Abstract:Recent progress in ferroelectric random access memory (FeRAM) technology is reviewed from viewpoints of materials, devices, and circuits. First, insulating and ferroelectric properties of pure and Mn-substituted BiFeO 3 thin films are discussed. It is shown that Mn substitution at the Fe site is effective in improving the breakdown characteristics of the films and obtaining saturated polarization vs electric field (P-E) hysteresis loops at room temperature. Then, memory characteristics of FET-type FeRAM are di… Show more
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