Magnetic tunnel junctions

US9478735B1 · kind B1 · utility

Assignee

• Micron Technology, Inc. · US

Inventors

• Wei-Su Chen · Hsinchu, TW
• Witold Kula · Gilroy, US
• Jonathan D. Harms · Boise, US
• Sunil Srinivasa Murthy · Chennai, IN

Key dates

• Filing date: Jun 22, 2015
• Grant date: Oct 25, 2016
• Expiry date: Jun 22, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10N50/10

Abstract

Some embodiments include a magnetic tunnel junction which has a conductive first magnetic electrode containing magnetic recording material, a conductive second magnetic electrode spaced from the first electrode and containing magnetic reference material, and a non-magnetic insulator material between the first and second electrodes. The magnetic recording material of the first electrode includes a set having an iridium-containing region between a pair of non-iridium-containing regions. In some embodiments, the non-iridium-containing regions are cobalt-containing regions.