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公开(公告)号：US20230160024A1
公开(公告)日：2023-05-25
申请号：US17531313
申请日：2021-11-19
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Massimiliano PESATURO , Lillo RAIA , Salvatore PETRALIA , Domenico GIUSTI , Marco FERRERA
CPC classification number: C12Q1/701 , C12Q1/686 , C12Q1/6806 , B01L3/527 , B01L7/52 , B41M5/0023 , B01L2200/0647 , B01L2200/0689 , B01L2200/12 , B01L2200/16 , B01L2300/0819 , B01L2300/16
Abstract: A substrate has a plurality of microdots positioned thereon. Each microdot contains one or more primers for gene amplification for a particular target gene. The microdots are placed on the substrate and the substrate is positioned in a housing. The housing has a sample fluid to be tested introduced therein covering the microdot array. While the sample fluid is overlying the substrate, the amplification of the target gene is carried out if it is present within the sample. If the target gene that matches the primers is not present, then amplification will not take place. The fluid also contains fluorophores which will be fixed into the gene as it increases in size as it clearly detects if gene amplification has occurred by detecting the amount of light detected for a particular microdot. In a preferred embodiment, the sample fluid is placed on top of a sealing layer that is less dense then water, such as wax or mineral oil. During a heating of the sample fluid and sealing layer, the sample fluid will sink to the bottom of the sealing layer so that it is fully encased and protected.
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公开(公告)号：US20220118480A1
公开(公告)日：2022-04-21
申请号：US17497542
申请日：2021-10-08
Applicant: STMicroelectronics S.r.l.
Inventor： Domenico GIUSTI , Fabio QUAGLIA , Marco FERRERA
Abstract: A PMUT device includes a membrane element extending perpendicularly to a first direction and configured to generate and receive ultrasonic waves by oscillating about an equilibrium position. At least two piezoelectric elements are included, with each one located over the membrane element along the first direction and configured to cause the membrane element to oscillate when electric signals are applied to the piezoelectric element, and generate electric signals in response to oscillations of the membrane element. The membrane element has a lobed shape along a plane perpendicular to the first direction, with the lobed shape including at least two lobes. The membrane element includes for each piezoelectric member a corresponding membrane portion including a corresponding lobe, with each piezoelectric member being located over its corresponding membrane portion.
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公开(公告)号：US20210351338A1
公开(公告)日：2021-11-11
申请号：US17137220
申请日：2020-12-29
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Domenico GIUSTI , Carlo Luigi PRELINI , Marco FERRERA , Carla Maria LAZZARI , Luca SEGHIZZI , Nicolo' BONI , Roberto CARMINATI , Fabio QUAGLIA
Abstract: The MEMS actuator is formed by a substrate, which surrounds a cavity; by a deformable structure suspended on the cavity; by an actuation structure formed by a first piezoelectric region of a first piezoelectric material, supported by the deformable structure and configured to cause a deformation of the deformable structure; and by a detection structure formed by a second piezoelectric region of a second piezoelectric material, supported by the deformable structure and configured to detect the deformation of the deformable structure.
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14.发明公开公开(公告)号：US20230381816A1
公开(公告)日：2023-11-30
申请号：US18320876
申请日：2023-05-19
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Domenico GIUSTI , Fabio QUAGLIA , Marco FERRERA
IPC: B06B1/06
CPC classification number: B06B1/0603 , B06B1/0629
Abstract: Micromachined pressure transducer including: a fixed body of semiconductor material, which laterally delimits a main cavity; a transduction structure, which is suspended on the main cavity and includes at least a pair of deformable structures and a movable region, which is formed by semiconductor material and is mechanically coupled to the fixed body through the deformable structures. Each deformable structure includes: a support structure of semiconductor material, which includes a first and a second beam, each of which has ends fixed respectively to the fixed body and to the movable region, the first beam being superimposed, at a distance, on the second beam; and at least one piezoelectric transduction structure, mechanically coupled to the first beam. The piezoelectric transduction structures are electrically controllable so that they cause corresponding deformations of the respective support structures and a consequent translation of the movable region along a translation direction.
