Patent ID: 8671756

Claim:
A microelectromechanical detection structure for a MEMS resonant biaxial accelerometer, comprising: a substrate; an inertial mass having a plane of main extension; first and second elastic elements configured to anchor the inertial mass to the substrate, suspend the inertial mass above said substrate, and enable inertial movements of detection of said inertial mass along associated first and second detection axes, respectively, in response to respective linear external accelerations; a first resonant element having a longitudinal extension along said first detection axis and mechanically coupled to said inertial mass through said first elastic element, the first resonant element being configured to undergo an associated first axial stress when said inertial mass moves along said first detection axis; and a second resonant element having a longitudinal extension along said second detection axis and mechanically coupled to said inertial mass through said second elastic element, the second resonant element being configured to undergo an associated second axial stress when said inertial mass moves along said second detection axis.