Location History:
- Adliswil, SE (2003)
- New York, NY (US) (2011)
- Rueschlikon, CH (2014 - 2017)
- Adliswil, CH (1993 - 2018)
Company Filing History:
Years Active: 1993-2025
Title: The Innovative Contributions of Rolf Allenspach
Introduction
Rolf Allenspach is a notable inventor based in Adliswil, Switzerland. He has made significant advancements in the field of magnetic technology, holding an impressive portfolio of 24 patents. His contributions have had a lasting impact on the development of spin-transfer torque magnetic tunnel junctions, among other innovations.
Latest Patents
One of Rolf Allenspach’s latest patents is the "Spin transfer torque magnetic tunnel junction with off-centered current flow." This patent describes a sophisticated structure that includes a layer stack featuring a pinned magnetic layer and a free magnetic layer, separated by an insulating barrier layer. Each magnetic layer possesses an out-of-plane magnetization orientation. The innovative junction allows a spin-polarized current generated from one magnetic layer to flow to the other, facilitating an asymmetrical switching of the magnetization orientation of the free layer. Noteworthy is the junction's ability to allow off-centered spin-polarized current flow toward an edge of the stack, enabling unique operations through related devices and methodologies.
Career Highlights
Rolf Allenspach has spent a significant portion of his career with the International Business Machines Corporation (IBM), where he has contributed to advancing research in magnetic technologies. His work focuses on developing innovative methods and devices that utilize spin-polarized currents for effective control of magnetization states in magnetic layers.
Collaborations
Throughout his career, Rolf Allenspach has worked alongside esteemed coworkers such as Jonathan Zanhong Sun and Stuart Stephen Papworth Parkin. Together, they have pushed the boundaries of knowledge in their field, collectively working on projects that harness the principles of magnetism and spintronics.
Conclusion
Rolf Allenspach’s contributions to innovation in magnetic technologies exemplify the importance of research and collaboration in the advancement of modern technology. With a strong patent portfolio and impactful collaborations, he continues to inspire the next generation of inventors and researchers in the field. His work not only enhances our understanding of spin-transfer technologies but also paves the way for future innovations.