Sensor element for detecting at least one property of a measured gas in a measured gas chamber, and method for manufacturing the same

US10215726B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Alexander Bischoff · Eberdingen, DE
• Andreas Rottmann · Baunach, DE
• Antje Taeuber · Hirschaid, DE
• Frank Buse · Stuttgart, DE
• Jens Schneider · Anderson, US
• Oliver Dotterweich · Hallstadt, DE
• Peter Alt · Ellwangen (Jagst), DE
• Thomas Juestel · Aachen, DE

Key dates

• Filing date: Feb 20, 2015
• Grant date: Feb 26, 2019
• Expiry date: Oct 28, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K3/4061
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A sensor element for detecting a level of a gas component in the measured gas or a temperature of the measured gas. The sensor element includes at least one solid electrolyte layer. The solid electrolyte layer has at least one plated-through hole. The sensor element further includes a conductive element, which produces an electrically conductive connection through the plated-through hole. In the plated-through hole, the solid electrolyte layer is electrically insulated from the conductive element by an insulating element. At least one opening region of the plated-through hole is stabilized against phase transition by a stabilizing element. The stabilizing element is made at least partially of a material, which includes a noble metal and an element selected from the group consisting of: V, Nb, Ta, Sb, Bi, Cr, Mo, W. A method for manufacturing the sensor element is also provided.