Patent ID: 8631701
Filing Date: 2014-01-21
Classification: B81B,G01C,G01P,H01L

Abstract:
1. A sensor device comprising: a semiconductor substrate; a first electrode disposed on an active surface side of the semiconductor substrate; an external connecting terminal disposed on the active surface side and electrically connected to the first electrode; at least one stress relaxation layer disposed between the semiconductor substrate and the external connecting terminal; a connecting terminal disposed on the active surface side of the semiconductor substrate; and a sensor element including a base section, a vibrating section and a connection section extending from the base section, and a mass adjustment section provided to the vibrating section, wherein the sensor element is held by the semiconductor substrate due to connection between the connection section and the external connecting terminal, and a meltage protection layer formed in an area where the stress relaxation layer and the mass adjustment section overlap each other in a plan view is provided.