Patent ID: 8820161

Claim:
A MEMS structure, comprising: a substrate having a top surface; a first fixed-electrode arrangement on the top surface of the substrate; a mobile mass extending in a plane and suspended above said substrate and said first fixed-electrode arrangement by a separation distance from said first fixed-electrode arrangement; connection elastic elements configured to support said mobile mass and allow the mobile mass to move out of said plane and modify said separation distance; a coupling mass suspended above said substrate and connected to said mobile mass via said connection elastic elements; and an anchoring arrangement configured to couple said coupling mass to said substrate, the anchoring arrangement being coupled to said substrate at a first point of constraint and in a position corresponding to said first fixed-electrode arrangement, wherein said anchoring arrangement includes a first anchoring element rigidly coupled to said substrate at the first point of constraint, and a first supporting elastic element coupling said coupling mass to said first anchoring element.