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Patent Agency Ranking
15.发明申请公开(公告)号：US20230019422A1
公开(公告)日：2023-01-19
申请号：US17949712
申请日：2022-09-21
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Domenico GIUSTI , Marco FERRERA
Abstract: Various embodiments of the present disclosure provide a read/write device for a hard-disk memory system. The read/write device includes a fixed structure; a membrane region including a first and a second membrane, which are constrained to the fixed structure, and a central portion, interposed between the first and second membranes; a first and a second piezoelectric actuator, mechanically coupled, respectively, to the first and second membranes; and a read/write head, which is fixed to the central portion of the membrane region. The first and second piezoelectric actuators can be controlled so as to cause corresponding deformations of the first and second membranes, said deformations of the first and second membranes causing corresponding movements of the read/write head with respect to the fixed structure.
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16.发明申请公开(公告)号：US20220306456A1
公开(公告)日：2022-09-29
申请号：US17839131
申请日：2022-06-13
Applicant: STMICROELECTRONICS S.r.l.
Inventor： Fabio QUAGLIA , Marco FERRERA , Marco DEL SARTO
Abstract: A process for manufacturing MEMS devices, includes forming a first assembly, which comprises: a dielectric region; a redistribution region; and a plurality of unit portions. Each unit portion of the first assembly includes: a die arranged in the dielectric region; and a plurality of first and second connection elements, which extend to opposite faces of the redistribution region and are connected together by paths that extend in the redistribution region, the first connection elements being coupled to the die. The process further includes: forming a second assembly which comprises a plurality of respective unit portions, each of which includes a semiconductor portion and third connection elements; mechanically coupling the first and second assemblies so as to connect the third connection elements to corresponding second connection elements; and then removing at least part of the semiconductor portion of each unit portion of the second assembly, thus forming corresponding membranes.
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17.发明申请公开(公告)号：US20200024131A1
公开(公告)日：2020-01-23
申请号：US16518865
申请日：2019-07-22
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Fabio QUAGLIA , Marco FERRERA , Marco DEL SARTO
Abstract: A process for manufacturing MEMS devices, includes forming a first assembly, which comprises: a dielectric region; a redistribution region; and a plurality of unit portions. Each unit portion of the first assembly includes: a die arranged in the dielectric region; and a plurality of first and second connection elements, which extend to opposite faces of the redistribution region and are connected together by paths that extend in the redistribution region, the first connection elements being coupled to the die. The process further includes: forming a second assembly which comprises a plurality of respective unit portions, each of which includes a semiconductor portion and third connection elements; mechanically coupling the first and second assemblies so as to connect the third connection elements to corresponding second connection elements; and then removing at least part of the semiconductor portion of each unit portion of the second assembly, thus forming corresponding membranes.
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公开(公告)号：US20190217618A1
公开(公告)日：2019-07-18
申请号：US16249752
申请日：2019-01-16
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Domenico GIUSTI , Marco FERRERA , Carlo Luigi PRELINI , Mauro CATTANEO , Andrea NOMELLINI
CPC classification number: B41J2/1626 , B41J2/14201 , B41J2/1606 , B41J2/1607 , B41J2/161 , B41J2/1623 , B41J2/1628 , B41J2/1629 , B41J2/1631 , B41J2/1632 , B41J2/1642 , B41J2002/14241 , B81C1/00087
Abstract: A method for manufacturing a device for ejecting a fluid, comprising the steps of: forming, in a first semiconductor wafer that houses a nozzle of the ejection device, a first structural layer; removing selective portions of the first structural layer to form a first portion of a chamber for containing the fluid; removing, in a second semiconductor wafer that houses an actuator of the ejection device, selective portions of a second structural layer to form a second portion of the chamber; and coupling together the first and second semiconductor wafers so that the first portion directly faces the second portion, thus forming the chamber. The first portion defines a part of volume of the chamber that is larger than a respective part of volume of the chamber defined by the second portion.
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19.发明申请公开(公告)号：US20190127214A1
公开(公告)日：2019-05-02
申请号：US16165828
申请日：2018-10-19
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Dario PACI , Marco FERRERA , Andrea PICCO
Abstract: A MEMS device comprising a body, having a first surface and a second surface; a diaphragm cavity in the body extending from the second surface of the body; a deformable portion in the body between the first surface and the diaphragm cavity; and a piezoelectric actuator, extending on the first surface of the body, over the deformable portion. The MEMS device is characterized in that it comprises a recess structure extending in the body and delimiting a stopper portion for the deformable portion.
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