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公开(公告)号：US12134556B2
公开(公告)日：2024-11-05
申请号：US17534286
申请日：2021-11-23
Inventor： Enri Duqi , Lorenzo Baldo , Paolo Ferrari , Benedetto Vigna , Flavio Francesco Villa , Laura Maria Castoldi , Ilaria Gelmi
IPC: B81B7/00
Abstract: A semiconductor device includes: a substrate; a transduction microstructure integrated in the substrate; a cap joined to the substrate and having a first face adjacent to the substrate and a second, outer, face; and a channel extending through the cap from the second face to the first face and communicating with the transduction microstructure. A protective membrane made of porous polycrystalline silicon permeable to aeriform substances is set across the channel.
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公开(公告)号：US10768408B2
公开(公告)日：2020-09-08
申请号：US15465019
申请日：2017-03-21
Applicant: STMicroelectronics S.r.l.
Inventor： Enri Duqi , Lorenzo Baldo , Roberto Carminati , Flavio Francesco Villa
Abstract: A buried cavity is formed in a monolithic body to delimit a suspended membrane. A peripheral insulating region defines a supporting frame in the suspended membrane. Trenches extending through the suspended membrane define a rotatable mobile mass carried by the supporting frame. The mobile mass forms an oscillating mass, supporting arms, spring portions, and mobile electrodes that are combfingered to fixed electrodes of the supporting frame. A reflecting region is formed on top of the oscillating mass.
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3.发明授权公开(公告)号：US10676347B2
公开(公告)日：2020-06-09
申请号：US15866380
申请日：2018-01-09
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Enri Duqi , Lorenzo Baldo , Marco Del Sarto , Mikel Azpeitia Urquia
Abstract: A micro-electro-mechanical device, comprising a monolithic body of semiconductor material accommodating a first buried cavity; a sensitive region facing the first buried cavity; a second cavity facing the first buried cavity; a decoupling trench extending from the monolithic body and separating the sensitive region from a peripheral portion of the monolithic body; a cap die, forming an ASIC, bonded to and facing the first face of the monolithic body; and a first gap between the cap die and the monolithic body. The device also comprises at least one spacer element between the monolithic body and the cap die; at least one stopper element between the monolithic body and the cap die; and a second gap between the stopper element and one between the monolithic body and the cap die. The second gap is smaller than the first gap.
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公开(公告)号：US10578505B2
公开(公告)日：2020-03-03
申请号：US15958461
申请日：2018-04-20
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Lorenzo Baldo , Sarah Zerbini , Enri Duqi
Abstract: A process for manufacturing a MEMS pressure sensor having a micromechanical structure envisages: providing a wafer having a substrate of semiconductor material and a top surface; forming a buried cavity entirely contained within the substrate and separated from the top surface by a membrane suspended above the buried cavity; forming a fluidic-communication access for fluidic communication of the membrane with an external environment, set at a pressure the value of which has to be determined; forming, suspended above the membrane, a plate made of polysilicon, separated from the membrane by an empty space; and forming electrical-contact elements for electrical connection of the membrane and of the plate, which are designed to form the plates of a sensing capacitor, the value of capacitance of which is indicative of the value of pressure to be detected. A corresponding MEMS pressure sensor having the micromechanical structure is moreover described.
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公开(公告)号：US20180031822A1
公开(公告)日：2018-02-01
申请号：US15465019
申请日：2017-03-21
Applicant: STMicroelectronics S.r.l.
Inventor： Enri Duqi , Lorenzo Baldo , Roberto Carminati , Flavio Francesco Villa
Abstract: A buried cavity is formed in a monolithic body to delimit a suspended membrane. A peripheral insulating region defines a supporting frame in the suspended membrane. Trenches extending through the suspended membrane define a rotatable mobile mass carried by the supporting frame. The mobile mass forms an oscillating mass, supporting arms, spring portions, and mobile electrodes that are combfingered to fixed electrodes of the supporting frame. A reflecting region is formed on top of the oscillating mass.
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Patent Agency Ranking
6.发明授权公开(公告)号：US09688531B2
公开(公告)日：2017-06-27
申请号：US15191160
申请日：2016-06-23
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Lorenzo Baldo , Enri Duqi , Flavio Francesco Villa
CPC classification number: B81B7/0045 , B81B3/0072 , B81B2201/0228 , B81B2201/025 , B81B2203/0127 , B81B2203/0163 , B81B2203/0315 , B81B2207/012 , B81C1/00182 , B81C1/00325 , B81C2201/0116 , B81C2201/0173 , B81C2203/0785 , G02B26/0858
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.
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公开(公告)号：US09628919B2
公开(公告)日：2017-04-18
申请号：US14265053
申请日：2014-04-29
Applicant: STMicroelectronics S.r.l.
