John Haigh

Title: The Innovative Contributions of John Haigh

Introduction

John Haigh is a notable inventor based in Ipswich, GB, recognized for his significant contributions to the field of semiconductor technology. With a total of 3 patents, Haigh has developed innovative methods that enhance the production and purification of semiconductor materials.

Latest Patents

One of Haigh's latest patents involves an etching method where materials, whose elemental constituents are selected from groups III and V of the Periodic Table, are photochemically etched in a reducing environment. This etching process is carried out by illuminating a halogenated hydrocarbon gas, such as methyl iodide, with ultra-violet light in the vicinity of the material. The reducing environment is maintained by the presence of sufficient hydrogen to suppress any oxygen that may leak into the system. This method is particularly useful in the production of opto-electronic devices.

Another significant patent focuses on the purification of semiconductor materials. In this process, a Group III element Q, selected from gallium, indium, and thallium, containing a Group VI element X, selected from oxygen, sulphur, selenium, and tellurium as an impurity, can be purified by adding an element M capable of forming a stable solid compound with X. This stable compound is substantially insoluble in liquid Q, allowing for its separation and the use of purified Q in the epitaxial growth of semiconductor materials, such as indium phosphide.

Career Highlights

Throughout his career, John Haigh has worked with prominent organizations, including the Post Office and British Telecommunications Corporation. His experience in these companies has contributed to his expertise in the field of semiconductor technology.

Collaborations

Haigh has collaborated with notable individuals in his field, including Marc M Faktor and Martin R Aylett. These collaborations have likely enriched his work and led to further advancements in his inventions.

Conclusion

John Haigh's innovative patents and career achievements highlight his significant role in the advancement of semiconductor technology. His contributions continue to influence the industry and pave the way for future innovations.