David E A Smith

Title: The Innovations of David E A Smith

Introduction

David E A Smith is a notable inventor based in San Mateo, California. He has made significant contributions to the field of crystal growth technology, holding a total of four patents. His work focuses on improving the processes involved in single crystal growth, particularly through the Czochralski method.

Latest Patents

One of his latest patents is titled "Weir method for improved single crystal growth in a continuous Czochralski process." This method discloses a technique for continuous crystal growing, where one or more crystal ingots are pulled into a growth chamber from a crystal/melt interface defined in a crucible containing molten crystalline material that is continuously replenished by crystalline feedstock. The method emphasizes the separation of molten crystalline material, controlling its flow, and defining an annular space with respect to the sidewalls of a heat shield in the chamber.

Another significant patent is "Weir design providing optimal purge gas flow, melt control, and temperature stabilization for improved single crystal growth in a continuous Czochralski process." In this patent, a weir is extended vertically to create an optimal annular gap between the top of the weir and the underside of a super-adjacent heat shield. This design allows for a high-velocity stream of argon gas to be directed from the growth region to the melt region, effectively eliminating the transport of airborne particles from the melt region to the growth region.

Career Highlights

David E A Smith has worked with Solaicx, Inc., where he applied his expertise in crystal growth technology. His innovative approaches have contributed to advancements in the field, enhancing the efficiency and quality of single crystal production.

Collaborations

Throughout his career, David has collaborated with notable individuals such as David L Bender and Anton R Fleig. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

David E A Smith's contributions to the field of crystal growth technology are significant and impactful. His patents reflect a deep understanding of the complexities involved in the Czochralski process, and his collaborations with other professionals further enhance his innovative work.