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    • 83. 发明申请
    • SILICON PHOTOMULTIPLIER
    • 硅胶光刻胶
    • US20150053847A1
    • 2015-02-26
    • US14388162
    • 2012-03-29
    • Tetsuo Furumiya
    • Tetsuo Furumiya
    • G01J1/44G01J1/42
    • G01J1/44G01J1/4228G01J2001/4413G01J2001/446G01T1/20G01T1/208G01T1/248H01L27/1446H01L31/02019
    • One embodiment of the disclosure includes an A-D conversion circuit connected to a photodiode for providing a silicon photomultiplier that with enhanced detection accuracy and a time resolution. A current generated upon photon detection by the photodiode partially flows into another photodiode adjacent to the photodiode arranged in parallel via a resistor. At this time, the current is charged into a parasitic capacitance adjacent to the photodiode, and thereafter is discharged. However, the discharged current cannot flow toward an output terminal by the A-D conversion circuit, and also cannot switch the A-D conversion circuit. Consequently, the construction of the disclosure can detect light with no influence of the current discharged from the parasitic capacitance. As a result, the disclosure achieves a silicon photomultiplier with high detection accuracy and a satisfactory time resolution.
    • 本公开的一个实施例包括连接到光电二极管的A-D转换电路,用于提供具有增强的检测精度和时间分辨率的硅光电倍增管。 通过光电二极管的光子检测产生的电流部分地通过电阻器流入与光电二极管相邻的另一个光电二极管。 此时,将电流充电到与光电二极管相邻的寄生电容,然后放电。 然而,放电电流不能通过A-D转换电路流向输出端子,也不能切换A-D转换电路。 因此,本公开的结构可以不受从寄生电容放电的电流的影响来检测光。 结果,本发明实现了具有高检测精度和令人满意的时间分辨率的硅光电倍增管。
    • 86. 发明申请
    • RADIATION DETECTOR HAVING A BANDGAP ENGINEERED ABSORBER
    • 带有工程吸收剂的辐射探测器
    • US20140342493A1
    • 2014-11-20
    • US14286933
    • 2014-05-23
    • DRS RSTA, Inc.
    • Pradip MitraJeffrey D. BeckMark R. Skokan
    • H01L31/18H01L31/0296H01L31/0216
    • G01J1/44H01L27/1446H01L27/14652H01L31/02161H01L31/0232H01L31/024H01L31/02966H01L31/101H01L31/1032H01L31/1832
    • A radiation detector is provided that includes a photodiode having a radiation absorber with a graded multilayer structure. Each layer of the absorber is formed from a semiconductor material, such as HgCdTe. A first of the layers is formed to have a first predetermined wavelength cutoff. A second of the layers is disposed over the first layer and beneath the first surface of the absorber through which radiation is received. The second layer has a graded composition structure of the semiconductor material such that the wavelength cutoff of the second layer varies from a second predetermined wavelength cutoff to the first predetermined wavelength cutoff such that the second layer has a progressively smaller bandgap than the first bandgap of the first layer. The graded multilayer radiation absorber structure enables carriers to flow toward a conductor that is used for measuring the radiation being sensed by the radiation absorber.
    • 提供一种辐射检测器,其包括具有渐变多层结构的辐射吸收体的光电二极管。 吸收体的各层由诸如HgCdTe的半导体材料形成。 第一层被形成为具有第一预定波长截止。 层中的第二层设置在吸收体的第一层和第一表面之下,辐射被接收在该吸收体的第一表面下方。 第二层具有半导体材料的渐变组成结构,使得第二层的波长截止从第二预定波长截止到第一预定波长截止不同,使得第二层比带隙的第一带隙具有逐渐变小的带隙 第一层 分级多层辐射吸收器结构使得载体能够朝向用于测量由辐射吸收器感测的辐射的导体流动。