Armand J Van Velthoven

Title: Armand J. Van Velthoven: Innovator in FET Technology

Introduction

Armand J. Van Velthoven is a talented inventor based in West Carrollton, OH, whose innovative work in field-effect transistors (FET) has contributed significantly to the advancements of semiconductor technology. With a portfolio encompassing three patents, Van Velthoven continues to impact the industry with his inventive designs and methodologies.

Latest Patents

Van Velthoven's latest patents revolve around the development of narrow channel FET technology. His patented work describes an FET comprising as many as three parallel channels with differing threshold voltages. The design features two outer channels with very low width-to-length (W/L) ratios, resulting in low drain-to-source currents. In one embodiment, the FET includes a central enhancement channel flanked by these low current depletion channels.

The fabrication process for this FET involves several intricate steps, such as forming an oxide mask through etching a window in the gate oxide over the active area of the device. This is followed by enhancement implanting the substrate through the window, which allows for precise control over the channel characteristics. The process further includes enlarging the window width by etching and performing depletion implanting to achieve specific concentrations below the enhancement implant. With the gate structure formed over the combined enhancement and depletion channels, a source and a drain span the ends of the channels, creating a sophisticated enhancement FET operating in parallel with a depletion FET. This inventive method is applicable to both silicon and metal gate technology, as well as for n-channel and p-channel devices.

Career Highlights

Armand J. Van Velthoven is currently associated with NCR Corporation, where he applies his expertise in semiconductor technology to drive innovation. His contributions to the field of FETs stand testament to his technical prowess and commitment to advancing electronic components.

Collaborations

Throughout his career, Van Velthoven has collaborated with esteemed colleagues, including Robert K. Jones and Tuh-Kai Koo. These collaborations have fostered an environment of shared knowledge and innovative thinking, further propelling advancements in FET technology.

Conclusion

Armand J. Van Velthoven remains a key figure in the realm of semiconductor innovations, with his patents demonstrating groundbreaking approaches to FET technology. His work continues to benefit the electronics industry, paving the way for more efficient and revolutionary electronic devices. As technology advances, the contributions of inventors like Van Velthoven become increasingly vital to shaping the future.