公开(公告)号：EP1676809B1

公开(公告)日：2010-08-25

申请号：EP05257824.2

申请日：2005-12-19

Applicant: STMicroelectronics, Inc.

Inventor： McAlexander III, Joseph Colby

IPC: B81B3/00

CPC classification number: H01H35/14 ,  B81B2201/0235 ,  B81B2203/0118 ,  B81C1/0015 ,  G01P15/0802 ,  G01P15/0891 ,  G01P15/125 ,  G01P15/135 ,  G01P2015/0828 ,  H01H1/0036

公开(公告)号：EP1676809A1

公开(公告)日：2006-07-05

申请号：EP05257824.2

申请日：2005-12-19

Applicant: STMicroelectronics, Inc.

Inventor： McAlexander III, Joseph Colby

IPC: B81B3/00

CPC classification number: H01H35/14 ,  B81B2201/0235 ,  B81B2203/0118 ,  B81C1/0015 ,  G01P15/0802 ,  G01P15/0891 ,  G01P15/125 ,  G01P15/135 ,  G01P2015/0828 ,  H01H1/0036

Abstract: A released-beam sensor includes a semiconductor substrate having a layer formed thereon, and an aperture formed in the layer. A beam is mechanically coupled at a first end to the layer and suspended above the layer such that a second end forms a cantilever above the aperture. A boss is coupled to a second end of the beam and suspended at least partially within the aperture. The beam is configured to flex in response to acceleration of the substrate along a vector substantially perpendicular to a surface of the substrate. Parameters of the sensor, such as the dimensions of the beam, the mass of the boss, and the distance between the boss and a contact surface within the aperture, are selected to establish an acceleration threshold at which the boss will make contact with the contact surface. The sensor may be employed to deploy an airbag in a vehicle.

Abstract translation: 释放光束传感器包括其上形成有层的半导体衬底和形成在该层中的孔。 梁在第一端机械耦合到层并且悬挂在层上方，使得第二端在孔上方形成悬臂。 凸台联接到梁的第二端并且至少部分地悬挂在孔内。 梁被配置为响应于沿着基本上垂直于衬底的表面的矢量的衬底的加速度而弯曲。 选择传感器的参数，例如梁的尺寸，凸台的质量以及凸台和孔内的接触表面之间的距离，以建立凸台将与触点接触的加速度阈值 表面。 可以使用传感器将气囊展开在车辆中。