Patent ID: 9499394
Filing Date: 2016-11-22
CPC Classification: B81B

Claim Text:
1. A MEMS device, comprising: a substrate; a functional element that is provided, either directly or via a first insulating film, on a surface of the substrate, and includes a connection electrode; a structural member that is provided on the surface of the substrate or on a surface of the first insulating film, and forms a cavity surrounding the functional element; a second insulating film that is provided so as to surround a predetermined region on a first surface of the connection electrode; a first lid portion that includes (1) a third insulating film covering the second insulating film at the first surface of the connection electrode, and (2) a conductive material film, the first lid portion being provided with an opening, and covering a part of the cavity, wherein a width of the opening of the first lid portion is wider at the third insulating film than at the conductive material film; a second lid portion that is provided on a surface of the first lid portion and includes a first conductive member and a sealing portion, the first conductive member being electrically connected to the predetermined region of the connection electrode, and the sealing portion sealing the opening of the first lid portion; a fourth insulating film that is provided on a surface of the second lid portion, is in contact with the second insulating film or the third insulating film, and insulates the first conductive member from the sealing portion; and a second conductive member that penetrates the fourth insulating film and is electrically connected to the first conductive member.