Gas sensor and corresponding production method

US6395161B1 · kind B1 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Jens Schneider · Anderson, US
• Harald Neumann · Lambach, DE
• Johann Riegel · Bietigheim-Bissingen, DE
• Frank Stanglmeier · Heubach, DE
• Bernd Schumann · Rutesheim, DE

Key dates

• Filing date: Mar 23, 2000
• Grant date: May 28, 2002
• Expiry date: Mar 23, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N27/4077
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A gas sensor and a method for its manufacture are described. The gas sensor has a solid electrolyte having at least one measuring electrode and one porous protective coating. The measuring electrode has an electrically conductive base layer and a further layer, the further layer god being deposited in the pores of the porous protective coating adjacent to the base layer via galvanic deposition. In order to deposit the further layer via galvanic deposition, the basic body, which has been fused with the base layer and the protective coating via vitrification, is immersed in a galvanizing bath, the base layer being connected as the cathode.