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    • 5. 发明授权
    • Polishing apparatus and polishing method
    • 抛光设备和抛光方法
    • US5904609A
    • 1999-05-18
    • US637433
    • 1996-04-25
    • Atsushi FukurodaYoshihiro ArimotoKo Nakamura
    • Atsushi FukurodaYoshihiro ArimotoKo Nakamura
    • B24B37/04G05B19/416B24B49/00
    • B24B37/005G05B19/4163G05B2219/45199G05B2219/45232G05B2219/49085
    • A polishing apparatus comprises a first surface plate for supporting a polishing object, a driving mechanism for rotating the first surface plate, a second surface plate arranged so as to oppose to the first surface plate, an abrasive cloth stuck to the second surface plate, a vibration detector attached to the first surface plate or the second surface plate for detecting vibration in polishing, a controlling portion for controlling polishing operation of the first surface plate and the second surface plate, and signal analyzing unit for analyzing vibration intensity detected by the a vibration detector through frequency analysis, integrating the vibration intensity relative to time, and transmitting a polishing stop signal to stop polishing operation of the first surface plate and the second surface plate to the controlling portion when variation in a resultant integral value relative to time is less than a first reference value or when the resultant integral value is less than a second reference value.
    • 抛光装置包括用于支撑抛光对象的第一表面板,用于旋转第一表面板的驱动机构,与第一表面板相对布置的第二表面板,粘附到第二表面板的研磨布, 振动检测器,附接到第一表面板或第二表面板,用于检测抛光中的振动;控制部分,用于控制第一表面板和第二表面板的抛光操作;以及信号分析单元,用于分析由振动检测的振动强度 检测器通过频率分析,相对于时间的振动强度积分,并且当所得到的积分值相对于时间的变化小于时,传递抛光停止信号以停止将第一表面板和第二表面板的抛光操作到控制部分 第一参考值或当所得积分值小于seco时 nd参考值。
    • 6. 发明授权
    • Semiconductor device with ferro-electric capacitor
    • 具有铁电电容器的半导体器件
    • US08497537B2
    • 2013-07-30
    • US12128088
    • 2008-05-28
    • Wensheng WangKo Nakamura
    • Wensheng WangKo Nakamura
    • H01L21/02
    • H01L21/02107H01L27/11507H01L28/57H01L28/65
    • A semiconductor device has a ferro-electric capacitor with small leak current and less process deterioration even upon miniaturization. The semiconductor device includes: a semiconductor element formed in a semiconductor substrate; lamination of an interlayer insulating film and a lower insulating shielding film having a hydrogen/moisture shielding function, the lamination being formed covering the semiconductor element; a conductive adhesion enhancing film formed above the lower insulating shielding film; and a ferro-electric capacitor including a lower electrode formed above the conductive adhesion enhancing film, a ferro-electric film formed on the lower electrode and being disposed within the lower electrode as viewed in plan, and an upper electrode formed on the ferro-electric film and being disposed within the ferro-electric film as viewed in plan, wherein the conductive adhesion enhancing film has a function of improving adhesion of the lower electrode and reducing leak current of the ferro-electric capacitor.
    • 半导体器件具有漏电流小的铁电电容,即使在小型化时也具有较少的工艺劣化。 半导体器件包括:形成在半导体衬底中的半导体元件; 夹层绝缘膜和具有氢/水分屏蔽功能的下绝缘屏蔽膜,形成覆盖半导体元件的叠层; 形成在下绝缘屏蔽膜上方的导电粘附增强膜; 以及包含形成在导电性粘合增强膜上的下电极的铁电电容器,形成在下电极上的铁电膜,并且设置在俯视图中的下电极内;以及上电极,形成在铁电 膜,并且设置在平面图所示的铁电膜内,其中,导电性粘附增强膜具有提高下部电极的附着力和降低铁电体的漏电流的功能。
    • 7. 发明授权
    • Fabrication process of semiconductor device
    • 半导体器件制造工艺
    • US07816150B2
    • 2010-10-19
    • US11933684
    • 2007-11-01
    • Ko Nakamura
    • Ko Nakamura
    • H01L21/8242
    • H01L27/11507H01L27/11502
    • A method for fabricating a semiconductor device includes the steps of forming a first ferroelectric film over a lower electrode, crystallizing the first ferroelectric film, forming a second ferroelectric film in an amorphous state over the first ferroelectric film so as to fill voids existing on a surface of the first ferroelectric film, and forming an upper electrode over the second ferroelectric film of the amorphous state, wherein the crystallizing step of the first ferroelectric film is conducted by a thermal annealing process at a temperature of 585° C. or higher.
    • 一种制造半导体器件的方法包括以下步骤:在下电极上形成第一铁电体膜,使第一铁电体膜结晶,在第一铁电体膜上形成非晶状态的第二铁电体膜,以填充存在于表面上的空隙 并且在非晶状态的第二铁电体膜上形成上电极,其中第一强电介质膜的结晶步骤通过热退火工艺在585℃或更高的温度下进行。