Patent ID: 8772885

Claim:
A MEMS (Micro-Electro-Mechanical System) sensing device, comprising: a substrate having a first surface and a second surface opposite the first surface; a MEMS device region on the first surface of the substrate, the MEMS device region including a chamber and a multilayer structure; a mask layer covering the multilayer structure, the mask layer having at least one mask opening which exposes the chamber; a film overlaying on the mask layer to seal the at least one mask opening so that the chamber is sealed as a sealed space; an adhesive layer disposed on the film; at least one opening located on the adhesive layer whereby the adhesive layer does not form a sealed space; a cover mounted on the MEMS device region and adhered by the adhesive layer; and a plurality of leads electrically connected to the MEMS device region and extending to the second surface.