Patent ID: 9230907
Filing Date: 2016-01-05
CPC Classification: H01G,H01L

Claim Text:
1. An integrated circuit comprising: a substrate; an interconnection region overlying the substrate, the interconnect region comprising a plurality of metallization levels separated by an insulating region; and a switchable capacitive device having an adjustable capacitive value disposed within the interconnection region, the switchable capacitive device comprising a switchable capacitive cell having a main capacitor and a metal system disposed, at least in part, in a cavity within the interconnect region, the metal system electrically connected to the main capacitor, the metal system having first and second metal elements that are mobile relative to one another within the cavity and being switchable between a first configuration in which the first and second elements are mutually spaced out in such a manner as to form an auxiliary capacitor electrically connected to the main capacitor and to give a first capacitive value to the capacitive cell, and a second configuration in which the first and second metal elements are in mutual contact in such a manner as to give a second capacitive value to the capacitive cell.