Patent ID: 9365411
Filing Date: 2016-06-14
CPC Classification: B81B,B81C

Claim Text:
1. A MEMS device in which a MEMS portion is disposed in a space constituted by a silicon nitride film and a silicon film, wherein the silicon film has a first hole, the first hole is filled with a metal film or a metal silicide, an airtight structure is formed by the metal film or the metal silicide, the silicon nitride film, and the silicon film, wherein the MEMS portion is disposed on the silicon nitride film, and at least a first part of the silicon film is disposed above the MEMS portion and at least a second part of the silicon film is in close contact with the silicon nitride film, an entirety of the MEMS portion being disposed atop the silicon nitride film; wherein the MEMS portion having a first electrode is disposed in a space that is covered by a first silicon nitride film and a silicon film, the silicon film has a first ring-shaped hole, the silicon film that is located inside the first ring-shaped hole is electrically connected to the first electrode, and the first ring-shaped hole is filled with a second silicon nitride film.