公开(公告)号：US11264982B2

公开(公告)日：2022-03-01

申请号：US15944377

申请日：2018-04-03

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Terenzi ,  Davide Ugo Ghisu

IPC: H03K17/082 ,  H03K19/003 ,  B06B1/02

Abstract: A high voltage driving circuit for driving a load receives a low voltage input signal and generates a high voltage output signal. A short circuit protection circuit including a first electronic switch operated by the low voltage input signal and a second electronic switch operated by a low voltage signal obtained by a voltage division of the output high voltage signal. The first electronic switch causing a first pull-up current to be sent to a capacitive element whose voltage controls an input of a threshold comparator. A second electronic switch causes a second pull-down current to be drawn from the capacitive element whose voltage controls the input of the threshold comparator. A short circuit detection signal is generated at an output of said threshold comparator, indicating a short circuit and capable of inhibiting operation of the driving circuit.

公开(公告)号：US11257975B2

公开(公告)日：2022-02-22

申请号：US16167796

申请日：2018-10-23

Applicant: STMicroelectronics S.r.l.

Inventor： Cosimo Gerardi ,  Cristina Tringali ,  Sebastiano Ravesi ,  Marina Foti ,  NoemiGraziana Sparta' ,  Corrado Accardi ,  Stella Loverso

IPC: H01L31/075 ,  H01L31/0376 ,  H01L31/18 ,  H01L31/20 ,  H01L31/0392

Abstract: A photovoltaic cell may include a hydrogenated amorphous silicon layer including a n-type doped region and a p-type doped region. The n-type doped region may be separated from the p-type doped region by an intrinsic region. The photovoltaic cell may include a front transparent electrode connected to the n-type doped region, and a rear electrode connected to the p-type doped region. The efficiency may be optimized for indoor lighting values by tuning the value of the H2/SiH4 ratio of the hydrogenated amorphous silicon layer.

公开(公告)号：US11254561B2

公开(公告)日：2022-02-22

申请号：US16730480

申请日：2019-12-30

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Enri Duqi ,  Bruno Murari ,  Sebastiano Conti

IPC: H01L29/82 ,  B81B3/00 ,  B81B7/00

Abstract: A packaged pressure sensor, comprising: a MEMS pressure-sensor chip; and an encapsulating layer of elastomeric material, in particular PDMS, which extends over the MEMS pressure-sensor chip and forms a means for transferring a force, applied on a surface thereof, towards the MEMS pressure-sensor chip.

公开(公告)号：US11251296B2

公开(公告)日：2022-02-15

申请号：US16528410

申请日：2019-07-31

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Mario Giuseppe Saggio ,  Edoardo Zanetti

IPC: H01L29/78 ,  H01L29/66 ,  H01L29/16 ,  H01L29/10 ,  H01L29/423 ,  H01L29/06

Abstract: A MOSFET device comprising: a structural region, made of a semiconductor material having a first type of conductivity, which extends between a first side and a second side opposite to the first side along an axis; a body region, having a second type of conductivity opposite to the first type, which extends in the structural region starting from the first side; a source region, having the first type of conductivity, which extends in the body region starting from the first side; a gate region, which extends in the structural region starting from the first side, traversing entirely the body region; and a shielding region, having the second type of conductivity, which extends in the structural region between the gate region and the second side. The shielding region is an implanted region self-aligned, in top view, to the gate region.

公开(公告)号：US11245369B2

公开(公告)日：2022-02-08

申请号：US16935649

申请日：2020-07-22

Applicant: STMicroelectronics S.r.l.

Inventor： Edoardo Botti ,  Tommaso Barbieri ,  Davide Luigi Brambilla ,  Cristiano Meroni

IPC: H03F3/217 ,  H03K17/687 ,  H03K3/017 ,  H04R3/00 ,  G05F1/575 ,  H03F1/02 ,  H02M3/158 ,  H02M3/00 ,  H03F3/187 ,  H02M1/00

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

公开(公告)号：US11239796B2

公开(公告)日：2022-02-01

申请号：US17180748

申请日：2021-02-20

Applicant: STMicroelectronics (Grenoble 2) SAS ,  STMicroelectronics S.r.l.

