Ho Young Cha

Title: Ho Young Cha: Semiconductor and Photonics Inventions.

Introduction

Ho Young Cha is an inventor based in Seoul, South Korea. His work includes inventions in semiconductor devices and avalanche photodiode circuitry. He is associated with 2 patents.

Latest Patents

Cha’s patent, “Quenching circuit,” describes a circuit that uses a quenching diode instead of a quenching resistor to apply bias voltage to an avalanche photodiode. This design is intended to help the photodiode recover quickly from Geiger mode to linear mode while maintaining a stable bias voltage as incident light levels change.

His patent, “Nitride semiconductor device and method of manufacturing the same,” describes a unidirectional heterojunction transistor. The device includes a nitride-semiconductor channel layer, a barrier layer with a recess, a drain electrode, and a recessed-drain Schottky electrode that contacts the drain electrode.

Career Highlights

Cha’s listed organizational affiliations include Hongik University Industry-Academia Cooperation Foundation and Seoul Semiconductor Co., Ltd. His patent work spans photodetection circuitry and nitride-based semiconductor devices.

Collaborations

His listed collaborators include Bong Ryeol Park and Kwan Hyun Lee.

Conclusion

Ho Young Cha’s patents address practical design challenges in photodetection and semiconductor technology, reflecting a focus on circuit performance and device structure.