Company Filing History:
Years Active: 2018
Title: Innovations of Zhaoyu He in Charge-Coupled Devices
Introduction
Zhaoyu He is an accomplished inventor based in Santa Clara, California. He has made significant contributions to the field of charge-coupled devices (CCDs), particularly focusing on low-voltage applications. His innovative work has implications for various optical spectrum applications, enhancing device performance while reducing costs.
Latest Patents
Zhaoyu He holds a patent for a low-voltage charge-coupled device with a heterostructure charge-storage well. This invention utilizes barrier and absorber semiconductors with a type-II band alignment in nBn or pBp photodetectors. The design allows for the confinement of the depletion region and the trapping of photogenerated minority carriers. Depending on the spectral regime, materials such as (InAs/InAsSb)/(InAs/AlGaSb) superlattices can be employed for infrared applications, while Si/Ge or AlP/GaP can be used for the visible spectrum, and GaN/ZnO for ultraviolet applications. The resulting device not only maintains the advantages of conventional CCDs, such as in-pixel signal integration to suppress noise, but also operates at a lower voltage, ensuring reduced power consumption and minimal band-to-band tunneling current. This innovation also simplifies the fabrication process by eliminating the need for a flip-chip mount on a read-out integrated circuit.
Career Highlights
Zhaoyu He is affiliated with Arizona State University, where he continues to advance research in photodetector technologies. His work has garnered attention for its potential to revolutionize the performance and efficiency of optical devices.
Collaborations
Zhaoyu He collaborates with Yong-Hang Zhang, contributing to the development of cutting-edge technologies in the field of charge-coupled devices.
Conclusion
Zhaoyu He's innovative contributions to low-voltage charge-coupled devices demonstrate his commitment to advancing optical technology. His work not only enhances device performance but also reduces costs, making significant strides in the field of photodetectors.