Wayne H Chang

Title: Wayne H Chang: Innovator in Quantum-Well Semiconductor Technology

Introduction

Wayne H Chang is a notable inventor based in Princeton Junction, NJ (US). He has made significant contributions to the field of semiconductor technology, particularly in the development of quantum-well semiconductor lasers and optical amplifiers. His innovative work has led to advancements that are crucial for various applications in electronics and photonics.

Latest Patents

Wayne H Chang holds a patent for "Delta-strained quantum-well semiconductor lasers and optical amplifiers." This invention involves a quantum-well semiconductor laser/amplifier mounted on a highly conductive semiconductor substrate. The design includes inactive regions composed of a highly doped N-region and a highly doped P-region. The active region features a quantum-well heterostructure of intrinsic semiconductor material that is mounted on the N-region. The quantum-well structure consists of a series of quantum wells, each with barrier layers, quantum-well layers, and delta-strained layers positioned near the center of the quantum wells. The delta-strained layers are extremely thin, formed from several mono-layers of semiconductor material. Notably, there is a significant lattice mismatch between the delta-strained layers and their adjacent quantum-well layers. The band edges of the quantum-well layers and the delta-strained layers are aligned at substantially the same level. The P-region is made of semiconductor material that mounts on the quantum-well structure, with a conductive contact joined to the P-region. When utilized as a semiconductor laser, the active region creates a resonant laser cavity. Wayne H Chang has been granted 1 patent for this groundbreaking technology.

Career Highlights

Wayne H Chang is currently employed by the US Government as represented by the Secretary of the Army. His role involves research and development in semiconductor technologies, where he applies his expertise to advance military and civilian applications. His work has been instrumental in enhancing the performance and efficiency of semiconductor devices.

Collaborations

Wayne has collaborated with esteemed colleagues such as Paul H Shen and Paul W Cooke. Their joint efforts have contributed to the successful development of innovative technologies in the semiconductor field.

Conclusion

Wayne H Chang's contributions to quantum-well semiconductor technology exemplify the impact of innovation in modern electronics. His patent on delta-strained quantum-well semiconductor lasers and optical amplifiers showcases his