced and sintered from an electrically insulating base body green blank made of a ceramic slurry or powder and at least one electrically conductive bushing body green blank made of a cermet material. The at least one bushing body green blank is inserted into a bushing opening of the base body green blank to form a composite green blank, a shape of the at least one bushing body green blank and a shape of the at least one bushing opening are complementary to each other at least in sections thereof and prevent slippage of the bushing body green blank through the bushing opening. The composite green blank is sintered while applying a force that keeps the bodies together.