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    • 1. 发明申请
    • INTEGRATION METHODS TO FABRICATE INTERNAL SPACERS FOR NANOWIRE DEVICES
    • 用于制造纳米器件的内部间隔件的集成方法
    • WO2015147792A1
    • 2015-10-01
    • PCT/US2014/031632
    • 2014-03-24
    • INTEL CORPORATION
    • KIM, SeiyonSIMON, Daniel A.KUHN, Kelin J.WARD, Curtis W.
    • H01L29/78H01L21/336H01L21/764
    • H01L29/66553B82Y10/00H01L21/764H01L29/0653H01L29/0673H01L29/42392H01L29/66439H01L29/66545H01L29/66742H01L29/775H01L29/78618H01L29/78696
    • 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 photo-definable spacer material in dimples etched adjacent to the channel region. Photo-definable material remains in the dimples by altering the etch characteristics of material outside of the dimples and selectively removing altered photo-definable material outside of the dimples.
    • 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,通过在与沟道区相邻蚀刻的凹坑中沉积光可定义的间隔物材料来形成内部间隔物。 通过改变凹坑之外的材料的蚀刻特性并且选择性地去除在凹坑之外的改变的光可定义材料,可光限定的材料保留在凹坑中。