Method for fabricating memory cell of magnetoresistive random access memory
Abstract:
A method for fabricating memory cell of magnetoresistive RAM includes forming a memory stack structure on a first electrode layer. The memory stack structure includes a SAF layer to serve as a pinned layer; a magnetic free layer and a barrier layer sandwiched between the SAF layer and the magnetic free layer. A second electrode layer is then formed on the memory stack structure. The SAF layer includes a first magnetic layer, a second magnetic layer, and a spacer layer of a first metal element sandwiched between the first magnetic layer and the second magnetic layer. The first metal element is phase separated from a second metal element of the first and second magnetic layers, and the second metal element of the first magnetic layer and the second magnetic layer interfaces with the spacer layer.
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