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    • 3. 发明专利
    • Semiconductor device and method of manufacturing the same
    • 半导体器件及其制造方法
    • JP2010021388A
    • 2010-01-28
    • JP2008181044
    • 2008-07-11
    • Fujitsu Microelectronics Ltd富士通マイクロエレクトロニクス株式会社
    • HAYASHI GUNOGAWA HIROYUKI
    • H01L21/8242H01L27/10H01L27/108
    • H01L27/0629H01L21/76232H01L27/1087H01L29/66181H01L29/945
    • PROBLEM TO BE SOLVED: To provide a semiconductor device that forms capacity between an electrode and an opposing semiconductor substrate, has the electrode formed in a groove formed on the semiconductor substrate, and includes a capacitor for suppressing a leakage current.
      SOLUTION: The semiconductor device includes: the semiconductor substrate 1 on which the groove 101 is formed; a capacitor electrode 8C formed in the groove 101; a first insulation film 5 formed on the bottom of the groove 101 and interposed between the semiconductor substrate 1 and the capacitor electrode 8C; a second insulation film 6Ca formed on the sidewall of the groove 101 and interposed between the semiconductor substrate 1 and the capacitor electrode 8C; and a first metal oxide film 7Ca formed on the bottom of the groove 101 and interposed between the capacitor electrode 8C and the first insulation film 5.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种在电极和相对的半导体衬底之间形成电容的半导体器件,其电极形成在形成在半导体衬底上的沟槽中,并且包括用于抑制漏电流的电容器。 解决方案:半导体器件包括:形成沟槽101的半导体衬底1; 形成在槽101中的电容电极8C; 第一绝缘膜5,其形成在槽101的底部并且插入在半导体衬底1和电容器电极8C之间; 形成在凹槽101的侧壁上并插入在半导体衬底1和电容器电极8C之间的第二绝缘膜6Ca; 以及形成在凹槽101的底部并且介于电容器电极8C和第一绝缘膜5之间的第一金属氧化物膜7Ca。(C)2010,JPO&INPIT
    • 6. 发明专利
    • Dram (dynamic/random access memory) cell
    • DRAM(动态/随机存取存储器)单元
    • JP2007258702A
    • 2007-10-04
    • JP2007062243
    • 2007-03-12
    • Internatl Business Mach Corp インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation
    • CHENG KANGGUOKHAN BABAR ALI
    • H01L21/8242H01L27/108
    • H01L27/1087
    • PROBLEM TO BE SOLVED: To provide a DRAM cell having a self-aligned gradient P well and a method for forming the same.
      SOLUTION: The DRAM cell includes: (a) a semiconductor substrate; (b) an electrically conductive region containing a first portion, a second portion, and a third portion; (c) a first doped semiconductor region insulated from the first portion by a capacitor dielectric layer, surrounding the first portion; and (d) a second doped semiconductor region insulated from the second portion by a collar dielectric layer, surrounding the second portion. The second portion is positioned on the first portion and is electrically connected to the first portion, the third portion is positioned on the second portion and is electrically connected to the second portion. The collar dielectric layer is directly contacted with a capacitor dielectric layer. If it departs from the collar dielectric layer, the doping concentration of a second doped semiconductor region decreases.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供具有自对准梯度P阱的DRAM单元及其形成方法。 解决方案:DRAM单元包括:(a)半导体衬底; (b)包含第一部分,第二部分和第三部分的导电区域; (c)通过电容器介电层与第一部分绝缘的第一掺杂半导体区域,围绕第一部分; 和(d)第二掺杂半导体区域,所述第二掺杂半导体区域围绕所述第二部分由环形介电层与所述第二部分绝缘。 第二部分位于第一部分上并且电连接到第一部分,第三部分位于第二部分上并且电连接到第二部分。 套环电介质层与电容器电介质层直接接触。 如果它离开套环电介质层,则第二掺杂半导体区域的掺杂浓度降低。 版权所有(C)2008,JPO&INPIT