SEMICONDUCTOR DEVICE AND A METHOD OF MANUFACTURING THE SAME
    3.
    发明申请
    SEMICONDUCTOR DEVICE AND A METHOD OF MANUFACTURING THE SAME 有权
    半导体器件及其制造方法

    公开(公告)号:US20090095995A1

    公开(公告)日:2009-04-16

    申请号:US12239807

    申请日:2008-09-28

    摘要: In connection with a semiconductor device including a capacitor element there is provided a technique capable of improving the reliability of the capacitor element. A capacitor element is formed in an element isolation region formed over a semiconductor substrate. The capacitor element includes a lower electrode and an upper electrode formed over the lower electrode through a capacitor insulating film. Basically, the lower electrode and the upper electrode are formed from polysilicon films and a cobalt silicide film formed over the surfaces of the polysilicon films. End portions of the cobalt silicide film formed over the upper electrode are spaced apart a distance from end portions of the upper electrode. Besides, end portions of the cobalt silicide film formed over the lower electrode are spaced apart a distance from boundaries between the upper electrode and the lower electrode.

    摘要翻译: 关于包括电容器元件的半导体器件,提供了一种能够提高电容器元件的可靠性的技术。 电容器元件形成在半导体衬底上形成的元件隔离区域中。 电容器元件包括通过电容器绝缘膜形成在下电极上的下电极和上电极。 基本上,下电极和上电极由形成在多晶硅膜的表面上的多晶硅膜和硅化钴膜形成。 形成在上电极上的钴硅化物膜的端部与上电极的端部间隔开一定距离。 此外,形成在下电极上的钴硅化物膜的端部与上电极和下电极之间的边界间隔一定距离。