Abstract:
A micromechanical system with a system that can vibrate, has a seismic mass and at least two spring elements. The spring elements are respectively fastened on one side externally to the seismic mass and on the other side to fixed anchor points of the micromechanical system such that the seismic mass can vibrate in a movement direction. In order to obtain a particularly large frequency spacing between the useful mode and further vibration modes of the system, at least one further spring element is provided in the inner region of the seismic mass. The further spring element the is fastened to a further anchor point of the micromechanical system. A method builds a micromechanical system with a system that can vibrate.
Abstract:
PROBLEM TO BE SOLVED: To provide a micromachine device of a micromachine adapted to reduce noise in an output signal by suppressing vibrations of the micromachine. SOLUTION: The micromachine device 1 includes: a substrate 11; the micromachine 16 that is mounted on the substrate 11 and has a mechanism deformed by the action of an electric field and changes electrical characteristics according to the deformation; an inner inorganic sealing film 21 that contains an inorganic material and is disposed on a main surface of the substrate 11 and covers the micromachine 16 through a hollow section 17 storing gas and has an aperture-shaped section 21a to permit communication between the hollow section 17 and the exterior; an organic sealing film 22 that contains an organic material and is formed on the inner inorganic sealing film 21 and closes the aperture-shaped section 21a; and an outer inorganic sealing film 23 that contains an inorganic material having lower moisture permeability than the organic material and is formed on the organic sealing film 22 and covers the organic sealing film 22. COPYRIGHT: (C)2010,JPO&INPIT