Lance B Cook

Title: Lance B Cook: Innovator in Chemical Mechanical Polishing Technology

Introduction

Lance B Cook is a notable inventor based in Austin, TX, who has made significant contributions to the field of chemical mechanical polishing (CMP). His innovative work focuses on improving the efficiency and effectiveness of polishing copper layers, which is crucial in the semiconductor industry.

Latest Patents

Lance B Cook holds a patent for a "Chemical mechanical polishing (CMP) slurry for copper and method of use." This patent describes a method for polishing a copper layer by utilizing a specially formulated slurry. The slurry contains an oxidizing agent such as hydrogen peroxide, a carboxylate salt like ammonium citrate, and an abrasive component such as alumina. This combination allows for a high rate of copper removal while minimizing pitting and corrosion, ultimately achieving good planarity for copper interconnects. Additionally, the slurry is environmentally sound compared to other prior art slurries, making it a sustainable choice for manufacturers.

Career Highlights

Lance B Cook is associated with Motorola Corporation, where he has applied his expertise in CMP technology. His work has contributed to advancements in the manufacturing processes of semiconductor devices, enhancing their electrical performance and reliability.

Collaborations

Throughout his career, Lance has collaborated with talented individuals such as David K Watts and Jason Gomez. These collaborations have fostered innovation and have been instrumental in the development of new technologies in the field.

Conclusion

Lance B Cook's contributions to chemical mechanical polishing technology have made a significant impact on the semiconductor industry. His innovative slurry formulation not only improves the polishing process but also addresses environmental concerns, showcasing his commitment to sustainable practices.