公开(公告)号：US20160373031A1

公开(公告)日：2016-12-22

申请号：US14980762

申请日：2015-12-28

Applicant: STMicroelectronics S.R.L.

Inventor： Francesco Procopio ,  Attilio Frangi

IPC: H02N2/18 ,  H01L41/113

CPC classification number: H02N2/186 ,  H01L41/1136 ,  H02N2/181

Abstract: A piezoelectric transducer includes: an anchorage; a beam of semiconductor material, extending in cantilever fashion from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis; and a piezoelectric layer on the face of the beam. A cross-section of the beam perpendicular to the first axis is asymmetrical and is shaped so that the beam presents deformations out of the first plane in response to forces applied to the anchorage and oriented according to the first axis.

Abstract translation: 压电换能器包括：锚固件; 一半导体材料束，从平行于第一轴的主方向上的锚固件以悬臂的方式延伸，并且具有平行于由第一轴线限定的第一平面和垂直于第一轴线的第二轴线的面; 和在光束表面上的压电层。 垂直于第一轴线的梁的横截面是不对称的并且被成形为使得梁响应于施加到锚固件的力并根据第一轴线而定向而将变形从第一平面出来。

公开(公告)号：US09316550B2

公开(公告)日：2016-04-19

申请号：US13957065

申请日：2013-08-01

Applicant: STMicroelectronics S.r.l.

Inventor： Attilio Frangi ,  Biagio De Masi ,  Leonardo Baldasarre

IPC: G01L5/00 ,  G01P15/04 ,  G01P15/06 ,  G01P15/12 ,  G01P15/125 ,  G01P15/135 ,  G01P15/18 ,  H01H35/14 ,  H01H1/00

CPC classification number: G01L5/0052 ,  G01P15/04 ,  G01P15/06 ,  G01P15/12 ,  G01P15/125 ,  G01P15/135 ,  G01P15/18 ,  H01H1/0036 ,  H01H35/14 ,  H01H35/146 ,  H01H2001/0068 ,  H01H2001/0078

Abstract: A shock sensor includes: a supporting body; a bistable mechanism, configured to switch from a first stable mechanical configuration to a second stable mechanical configuration in response to an impact force applied along a detection axis and such as to supply to the bistable mechanism an amount of energy higher than a transition energy; and a detection device, coupled to the bistable mechanism and having a first state, when the bistable mechanism is in an initial stable mechanical configuration and a second state, after the bistable mechanism has made a transition from the initial stable mechanical configuration to a final stable mechanical configuration. The bistable mechanism includes at least one elastic element, constrained to the supporting body in at least two opposite peripheral regions and defining a first concavity in the first stable mechanical configuration and a second concavity, opposite to the first concavity, in the second stable mechanical configuration.

Abstract translation: 冲击传感器包括：支撑体; 双稳态机构，被配置为响应于沿着检测轴施加的冲击力从第一稳定机械构造切换到第二稳定机械构造，并且向双稳态机构提供高于过渡能量的能量; 以及耦合到双稳态机构并具有第一状态的检测装置，当双稳态机构处于初始稳定的机械构造和第二状态时，在双稳态机构已经从初始稳定的机械构造转变到最终稳定之后 机械配置。 双稳态机构包括至少一个弹性元件，其在至少两个相对的周边区域中被限制到支撑体，并且在第二稳定机械构造中限定第一稳定机械构造中的第一凹部和与第一凹部相对的第二凹部 。

公开(公告)号：US20140033964A1

公开(公告)日：2014-02-06

申请号：US13957065

申请日：2013-08-01

Applicant: STMicroelectronics S.r.l.

Inventor： Attilio Frangi ,  Biagio De Masi ,  Leonardo Baldasarre

IPC: G01L5/00

CPC classification number: G01L5/0052 ,  G01P15/04 ,  G01P15/06 ,  G01P15/12 ,  G01P15/125 ,  G01P15/135 ,  G01P15/18 ,  H01H1/0036 ,  H01H35/14 ,  H01H35/146 ,  H01H2001/0068 ,  H01H2001/0078

Abstract: A shock sensor includes: a supporting body; a bistable mechanism, configured to switch from a first stable mechanical configuration to a second stable mechanical configuration in response to an impact force applied along a detection axis and such as to supply to the bistable mechanism an amount of energy higher than a transition energy; and a detection device, coupled to the bistable mechanism and having a first state, when the bistable mechanism is in an initial stable mechanical configuration and a second state, after the bistable mechanism has made a transition from the initial stable mechanical configuration to a final stable mechanical configuration. The bistable mechanism includes at least one elastic element, constrained to the supporting body in at least two opposite peripheral regions and defining a first concavity in the first stable mechanical configuration and a second concavity, opposite to the first concavity, in the second stable mechanical configuration.

Abstract translation: 冲击传感器包括：支撑体; 双稳态机构，被配置为响应于沿着检测轴施加的冲击力从第一稳定机械构造切换到第二稳定机械构造，并且向双稳态机构提供高于过渡能量的能量; 以及耦合到双稳态机构并具有第一状态的检测装置，当双稳态机构处于初始稳定的机械构造和第二状态时，在双稳态机构已经从初始稳定的机械构造转变到最终稳定之后 机械配置。 双稳态机构包括至少一个弹性元件，其在至少两个相对的周边区域中被限制到支撑体，并且在第二稳定机械构造中限定第一稳定机械构造中的第一凹部和与第一凹部相对的第二凹部 。

公开(公告)号：US11183953B2

公开(公告)日：2021-11-23

申请号：US16152076

申请日：2018-10-04

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Procopio ,  Attilio Frangi

IPC: H02N2/18 ,  H01L41/113

Abstract: A piezoelectric transducer includes an anchorage and a beam of semiconductor material extending in cantilever fashion from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis. A piezoelectric layer is on the face of the beam. A cross-section of the beam is perpendicular to the first axis and is asymmetrical and shaped so the beam deformations out of the first plane in response to forces applied to the anchorage and oriented parallel to the first axis.

公开(公告)号：US20190044458A1

公开(公告)日：2019-02-07

申请号：US16152076

申请日：2018-10-04

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Procopio ,  Attilio Frangi

IPC: H02N2/18 ,  H01L41/113

Abstract: A piezoelectric transducer includes an anchorage and a beam of semiconductor material extending in cantilever fashion from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis. A piezoelectric layer is on the face of the beam. A cross-section of the beam is perpendicular to the first axis and is asymmetrical and shaped so the beam deformations out of the first plane in response to forces applied to the anchorage and oriented parallel to the first axis.

公开(公告)号：US10135365B2

公开(公告)日：2018-11-20

申请号：US14980762

申请日：2015-12-28

Applicant: STMicroelectronics S.R.L.

Inventor： Francesco Procopio ,  Attilio Frangi

IPC: H02N2/18 ,  H01L41/113

Abstract: A piezoelectric transducer includes: an anchorage; a beam of semiconductor material, extending in cantilever fashion from the anchorage in a main direction parallel to a first axis and having a face parallel to a first plane defined by the first axis and by a second axis perpendicular to the first axis; and a piezoelectric layer on the face of the beam. A cross-section of the beam perpendicular to the first axis is asymmetrical and is shaped so that the beam presents deformations out of the first plane in response to forces applied to the anchorage and oriented according to the first axis.