Company Filing History:
Years Active: 2005-2006
Title: The Innovative Contributions of Darrell L. Simpson
Introduction
Darrell L. Simpson is a notable inventor based in Gotha, Florida. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing interconnect structures and improving chemical mechanical polishing processes.
Latest Patents
One of Darrell's latest patents is titled "Barrier layer for interconnect structures of a semiconductor wafer and method for depositing the barrier layer." This invention involves an interconnect structure that includes a tungsten plug deposited in a via or contact window. A barrier layer separates the tungsten plug from the dielectric material's surface, and this barrier layer is a composite of at least two films. The first film is a tungsten silicide film, while the second is a tungsten film. The barrier layer is deposited using a sputtering technique in a specialized deposition chamber.
Another significant patent is "Chemical mechanical polishing of dual orientation polycrystalline materials." This patent describes a CMP process that utilizes a chemically active slurry to control the oxidation rates of crystalline planes on a polycrystalline surface. The process aims to equilibrate material removal rates during polishing, enhancing the efficiency and effectiveness of the CMP process.
Career Highlights
Darrell L. Simpson is currently employed at Agere Systems Inc., where he continues to innovate in semiconductor technologies. His work has contributed to advancements in the manufacturing processes of semiconductor devices, making them more efficient and reliable.
Collaborations
Throughout his career, Darrell has collaborated with several talented individuals, including Michael J. Antonell and Jennifer A. Antonell. These collaborations have fostered a creative environment that encourages innovation and the development of new technologies.
Conclusion
Darrell L. Simpson's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative work continues to impact the industry positively.
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