Patent ID: 7568390
Filing Date: 2009-08-04
Classification: G01P,H01L

Abstract:
1. A semiconductor acceleration sensor device comprising: an acceleration sensor chip including: a weight part, a support part which flexibly supports the weight part, one end of the support part being connected to the weight part, a pedestal part surrounding the weight part, an opposite end of the support part being connected to the pedestal part, a stress detecting element which detects a stress from deformation caused in the support part due to an acceleration, the stress detecting element being attached to or buried in the support part; an elastic first resin part to coat and to entirely cover the weight part and the support part; a second resin pan to encapsulate the first resin pan and the acceleration sensor chip; and a die pad which has a first area and a second area, and which also has an upper surface and a lower surface with the second area surrounding the first area and the pedestal part of the acceleration sensor chip being mounted on the second area.