Patent ID: 6511894
Filing Date: 2003-01-28
Classification: B81B,H01H

Abstract:
A MEMS relay which comprise a first wafer, a second wafer, and a third wafer that are sequentially stacked, wherein the first wafer comprises:driving electrodes positioned at the bottom surface of the first wafer; input signal electrodes and output signal electrodes formed adjacent to each other and corresponding to the driving electrodes; via holes formed through the first wafer on the driving electrodes, the input signal electrodes, and the output signal electrodes; and metal pads formed over the via holes, and the second wafer comprises: a body including a sealing unit used to hermetically seal the first and third wafers with the second wafer interposed therebetween; a driving unit which is formed inside and isolated from the body, is an integrated body consisting of a silicon substrate, a passivation layer formed on the silicon substrate, and contact electrodes formed on the passivation layer, and is located lower than the top surface of the body by a predetermined distance; and a connection supporter which extends from two opposing sides of the driving unit to the corresponding inner surface of the body; and the third wafer comprises a hollow in which the driving unit can be rotated.