Patent ID: 7851247

Claim:
A method of fabricating a micro-electromechanical system (MEMS) microphone structure, comprising: providing a substrate, defining a MEMS region and a logic region, a surface of the substrate having a first dielectric layer and a first contact plug thereon, and the first contact plug located on the substrate in the logic region; etching the first dielectric layer to form at least one meshed trench on the first dielectric layer in the MEMS region; forming a metal layer on the first dielectric layer and filling the metal layer into the meshed trench; forming a patterned mask layer on the metal layer in the logic region; and removing a part of the metal layer uncovered with the patterned mask layer and outside the meshed trench , and removing the patterned mask layer so as to simultaneously form a first metal interconnect layer on the first dielectric layer in the logic region and to form a first micro-machined metal mesh in the meshed trench of the MEMS region.