Johannes Bühler

Title: Innovations of Johannes Bühler in Pressure Sensor Technology

Introduction

Johannes Bühler is an innovative inventor hailing from Uster, Switzerland. He has made significant contributions to the field of pressure sensors, boasting a total of two patents that reflect his expertise and dedication to advancing sensor technology.

Latest Patents

Bühler's latest patents showcase advanced methodologies for manufacturing integrated pressure sensors. The first patent, titled "Method for manufacturing an integrated pressure sensor," describes a differential pressure sensor that utilizes a membrane positioned over a cavity on a semiconductor substrate. This design features a lid layer with an access opening that allows for interaction with the membrane's top side. A channel extending laterally from the cavity intersects with a bore, which is formed by laser drilling from the substrate’s bottom side, ultimately providing access to the membrane's underside.

His second patent, "Pressure sensor having a chamber and a method for fabricating the same," focuses on manufacturing pressure sensors by joining two wafers. The first wafer incorporates CMOS circuitry, while the second is a silicon-on-insulator (SOI) wafer. A recess in the first wafer's top layer, covered by the silicon from the second wafer, forms a cavity. Additionally, part or all of the second wafer's substrate is removed to create a membrane, effectively integrating standard CMOS processes for the circuitry.

Career Highlights

Throughout his career, Johannes Bühler has gained valuable experience working with notable companies in the industry. He has been employed by Sensirion Holding AG and Sensirion AG, where he has applied his skills in sensor technology to develop leading-edge products.

Collaborations

Bühler has worked alongside talented individuals such as Felix Mayer and Matthias Streiff. These collaborations have enabled him to innovate and push the boundaries of sensor technology, contributing to the development of advanced pressure sensing solutions.

Conclusion

In conclusion, Johannes Bühler's contributions to the field of pressure sensors are commendable and underscore his role as a forward-thinking inventor. His innovative designs and collaboration with esteemed professionals have solidified his position in the industry, paving the way for future advancements in sensor technology.