Method of Manufacturing Memory Device
    4.
    发明申请
    Method of Manufacturing Memory Device 审中-公开
    制造存储器件的方法

    公开(公告)号:US20080081409A1

    公开(公告)日:2008-04-03

    申请号:US11858674

    申请日:2007-09-20

    IPC分类号: H01L21/8242

    摘要: A method of manufacturing a memory device that improves electrical characteristics of an MIM capacitor using a zirconium oxide film (ZrO2) as a dielectric film includes: forming a lower metal electrode on a semiconductor substrate; forming a two or more-layered dielectric film including zirconium oxide films on the lower metal electrode; forming an upper metal electrode on the dielectric film; forming an MIM capacitor by patterning the upper metal electrode, the dielectric film, and the lower metal electrode; forming an interlayer insulating film covering the MIM capacitor; forming contacts in the insulating film; and performing heat treatment at a temperature range of 425 to 500° C.

    摘要翻译: 制造使用氧化锆膜(ZrO 2/2)作为电介质膜的MIM电容器的电气特性的存储器件的制造方法包括:在半导体衬底上形成下部金属电极; 在下金属电极上形成包含氧化锆膜的两层或多层电介质膜; 在所述电介质膜上形成上金属电极; 通过图案化上金属电极,电介质膜和下金属电极形成MIM电容器; 形成覆盖所述MIM电容器的层间绝缘膜; 在绝缘膜中形成接触; 并在425〜500℃的温度范围进行热处理。

    Method of fabricating metal-insulator-metal capacitor and metal-insulator-metal capacitor manufactured by the method
    6.
    发明申请
    Method of fabricating metal-insulator-metal capacitor and metal-insulator-metal capacitor manufactured by the method 有权
    通过该方法制造金属 - 绝缘体 - 金属电容器和金属 - 绝缘体 - 金属电容器的方法

    公开(公告)号:US20060163640A1

    公开(公告)日:2006-07-27

    申请号:US11339151

    申请日:2006-01-25

    IPC分类号: H01L29/94

    摘要: In a method of fabricating a metal-insulator-metal (MIM) capacitor and a metal-insulator-metal (MIM) capacitor fabricated according to the method, the method comprises: forming an insulating-layer pattern on a semiconductor substrate, the insulating-layer pattern having a plurality of openings that respectively define areas where capacitor cells are to be formed; forming a lower electrode conductive layer on the insulating-layer pattern and on the semiconductor substrate; forming a first sacrificial layer that fills the openings on the lower electrode conductive layer; forming a second sacrificial layer on of the first sacrificial layer; planarizing the second sacrificial layer; exposing an upper surface of the lower electrode conductive layer; removing the exposed lower electrode conductive layer to form a plurality of lower electrodes that are separated from each other, each corresponding to a capacitor cell; and forming dielectric layers and upper electrodes, that are separated from each other, each corresponding to a capacitor cell, on each of the lower electrodes to provide a plurality of MIM capacitor cells constituting one capacitor to which the same electric signal is applied.

    摘要翻译: 在制造根据该方法制造的金属 - 绝缘体 - 金属(MIM)电容器和金属 - 绝缘体 - 金属(MIM))电容器的方法中,所述方法包括:在半导体衬底上形成绝缘层图案, 层图案具有分别限定要形成电容器单元的区域的多个开口; 在绝缘层图案和半导体衬底上形成下电极导电层; 形成填充所述下电极导电层上的开口的第一牺牲层; 在所述第一牺牲层上形成第二牺牲层; 平面化第二牺牲层; 暴露下电极导电层的上表面; 去除暴露的下电极导电层以形成彼此分离的多个下电极,每个相应于电容器单元; 并且在每个下电极上形成各自对应于电容器单元的电介质层和上电极,以提供构成相同电信号的一个电容器的多个MIM电容器单元。

