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    • 2. 发明申请
    • Silicon dot forming method and silicon dot forming apparatus
    • 硅点形成方法和硅点形成装置
    • US20070007123A1
    • 2007-01-11
    • US11519154
    • 2006-09-12
    • Eiji TakahashiTakashi MikamiShigeaki KishidaKenji KatoAtsushi TomyoTsukasa HayashiKiyoshi Ogata
    • Eiji TakahashiTakashi MikamiShigeaki KishidaKenji KatoAtsushi TomyoTsukasa HayashiKiyoshi Ogata
    • C23C14/32C23C14/00
    • C23C16/24H01L21/02381H01L21/02488H01L21/02532H01L21/02601H01L21/02631
    • There are provided a method and an apparatus which form silicon dots having substantially uniform particle diameters and exhibiting a substantially uniform density distribution directly on a substrate at a low temperature. A hydrogen gas (or a hydrogen gas and a silane-containing gas) is supplied into a vacuum chamber (1) provided with a silicon sputter target (e.g., target 30), or the hydrogen gas and the silane-containing gas are supplied into the chamber (1) without arranging the silicon sputter target therein, a high-frequency power is applied to the gas(es) so that plasma is generated such that a ratio (Si(288 nm)/Hβ) between an emission intensity Si(288 nm) of silicon atoms at a wavelength of 288 nm and an emission intensity Hβ of hydrogen atoms at a wavelength of 484 nm in plasma emission is 10.0 or lower, and preferably 3.0 or lower, or 0.5 or lower, and silicon dots (SiD) having particle diameters of 20 nm or lower, or 10 nm or lower are formed directly on the substrate (S) at a low temperature of 500 deg. C. or lower in the plasma (and with chemical sputtering if a silicon sputter target is present).
    • 提供了形成具有基本上均匀的粒径并且在低温下直接在基底上表现出基本均匀的密度分布的硅点的方法和装置。 将氢气(或氢气和含硅烷气体)供给到设置有硅溅射靶(例如,靶30)的真空室(1)中,或者将氢气和含硅烷的气体供应到 在不将硅溅射靶设置在其中的腔室(1)中,向气体施加高频功率,从而产生等离子体,使得发射强度Si(((nm)/ Hbeta) 288nm波长的硅原子和等离子体发射波长为484nm的氢原子的发光强度Hbeta为10.0以下,优选为3.0以下,0.5以下,硅点(SiD ),在500度的低温下直接在基板(S)上形成粒径为20nm以下或10nm以下的粒径。 在等离子体中(如果存在硅溅射靶,则具有化学溅射)。