Isolated tri-gate transistor fabricated on bulk substrate
    83.
    发明申请
    Isolated tri-gate transistor fabricated on bulk substrate 有权
    在本体衬底上制造的隔离三栅极晶体管

    公开(公告)号:US20100059821A1

    公开(公告)日:2010-03-11

    申请号:US12590562

    申请日:2009-11-10

    CPC classification number: H01L29/66795 H01L29/785

    Abstract: A method of forming an isolated tri-gate semiconductor body comprises patterning a bulk substrate to form a fin structure, depositing an insulating material around the fin structure, recessing the insulating material to expose a portion of the fin structure that will be used for the tri-gate semiconductor body, depositing a nitride cap over the exposed portion of the fin structure to protect the exposed portion of the fin structure, and carrying out a thermal oxidation process to oxidize an unprotected portion of the fin structure below the nitride cap. The oxidized portion of the fin isolates the semiconductor body that is being protected by the nitride cap. The nitride cap may then be removed. The thermal oxidation process may comprise annealing the substrate at a temperature between around 900° C. and around 1100° C. for a time duration between around 0.5 hours and around 3 hours.

    Abstract translation: 形成隔离的三栅极半导体器件的方法包括:图案化块状衬底以形成翅片结构,在鳍结构周围沉积绝缘材料,使绝缘材料凹陷以暴露将用于三极管的鳍结构的一部分 - 半导体本体,在所述鳍结构的暴露部分上沉积氮化物帽以保护所述鳍结构的暴露部分,以及执行热氧化工艺以将所述鳍状结构的未受保护的部分氧化在所述氮化物帽下方。 翅片的氧化部分隔离被氮化物盖保护的半导体主体。 然后可以去除氮化物盖。 热氧化过程可以包括在大约900℃和大约1100℃之间的温度下退火约0.5小时至约3小时的时间。

    NOTCHED-BASE SPACER PROFILE FOR NON-PLANAR TRANSISTORS
    84.
    发明申请
    NOTCHED-BASE SPACER PROFILE FOR NON-PLANAR TRANSISTORS 有权
    非平面晶体管的凹槽型间距分布

    公开(公告)号:US20090315101A1

    公开(公告)日:2009-12-24

    申请号:US12145020

    申请日:2008-06-24

    CPC classification number: H01L29/785 H01L29/66795

    Abstract: A method of forming a notched-base spacer profile for non-planar transistors includes providing a semiconductor fin having a channel region on a substrate and forming a gate electrode adjacent to sidewalls of the channel region and on a top surface of the channel region, the gate electrode having on a top surface a hard mask. a spacer layer is deposited over the gate and the fin using a enhanced chemical vapor deposition (PE-CVD) process. A multi-etch process is applied to the spacer layer to form a pair of notches on laterally opposite sides of the gate electrode, wherein each notch is located adjacent to sidewalls of the fin and on the top surface of the fin.

    Abstract translation: 形成用于非平面晶体管的缺口基隔离物轮廓的方法包括提供在衬底上具有通道区域的半导体鳍片,并且形成与沟道区域的侧壁相邻并且在沟道区域的顶表面上的栅电极, 栅电极在顶表面上具有硬掩模。 使用增强的化学气相沉积(PE-CVD)工艺在栅极和散热片上沉积间隔层。 将多蚀刻工艺应用于间隔层,以在栅电极的横向相对侧上形成一对凹口,其中每个凹口位于翅片的侧壁和鳍的顶表面附近。

    Spacer patterned augmentation of tri-gate transistor gate length
    89.
    发明申请
    Spacer patterned augmentation of tri-gate transistor gate length 有权
    三栅极晶体管栅极长度的间隔图案化扩充

    公开(公告)号:US20090168498A1

    公开(公告)日:2009-07-02

    申请号:US12006063

    申请日:2007-12-28

    CPC classification number: H01L27/1104 H01L27/0207

    Abstract: In general, in one aspect, a method includes forming a semiconductor substrate having N-diffusion and P-diffusion regions. A gate stack is formed over the semiconductor substrate. A gate electrode hard mask is formed over the gate stack. The gate electrode hard mask is augmented around pass gate transistors with a spacer material. The gate stack is etched using the augmented gate electrode hard mask to form the gate electrodes. The gate electrodes around the pass gate have a greater length than other gate electrodes.

    Abstract translation: 通常,一方面,一种方法包括形成具有N-扩散和P-扩散区域的半导体衬底。 在半导体衬底上形成栅叠层。 栅电极硬掩模形成在栅叠层上。 栅极电极硬掩模用隔离材料增加在通过栅极晶体管周围。 使用增强的栅极电极硬掩模蚀刻栅极堆叠以形成栅电极。 通过栅极周围的栅电极具有比其它栅电极更大的长度。

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