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    • 2. 发明申请
    • SIMULTANEOUS DUAL-BAND DETECTOR
    • 同时双线检测器
    • US20150243825A1
    • 2015-08-27
    • US14191933
    • 2014-02-27
    • Raytheon Company
    • Craig KeaslerJustin Gordon Adams WehnerRichard H. WylesDonald F. KingPeter C. RobertsChristopher L. Mears
    • H01L31/101H01L31/0352
    • H01L31/1013G01J2005/202H01L27/1446H01L27/1463H01L31/1032
    • A radiation detector having a pair of adjacent mesas disposed on a common layer. The common layer comprises a first semiconductor layer having a first conductivity type and an energy bandgap responsive to radiation in a first spectral region. Each of the mesas comprises: a second semiconductor; and a third semiconductor layer disposed on the second semiconductor layer having the first conductivity type and an energy bandgap responsive to radiation in a second spectral region. The second semiconductor layer may have a conductivity type opposite the first conductivity type or the three layers may provide an nBn or pBp structure. The third semiconductor layer of the second mesa produces minority carriers, in response to the radiation in the second spectral region, flowing as unwanted carriers into the common layer towards the first mesa. A barrier region is disposed in the common layer to prevent the unwanted carriers from passing from the second mesa to the first mesa.
    • 一种放射线检测器,具有设置在公共层上的一对相邻台面。 公共层包括具有第一导电类型的第一半导体层和响应于第一光谱区域中的辐射的能带隙。 每个台面包括:第二半导体; 以及设置在具有第一导电类型的第二半导体层上的第三半导体层和响应于第二光谱区域中的辐射的能带隙。 第二半导体层可以具有与第一导电类型相反的导电类型,或者三层可以提供nBn或pBp结构。 第二台面的第三半导体层响应于第二光谱区域中的辐射而产生少数载流子,作为不想要的载流子朝向第一台面流入公共层。 阻挡区域设置在公共层中以防止不需要的载体从第二台面传播到第一台面。