公开(公告)号：US11537834B2

公开(公告)日：2022-12-27

申请号：US17521524

申请日：2021-11-08

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Olivier Rouy

IPC: G06K19/07 ,  G06K19/077 ,  G06Q20/40 ,  H01Q1/22

Abstract: A smart card includes a first circuit delivering a power supply voltage and a second circuit coupled to the first circuit by an electrical conductor and powered with the power supply voltage. A light-emitting diode has a first terminal coupled to the electrical conductor and a second terminal coupled to a first terminal of the second circuit. During a first operating phase, the first circuit delivers a first value of the power supply voltage and the second circuit applies a first voltage to the first terminal. During a second operating phase, the first circuit delivers a second value of the power supply voltage and the second circuit applies a second voltage to the first terminal.

公开(公告)号：US11536872B2

公开(公告)日：2022-12-27

申请号：US16450365

申请日：2019-06-24

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Abderrezak Marzaki ,  Yoann Goasduff ,  Virginie Bidal ,  Pascal Fornara

IPC: H01H37/04 ,  H01H37/32 ,  H01H37/42 ,  H01H9/02 ,  H01L29/423 ,  H01L49/02 ,  G01V7/04 ,  B81B3/00 ,  B81C1/00 ,  H01L21/3213 ,  H01H61/013

Abstract: A method of operating a mechanical switching device is disclosed. The switching device includes a housing, an assembly disposed in the housing, and a body. The assembly is thermally deformable and comprises a beam held in two different places by two arms secured to edges of the housing. The beam is remote from the body in a first configuration and in contact with and immobilized by the body in a second configuration. The assembly has the first configuration at a first temperature and the second configuration when one of the arms has a second temperature different from the first temperature. The method includes exposing an arm of the assembly to the second temperature, and releasing the beam using a release mechanism. The release mechanism includes a pointed element comprising a pointed region directed towards the body. The pointed element limits an open crater in a concave part of a projection.

公开(公告)号：US11531049B2

公开(公告)日：2022-12-20

申请号：US17322140

申请日：2021-05-17

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Clement Champeix ,  Mathieu Dumont ,  Nicolas Borrel ,  Mathieu Lisart

IPC: G01R29/08 ,  G06F21/55 ,  G06F21/75 ,  H01L23/00 ,  H01L23/66

Abstract: An embodiment integrated circuit includes a first electromagnetic pulse detection device that comprises a first loop antenna formed in an interconnection structure of the integrated circuit, a first end of the first antenna being connected to a first node of application of a power supply potential and a second end of the antenna being coupled to a second node of application of the power supply potential, and a first circuit connected to the second end of the first antenna and configured to output a first signal representative of a comparison of a first current in the first antenna with a first threshold.

公开(公告)号：US20220376622A1

公开(公告)日：2022-11-24

申请号：US17731000

申请日：2022-04-27

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Sebastien Ortet

IPC: H02M3/158

Abstract: In an embodiment a switching power supply includes a voltage ramp generator comprising at least one output capacitor, wherein the generator is configured such that the output capacitor has a first value during a first operating cycle of a first operating mode and a second value during subsequent operating cycles of the first operating mode.

公开(公告)号：US11493470B2

公开(公告)日：2022-11-08

申请号：US16928551

申请日：2020-07-14

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Matthias Vidal-Dho ,  Quentin Hubert ,  Pascal Fornara

IPC: G01N27/22 ,  G01N27/12 ,  H01L23/00

Abstract: Moisture that is possibly present in an integrated circuit is detected autonomously by the integrated circuit itself. An interconnect region of the integrated circuit includes a metal level with a first track and a second track which are separated by a dielectric material. A detection circuit applies a potential difference between the first and second tracks. A current circulating in one of the first and second tracks in response to the potential difference is measured and compared to a threshold. If the current exceeds the threshold, this is indicative of the presence of moisture which renders said dielectric material less insulating.

公开(公告)号：US20220276972A1

公开(公告)日：2022-09-01

申请号：US17667515

申请日：2022-02-08

Applicant: STMicroelectronics (Rousset) SAS

Inventor： François Tailliet

IPC: G06F13/16 ,  G06F12/02

Abstract: The present description concerns attribution, on a communication over an I2C bus, of a first address to a first device by a second device, wherein the second device sends the first address over the I2C bus and, if the second device receives no acknowledgment data, then the first device records the first address.

公开(公告)号：US11411177B2

公开(公告)日：2022-08-09

申请号：US16879577

申请日：2020-05-20

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMICROELECTRONICS (ROUSSET) SAS

Inventor： Philippe Boivin ,  Daniel Benoit ,  Remy Berthelon

IPC: H01L29/02 ,  H01L45/00 ,  H01L27/24

Abstract: The present disclosure concerns a phase-change memory manufacturing method and a phase-change memory device. The method includes forming a first insulating layer in cavities located vertically in line with strips of phase-change material, and anisotropically etching the portions of the first insulating layer located at the bottom of the cavities; and a phase-change memory device including a first insulating layer against lateral walls of cavities located vertically in line with strips of phase-change material.

公开(公告)号：US11387197B2

公开(公告)日：2022-07-12

申请号：US17166156

申请日：2021-02-03

Applicant: STMicroelectronics (Rousset) SAS ,  STMicroelectronics (Research & Development) Limited

Inventor： Mathieu Lisart ,  Bruce Rae

IPC: H01L23/00

Abstract: An electronic integrated circuit chip includes a semiconductor substrate with a front side and a back side. A first reflective shield is positioned adjacent the front side of the semiconductor substrate and a second reflective shield is positioned adjacent the back side of the semiconductor substrate. Photons are emitted by a photon source to pass through the semiconductor substrate and bounce off the first and second reflective shields to reach a photon detector at the front side of the semiconductor substrate. The detected photons are processed in order to determine whether to issue an alert indicating the existence of an attack on the electronic integrated circuit chip.

公开(公告)号：US11381233B2

公开(公告)日：2022-07-05

申请号：US16028559

申请日：2018-07-06

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Philippe Bienvenu ,  Antonio Calandra

IPC: H03K17/082 ,  H03K5/24 ,  H03K3/037 ,  H02H3/20 ,  H02H3/00

Abstract: A protection circuit for a transistor switch coupled to a power supply rail operates to modulate a control voltage at a control terminal of the transistor switch. A first circuit detects an overload across the terminals of the switch with respect to a threshold to generate a signal which modulates the control voltage. A second circuit operates to adjust a value of the threshold in response to sensed variations in a supply voltage at the power supply rail.

公开(公告)号：US11367720B2

公开(公告)日：2022-06-21

申请号：US16518436

申请日：2019-07-22

Applicant: STMicroelectronics (Rousset) SAS

Inventor： Pascal Fornara ,  Fabrice Marinet

IPC: H01L27/02 ,  H01L23/525

Abstract: An integrated circuit includes a circuit module storing sensitive data. An electrically conductive body at a floating potential is located in the integrated circuit and holds an initial amount of electric charge. In response to an attack attempting to access the sensitive data, electric charge is collected on the electrically conductive body. A protection circuit is configured to ground an output of the circuit module, and thus preclude access to the sensitive data, in response to collected amount of electric charge on the electrically conductive body differing from the initial amount and exceeding a threshold.