Oxide semiconductor field effect transistor device and method for manufacturing the same
    11.
    发明授权
    Oxide semiconductor field effect transistor device and method for manufacturing the same 有权
    氧化物半导体场效应晶体管器件及其制造方法

    公开(公告)号:US09455351B1

    公开(公告)日:2016-09-27

    申请号:US14841731

    申请日:2015-09-01

    Abstract: An oxide semiconductor field effect transistor (OS FET) device includes a first dielectric layer formed on a substrate, an oxide semiconductor (OS) island formed on the first dielectric layer, a first gate electrode formed on the OS island, a gate dielectric layer formed in between the first gate electrode and the OS island, a patterned hard mask layer formed on a top surface of the first gate electrode, an etch stop layer covering a top surface of the patterned hard mask layer and sidewalls of the first gate electrode, and a source electrode and a drain electrode formed on the OS island. At least one of the source electrode and the drain electrode partially overlaps the etching stop layer on the sidewalls of the first gate electrode.

    Abstract translation: 一种氧化物半导体场效应晶体管(OS FET)器件包括形成在基板上的第一介电层,形成在第一介电层上的氧化物半导体(OS)岛,形成在OS岛上的第一栅电极,形成的栅介质层 在第一栅电极和OS岛之间,形成在第一栅电极的顶表面上的图案化硬掩模层,覆盖图案化硬掩模层的顶表面和第一栅电极的侧壁的蚀刻停止层,以及 形成在OS岛上的源电极和漏电极。 源极电极和漏极电极中的至少一个部分地与第一栅电极的侧壁上的蚀刻停止层重叠。

    Method for fabricating semiconductor memory device having integrated DOSRAM and NOSRAM

    公开(公告)号:US10102907B2

    公开(公告)日:2018-10-16

    申请号:US15382755

    申请日:2016-12-19

    Abstract: A method for fabricating a semiconductor memory device is disclosed. A semiconductor substrate having a main surface is prepared. At least a first dielectric layer is formed on the main surface of the semiconductor substrate. A first OS FET device and a second OS FET device are formed on the first dielectric layer. At least a second dielectric layer is formed to cover the first dielectric layer, the first OS FET device, and the second OS FET device. A first MIM capacitor and a second MIM capacitor are formed on the second dielectric layer. The first MIM capacitor is electrically coupled to the first OS FET device, thereby constituting a DOSRAM cell. The second MIM capacitor is electrically coupled to the second OS FET device, thereby constituting a NOSRAM cell.

    CAPACITOR AND FABRICATION METHOD THEREOF

    公开(公告)号:US20170170256A1

    公开(公告)日:2017-06-15

    申请号:US14996244

    申请日:2016-01-15

    CPC classification number: H01L28/91

    Abstract: A method for fabricating capacitor is disclosed. The method includes the steps of: providing a material layer; forming a first conductive layer, a first dielectric layer, and a second conductive layer on the material layer; patterning the first dielectric layer and the second conductive layer to form a patterned first dielectric layer and a middle electrode; forming a second dielectric layer on the first conductive layer and the middle electrode; removing part of the second dielectric layer to form a patterned second dielectric layer; forming a third conductive layer on the first conductive layer and the patterned second dielectric layer, wherein the third conductive layer contacts the first conductive layer directly; and removing part of the third conductive layer to expose part of the patterned second dielectric layer.

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