公开(公告)号：US10315196B2

公开(公告)日：2019-06-11

申请号：US16019361

申请日：2018-06-26

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Ubaldo Mastromatteo ,  Gabriele Barlocchi ,  Flavio Francesco Villa

IPC: G01N29/02 ,  B01L3/00 ,  G01N5/02 ,  G01N33/543 ,  G01N33/76 ,  G01N35/00

Abstract: A device for detecting the concentration of biological materials is formed in a body having a plurality of fluidic paths connectable to a multi-microbalance structure carrying a plurality of microbalances, each microbalance having a sensitive portion facing a reaction chamber. The body and the multi-microbalance structure are configured to be mechanically coupled together and each microbalance is configured to be coupled to a respective fluidic path. Each fluidic path includes an inlet, a duct and a liquid waste, each duct being configured to be coupled with a respective reaction chamber. The plurality of fluidic paths and microbalances form at least one first and one second reference cells and one first sample cell.

公开(公告)号：US10186654B2

公开(公告)日：2019-01-22

申请号：US15163230

申请日：2016-05-24

Applicant: STMicroelectronics S.r.l.

Inventor： Maria Fortuna Bevilacqua ,  Flavio Francesco Villa ,  Rossana Scaldaferri ,  Valeria Casuscelli ,  Andrea Di Matteo ,  Dino Faralli

IPC: H01L41/09 ,  H01L41/053 ,  H01L41/22 ,  H01L41/113 ,  H01L41/047 ,  H02N2/18 ,  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.

公开(公告)号：US10150666B2

公开(公告)日：2018-12-11

申请号：US15602760

申请日：2017-05-23

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Lorenzo Baldo ,  Enri Duqi ,  Flavio Francesco Villa

IPC: B81B3/00 ,  B81B7/00 ,  B81C1/00 ,  G02B26/08

Abstract: A micro-electro-mechanical device formed in a monolithic body of semiconductor material accommodating a first buried cavity; a sensitive region above the first buried cavity; and a second buried cavity extending in the sensitive region. A decoupling trench extends from a first face of the monolithic body as far as the first buried cavity and laterally surrounds the second buried cavity. The decoupling trench separates the sensitive region from a peripheral portion of the monolithic body.

公开(公告)号：US20170186940A1

公开(公告)日：2017-06-29

申请号：US15163230

申请日：2016-05-24

Applicant: STMicroelectronics S.r.l.

Inventor： Maria Fortuna Bevilacqua ,  Flavio Francesco Villa ,  Rossana Scaldaferri ,  Valeria Casuscelli ,  Andrea Di Matteo ,  Dino Faralli

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

CPC classification number: H01L41/1138 ,  H01L41/047 ,  H01L41/053 ,  H01L41/1134 ,  H01L41/1876 ,  H01L41/22 ,  H01L41/25 ,  H01L41/29 ,  H01L41/332 ,  H02N2/186

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.