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    • 4. 发明授权
    • Growth of epitaxial semiconductor films in presence of reactive metal
    • 外延半导体膜在活性金属存在下的生长
    • US06211042B1
    • 2001-04-03
    • US09170621
    • 1998-10-13
    • Fenton Read McFeelyIsmail Cevdet NoyanJohn Jacob Yurkas
    • Fenton Read McFeelyIsmail Cevdet NoyanJohn Jacob Yurkas
    • H01L2120
    • H01L21/28518C30B25/02C30B29/52H01L21/02381H01L21/02532H01L21/0262
    • A method is disclosed for forming an epitaxial layer of a semiconductor material over a metal structure disposed upon a surface of a semiconductor substrate, the metal being characterized by a negative Gibbs free energy for the formation of a compound of the metal and the semiconductor material. The method comprises the steps of: a) placing the substrate in a reactor vessel having a base pressure in the ultra high vacuum range, b) bringing the substrate to an elevated temperature, and c) flowing, over said substrate, a halogen-free precursor gas of molecules comprising the semiconductor material. Typically, the metal structure characterized by feature dimensions of less than 2.0 microns. Preferably, the metal is tungsten, the semiconductor material is silicon and the gas comprises a silane of the form SinH(2n+2), where n is a positive integer.
    • 公开了一种用于在半导体衬底的表面上形成半导体材料外延层的方法,该金属结构设置在金属结构的表面上,该金属的特征在于用于形成金属和半导体材料的化合物的负的吉布斯自由能。 该方法包括以下步骤:a)将基板放置在基本压力在超高真空范围内的反应器容器中,b)使基板升高温度,和c)在所述基板上流过无卤素 包含半导体材料的分子的前体气体。 通常,特征尺寸小于2.0微米的金属结构。 优选地,金属是钨,半导体材料是硅,气体包括形式为SinH(2n + 2)的硅烷,其中n是正整数。
    • 9. 发明授权
    • CMOS-compatible metal-semiconductor-metal photodetector
    • CMOS兼容金属 - 半导体 - 金属光电探测器
    • US06756651B2
    • 2004-06-29
    • US09963194
    • 2001-09-26
    • Ferenc M. BozsoFenton Read McFeelyJohn Jacob Yurkas
    • Ferenc M. BozsoFenton Read McFeelyJohn Jacob Yurkas
    • H01L2714
    • H01L31/1085H01L31/1133
    • A novel photodetector CMOS-compatible photodetector is disclosed in which photo-generation of carriers (electrons) is carried out in the metal of the electrodes, rather than as electron-hole pairs in the semiconductor on which the metal electrodes are deposited. The novel photo detector comprises a silicon or other semiconductor substrate material characterized by an electron energy bandgap, and a pair of metal electrodes disposed upon a surface of the silicon to define therebetween a border area of the surface. One of the two electrodes being exposed to the incident radiation and covering an area of said surface which is larger than the aforesaid border area, the aforesaid metal of the electrodes being characterized by a Fermi level which is within said electron energy bandgap.
    • 公开了一种新颖的光电检测器CMOS兼容光电检测器,其中在电极的金属中进行载流子(电子)的光生成,而不是沉积金属电极的半导体中的电子 - 空穴对。 新型光电检测器包括以电子能带隙为特征的硅或其它半导体衬底材料,以及设置在硅表面上的一对金属电极,以在其间界定表面的边界区域。 两个电极中的一个暴露于入射辐射并且覆盖所述表面的大于上述边界区域的区域,上述电极的金属的特征在于在所述电子能带隙内的费米能级。