Patent ID: 7031137
Filing Date: 2006-04-18
Classification: H01G

Abstract:
1. A MEMS micro-capacitor of variable capacity of variable air gap type, comprising: at least one fixed electrode positioned on one surface of a substrate; at least one deformable electrode positioned opposite the fixed electrode; means forming a solid dielectric layer placed between the at least one fixed electrode and the at least one deformable electrode; sagging means with respect to said substrate surface, comprising said at least one deformable electrode and designed to clasp the means forming a dielectric layer between the at least one deformable electrode and the at least one fixed electrode so as to obtain a surface of clasped means forming a dielectric layer; means for applying a sagging force to said sagging means, intended to move the at least one deformable electrode with respect to the at least one fixed electrode to obtain between these electrodes a variable capacity depending on the applied sagging force, wherein the means for applying a sagging force comprises first means to obtain a surface of clasped means forming a dielectric layer corresponding to a first capacity value and second means to obtain a surface of clasped means forming a dielectric layer corresponding to a second capacity value.