Patent 9691816 was granted and assigned to SAMSUNG ELECTRONICS CO., LTD. on June, 2017 by the United States Patent and Trademark Office.
Magnetic memory devices are provided. A magnetic memory device includes a Magnetic Tunnel Junction (MTJ) structure on a contact. Moreover, the magnetic memory device includes an insulating structure and an electrode between the MTJ structure and the contact. In some embodiments, a first contact area of the electrode with the MTJ structure is smaller than a second contact area of the insulating structure with the MTJ structure.