Method of fabricating semiconductor device
    25.
    发明授权
    Method of fabricating semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US08486787B2

    公开(公告)日:2013-07-16

    申请号:US13075334

    申请日:2011-03-30

    IPC分类号: H01L21/00

    摘要: A method of fabricating a semiconductor device includes forming a first contact opening having a relatively larger depth than a second contact opening to expose first and second contacts through an insulation layer, where the first and second contacts are located at different depths with respect to an upper surface of the insulation layer. Therefore, it is possible to prevent excessive over-etch of the second contact opening and minimize etching damage to the contact region exposed by the second contact opening.

    摘要翻译: 制造半导体器件的方法包括形成具有比第二接触开口更大的深度的第一接触开口,以通过绝缘层暴露第一和第二接触,其中第一和第二接触件相对于上部 绝缘层表面。 因此,可以防止第二接触开口的过度的过度蚀刻,并使对由第二接触开口露出的接触区域的蚀刻损伤最小化。

    SEMICONDUCTOR DEVICES
    26.
    发明申请
    SEMICONDUCTOR DEVICES 审中-公开
    半导体器件

    公开(公告)号:US20130056823A1

    公开(公告)日:2013-03-07

    申请号:US13603045

    申请日:2012-09-04

    IPC分类号: H01L29/78

    摘要: A device isolation layer is formed in a substrate to define spaced-apart linear active regions in the substrate. Buried gate patterns are formed in the substrate and extending along a first direction to cross the active regions. An etch stop layer and a first insulating layer are formed on the substrate. Bit line structures are formed on the first insulating layer and extending along a second direction transverse to the first direction to cross the active regions. A second insulating layer is formed on the bit line structures. Contact plugs are formed penetrating the second insulating layer, the first insulating layer, and the etch stop layer to contact one of the active regions between adjacent ones of the bit line structures.

    摘要翻译: 在衬底中形成器件隔离层,以在衬底中限定间隔开的线性有源区。 掩埋栅极图案形成在衬底中并且沿着第一方向延伸以跨过有源区域。 在基板上形成蚀刻停止层和第一绝缘层。 位线结构形成在第一绝缘层上并且沿着横向于第一方向的第二方向延伸以穿过有源区。 在位线结构上形成第二绝缘层。 穿过第二绝缘层,第一绝缘层和蚀刻停止层的接触插塞接触相邻的位线结构中的一个有源区。

    METHOD OF FABRICATING SEMICONDUCTOR DEVICE
    27.
    发明申请
    METHOD OF FABRICATING SEMICONDUCTOR DEVICE 有权
    制造半导体器件的方法

    公开(公告)号:US20110256719A1

    公开(公告)日:2011-10-20

    申请号:US13075334

    申请日:2011-03-30

    IPC分类号: H01L21/28

    摘要: A method of fabricating a semiconductor device includes forming a first contact opening having a relatively larger depth than a second contact opening to expose first and second contacts through an insulation layer, where the first and second contacts are located at different depths with respect to an upper surface of the insulation layer. Therefore, it is possible to prevent excessive over-etch of the second contact opening and minimize etching damage to the contact region exposed by the second contact opening.

    摘要翻译: 制造半导体器件的方法包括形成具有比第二接触开口更大的深度的第一接触开口,以通过绝缘层暴露第一和第二接触,其中第一和第二接触件相对于上部 绝缘层表面。 因此,可以防止第二接触开口的过度的过度蚀刻,并使对由第二接触开口露出的接触区域的蚀刻损伤最小化。