Inventor： Sebastiano Conti , Matteo Perletti , Roberto Carminati , Lorenzo Baldo , Alessandro Morcelli
CPC classification number: H04R19/005 , H01L29/84 , H04R1/04 , H04R19/04
Abstract: An assembly of a MEMS sensor device envisages: a first die, integrating a micromechanical detection structure and having an external main face; a second die, integrating an electronic circuit operatively coupled to the micromechanical detection structure, electrically and mechanically coupled to the first die and having a respective external main face. Both of the external main faces of the first die and of the second die are set in direct contact with an environment external to the assembly, without interposition of a package.
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8.发明申请公开(公告)号：US20160076962A1
公开(公告)日：2016-03-17
申请号：US14950832
申请日：2015-11-24
Applicant: STMicroelectronics S.r.l.
Inventor： Lorenzo Baldo , Michele Vaiana , Mario Chiricosta , Mario Maiore , Paul Georges Marie Rose
CPC classification number: G01L19/0092 , G01K7/01 , G01L9/0054 , G01L9/065
Abstract: A pressure sensor includes a body made of semiconductor material having a first type of conductivity and a pressure-sensitive structure having the first type of conductivity defining a suspended membrane. One or more piezoresistive elements having a second type of conductivity (P) are formed in the suspended membrane. The piezoresistive elements form, with the pressure-sensitive structure, respective junction diodes. A temperature sensing method includes: generating a first current between conduction terminals common to the junction diodes; detecting a first voltage value between the common conduction terminals when the first current is supplied; and correlating the detected first voltage value to a value of temperature of the diodes. The temperature value thus calculated can be used for correcting the voltage signal generated at output by the pressure sensor when the latter is operated for sensing an applied outside pressure which deforms the suspended membrane.
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9.发明申请INTEGRATED TRIAXIAL MAGNETOMETER OF SEMICONDUCTOR MATERIAL MANUFACTURED IN MEMS TECHNOLOGY 有权MEMS技术制造的半导体材料的集成三光子计公开(公告)号：US20140077798A1
公开(公告)日：2014-03-20
申请号：US13905006
申请日：2013-05-29
Applicant: STMicroelectronics S.r.l.
Inventor： Lorenzo Baldo , Francesco Procopio , Sarah Zerbini
IPC: G01R33/028
CPC classification number: G01R33/0286 , G01R33/0005 , G01R33/028 , G01R33/038
Abstract: Two suspended masses are configured so as to be flowed by respective currents flowing in the magnetometer plane in mutually transversal directions and are capacitively coupled to lower electrodes. Mobile sensing electrodes are carried by the first suspended mass and are capacitively coupled to respective fixed sensing electrodes. The first suspended mass is configured so as to be mobile in a direction transversal to the plane in presence of a magnetic field having a component in a first horizontal direction. The second suspended mass is configured so as to be mobile in a direction transversal to the plane in presence of a magnetic field having a component in a second horizontal direction, and the first suspended mass is configured so as to be mobile in a direction parallel to the plane and transversal to the current flowing in the first suspended mass in presence of a magnetic field having a component in a vertical direction.
Abstract translation: 两个悬挂质量被配置为使得在相互横向上在磁力计平面中流动的相应电流流动，并且电容耦合到下电极。 移动感测电极由第一悬浮质量携带并且电容耦合到相应的固定感测电极。 第一悬挂质量被配置为在存在具有在第一水平方向上的分量的磁场的情况下在横向于平面的方向上是可移动的。 第二悬挂质量被配置为在存在具有在第二水平方向上的分量的磁场的情况下在横向于平面的方向上是可移动的，并且第一悬挂质量被配置为在平行于 并且在存在具有在垂直方向上的分量的磁场的情况下横向于在第一悬浮质量块中流动的电流。
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公开(公告)号：US11747608B2
公开(公告)日：2023-09-05
申请号：US16847514
申请日：2020-04-13
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Enri Duqi , Dario Paci , Lorenzo Baldo , Domenico Giusti
IPC: G02B26/08 , B81B3/00 , H01L27/146
CPC classification number: G02B26/08 , B81B3/0018 , H01L27/14627 , B81B2201/047
Abstract: A MEMS optical device including: a semiconductor body; a main cavity, which extends within the semiconductor body; a membrane suspended over the main cavity; a piezoelectric actuator, which is mechanically coupled to the membrane and can be electronically controlled so as to deform the membrane; a micro-lens, mechanically coupled to the membrane so as to undergo deformation following the deformation of the membrane; and a rigid optical element, which contacts the micro-lens and is arranged so that the micro-lens is interposed between the rigid optical element and the membrane. The micro-lens and the main cavity are arranged on opposite sides of the membrane.
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