Patent ID: 8354900

Claim:
A microelectromechanical device comprising: a first structural element; a second structural element rotatably coupled to said first structural element; an elastic supporting structure extending between said first and second structural elements and configured to enable a rotational movement of said second structural element with respect to the first structural element; and an anti-stiction structure including at least one flexible element fixed to only the first structural element and, in a rest condition thereof, arranged at a first distance from the second structural element, said anti-stiction structure being configured to generate a repulsive force between the first and the second structural elements in the case of a relative movement of an amount greater than said first distance, wherein: the first structural element comprises a mobile mass, and the second structural element comprises a load-bearing structure, or vice versa; said load-bearing structure comprises a substrate, said movable mass being suspended above a surface of said substrate and being rotatably movable with respect to said surface, said flexible element having an elongated shape with a first end fixed to said movable mass and a second end provided with a protruding portion facing and arranged at said first distance from said surface; and said mobile mass has a trench facing a side of the mobile mass and said flexible element extends within said trench.