Vladimir A Dmitriev

Title: Innovations of Vladimir A. Dmitriev

Introduction

Vladimir A. Dmitriev is a notable inventor based in Fuquay-Varina, North Carolina, with a significant contribution to the field of semiconductor technology. He holds four patents that showcase his expertise in developing advanced methods and devices in this area.

Latest Patents

One of his latest patents is a method for reducing micropipe formation in the epitaxial growth of silicon carbide. This innovative method involves producing epitaxial layers of silicon carbide that are substantially free of micropipe defects. The process includes growing an epitaxial layer on a silicon carbide substrate by liquid phase epitaxy from a melt of silicon carbide in silicon, along with an element that enhances the solubility of silicon carbide in the melt. The atomic percentage of this element is designed to predominate over the atomic percentage of silicon in the melt. By continuing to grow the epitaxial layer under specific conditions, micropipe defects present in the substrate are effectively closed, resulting in a significant reduction of these defects in the epitaxial layer.

Another significant patent is for a vertical geometry light-emitting diode (LED) with a group III nitride active layer. This LED emits in the blue portion of the visible spectrum and is characterized by an extended lifetime. The design includes a conductive silicon carbide substrate, an ohmic contact to the substrate, and a conductive buffer layer selected from various group III nitrides. The double heterostructure features a p-n junction on the buffer layer, enhancing the performance and efficiency of the device.

Career Highlights

Vladimir A. Dmitriev is currently associated with Cree Research Inc., a leading company in the field of semiconductor technology. His work has significantly advanced the development of efficient light-emitting diodes and epitaxial growth methods, contributing to the broader field of optoelectronics.

Collaborations

Throughout his career, Dmitriev has collaborated with notable colleagues, including John Adam Edmond and Gary E. Bulman. These collaborations have fostered innovation and the exchange of ideas, further enhancing the impact of their collective work in the industry.

Conclusion

Vladimir A. Dmitriev's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative methods and devices continue to influence advancements in optoelectronics and epitax