Patent ID: 8476995
Filing Date: 2013-07-02
Classification: H01H

Abstract:
1. An RF MEMS switch device comprising: a substrate; a bias electrode positioned on the substrate and supplying bias voltage; a pair of signal electrodes positioned to be spaced-apart each other on the substrate and transmitting an RF signal from one side to the other side; a dielectric layer formed on upper part of the pair of signal electrodes to be overlapped with the pair of signal electrodes; a membrane electrode formed on the dielectric layer to be overlapped with the pair of signal electrodes and the dielectric layer; a bias line positioned on the substrate, being formed of a first high resistance conductive material, and connecting the membrane electrode with the bias electrode; at least one pooling electrode formed to be overlapped with the membrane electrode and having the dielectric layer be interposed therebetween; and a pooling line positioned on the substrate, being formed of a second high resistance conductive material, and connecting any one of the pair of signal electrodes with the pooling electrodes; wherein the pair of signal electrodes and the pooling electrode make the membrane electrode bend by using at least one of differences in electric potential between the pair of signal electrodes and the membrane electrode and between the pooling electrode and the membrane electrode.