This inventor holds 3 USPTO granted patents and 2 published patent applications and 3 EPO patents. Top assignee: Honeywell International Inc.. Active years: 2017.
Company Filing History:
Years Active: 2017
Title: David S. Willits: Innovator in pH Sensor Technology
Introduction
David S. Willits is a notable inventor based in Long Lake, MN (US). He has made significant contributions to the field of sensor technology, particularly in the development of pH sensors. With a total of 3 patents to his name, Willits continues to push the boundaries of innovation in this area.
Latest Patents
One of Willits' latest patents is a pH sensor with a bonding agent disposed in a pattern. This invention features a substrate and an ion-sensitive field-effect transistor (ISFET) die. The ISFET die is designed to be exposed to a medium, allowing it to output a signal related to the pH level of that medium. The bonding agent material is strategically placed between the ISFET die and the substrate in a specific pattern to enhance performance.
Another significant patent by Willits is a pH sensor configured to maintain the piezoresistance of the ISFET die over varying pressure and temperature ranges. In this design, the ISFET die is bonded to the substrate with a bonding layer that adapts to environmental changes. This innovation ensures that the change in piezoresistance of the ISFET die remains minimal, specifically less than 0.5%, despite fluctuations in pressure and temperature.
Career Highlights
David S. Willits is currently employed at Honeywell International Inc., where he applies his expertise in sensor technology. His work has been instrumental in advancing the capabilities of pH sensors, making them more reliable and efficient for various applications.
Collaborations
Throughout his career, Willits has collaborated with notable colleagues, including Donald Horkheimer and Paul S. Fechner. These partnerships have contributed to the successful development of innovative technologies in the field.
Conclusion
David S. Willits stands out as a key figure in the realm of pH sensor innovation. His patents reflect a commitment to enhancing sensor technology, ensuring accuracy and reliability in various applications. His contributions continue to shape the future of this important field.