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    • 8. 发明专利
    • Semiconductor device, and its manufacturing method
    • 半导体器件及其制造方法
    • JP2008091693A
    • 2008-04-17
    • JP2006271900
    • 2006-10-03
    • Toshiba Corp株式会社東芝
    • YAMAZAKI SOICHIYAMAKAWA KOJI
    • H01L21/8246H01L27/105
    • H01L27/11507H01G4/085H01G4/33H01L21/31691H01L27/11502H01L28/55H01L28/65
    • PROBLEM TO BE SOLVED: To provide a high-reliability semiconductor device which lowers the coercive electric field of a ferroelectric capacitor, and to provide a manufacturing method for such a semiconductor device.
      SOLUTION: The semiconductor device includes insulating films 207 to 210 attached on a semiconductor substrate 201, bottom contacts 211 and 213 formed on the insulating films, a first bottom electrode 215 formed on and connected to the bottom contact, a second bottom electrode 216 which is attached on the first bottom electrode and consists of the SRO film, a ferroelectric film 217 which is formed on the second bottom electrode and consists of a crystal with the grain size of 30 to 150 nm, a ferroelectric capacitor FC including a top electrode 218 attached on the ferroelectric film, and a wiring 224 connected with the top electrode.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供降低铁电电容器的矫顽电场的高可靠性半导体器件,并提供这种半导体器件的制造方法。 解决方案:半导体器件包括安装在半导体衬底201上的绝缘膜207至210,形成在绝缘膜上的底部触点211和213,形成在底部触点上并连接到底部触点的第一底部电极215,第二底部电极 216,其安装在第一底部电极上并由SRO膜构成,铁电体膜217形成在第二底部电极上,由晶体尺寸为30至150nm的晶体构成,铁电电容器FC包括顶部 连接在铁电体膜上的电极218和与顶部电极连接的布线224。 版权所有(C)2008,JPO&INPIT