Aaron Littlejohn

Title: Innovations of Aaron Littlejohn in Magnetic Memory Devices

Introduction

Aaron Littlejohn is an accomplished inventor based in Portland, Oregon. He has made significant contributions to the field of magnetic memory devices, holding two patents that showcase his innovative approach to technology. His work is primarily associated with Intel Corporation, where he collaborates with other talented professionals.

Latest Patents

Littlejohn's latest patents include advancements in magnetic memory devices and methods of fabrication. The first patent describes a memory device that consists of a first electrode, a second electrode, and a magnetic tunnel junction (MTJ) positioned between them. This MTJ features a fixed magnet, a free magnet, and a tunnel barrier separating the two magnets. Additionally, it incorporates a conductive layer with a metallic dopant, which increases in concentration with distance from the interface between the free magnet and the conductive layer. A capping layer is also included between the conductive layer and the second electrode.

The second patent focuses on magnetic memory devices with an enhanced tunnel magnetoresistance ratio (TMR). This device comprises a first electrode, a conductive layer made of iridium above the first electrode, and a magnetic junction situated on the conductive layer. The magnetic junction consists of a magnetic structure that includes a cobalt layer, a non-magnetic layer made of platinum or tungsten, and another cobalt layer. Furthermore, it features an anti-ferromagnetic layer on the magnetic structure, a fixed magnet above this layer, a free magnet above the fixed magnet, and a tunnel barrier between the two magnets.

Career Highlights

Throughout his career, Aaron Littlejohn has demonstrated a commitment to advancing technology in the field of magnetic memory. His innovative patents reflect his expertise and dedication to improving memory devices. Working at Intel Corporation has provided him with the platform to develop and refine his ideas.

Collaborations

Littlejohn collaborates with talented colleagues, including Daniel Ouellette and Christopher J. Wiegand. Their combined efforts contribute to the success of their projects and the advancement of technology in their field.

Conclusion

Aaron Littlejohn's contributions to magnetic memory devices highlight his innovative spirit and technical expertise. His patents represent significant advancements in the field, showcasing the potential for future developments in memory technology.