ROHM Co., LTD. patent applications published on September 12th, 2024

Summary of the patent applications from ROHM Co., LTD. on September 12th, 2024

1. **Summary**: ROHM Co., Ltd. has recently filed patents for innovative technologies in oscillator circuits, power supply control devices, and semiconductor devices. These patents introduce advancements such as a unique ring configuration of multi-stage inverters in oscillator circuits, the ability to add jitter to switching frequencies in power supply control devices, and improved element isolation in semiconductor chips. These technologies aim to enhance performance, efficiency, and reliability in various electronic applications.

2. **Key Points of Patents**:

  - Oscillator Circuit:
    * Unique ring configuration of multi-stage inverters for oscillation.
    * Inclusion of a capacitor in the loop path for controlled charging and discharging.
    * Charging/discharging control circuit for precise voltage level adjustments.
    * Bias current generating circuit for consistent bias currents.
  
  - Power Supply Control Device:
    * High-side gate driver and bootstrap circuit for efficient switching.
    * Controller for switching between heavy-load and light-load modes.
    * Adjustment of capacitance value based on transistor state.
  
  - Semiconductor Device:
    * Element isolation portion with isolation trench, insulating film, and isolation conductor.
    * First isolation conductor at central portion of trench.
    * Second isolation conductor with inclined wall for improved isolation.

3. **Notable Applications**:

  - Oscillator Circuit:
    * Precision timing signals in electronic devices.
    * Communication systems, sensors, and signal processing equipment.
  
  - Power Supply Control Device:
    * Power electronics, renewable energy systems, electric vehicles.
    * Industrial automation, telecommunications infrastructure.
  
  - Semiconductor Device:
    * Manufacturing of advanced semiconductor devices.
    * Improved performance and reliability of integrated circuits.

Patent applications for ROHM Co., LTD. on September 12th, 2024

SENSOR MODULE, CONTROL APPARATUS, CONTROL METHOD, AND CONTROL PROGRAM (18597075)

Main Inventor

Shunsuke Akasaka

ACCELERATION SENSOR (18591627)

Main Inventor

Daisuke NISHINOHARA

MAGNETISM DETECTION DEVICE (18421269)

Main Inventor

Tetsuya KITADE

SEMICONDUCTOR POWER DEVICE AND METHOD FOR PRODUCING SAME (18652013)

Main Inventor

Yuki NAKANO

SEMICONDUCTOR DEVICE (18660967)

Main Inventor

Hiroaki MATSUBARA

SEMICONDUCTOR DEVICE (18667009)

Main Inventor

Katsuhiko YOSHIHARA

SEMICONDUCTOR DEVICE FOR AUDIO (18594605)

Main Inventor

YOSUKE SATO

SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE (18596305)

Main Inventor

Kosaku ADACHI

POWER SUPPLY CONTROL DEVICE AND SWITCHING POWER SUPPLY (18665287)

Main Inventor

Kazuhiro MURAKAMI

POWER SUPPLY CONTROL DEVICE (18597407)

Main Inventor

Natsuki Yamamoto

OSCILLATOR CIRCUIT (18597517)

Main Inventor

Hiroki Yano