Arthur R Clawson

Title: Arthur R. Clawson: Innovating in Semiconductor Technology

Introduction

Arthur R. Clawson, an accomplished inventor based in San Diego, California, holds a remarkable portfolio of four patents. His contributions primarily focus on advancing semiconductor technologies, particularly in the field of InP (indium phosphide) substrates, which are critical for various electronic applications. Clawson's work has positioned him as a significant figure in the innovation landscape associated with the United States Navy.

Latest Patents

One of Clawson's latest patents, titled "Thermally-activated vapor etchant for InP," presents an innovative method where vapor from liquid ethylene dibromide (EDB) outperforms traditional anhydrous HCl in gas phase etching of InP substrates during Metalorganic Vapor Phase Epitaxy (MOVPE). This technique facilitates a cleaner substrate surface essential for the growth of InP and InGaAs epilayers. The patent emphasizes the relationship between etch rate, surface morphology, and gas phase reactions above the heated substrate.

Another significant invention by Clawson is a patented process for creating heterojunction source-drain insulated gate field-effect transistors. This invention aims to enhance the gain-bandwidth products at microwave frequencies. By employing a semi-insulating InP substrate, combined with a ternary alloy layer of p-type Ga.sub.0.47 In.sub.0.53 As, and through innovative shaping of the substrate for contact material, Clawson's method provides a significant leap in the efficiency of microwave components.

Career Highlights

Clawson's career is marked by his tenure with the United States of America, as represented by the Secretary of the Navy. His research and development efforts in semiconductor technology have not only advanced the capabilities of various electronic devices but have also contributed to national defense applications. Clawson's patents reflect a deep understanding of materials science and engineering principles, leading to practical solutions in high-frequency electronics.

Collaborations

Throughout his innovative journey, Arthur R. Clawson has collaborated with prominent colleagues, including Herman H. Wieder and Wing Y Lum. These partnerships have allowed for the exchange of ideas and expertise, further enhancing the quality and impact of his inventions in the field of semiconductors.

Conclusion

Arthur R. Clawson exemplifies the spirit of innovation in semiconductor technology through his patents and collaborations. His work continues to shape the future of electronic devices, particularly in applications requiring high performance and reliability. With such a strong foundation in research and development, Clawson remains a noteworthy figure among inventors making strides in technological advancements.