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Wiley Advanced Electronic Materials 11(4)
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    초록·키워드

    Abstract A new type of ferroelectric memory device with high reliability and complementary metal‐oxide‐semiconductor (CMOS) compatibility characteristics is an important condition for achieving integrated memory and computing chips. Here, 3D stacked ferroelectric memory devices based on ferroelectric materials of HfO 2 are fabricated. The device exhibits high speed (50 ns), low read voltage (0.5 V), and great reliability with no substantial degradation after 10 10 cycles and a 10‐years data retention at 85 °C. The IMP and NAND logic are achieved with stable memory window (>200 mV) across the vertical devices’ interconnection. On this basis, combining with the traditional CMOS logic device, multiple combination logic functions containing NOT, AND, and NOR are achieved by simulation. The collaboration of devices in the vertical direction providing the possibility of combining multi‐bit logic in memory functions and paves the way for the implementation of high‐density, high‐reliability, and low‐energy consumption computing‐in‐memory chips compatible with the CMOS technology.

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