This inventor holds 2 USPTO granted patents. Top assignees: International Business Machines Corporation, Siemens Aktiengesellschaft, Siemens Components, Inc.. Active years: 1997-1998.
Company Filing History:
2 out of 166,264 
1 out of 30,859 
1 out of 32 
Years Active: 1997-1998
Title: Bill Klaasen: Innovator in Semiconductor Technology
Introduction
Bill Klaasen is a notable inventor based in Underhills, Vermont, known for his contributions to semiconductor technology. He holds 2 patents that focus on advanced methods of manufacturing metal interconnect structures for integrated circuits. His work has significantly impacted the reliability and efficiency of semiconductor devices.
Latest Patents
Klaasen's latest patents include a method of manufacturing a multilayer interconnect structure for semiconductor integrated circuits. This innovative structure comprises a base layer of titanium, a second layer of titanium nitride, a third layer of an aluminum alloy, and a top layer of titanium nitride. All layers are deposited using in-situ deposition in an ultra-high vacuum deposition system, ensuring that the process occurs without disruption to the vacuum. The deposition of different layers is conducted at varying temperatures, which enhances the electromigration reliability of the structure. By depositing the aluminum alloy layer at temperatures exceeding 300°C, preferably between 350°C and 550°C, Klaasen has improved the performance and density of applications within integrated circuits.
Career Highlights
Throughout his career, Bill Klaasen has worked with prestigious companies such as IBM and Siemens Aktiengesellschaft. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and contribute to significant advancements in the field.
Collaborations
Klaasen has collaborated with notable professionals in the industry, including Pei-Ing Paul Lee and Bernd M Vollmer. These collaborations have further enriched his work and have led to innovative solutions in semiconductor manufacturing.
Conclusion
Bill Klaasen's contributions to semiconductor technology through his patents and collaborations have made a lasting impact on the industry. His innovative methods continue to enhance the reliability and efficiency of integrated circuits, showcasing his importance as an inventor in this field.