公开(公告)号：US20160121607A1

公开(公告)日：2016-05-05

申请号：US14531830

申请日：2014-11-03

Applicant: STMicroelectronics S.r.l.

Inventor： Dino FARALLI ,  Laura Maria CASTOLDI ,  Paolo FERRARI ,  Marta CARMINATI

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14129 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1623 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1643

Abstract: Embodiments disclose herein are directed to a microfluidic delivery device that has a predominantly semiconductor structure, such as silicon. In particular, the structure for delivering fluid may be formed from polycrystalline silicon, also called polysilicon, or epitaxial silicon. The microfluidic delivery device that predominantly uses silicon based materials to form the structures that are in contact with the dispensed fluid results in a device that is compatible with a wide set of fluids and applications.

Abstract translation: 本文公开的实施方案涉及具有主要半导体结构（例如硅）的微流体递送装置。 特别地，用于输送流体的结构可以由也称为多晶硅的多晶硅或外延硅形成。 主要使用硅基材料以形成与分配的流体接触的结构的微流体递送装置导致与广泛流体和应用相容的装置。

公开(公告)号：US20190115524A1

公开(公告)日：2019-04-18

申请号：US16215821

申请日：2018-12-11

Applicant: STMicroelectronics S.r.l.

Inventor： Maria Fortuna BEVILACQUA ,  Flavio Francesco VILLA ,  Rossana SCALDAFERRI ,  Valeria CASUSCELLI ,  Andrea DI MATTEO ,  Dino FARALLI

IPC: H01L41/113 ,  H02N2/18 ,  H01L41/22 ,  H01L41/047 ,  H01L41/053 ,  H01L41/29 ,  H01L41/25 ,  H01L41/187 ,  H01L41/332

Abstract: A MEMS piezoelectric device includes a monolithic semiconductor body having first and second main surfaces extending parallel to a horizontal plane formed by first and second horizontal axes. A housing cavity is arranged within the monolithic semiconductor body. A membrane is suspended above the housing cavity at the first main surface. A piezoelectric material layer is arranged above a first surface of the membrane with a proof mass coupled to a second surface, opposite to the first surface, along the vertical axis. An electrode arrangement is provided in contact with the piezoelectric material layer. The proof mass causes deformation of the piezoelectric material layer in response to environmental mechanical vibrations. The proof mass is coupled to the membrane by a connection element arranged, in a central position, between the membrane and the proof mass in the direction of the vertical axis.

公开(公告)号：US20220246832A1

公开(公告)日：2022-08-04

申请号：US17722713

申请日：2022-04-18

Applicant: STMicroelectronics S.r.l.

Inventor： Maria Fortuna BEVILACQUA ,  Flavio Francesco VILLA ,  Rossana SCALDAFERRI ,  Valeria CASUSCELLI ,  Andrea DI MATTEO ,  Dino FARALLI

IPC: H01L41/113 ,  H01L41/047 ,  H01L41/22 ,  H02N2/18 ,  H01L41/053 ,  H01L41/187 ,  H01L41/25 ,  H01L41/29 ,  H01L41/332

Abstract: A MEMS piezoelectric device includes a monolithic semiconductor body having first and second main surfaces extending parallel to a horizontal plane formed by first and second horizontal axes. A housing cavity is arranged within the monolithic semiconductor body. A membrane is suspended above the housing cavity at the first main surface. A piezoelectric material layer is arranged above a first surface of the membrane with a proof mass coupled to a second surface, opposite to the first surface, along the vertical axis. An electrode arrangement is provided in contact with the piezoelectric material layer. The proof mass causes deformation of the piezoelectric material layer in response to environmental mechanical vibrations. The proof mass is coupled to the membrane by a connection element arranged, in a central position, between the membrane and the proof mass in the direction of the vertical axis.