Hans Wimpfheimer

Title: The Innovations of Hans Wimpfheimer

Introduction

Hans Wimpfheimer is a notable inventor based in Poughkeepsie, NY (US). He has made significant contributions to the field of semiconductor technology, holding a total of 3 patents. His work primarily focuses on methods for fabricating tantalum semiconductor contacts, which are essential for improving the performance of silicon semiconductor devices.

Latest Patents

Wimpfheimer's latest patents include a method for fabricating tantalum semiconductor contacts. This innovation involves a silicon semiconductor device that incorporates tantalum, particularly useful for creating Schottky barrier diodes with a low barrier height. The method entails precleaning the silicon substrate before depositing the tantalum, applying the tantalum at low pressure and low substrate temperature to prevent oxidation, and sintering the contact to minimize interfacial charges and films between the silicon and tantalum. Additionally, when using a metal that reacts with silicon, such as aluminum, a layer of chrome must be deposited between the tantalum and aluminum to ensure optimal performance.

Career Highlights

Wimpfheimer is currently employed at International Business Machines Corporation (IBM), where he continues to innovate in the semiconductor field. His expertise and contributions have been instrumental in advancing semiconductor technology.

Collaborations

Throughout his career, Wimpfheimer has collaborated with notable colleagues, including Majid Ghafghaichi and Hormazdyar M Dalal. These collaborations have further enriched his work and contributed to the development of cutting-edge technologies.

Conclusion

Hans Wimpfheimer's contributions to semiconductor technology through his patents and work at IBM highlight his significant role in the field. His innovative methods for fabricating tantalum semiconductor contacts are paving the way for advancements in electronic devices.