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    • 39. 发明授权
    • MIM capacitor structure and method of fabrication
    • MIM电容器结构及其制造方法
    • US07112507B2
    • 2006-09-26
    • US10720450
    • 2003-11-24
    • Sun-Oo KimErnst Demm
    • Sun-Oo KimErnst Demm
    • H01L21/20
    • H01L28/60H01L23/5223H01L28/75H01L2924/0002H01L2924/00
    • A method of forming a metal-insulator-metal (MIM) capacitor wherein a plate of a MIM capacitor is formed in the entire thickness of a metallization layer of a semiconductor device. At least one thin conductive material layer is disposed within the material of the metallization layer to reduce the surface roughness of the metallization layer, thus improving the reliability of the MIM capacitor. The thin conductive material layer may comprise TiN, TaN, or WN and may alternatively comprise a barrier layer disposed over or under the TiN, TaN, or WN. One plate of the MIM capacitor is patterned using the same mask that is used to pattern conductive lines in a metallization layer, thus reducing the number of masks that are required to manufacture the MIM capacitor.
    • 一种形成金属绝缘体金属(MIM)电容器的方法,其中在半导体器件的金属化层的整个厚度上形成MIM电容器的板。 至少一个薄导电材料层设置在金属化层的材料内,以减小金属化层的表面粗糙度,从而提高MIM电容器的可靠性。 薄导电材料层可以包括TiN,TaN或WN,并且还可以包括设置在TiN,TaN或WN之上或之下的阻挡层。 使用与用于在金属化层中形成导线的掩模相同的掩模对MIM电容器的一个板进行构图,从而减少制造MIM电容器所需的掩模的数量。