Patents Assigned to Renesas Electronics Corporation
  • Patent number: 12362280
    Abstract: An upper surface of a plug (PL1) is formed so as to be higher than an upper surface of an interlayer insulating film (PIL) by forming the interlayer insulating film (PIL) on a semiconductor substrate (1S), completing a CMP method for forming the plug (PL1) inside the interlayer insulating film (PIL), and then, making the upper surface of the interlayer insulating film (PIL) to recede. In this manner, reliability of connection between the plug (PL1) and a wiring (W1) in a vertical direction can be ensured. Also, the wiring (W1) can be formed so as not to be embedded inside the interlayer insulating film (PIL), or a formed amount by the embedding can be reduced.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: July 15, 2025
    Assignee: Renesas Electronics Corporation
    Inventor: Takeshi Kawamura
  • Patent number: 12362743
    Abstract: A first P-type transistor and a second P-type transistor are connected in series between a power supply terminal and an output terminal. A first N-type transistor and a second N-type transistor are connected between a ground terminal and a power supply terminal. The second N-type transistor and the second P-type transistor are complementarily turned on and off in accordance with an input signal. A gate voltage control circuit changes at least one of the gate voltage of the P-type transistor whose drain is electrically connected to the output terminal and the gate voltage of the N-type transistor by following the output voltage VOUT of the output terminal while keeping the P-type transistor or the N-type transistor on-states.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: July 15, 2025
    Assignee: Renesas Electronics Corporation
    Inventor: Koji Takayanagi
  • Publication number: 20250202365
    Abstract: A controller for controlling a power stage having a plurality of phases is presented. The controller generates a control signal; sends the control signal to the plurality of phases via a first link; receives from each phase a feedback signal via a second link; sums the plurality of feedback signals and derives an average current per phase.
    Type: Application
    Filed: December 13, 2023
    Publication date: June 19, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Adam Matthew BUMGARNER, Benoit LABBE
  • Publication number: 20250202354
    Abstract: A method of increasing a transient response of a current mode controller and a current mode controller with an improved transient response are provided. The current mode controller is configured to control a high side switch and a low side switch. The current mode controller includes a pulse width modulation generator.
    Type: Application
    Filed: December 18, 2023
    Publication date: June 19, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Bayan Liu KIHM, Vinod Aravindakshan LALITHAMBIKA, Allan Richard WARRINGTON, Christopher John MILLER
  • Publication number: 20250192759
    Abstract: A semiconductor device includes a first power supply voltage line to which a power supply voltage is supplied, a second power supply voltage line, a first impedance element provided between the first power supply voltage line and the second power supply voltage line, a first reference voltage line to which a reference voltage is supplied, a second reference voltage line, a second impedance element provided between the first reference voltage line and the second reference voltage line, an electronic circuit provided between the second power supply voltage line and the second reference voltage line and performing a predetermined processing on an input signal, and provided in series between the second power supply voltage line and the second reference voltage line, and having gates connected to drains, a first transistor which is a P-channel MOS transistor, and a second transistor which is an N-channel MOS transistor.
    Type: Application
    Filed: November 21, 2024
    Publication date: June 12, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Hajime HAYASHIMOTO, Kenji SEWAKI
  • Publication number: 20250183888
    Abstract: Gate drivers, systems and methods are described. A gate driver can generate a gate current for driving a power switch in a system. A circuit can define a waveform shape of the gate current. The defined waveform shape of the gate current can cause a current of the power switch to have a constant slew rate.
    Type: Application
    Filed: November 30, 2023
    Publication date: June 5, 2025
    Applicant: Renesas Electronics Corporation
    Inventor: Daisuke KOBAYASHI
  • Publication number: 20250173290
    Abstract: A communications controller is disclosed. The communications controller includes a data transfer unit and a protocol engine. The communications controller further includes a circuit configured to control transfer of data from the data transfer unit to the protocol engine in dependence upon a process identifier which identifies a process entity requiring the protocol engine to transmit data for the process entity.
