SYSTEMS, METHODS, AND APPARATUSES FOR IMPLEMENTING BI-LAYER SEMICONDUCTING OXIDES IN SOURCE AND DRAIN FOR LOW ACCESS AND CONTACT RESISTANCE OF THIN FILM TRANSISTORS

    公开(公告)号:US20200066912A1

    公开(公告)日:2020-02-27

    申请号:US16325164

    申请日:2016-09-30

    Abstract: In accordance with disclosed embodiments, there are provided systems, methods, and apparatuses for implementing bi-layer semiconducting oxides in a source/drain for low access and contact resistance of thin film transistors. For instance, there is disclosed in accordance with one embodiment a semiconductor device having therein a substrate; a bi-layer oxides layer formed from a first oxide material and a second oxide material, the first oxide material comprising a semiconducting oxide material and having different material properties from the second oxide material comprising a high mobility oxide material; a channel layer formed atop the substrate, the channel layer formed from the semiconducting oxide material of the bi-layer oxides layer; a high mobility oxide layer formed atop the channel layer, the high conductivity oxide layer formed from the high mobility oxide material of the bi-layer oxides layer; metallic contacts formed atop the high mobility oxide layer; a gate and a gate oxide material formed atop the high mobility oxide layer, the gate oxide material being in direct contact with the high mobility oxide layer; and spacers separating the metallic contacts from the gate and gate oxide material. Other related embodiments are disclosed.

    SYSTEMS, METHODS, AND APPARATUSES FOR IMPLEMENTING A HIGH MOBILITY LOW CONTACT RESISTANCE SEMICONDUCTING OXIDE IN METAL CONTACT VIAS FOR THIN FILM TRANSISTORS

    公开(公告)号:US20190172921A1

    公开(公告)日:2019-06-06

    申请号:US16325333

    申请日:2016-09-30

    Abstract: In accordance with disclosed embodiments, there are provided systems, methods, and apparatuses for implementing a high mobility low contact resistance semiconducting oxide in metal contact vias for thin film transistors. For instance, there is disclosed in accordance with one embodiment an oxide semiconductor transistor, having therein: a substrate layer; a channel layer formed atop the substrate; a metal gate and a gate oxide material formed atop the semiconducting oxide material of the channel layer; spacers positioned adjacent to the gate and gate oxide material; a dielectric layer formed atop the channel layer, the dielectric layer encompassing the spacers, the gate, and the gate oxide material; contact vias opened into the dielectric material forming an opening through the dielectric layer to the channel layer; a high mobility liner material lining the contact vias and in direct contact with the channel layer, the high mobility liner formed from a high mobility oxide material; and metallic contact material filling the contact vias opened into the dielectric material and separated from the channel layer by the high mobility liner of the contact vias. Other related embodiments are disclosed.

    INTEGRATION METHODS TO FABRICATE INTERNAL SPACERS FOR NANOWIRE DEVICES
    30.
    发明申请
    INTEGRATION METHODS TO FABRICATE INTERNAL SPACERS FOR NANOWIRE DEVICES 审中-公开
    用于制造纳米器件的内部间隔件的集成方法

    公开(公告)号:US20170047400A1

    公开(公告)日:2017-02-16

    申请号:US15333123

    申请日:2016-10-24

    Abstract: A nanowire device having a plurality of internal spacers and a method for forming said internal spacers are disclosed. In an embodiment, a semiconductor device comprises a nanowire stack disposed above a substrate, the nanowire stack having a plurality of vertically-stacked nanowires, a gate structure wrapped around each of the plurality of nanowires, defining a channel region of the device, the gate structure having gate sidewalls, a pair of source/drain regions on opposite sides of the channel region; and an internal spacer on a portion of the gate sidewall between two adjacent nanowires, internal to the nanowire stack. In an embodiment, the internal spacers are formed by depositing spacer material in dimples etched adjacent to the channel region. In an embodiment, the dimples are etched through the channel region. In another embodiment, the dimples are etched through the source/drain region.

    Abstract translation: 公开了一种具有多个内部间隔物的纳米线器件和用于形成所述内部间隔物的方法。 在一个实施例中,半导体器件包括设置在衬底上方的纳米线堆叠,纳米线堆叠具有多个垂直堆叠的纳米线,围绕多个纳米线中的每一个缠绕的栅极结构,限定器件的沟道区,栅极 结构,其具有栅极侧壁,在沟道区域的相对侧上的一对源极/漏极区域; 以及位于纳米线堆叠内部的两个相邻纳米线之间的栅极侧壁的一部分上的内部间隔物。 在一个实施例中,内部间隔物通过在与沟道区相邻蚀刻的凹坑中沉积间隔物形成。 在一个实施例中,通过沟道区蚀刻凹坑。 在另一个实施例中,通过源/漏区蚀刻凹坑。

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