Patent ID: 8729660

Claim:
A MEMS integrated chip with cross-area interconnection, comprising: a substrate; a MEMS device area on the substrate; a microelectronic device area on the substrate; a guard ring separating the MEMS device area and the microelectronic device area at two sides of the guard ring; and a silicide layer below the guard ring and on the substrate, the silicide layer extending to two sides of the guard ring; a first contact layer in the MEMS device area, which is electrically connected with the silicide layer; a structural layer between the first contact layer and the, substrate, for providing electrical isolation between the contact layer and the substrate; and an interconnection in the microelectronic device area, which is electrically connected with the silicide layer, the interconnection including a second contact layer and a metal layer, wherein the second contact layer is below and electrically connected with the metal layer.