| 摘要 |
A method of manufacturing a magnetic tunneling junction device, includes: forming a magnetic pinned layer over a substrate; forming an insulating film over the magnetic pinned layer; forming a recess in the insulating film, the recess reaching a bottom of the insulating film; forming a tunneling insulating film over a bottom and side walls of the recess and over the insulating film; forming a magnetic free layer over the tunneling insulating film; forming an upper electrode conductive film on the magnetic free layer; and oxidizing a portion of the magnetic free layer along the side walls of the recess.
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