    Type: Application
    Filed: January 29, 2025
    Publication date: May 29, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Thorsten HOFFLEIT, Christian MARDMÖLLER
  • Publication number: 20250147079
    Abstract: A current sense circuit is provided. The circuit includes a current mirror circuit QN1, QN2, and diode-connected QP1, QP2, QP3, and QP4 with their bases connected together, stacking such that the diode-connected side (QN1, QP1, QP3) aligns and connecting the emitter of QP2 to the collector of QP4. Furthermore, the gates of MP1 and MP2 are connected to the collector of QN2 and QP2, respectively. Additionally, the source of MP1 is connected to the drain of MP3 via the source of MP2 and also connected to the source of a Sense MOS. Moreover, the emitter of QP4 is connected to the source of MP4 via R1, and the drain of MP4 is connected to the source (OUT terminal) of a Main MOS. Furthermore, the gates of MP3 and MP4 are connected to the emitters of QN1 and QN2.
    Type: Application
    Filed: September 12, 2024
    Publication date: May 8, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Yoshiaki ISHIZEKI, Makoto TANAKA
  • Patent number: 12289115
    Abstract: A semiconductor device includes a phase interpolation circuit including an N-bit current digital-analog conversion circuit, a switch circuit, a capacitive element, an inverter, and a control logic circuit. The control logic circuit detects an end of a phase interpolation operation by using an output result of the inverter and outputs a first control signal for turning off the current digital-analog conversion circuit. Also, the control logic circuit detects the end of the phase interpolation operation by using the output result of the inverter and outputs a second control signal for turning off the inverter.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: April 29, 2025
    Assignee: Renesas Electronics Corporation
    Inventors: Yusuke Imanaka, Atsushi Motozawa
  • Patent number: 12288356
    Abstract: Systems and methods for evaluating a set of bounding boxes in a blended image are described. A system can include an integrated circuit configured to obtain expected bounding box data. The expected bounding box data can be based on coordinates data of an image. The integrated circuit can determine target coordinates based on the expected bounding box data. The integrated circuit can receive a blended image including a set of objects and a set of bounding boxes. The integrated circuit can extract pixel values located at the target coordinates in the blended image. The integrated circuit can identify an error relating to the set of bounding boxes based on the extracted pixel values and the expected bounding box data.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: April 29, 2025
    Assignee: Renesas Electronics Corporation
    Inventors: Shijia Guo, Stefan Geldreich
  • Publication number: 20250112663
    Abstract: According to an aspect, a transceiver comprises a transmitter section having a first PLL (phased locked loop) providing a first reference signal to the transmitter section, a receiver section having a second PLL providing a second reference signal to the receiver section, a coupler coupling the second PLL to the transmitter section when the transceiver is operative in a test mode measuring a first noise component introduced by the first PLL. The first reference signal is coupled to the receiver section internally within the transceiver as a local reference signal to the receiver section both in the test mode and a functional mode.
    Type: Application
    Filed: January 21, 2024
    Publication date: April 3, 2025
    Applicants: Renesas Electronics Corporation, Steradian Semiconductors Private Limited
    Inventors: Gireesh Rajendran, Alok Prakash Joshi, Xu Zhishan
  • Publication number: 20250098990
    Abstract: Systems and methods for sensing and processing biosignals are described. An example system can include a first device configured to sense at least one biosignal and a second device. The second device can receive the at least one biosignal from the first device. The second device can receive power via a first wireless interface. The second device can charge a rechargeable battery using the received power. The second device can receive a signal via the first wireless interface, wherein the signal encodes credentials of a user. The second device can demodulate the signal to decode the user credentials. The second device can authenticate the user credentials. The second device can, in response to authentication of the user credentials, communicate the at least one biosignal to a user device via a second wireless interface.
