Douglas E Holmes

Title: Douglas E. Holmes: Innovator in Crystal Growth Technology

Introduction

Douglas E. Holmes is a notable inventor based in Thousand Oaks, CA (US). He has made significant contributions to the field of materials science, particularly in the growth of high-purity crystals. His innovative work has led to advancements in the production of Group III-V materials, which are essential for various electronic applications.

Latest Patents

Holmes holds a patent for a process titled "Process for growing indium phosphide of controlled purity." This patent describes a method for growing crystals of indium phosphide with controlled and high purity. The process involves growing the crystal in the presence of hydrogen that contains a predetermined amount of water vapor. This water vapor effectively suppresses the concentration of silicon impurities from the reaction chamber and the starting materials, which are incorporated into the grown crystal. The crystal growth can be achieved through either an epitaxial process or a bulk process. This innovation is crucial for developing devices such as Gunn diodes, which require precise impurity concentrations in their layers.

Career Highlights

Douglas E. Holmes has worked at Hughes Aircraft Company, where he has applied his expertise in crystal growth technology. His work has contributed to the advancement of materials used in high-performance electronic devices. Holmes's dedication to innovation in this field has established him as a respected figure among his peers.

Collaborations

Holmes has collaborated with G Sanjiv Kamath, further enhancing the research and development efforts in crystal growth technologies. Their partnership has led to significant advancements in the understanding and application of high-purity materials.

Conclusion

Douglas E. Holmes is a distinguished inventor whose work in the growth of indium phosphide crystals has made a lasting impact on the field of materials science. His contributions continue to influence the development of advanced electronic devices.