公开(公告)号：US10788389B2

公开(公告)日：2020-09-29

申请号：US15797773

申请日：2017-10-30

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto Pagani

IPC: G01L25/00 ,  G01L1/16 ,  G01L1/22 ,  G01L1/26

Abstract: A pressure sensor is for positioning within a structure. The pressure sensor may include a pressure sensor integrated circuit (IC) having a pressure sensor circuit responsive to bending, and a transceiver circuit coupled to the pressure sensor circuit. The pressure sensor may include a support body having a recess therein coupled to the pressure sensor IC so that the pressure sensor IC bends into the recess when the pressure sensor IC is subjected to external pressure.

公开(公告)号：US20200303952A1

公开(公告)日：2020-09-24

申请号：US16815770

申请日：2020-03-11

Applicant: STMicroelectronics S.r.l.

Inventor： Roberto LA ROSA

IPC: H02J50/00 ,  H02J50/05 ,  H02J50/80 ,  H02J50/30

Abstract: An energy-harvesting generator provides energy for storage in a capacitor. A sensing circuit senses a voltage across the capacitor and generates an activation signal as a function of the sensed voltage. The activation signal is switches from a first value to a second value when the sensed voltage reaches an upper threshold and switches from the second value to the first value when the sensed voltage reaches a lower threshold. A signal transmitter powered by stored energy in the capacitor responds to the activation signal being switched to the second value by activating and transmitting a transmission signal. The signal transmitter further responds to the activation signal being switched to the first value by discontinuing transmission of the transmission signal and deactivating. A duration of time elapsing between de-activation and activation of the transmitter is indicative of an amount of energy harvested by the energy-harvesting electric generator.

公开(公告)号：US20200301130A1

公开(公告)日：2020-09-24

申请号：US16827282

申请日：2020-03-23

Applicant: STMicroelectronics S.r.l.

Inventor： Nicolo' BONI ,  Roberto CARMINATI ,  Massimiliano MERLI

IPC: G02B26/08 ,  G02B26/10 ,  G03B21/00 ,  H02N2/02

Abstract: A microelectromechanical structure includes a body of semiconductor material having a fixed frame internally defining a cavity, a mobile mass elastically suspended in the cavity and movable with a first resonant movement about a first rotation axis and with a second resonant movement about a second rotation axis, orthogonal to the first axis. First and second pairs of supporting elements, extending in cantilever fashion in the cavity, are rigidly coupled to the frame, and are piezoelectrically deformable to cause rotation of the mobile mass about the first and second rotation axes. First and second pairs of elastic-coupling elements are elastically coupled between the mobile mass and the first and the second pairs of supporting elements. The first and second movements of rotation of the mobile mass are decoupled from one another and do not interfere with one another due to the elastic-coupling elements of the first and second pairs.

公开(公告)号：US20200292570A1

公开(公告)日：2020-09-17

申请号：US16397656

申请日：2019-04-29

Applicant: STMicroelectronics S.r.l.

Inventor： Nicola Matteo Palella ,  Leonardo Colombo

IPC: G01P1/00 ,  G01P15/14 ,  G01C19/5621 ,  G01C19/5656 ,  G01C19/5684 ,  G01C19/5712 ,  G01C21/16 ,  G01C25/00 ,  G01S19/49

Abstract: A positioning apparatus includes: a reference device configured to provide a measured current motion angle of a vehicle; an inertial sensor configured to provide a current input angular rate of the vehicle and associated with at least one inertial sensor behavior parameter dependent on inertial sensor temperature; a temperature sensor configured to provide an input temperature variation of the inertial sensor on a time interval; and a digital estimator configured to recursively computing an estimated current motion angle of the vehicle and at least one previously estimated inertial sensor behavior parameter as function of: the measured current motion angle, a previously estimated motion angle, the current input angular rate, and the input temperature variation.

公开(公告)号：US10775426B2

公开(公告)日：2020-09-15

申请号：US15841585

申请日：2017-12-14

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto Pagani

IPC: G01R31/26 ,  H01L21/66 ,  H01L21/768 ,  G01R31/27 ,  H01L23/48 ,  G01R31/28

Abstract: A testing system for carrying out electrical testing of at least one first through via forms an insulated via structure extending only part way through a substrate of a first body of semiconductor material. The testing system has a first electrical test circuit integrated in the first body and electrically coupled to the insulated via structure. The first electrical test circuit enables detection of at least one electrical parameter of the insulated via structure.

公开(公告)号：US20200286883A1

公开(公告)日：2020-09-10

申请号：US16806257

申请日：2020-03-02

Applicant: STMicroelectronics (Tours) SAS ,  STMicroelectronics S.r.l.

