发明名称 |
Magnetic shielding of perpendicular STT-MRAM |
摘要 |
A memory having an array of perpendicular spin-transfer torque (STT) magnetic random access memory (MRAM) cells, wherein each cell has a magnetic layer stack. A magnetic shield disposed between the cells and having a minimum height of at least the height of the magnetic layer stacks. |
申请公布号 |
US9564403(B2) |
申请公布日期 |
2017.02.07 |
申请号 |
US201314038959 |
申请日期 |
2013.09.27 |
申请人 |
Infineon Technologies AG |
发明人 |
Allinger Robert;Hofmann Karl;Knobloch Klaus;Strenz Robert |
分类号 |
H01L27/22;H01L23/552;H01L43/12;H01L43/02;H01L43/08 |
主分类号 |
H01L27/22 |
代理机构 |
Schiff Hardin LLP |
代理人 |
Schiff Hardin LLP |
主权项 |
1. A memory comprising:
an array of perpendicular spin-transfer torque (STT) magnetic random access memory (MRAM) cells, wherein each cell has a magnetic layer stack; a magnetic shield disposed between the cells and having a minimum height of at least the height of the magnetic layer stacks to thereby shield the cells from memory-external magnetic fields; and an isolation layer disposed directly on the magnetic shield and a top electrode. |
地址 |
Neubiberg DE |