Abstract

Future semiconductor memories must increase its memory capacity while increasing operation speed and decreasing power consumption. Especially from the perspective of decreasing the power consumption of the system, the improvement in performance of nonvolatile memories is in strong demand. From this background, we introduce novel types of nonvolatile semiconductor memory, which uses storage information other than the conventional charge of the electrons and we also introduce the progress of stacked type vertical NAND type memories for large data capacity. In addition, from the perspective of super low power consumption systems, we discuss the trend of nonvolatile logic, which combine Spintronic devices with semiconductor CMOS logic in order to realize higher level of low power system.

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