Process for the manufacture of a force sensor

US5349746A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Werner Gruenwald · Gerlingen, DE
• Kurt Schmid · Ditzingen, DE
• Martin Mast · Gerlingen, DE

Key dates

• Filing date: Nov 30, 1992
• Grant date: Sep 27, 1994
• Expiry date: Nov 30, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49103
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A process and a device are proposed for manufacturing sensors, particularly those intended for the determination of pressure forces. In thick-film technology, initially at least one insulating layer (14) is produced on a pressure support (10), whereupon a pressure-sensitive resistance layer (12) and finally conductor paths (13) are applied. In a pressing tool (20-22), the layer arrangement (11-14) is then compressed together with a plastic pressure substance (15). Finally, the pressure support (10) is removed from the pressed article.