Patent ID: 7101724

Claim:
A method for forming a common ground for an microelectromechanical device comprising acts of: patterning a common ground plane layer on a substrate; forming a dielectric layer on the common ground plane layer; depositing a DC electrode region through the dielectric layer to contact the common ground plane layer; and depositing a conducting layer on the DC electrode region so that regions of the conducting layer contact the DC electrode region, so that the common ground plane layer provides a common ground electrical contact for the regions of the conducting layer, wherein the method for forming the common ground for the microelectromechanical device further comprising acts of depositing a sacrificial layer on the dielectric layer and the conducting layer, the sacrificial layer having a thickness; and etching a plurality of tooth regions into the sacrificial layer proximate a portion of the conducting layer, such that the tooth regions, in a final device, provide a reduced adhesion area when the device closes.