Hojun Chang

Title: Hojun Chang: Innovator in Semiconductor Technology

Introduction

Hojun Chang is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on enhancing the performance and reliability of semiconductor devices.

Latest Patents

Chang's latest patents include groundbreaking innovations. One of his notable inventions is a semiconductor chip capable of calibrating the bias voltage supplied to a write clock buffer, regardless of process and temperature variations. This semiconductor chip features a write clock buffer, a voltage regulator, a process calibration circuit, and a temperature calibration circuit. The voltage regulator generates multiple regulated voltages, while the process calibration circuit outputs one of these voltages as a bias voltage, depending on the semiconductor chip's process variation. The temperature calibration circuit tracks real-time temperature variations and performs analog calibration on the bias voltage, ensuring optimal performance.

Another significant patent is for a frequency divider and memory device. This invention includes a frequency dividing core circuit that generates division clock signals based on a clock signal and an inverted clock signal. It also features a controller that generates a body bias control signal based on clock frequency information, along with an adaptive body bias (ABB) generator that applies the body bias to the transistors.

Career Highlights

Hojun Chang is currently employed at Samsung Electronics Co., Ltd., where he continues to push the boundaries of semiconductor technology. His work has been instrumental in developing advanced semiconductor solutions that meet the demands of modern electronics.

Collaborations

Chang collaborates with talented individuals in his field, including coworkers Hundae Choi and Jaewoo Lee. Their combined expertise contributes to the innovative projects at Samsung Electronics.

Conclusion

Hojun Chang is a key figure in semiconductor innovation, with a focus on improving device performance through his patented technologies. His contributions are shaping the future of electronics and enhancing the capabilities of semiconductor devices.