| 摘要 |
Blocks are connected to a read bit line. One block has MTJ elements which are connected to each other in series between the read bit line and a ground terminal. A MTJ elements are superposed on, e.g., a semiconductor substrate. A read bit line is arranged on the superposed MTJ elements. A write word line extending in a X-direction and a write bit line extending in a Y-direction are arranged in the vicinity of the MTJ elements in the block.
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