Walter D Parmantie

Title: Innovations of Walter D. Parmantie

Introduction

Walter D. Parmantie is a notable inventor based in San Antonio, Texas. He has made significant contributions to the field of integrated circuit manufacturing. With a total of four patents to his name, Parmantie's work has advanced the reliability and efficiency of electronic devices.

Latest Patents

One of Parmantie's latest patents involves an integrated circuit manufacturing method that utilizes chemical-mechanical polishing (CMP) to planarize a nonplanar submetal silica dielectric layer. This method enhances the manufacturing process by cleaning the planarized device with an aqueous solution of ammonium hydroxide and citric acid. The process effectively etches exposed hydrated silica, freeing embedded contaminants from the CMP slurry, which are then removed in an aqueous rinse. This innovation leads to higher yields and more reliable integrated circuits.

Another significant patent focuses on methods for fabricating anti-fuse structures. This method aims to reduce variations in programming voltage within an anti-fuse structure on an integrated circuit wafer. By rendering a selected anti-fuse area susceptible to fuse link formation, Parmantie's method improves the efficiency of programming voltages applied between metal layers. This advancement is crucial for enhancing the performance of integrated circuits.

Career Highlights

Walter D. Parmantie has built a successful career at VLSI Technology, Inc., where he has contributed to various innovative projects. His expertise in integrated circuit technology has positioned him as a key figure in the industry. Parmantie's work has not only advanced manufacturing techniques but has also paved the way for future innovations in electronic devices.

Collaborations

Throughout his career, Parmantie has collaborated with notable colleagues, including Landon B. Vines and Craig A. Bellows. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Walter D. Parmantie's contributions to integrated circuit manufacturing have significantly impacted the electronics industry. His innovative patents and collaborative efforts continue to drive advancements in technology.