N. Tanabe, T. Matsuki, S. Saitoh, T. Takeuchi, S. Kobayashi, T. Nakajima, Y. Maejima, Y. Hayashi, K. Amanuma, T. Hase, Y. Miyasaka, T. Kunio
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引用次数: 14
Abstract
A ferroelectric capacitor over bit-line (F-COB) cell is proposed for high density nonvolatile ferroelectric memories (NVFRAMs). This memory cell with 0.7 /spl mu/m design rule was successfully fabricated using a newly-developed fabrication process, combining CMP and MOCVD techniques. Good ferroelectric properties of storage capacitor, having a remanent polarization of 15 /spl mu/C/cm/sup 2/ and leakage current density of 10/sup -6/ A/cm/sup 2/, have been realized without degradation in CMOS characteristics.