Charles S Duncan

Title: The Innovative Contributions of Charles S Duncan

Introduction

Charles S Duncan is a notable inventor based in Penn Hills, PA (US). He has made significant contributions to the field of materials science, particularly in the area of dendritic web growth. With a total of 7 patents to his name, Duncan's work has advanced the understanding and application of crystalline materials.

Latest Patents

Duncan's latest patents include innovative designs that enhance the efficiency of dendritic web growth. One of his notable inventions is a lid for improved dendritic web growth. This lid is designed for a susceptor where a crystalline material is melted by induction heating. It allows for the formation of a pool of molten material from which a dendritic web of essentially a single crystal is pulled through an elongated slot. The lid features a pair of generally round openings adjacent to the ends of the slot, with grooves extending from the outboard surface to the inboard surface. This design helps produce uniform radiational heat loss, reducing thermal stresses and facilitating the growth of wider webs at a greater withdrawal rate.

Another significant patent is the barrier design for crucibles used in silicon dendritic web growth. This invention introduces a multiple barrier design that separates the feed compartment from the growth compartment in crucibles. The design minimizes thermal interaction between the two compartments, allowing for larger replenishment rates without negatively impacting crystal growth. The novelty of this invention lies in the primary and secondary barriers being spaced apart, creating a space devoid of liquid silicon, which reduces thermal conductance.

Career Highlights

Throughout his career, Charles S Duncan has worked with prominent organizations, including Westinghouse Electric Corporation and the United States of America as represented by the United States. His work in these institutions has contributed to advancements in technology and materials science.

Collaborations

Duncan has collaborated with several notable individuals in his field, including Paul A Piotrowski and Edgar L Kochka. These collaborations have further enriched his research and innovations.

Conclusion

Charles S Duncan's contributions to the field of materials science through his patents and innovative designs have significantly impacted dendritic web growth technology. His work continues to inspire advancements in the industry.