    Type: Application
    Filed: June 27, 2024
    Publication date: March 27, 2025
    Applicant: Renesas Electronics Corporation
    Inventor: Dirk NAURATH
  • Patent number: 12255596
    Abstract: A filter circuit for use with a system configured to be coupled with an electrical load, the filter circuit comprising a first filter, wherein the first filter is configured to receive a first voltage and provide an output voltage, the output voltage being the first voltage after filtering by the first filter, and the filter circuit is configured to adjust the bandwidth of the first filter in response to a load transient.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: March 18, 2025
    Assignee: Renesas Electronics Corporation
    Inventor: Nishant Singh Thakur
  • Patent number: 12242402
    Abstract: A communications controller is disclosed. The communications controller includes a data transfer unit and a protocol engine. The communications controller further includes a circuit configured to control transfer of data from the data transfer unit to the protocol engine in dependence upon a process identifier which identifies a process entity requiring the protocol engine to transmit data for the process entity.
    Type: Grant
    Filed: October 3, 2022
    Date of Patent: March 4, 2025
    Assignee: Renesas Electronics Corporation
    Inventors: Thorsten Hoffleit, Christian Mardmöller
  • Publication number: 20250070643
    Abstract: A controller for controlling a power stage having one or more phases is presented. The controller includes a reference circuit that generates a reference signal; a ramp generator generating a feedback ramp signal based on a feedback signal of the power stage; and a modulator generating a control signal for controlling at least one phase of the power stage. The control signal may include a series of pulses in which each pulse is associated with a corresponding phase of the power stage.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 27, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Benoit LABBE, Adam Matthew BUMGARNER, Vinod Aravindakshan LALITHAMBIKA, Allan Richard WARRINGTON
  • Publication number: 20250070665
    Abstract: A power converter controller is presented. The controller includes a ramp generator for generating a ramp signal and a ramp adjuster. The ramp adjuster compares a feedback signal of the converter with a threshold signal to obtain a comparison signal, and to adjust an amplitude of the ramp signal based on the comparison signal. Also presented is a constant on time COT power converter including the above controller.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 27, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Benoit LABBE, Allan Richard WARRINGTON, Adam Matthew BUMGARNER
  • Publication number: 20250055472
    Abstract: A semiconductor device is provided. The semiconductor device is capable of operating accurately by suppressing errors caused by dielectric relaxation phenomena. The semiconductor device includes a first capacitive element, a signal cancellation circuit, a sampling circuit, a negative feedback circuit, an AD converter, and an addition-and-subtraction circuit.
    Type: Application
    Filed: August 9, 2024
    Publication date: February 13, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Tomohiko EBATA, Tetsuo MATSUI
  • Publication number: 20250055471
    Abstract: A semiconductor device is provided. The semiconductor device is capable of operating accurately by suppressing errors caused by dielectric relaxation phenomena. The semiconductor device includes a first capacitive element, a first switch circuit, a first inversion signal generating circuit, a second capacitive element, and a negative feedback circuit.
    Type: Application
    Filed: August 9, 2024
    Publication date: February 13, 2025
    Applicant: Renesas Electronics Corporation
    Inventors: Tomohiko EBATA, Tetsuo MATSUI
  • Patent number: 12218579
    Abstract: A semiconductor device includes: a constant current generating circuit unit; a first current mirror circuit unit having a constant current as an input current and generating a first mirror current as a mirror current; a level shift circuit unit including a clamp transistor between whose drain and source a first mirror current flows and to whose base a power supply voltage of the constant current generating circuit unit is applied, and a transistor that is connected in series to the clamp transistor and through which the first mirror current flows; a second current mirror circuit unit having as an input stage a transistor and having as an output stage a transistor through which a second mirror current replicating the first mirror current flows; and an error absorption circuit unit connected to a terminal for outputting the second mirror current of the output-stage transistor in the second current mirror circuit unit.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: February 4, 2025
    Assignee: Renesas Electronics Corporation
    Inventor: Hideyuki Tajima
  • Publication number: 20250022871
    Abstract: A semiconductor device is provided. The semiconductor device includes an input/output cell, a core logic circuit, a first power supply cell, a second power supply cell, a third power supply cell and a fourth power supply cell. Each of the power supply cells includes a protection circuit and a bidirectional diode.
    Type: Application
    Filed: July 9, 2024
    Publication date: January 16, 2025
    Applicant: Renesas Electronics Corporation
    Inventor: Yasuyuki MORISHITA