Pooran Chandra Joshi

Title: Pooran Chandra Joshi: Innovator in Semiconductor Technologies

Introduction

Pooran Chandra Joshi is a distinguished inventor based in Vancouver, WA, known for his significant contributions to semiconductor technologies. With a remarkable total of 37 patents, Joshi has played a vital role in shaping innovations in the field, particularly in the areas of thin films and luminescence devices.

Latest Patents

Among his latest patents, Pooran Chandra Joshi developed a groundbreaking silicon oxide-nitride-carbide thin film embedded with nanocrystalline semiconductor particles. This innovative method entails forming a semiconductor nanocrystalline silicon insulating thin film with a tunable bandgap, utilizing a high-density plasma-enhanced chemical vapor deposition (PECVD) process. The resulting SiOxNyCz thin film can achieve a bandgap ranging from about 1.9 to 3.0 electron volts (eV), with semiconductor nanoparticles measuring between 1 to 20 nanometers.

Another notable patent focuses on the fabrication of a semiconductor nanoparticle embedded insulating film luminescence device. The described method involves depositing a semiconductor nanoparticle embedded silicon insulating film, inclusive of nitrogen, oxygen, or carbon, over a bottom electrode. Following an annealing process, this film demonstrates peak photoluminescence (PL) at wavelengths between 475 to 750 nanometers, making it valuable for short wavelength luminescence applications.

Career Highlights

Joshi's career has seen him associated with prominent organizations, including Sharp Laboratories of America, Inc. and the United States of America as represented by the Secretary of the Army. His expertise and innovative mindset have driven advancements in semiconductor research and applications, making significant contributions to the industry.

Collaborations

Throughout his career, Pooran Chandra Joshi has collaborated with skilled professionals, including Apostolos T. Voutsas and John Hartzell. These collaborations have not only enriched his research but have also led to the successful development of numerous innovative technologies.

Conclusion

In summary, Pooran Chandra Joshi stands out as a notable inventor in the realm of semiconductor technologies. His extensive patent portfolio and collaboration with esteemed colleagues underscore his influence and dedication to advancing the field. As innovations continue to evolve, Joshi's contributions will undoubtedly remain pivotal in shaping future technologies.