Company Filing History:
Years Active: 1983-1989
Title: The Innovations of Vernon E. White
Introduction
Vernon E. White is a notable inventor based in Needham, MA (US), recognized for his contributions to the field of crystal growth technology. With a total of two patents to his name, he has made significant advancements in the production of gallium arsenide (GaAs) crystals, which are essential in various electronic applications.
Latest Patents
Vernon E. White's latest patents include a groundbreaking process for gallium arsenide crystal growth. This innovative method allows for the production of semi-insulating GaAs with low dislocation density, achieved without doping of PBN crucibles. The process is a variant of the Heat Exchanger Method (HEM) disclosed in U.S. Pat. No. 3,898,051. It enables the growth of crack-free, semi-insulating GaAs crystals from presynthesized undoped GaAs meltstock in sealed quartz crucibles, eliminating the need for an encapsulant. One aspect of this invention features seeded growth of <100> orientation crystals, which have a dislocation density 1-2 orders of magnitude less than that of the seed. Additionally, crystals with fewer than 500 dislocations/cm² in their center column can be grown without a seed. Another patent involves a novel crystal growth apparatus designed to control the temperature of the top surface of the capillary die and the adjacent meniscus during the growth of a crystalline body. This apparatus includes a tiltable heat shield that allows for precise temperature distribution adjustments, ensuring a substantially constant cross-sectional size of the crystalline body.
Career Highlights
Throughout his career, Vernon E. White has worked with several companies, including Ghemini Technologies and Mobil Solar Energy Corporation. His work in these organizations has contributed to the advancement of technologies related to crystal growth and semiconductor materials.
Collaborations
Vernon has collaborated with notable individuals in his field, including Chandra P. Khattak and Frederick Schmid. These collaborations have further enriched his research and development efforts.
Conclusion
Vernon E. White's innovative work in gallium arsenide crystal growth has made a significant impact on the field of semiconductor technology. His patents reflect a commitment to advancing the capabilities of crystal production, which is crucial for various electronic applications.