This inventor holds 2 USPTO granted patents. Top assignee: Motorola Corporation. Active years: 2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2003
Title: Innovations of David Weston Haggart, Jr.
Introduction
David Weston Haggart, Jr. is a notable inventor based in Scottsdale, AZ (US). He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work primarily focuses on methods that enhance the efficiency and effectiveness of chemical-mechanical polishing processes.
Latest Patents
Haggart's latest patents include a "Method for determining an endpoint and semiconductor wafer." This patent discloses a method for determining an endpoint during the chemical-mechanical polishing of a semiconductor wafer. The method involves depositing a second layer on a first layer to be polished, where the physical properties of the two layers differ. This difference allows for the detection of variations in physical properties, enabling the determination of an endpoint based on these variations.
Another significant patent is the "Method for chemical mechanical polishing (CMP) with altering the concentration of oxidizing agent in slurry." This innovation modifies the chemical mechanical polishing of a metal film at the surface of a substrate. It involves mixing a slurry precursor with an oxidizing agent to create a slurry with a predetermined concentration. The concentration is altered at the end of polishing to enhance endpointing, as the polishing rate is reduced.
Career Highlights
David Weston Haggart, Jr. is currently associated with Motorola Corporation, where he applies his expertise in semiconductor technology. His work has contributed to advancements in the field, particularly in improving the processes involved in semiconductor manufacturing.
Collaborations
Haggart has collaborated with notable colleagues, including John George Maltabes and Karl Emerson Mautz. These collaborations have likely fostered innovation and the sharing of ideas within the semiconductor industry.
Conclusion
David Weston Haggart, Jr. is a distinguished inventor whose contributions to semiconductor technology have made a significant impact. His innovative patents reflect his commitment to enhancing the efficiency of chemical-mechanical polishing processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile