Carl I Pettiford

Title: Innovations of Carl I Pettiford

Introduction

Carl I Pettiford is a notable inventor based in Beavercreek, OH (US). He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work primarily focuses on enhancing the performance and cost-effectiveness of semiconductor devices.

Latest Patents

Pettiford's latest patents include the "Complementary heterostructure integrated single metal transistor apparatus." This invention discloses an enhancement mode periodic table group III-IV semiconductor field-effect transistor complementary pair device. The device features single metallization for ohmic and Schottky barrier contacts, a permanent non-photosensitive passivation layer, and gate elements designed for optimal microwave spectrum electrical characteristics. The complementary pair is fabricated from undoped semiconductor materials in a layered wafer structure, selectively doped by ion implantation to create both p-channel and n-channel transistors. This innovation promises reduced fabrication costs, increased dimensional accuracy, and state-of-the-art electrical performance.

Another significant patent is the "Complementary heterostructure integrated single metal transistor fabrication method." This method describes the fabrication of a periodic table group III-IV metal semiconductor metal field-effect enhancement mode complementary transistor pair device, typically made from gallium arsenide materials. The fabrication process utilizes initially undoped semiconductor materials, single metallization for contacts, and an inorganic dielectric material layer for non-photosensitive masking. The invention employs selective ion implantations and a combined optical and electron beam lithographic process, resulting in a complementary pair that boasts reduced fabrication costs and low electrical energy operating requirements.

Career Highlights

Carl I Pettiford works for the United States of America as represented by the Secretary of the Air Force. His role involves advancing semiconductor technologies that are crucial for various applications in defense and aerospace.

Collaborations

Pettiford has collaborated with notable colleagues, including Christopher A Bozada and Gregory C DeSalvo. Their combined expertise has contributed to the successful development of innovative semiconductor solutions.

Conclusion

Carl I Pettiford's contributions to semiconductor technology through his patents and collaborations highlight his significant role in advancing this critical field. His work continues to influence the development of efficient and high-performance semiconductor devices.