Company Filing History:
Years Active: 2000-2002
Title: **Leon Ashley: Innovator in Copper Interconnections Technology**
Introduction
Leon Ashley, an accomplished inventor based in Danbury, CT, has made significant contributions to the field of semiconductor technology. With a commendable portfolio of three patents, he is recognized for his innovative approaches to improving the performance and reliability of copper interconnections in electronic devices.
Latest Patents
Among his latest innovations is the patent titled "Copper interconnections with enhanced electromigration resistance and reduced defect sensitivity and method of forming same." This patent details a method for creating sub-half-micron copper interconnections that exhibit improved electromigration and corrosion resistance. The process employs a double damascene technique utilizing electroplated copper, wherein the seed layer is transformed into an intermetallic layer. Additionally, Ashley’s method incorporates a layer of copper intermetallics combined with hafnium, lanthanum, zirconium, or tin to enhance electromigration resistance and minimize defect sensitivity. Furthermore, he provides a method for forming a protective cap atop copper lines, ensuring improved corrosion resistance by fully covering the surface. The inclusion of carbon atoms in copper interstitial positions is also described, further enhancing the reliability of the interconnections.
Career Highlights
Leon Ashley plays a pivotal role at International Business Machines Corporation (IBM), where his expertise in semiconductor materials and processes is invaluable to ongoing research and development initiatives. His commitment to innovation has led to the advancement of technologies that are critical for modern electronics.
Collaborations
Throughout his career, Ashley has collaborated with notable professionals such as Hormazdyar M. Dalal and Du Binh Nguyen. These partnerships have enabled him to leverage diverse skills and insights, enhancing the overall impact of their research endeavors within the field.
Conclusion
Leon Ashley’s contributions to the realm of semiconductor technology underscore the importance of innovation in improving the performance and reliability of electronic devices. His patents not only reflect his inventive spirit but also position him as a significant figure in advancing technologies that will shape the future of the industry.