    Method of fabricating metal-insulator-metal capacitor and metal-insulator-metal capacitor manufactured by the method
    8.
    发明授权
    Method of fabricating metal-insulator-metal capacitor and metal-insulator-metal capacitor manufactured by the method 有权
    通过该方法制造金属 - 绝缘体 - 金属电容器和金属 - 绝缘体 - 金属电容器的方法

    公开(公告)号:US07732296B2

    公开(公告)日:2010-06-08

    申请号:US11339151

    申请日:2006-01-25

    IPC分类号: H01L21/20

    摘要: In a method of fabricating a metal-insulator-metal (MIM) capacitor and a metal-insulator-metal (MIM) capacitor fabricated according to the method, the method comprises: forming an insulating-layer pattern on a semiconductor substrate, the insulating-layer pattern having a plurality of openings that respectively define areas where capacitor cells are to be formed; forming a lower electrode conductive layer on the insulating-layer pattern and on the semiconductor substrate; forming a first sacrificial layer that fills the openings on the lower electrode conductive layer; forming a second sacrificial layer on of the first sacrificial layer; planarizing the second sacrificial layer; exposing an upper surface of the lower electrode conductive layer; removing the exposed lower electrode conductive layer to form a plurality of lower electrodes that are separated from each other, each corresponding to a capacitor cell; and forming dielectric layers and upper electrodes, that are separated from each other, each corresponding to a capacitor cell, on each of the lower electrodes to provide a plurality of MIM capacitor cells constituting one capacitor to which the same electric signal is applied.

    摘要翻译: 在制造根据该方法制造的金属 - 绝缘体 - 金属(MIM)电容器和金属 - 绝缘体 - 金属(MIM))电容器的方法中,所述方法包括:在半导体衬底上形成绝缘层图案, 层图案具有分别限定要形成电容器单元的区域的多个开口; 在绝缘层图案和半导体衬底上形成下电极导电层; 形成填充所述下电极导电层上的开口的第一牺牲层; 在所述第一牺牲层上形成第二牺牲层; 平面化第二牺牲层; 暴露下电极导电层的上表面; 去除暴露的下电极导电层以形成彼此分离的多个下电极,每个相应于电容器单元; 并且在每个下电极上形成各自对应于电容器单元的电介质层和上电极,以提供构成相同电信号的一个电容器的多个MIM电容器单元。

    Capacitor of analog semiconductor device having multi-layer dielectric film and method of manufacturing the same
    10.
    发明授权
    Capacitor of analog semiconductor device having multi-layer dielectric film and method of manufacturing the same 有权
    具有多层电介质膜的模拟半导体器件的电容器及其制造方法

    公开(公告)号:US07407897B2

    公开(公告)日:2008-08-05

    申请号:US11173624

    申请日:2005-07-01

    IPC分类号: H01L29/00

    摘要: In a capacitor of an analog semiconductor device having a multi-layer dielectric film and a method of manufacturing the same, the multi-layer dielectric film can be readily manufactured, has weak reactivity with corresponding electrodes and offers excellent leakage current characteristics. In order to obtain these advantages, a lower dielectric film having a negative quadratic VCC, an intermediate dielectric film having a positive quadratic VCC, and an upper dielectric film having a negative quadratic VCC are sequentially formed between a lower electrode and an upper electrode. The lower dielectric film and the upper dielectric film may be composed of SiO2. The intermediate dielectric film may be composed of HFO2.

    摘要翻译: 在具有多层电介质膜的模拟半导体器件的电容器及其制造方法中,可以容易地制造多层电介质膜,与相应的电极具有弱反应性并提供优异的漏电流特性。 为了获得这些优点,在​​下电极和上电极之间顺序地形成具有负二次VCC的下电介质膜,具有正二次VCC的中间电介质膜和具有负二次VCC的上电介质膜。 下电介质膜和上电介质膜可以由SiO 2组成。 中间电介质膜可以由HFO 2 N 2构成。