Rolf Ruthardt

Title: Rolf Ruthardt: Innovator in Semiconductor Technology

Introduction

Rolf Ruthardt is a notable inventor based in Hanau, Germany. He has made significant contributions to the field of semiconductor technology, particularly in the development of bonding layers for semiconductor elements. With a total of 2 patents, his work has advanced the efficiency and reliability of semiconductor connections.

Latest Patents

Ruthardt's latest patents focus on methods for creating metallic support carriers for semiconductor elements. One of his innovations involves a bonding layer designed to improve the connection of wires to semiconductor chips. This bonding layer is formed as a spongy, microporous structure, which is applied to specific positions on contact strips using screen printing. The bonding layer is then secured to the metallic connecting strip through a diffusion zone. The materials used in this bonding layer include metals such as gold, palladium, silver, aluminum, and copper, or alloys of these metals. The layer thickness ranges from 2 to 30 micrometers, with a preference for 3 to 10 micrometers. After the screen printing process, the organic carrier is eliminated through heating, which transforms the metal into a spongy microporous structure.

Career Highlights

Rolf Ruthardt is associated with W.C. Heraeus GmbH, a company known for its expertise in precious metals and advanced materials. His work at the company has been instrumental in pushing the boundaries of semiconductor technology.

Collaborations

Ruthardt has collaborated with notable colleagues such as Gerhard Mai and Franz Kummer. Their combined efforts have contributed to the advancements in the field of semiconductor bonding technologies.

Conclusion

Rolf Ruthardt's innovative work in semiconductor technology has led to significant advancements in the bonding processes used in semiconductor elements. His patents reflect a commitment to improving the efficiency and reliability of electronic components.