Patent ID: 7647832
Filing Date: 2010-01-19
Classification: B81B,G01L,G01P

Abstract:
1. A micromechanical device, comprising: a substrate material having a major substrate plane, wherein the substrate material is fastened to a carrier substrate; a first sensor pattern that includes a spring pattern and a seismic mass, wherein the seismic mass is connected to the substrate material via the spring pattern, wherein one of (a) a clearance is provided in a direction perpendicular to the major substrate plane between the spring pattern and the substrate material, and (b) the spring pattern and the seismic mass have a common, essentially continuous, front side surface; a first and second trench to allow for the substrate material to be fastened to the carrier substrate; and a second sensor pattern provided in the seismic mass, wherein the second sensor pattern has (a) a diaphragm pattern provided on the common, essentially continuous front side surface and (b) a closed cavity provided in a direction perpendicular to the major substrate plane below the diaphragm pattern, wherein the closed cavity is adjacent to the seismic mass.