Patent ID: 9278850
Filing Date: 2016-03-08
CPC Classification: B81B,B81C,H01L

Claim Text:
1. A MEMS device, comprising: a semiconductor substrate whose main surface has a first region in which a trench is formed and a second region in which an impurity diffusion region of a semiconductor circuit element is formed; a functional element that is disposed within a volume formed by the trench of the semiconductor substrate and includes a connection electrode; a structural member that is provided in the trench of the semiconductor substrate and forms a cavity surrounding the functional element; a lid portion that includes a conductive member electrically connected to the connection electrode and covers the cavity, the conductive member being insulated from another part of the lid portion; an insulating layer that covers the main surface of the semiconductor substrate provided with the lid portion and the semiconductor circuit element; a first electrode that penetrates the insulating layer and is electrically connected to the conductive member; a second electrode that penetrates the insulating layer and is electrically connected to the semiconductor circuit element; and wiring that is provided on a surface of the insulating layer and brings the first electrode and the second electrode into electrical connection to each other.