Patent ID: 9274153
Filing Date: 2016-03-01
CPC Classification: B81B,G01P,G01R

Claim Text:
1. An electrostatic capacitance sensor, including: a substrate having a movable body; a first fixing plate; a second fixing plate; a fixed electrode disposed on the first fixing plate and arranged opposite to the movable body at an interval, wherein the first fixing plate is joined to one surface of the substrate, and the second fixing plate is joined to the other surface of the substrate, wherein a metal film is disposed on a portion of an inner surface of the first fixing plate, the portion being other than a portion on which the fixed electrode is disposed, the metal film being electrically insulated from the fixed electrode, wherein the movable body has a protruding portion facing the first fixing plate, and wherein the metal film is not located above the movable body when viewed in plan.