Patent ID: 11866323
Assignee: ROBERT BOSCH GMBH
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A method for manufacturing at least one membrane system for a micromechanical sensor for calorimetric detection of gases, the method comprising the following steps:
providing a wafer-shaped substrate;
introducing at least one reference volume from a front side into the wafer-shaped substrate using a surface or volume micromechanical process while forming a reference membrane covering the reference volume at least in some areas;
introducing at least one measuring volume adjacent to the at least one reference volume, into the wafer-shaped substrate from a back side or the front side of the wafer-shaped substrate while forming a measuring membrane; and
applying a wafer-shaped cap substrate onto the front side of the wafer-shaped substrate.