Patent ID: 7765681
Filing Date: 2010-08-03
Classification: B81B,B81C,H01G,H01H,H01P,Y10T

Abstract:
1. A fabrication method of an RF MEMS switch comprising: forming on one surface of a substrate a signal transmission line having a first signal transmission line and a second signal transmission line electrically separated from each other for transmitting a signal; and forming an on/off means for turning on/off the signal transmission line, wherein the forming the on/off means further comprises; forming a suspension layer; forming a piezoelectric capacitor disposed at the suspension layers, and actuated with a piezoelectric characteristic by receiving an external power; forming a contact electrode disposed at the suspension layers, and electrically separated from the piezoelectric capacitors; forming a connection pad electrically connected to a connection line; and forming a ground line adjacent to the signal transmission line on said one surface of the substrate, wherein the ground line is electrically connected to the signal transmission line by the connection line, wherein the connection line is extended from the one surface to another surface of the substrate through a via hole, and wherein the connection pad is formed on said another surface of the substrate.