Ji Min Cheon

Title: Ji Min Cheon: Innovator in CMOS Image Sensor Technology

Introduction

Ji Min Cheon is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of semiconductor technology, particularly in the development of complementary metal oxide semiconductor (CMOS) image sensors. With a total of 2 patents to his name, Cheon is recognized for his innovative approaches to enhancing image sensor performance.

Latest Patents

Cheon's latest patents include a groundbreaking CMOS image sensor and its operating method. This inventive concept focuses on generating photoelectrons at a photo sensor element during two distinct time intervals. The first interval allows for a longer generation of photoelectrons, while the second interval is shorter. The method also involves adjusting the gate voltage of a transfer transistor connected to the photo sensor element differently during these two times. This innovation aims to increase the dynamic range of the CMOS image sensor, thereby improving its overall performance.

Another notable patent is related to a switched capacitor circuit. This invention features an inverting amplifier that utilizes a chopper stabilization circuit to remove offset. It also includes a sampling unit connected between an input terminal and the inverting amplifier, along with a feedback unit connected in parallel to the inverting amplifier. This design enhances the efficiency and accuracy of the circuit.

Career Highlights

Ji Min Cheon is affiliated with Yonsei University, where he continues to engage in research and development in semiconductor technologies. His work has garnered attention in both academic and industrial circles, contributing to advancements in imaging technology.

Collaborations

Cheon has collaborated with notable colleagues, including Gunhee Han and Dongmyung Lee. Their combined expertise has fostered innovative solutions in the field of image sensors.

Conclusion

Ji Min Cheon stands out as a key figure in the advancement of CMOS image sensor technology. His patents reflect a commitment to innovation and excellence in the semiconductor industry. Through his work at Yonsei University and collaborations with esteemed colleagues, Cheon continues to push the boundaries of what is possible in imaging technology.