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AN MTJ MRAM CELL, AN ARRAY OF MTJ MRAM CELLS, AND A METHOD OF FORMING AN MTJ MRAM CELL
AN MTJ MRAM CELL, AN ARRAY OF MTJ MRAM CELLS, AND A METHOD OF FORMING AN MTJ MRAM CELL
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机译:MTJ MRAM细胞,MTJ MRAM细胞阵列以及形成MTJ MRAM细胞的方法
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摘要
An MTJ MRAM cell is formed between ultra-thin orthogonal word and bit lines of high conductivity material whose thickness is less than 100 nm. Lines of this thickness produce switching magnetic fields at the cell free layer that are enhanced by a factor of approximately two for a given current. The fabrication of a cell with such thin lines is actually simplified as a result of the thinner depositions because the fabrication process eliminates the necessity of removing material by CMP during patterning and polishing, thereby producing uniform spacing between the lines and the cell free layer.
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