Inventor： Daniele Mangano ,  Benoit Marchand ,  Santo Leotta ,  Hamilton Emmanuel Querino De Carvalho

IPC: H03B5/32 ,  G04F5/06 ,  H03L1/02 ,  H03L1/04 ,  H03L7/099 ,  H04B1/48

Abstract: An embodiment of the present disclosure relates to a device comprising an electronic circuit; an oscillation circuit comprising a quartz crystal, configured to provide a clock signal to the electronic circuit; and a heater configured to increase the temperature of the quartz crystal.

公开(公告)号：US11239132B2

公开(公告)日：2022-02-01

申请号：US16894460

申请日：2020-06-05

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Francesco Salamone ,  Cristiano Gianluca Stella

IPC: H01L23/367 ,  H01L21/56 ,  H01L23/31 ,  H01L21/48 ,  H01L23/433 ,  H01L23/495 ,  H01L23/373 ,  H01L23/48 ,  H01L23/34 ,  H01L23/36 ,  H01L23/42 ,  H01L23/28

Abstract: A semiconductor power device has: a die, with a front surface and a rear surface, and with an arrangement of projecting regions on the front surface, which define between them windows arranged within which are contact regions; and a package, which houses the die inside it. A metal frame has a top surface and a bottom surface; the die is carried by the frame on the top surface; an encapsulation coating coats the frame and the die. A first insulation multilayer is arranged above the die and is formed by an upper metal layer, a lower metal layer, and an intermediate insulating layer; the lower metal layer is shaped according to an arrangement of the projecting regions and has contact projections, which extend so as to electrically contact the contact regions, and insulation regions, interposed between the contact projections, in positions corresponding to the projecting regions.

公开(公告)号：US11233540B2

公开(公告)日：2022-01-25

申请号：US17210135

申请日：2021-03-23

Applicant: STMicroelectronics S.r.l.

Inventor： Matteo Varesio ,  Paolo Treffiletti

IPC: H04B3/54

Abstract: An embodiment method implemented by an agent device comprises receiving, by the agent device, from a device, a bootstrap request message over a first communication channel; transmitting, by the agent device, to a coordinating device, a request message comprising the bootstrap request message and a first channel type indicator indicating a channel type of the first communication channel; receiving, by the agent device, from the coordinating device, a response message comprising a bootstrap response message and a second channel type indicator indicating the channel type of the first communication channel; and transmitting, by the agent device, to a device, the bootstrap response message over a second communication channel in accordance with the second channel type indicator.

公开(公告)号：US11229404B2

公开(公告)日：2022-01-25

申请号：US16195114

申请日：2018-11-19

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Rundo ,  Sabrina Conoci ,  Piero Fallica ,  Rosalba Parenti ,  Vincenzo Perciavalle

IPC: A61B5/00 ,  A61B5/021 ,  A61B5/026 ,  A61B5/18 ,  A61B5/16 ,  G06N3/08 ,  A61B5/024 ,  G16H10/40

Abstract: Blood pressure signals are reconstructed from PhotoPlethysmoGraphy (PPG) signals by: receiving PPG signals including systolic, diastolic and dicrotic phases; and determining first and second derivatives of the PPG signals and: a first set of values indicative of lengths of the signal paths of the PPG signal, the first derivative and the second derivative thereof in the systolic, diastolic and dicrotic phases; a second set of values indicative of relative durations of the PPG signal and the first and second derivatives thereof in the systolic, diastolic and dicrotic phases; and a third set of values indicative of the time separation of peaks and/or valleys in subsequent waveforms of the PPG signal. Reconstruction also includes applying artificial neural network processing to the first, second and third set of values. The artificial neural network processing includes artificial neural network training as a function of blood pressure signals to produce reconstructed blood pressure signals.

公开(公告)号：US20220020884A1

公开(公告)日：2022-01-20

申请号：US17370886

申请日：2021-07-08

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Simone RASCUNÁ

IPC: H01L29/872 ,  H01L29/66 ,  H01L21/265 ,  H01L29/16 ,  H01L29/861

Abstract: The vertical-conduction electronic power device is formed by a body of wide band gap semiconductor which has a first conductivity type and has a surface, and is formed by a drift region and by a plurality of surface portions delimited by the surface. The electronic device is further formed by a plurality of first implanted regions having a second conductivity type, which extend into the drift region from the surface, and by a plurality of metal portions, which are arranged on the surface. Each metal portion is in Schottky contact with a respective surface portion of the plurality of surface portions so as to form a plurality of Schottky diodes formed by first Schottky diodes and second Schottky diodes, wherein the first Schottky diodes have, at equilibrium, a Schottky barrier having a height different from that of the second Schottky diodes.