发明名称 NON-VOLATILE MEMORY DEVICE AND METHOD OF MANUFACTURING NON-VOLATILE MEMORY DEVICE
摘要 A non-volatile memory device including a ferroelectric capacitor is disclosed. A method of manufacturing a non-volatile memory device including a ferroelectric capacitor is also disclosed. A first electrode is formed on an insulating film provided on a semiconductor substrate. A first ferroelectric film is formed on the first electrode. The first ferroelectric film has a convexo-concave surface portion. A second ferroelectric film is formed on the first ferroelectric film so as to bury the convexo-concave surface portion. The second ferroelectric film has a surface flatter than that of the first ferroelectric film. A second electrode is formed on the second ferroelectric film. A protective film is formed at least on a portion of an upper surface of the second electrode. The protective film serves as a barrier against hydrogen.
申请公布号 US2008121957(A1) 申请公布日期 2008.05.29
申请号 US20070943212 申请日期 2007.11.20
申请人 KABUSHIKI KAISHA TOSHIBA 发明人 KANAYA HIROYUKI
分类号 H01L27/105;H01L21/8239 主分类号 H01L27/105
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