Inventor： Jean-Michel SIMONNET ,  Sophie NGO ,  Simone RASCUNÀ

IPC: H01L27/02 ,  H02H9/04 ,  H01L29/16 ,  H01L29/04 ,  H01L29/20 ,  H01L29/868 ,  H01L29/417

Abstract: Overvoltage protection circuits are provided. In some embodiments, an overvoltage protection circuit includes a first diode made of a first semiconductor material having a bandgap width greater than that of silicon. A second diode is included and is electrically cross-coupled with the first diode. The second diode is made of a second semiconductor material different from the first semiconductor material.

公开(公告)号：US20200285259A1

公开(公告)日：2020-09-10

申请号：US16804994

申请日：2020-02-28

Applicant: STMicroelectronics S.r.l.

Inventor： Giovanni Luca TORRISI ,  Salvatore ABBISSO ,  Cristiano MERONI

IPC: G05F1/565 ,  G05F1/575

Abstract: A voltage regulator circuit includes a first voltage regulator having a first output voltage selection pin set and producing a first output voltage based on a first digital signal received at the first output voltage selection pin set, and a second voltage regulator having a second output voltage selection pin set and producing a second output voltage based on a second digital signal received at the second output voltage selection pin set. The first and second voltage regulators are operable in a voltage tracking mode with the output voltage of the second voltage regulator tracking the output voltage of the first voltage regulator when digital signals received at the selection pin sets have a same value. An overvoltage sensor detects overvoltage events at the first voltage regulator. Control circuitry selectively avoids operation in voltage tracking mode as a result of an overvoltage event detected at the first voltage regulator.

公开(公告)号：US10770643B2

公开(公告)日：2020-09-08

申请号：US15638195

申请日：2017-06-29

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Domenico Giusti ,  Anna Alessandri

IPC: H01L41/09 ,  H02N2/04 ,  B81B3/00 ,  G02B26/08 ,  H01G5/18 ,  H01G5/38 ,  H01H57/00

Abstract: A MEMS actuator device of a piezoelectric type formed on a substrate, with a base unit including a base beam element having a main extension in a extension plane and a thickness in a thickness direction perpendicular to the extension plane, smaller than the main extension. A piezoelectric region extends over the beam element. An anchor region is rigid to the base beam element and to the substrate. A base constraint structure is connected to one end of the base beam element and is configured to allow a deformation of the base beam element in the extension plane and substantially reduce a deformation of the base beam element in the thickness direction.

公开(公告)号：US10768199B2

公开(公告)日：2020-09-08

申请号：US15639524

申请日：2017-06-30

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Alessandro Tocchio ,  Francesco Rizzini

IPC: G01P15/18 ,  G01P15/097 ,  G01P15/125 ,  G01P15/08

Abstract: A MEMS tri-axial accelerometer is provided with a sensing structure having: a single inertial mass, with a main extension in a horizontal plane defined by a first horizontal axis and a second horizontal axis and internally defining a first window that traverses it throughout a thickness thereof along a vertical axis orthogonal to the horizontal plane; and a suspension structure, arranged within the window for elastically coupling the inertial mass to a single anchorage element, which is fixed with respect to a substrate and arranged within the window, so that the inertial mass is suspended above the substrate and is able to carry out, by the inertial effect, a first sensing movement, a second sensing movement, and a third sensing movement in respective sensing directions parallel to the first, second, and third horizontal axes following upon detection of a respective acceleration component. In particular, the suspension structure has at least one first decoupling element for decoupling at least one of the first, second, and third sensing movements from the remaining sensing movements.

公开(公告)号：US10761279B2

公开(公告)日：2020-09-01

申请号：US16428428

申请日：2019-05-31

Applicant: STMicroelectronics S.r.l.

Inventor： Mark Andrew Shaw ,  Luca Maggi ,  Antonio Fincato

IPC: G02B6/42 ,  G02B6/122 ,  G02B6/12

Abstract: A method includes providing a semiconductor body comprising a surface with a recessed portion therein. The recessed portion includes a bottom surface. Optical waveguide cores in a first array of optical waveguide cores extend side-by-side at the bottom surface. The method further includes providing a second array of optical waveguide cores over the first array of optical waveguide cores. Optical waveguide cores in the second array of optical waveguide cores extend side-by-side. Each optical waveguide core in the second array of optical waveguide cores is in an adiabatic coupling relationship with a corresponding optical waveguide core in the first array of optical waveguide cores. The method also includes applying an optical waveguide cladding material over the second array of optical waveguide cores.