Magnetic memory, driving method thereof, and manufacturing method thereof

A manufacturing method of a magnetic memory, comprising:

• forming a plurality of lead structures on a substrate, wherein the lead structures do not intersect each other;
• forming an insulation layer on the substrate, wherein the insulation layer covers the lead structures;
• forming a plurality of first magnetic metal structures on the insulation layer, wherein each of the first magnetic metal structures is respectively disposed between adjacent two of the lead structures;
• performing a magnetization process to the first magnetic metal structures so that a magnetic coupling force direction is produced by each of the first magnetic metal structures;
• and
• forming a second magnetic metal structure on the insulation layer, wherein the second magnetic metal structure covers the first magnetic metal structures and spans over the lead structures, and an extension direction of the second magnetic metal structure is different from the magnetic coupling force direction;
• wherein a structure formed by the first magnetic metal structures and the second magnetic metal structure is divided into a plurality of magnetic memory cells connected with each other by dispositions of the lead structures, and each of the magnetic memory cells has a magnetic domain and a domain wall adjacent to the magnetic domain.

A manufacturing method of a magnetic memory, comprising:

• forming a plurality of lead structures on a substrate, wherein the lead structures do not intersect each other;
• forming an insulation layer on the substrate, wherein the insulation layer covers the lead structures;
• and
• forming a magnetic metal structure on the insulation layer, wherein the magnetic metal structure spans over the lead structures,
• wherein the magnetic metal structure is divided into a plurality of magnetic memory cells connected with each other by dispositions of the lead structures, and each of the magnetic memory cells has a magnetic domain and a domain wall adjacent to the magnetic domain.