PHOTODIODE ARRAY FOR SPECTROSCOPIC MEASUREMENT, AND SPECTROSCOPIC MEASUREMENT APPARATUS
    2.
    发明公开
    PHOTODIODE ARRAY FOR SPECTROSCOPIC MEASUREMENT, AND SPECTROSCOPIC MEASUREMENT APPARATUS 审中-公开
    光二极管阵列,用于光谱测量光谱测量和设备

    公开(公告)号:EP2833106A4

    公开(公告)日:2015-04-22

    申请号:EP13767497

    申请日:2013-03-26

    Abstract: A plurality of photodiodes arrayed in a one-dimensional form are divided into a plurality of groups. The structure (the material and/or thickness of the coating) of an antireflection coating is changed for each group so that all the surfaces of the photodiodes belonging to each group are covered with an antireflection coating having a transmittance characteristic which shows a maximum transmittance within a range of wavelengths of light to be received by those photodiodes. In particular, a SiO 2 coating layer (104) on the silicon substrate (102) and an Al 2 O 3 coating layer (105) are common to all the photodiodes, while the structure of the upper layers are modified with respect to the wavelength. Within an ultraviolet wavelength region, the coating structure is more finely changed with respect to the wavelength. By such a design, the transmittance (the rate at which incident light reaches a photoelectric conversion region) can be improved while making the best efforts to avoid a complex manufacturing process. As a result, high levels of sensitivity can be achieved without omission even within the ultraviolet wavelength region in a spectrometric measurement system using a photodiode array detector.

    Solid-state imaging element
    5.
    发明专利
    Solid-state imaging element 有权
    固态成像元件

    公开(公告)号:JP2011035382A

    公开(公告)日:2011-02-17

    申请号:JP2010142763

    申请日:2010-06-23

    Abstract: PROBLEM TO BE SOLVED: To improve the detection sensitivity and an S/N of a solid state imaging element for extremely high-speed imaging at million frames per second and more without impairing imaging speed. SOLUTION: A floating diffusion (FD) region 13 is formed at the edge of a light receiving surface of an embedded photodiode, and with a transfer gate electrode 12 therebetween. A first region 111 with a radially extending section centered on the FD region 13, and a second region 112 located outside the first region are created in the roughly fan-shaped light receiving surface. Impurities of the same conductivity types as signal electrical charges collected in the first region 111 are introduced, thus forming an electric field which directs the signal electrical charge from the radially extending section toward the center according to the three-dimensional electric field effect. As a result, an electrical charge transfer time is reduced. Additionally, since a circuit element for a subsequent stage can be disposed adjacent to the FD region 13, the parasitic capacitance of the FD region 13 can be reduced and a highly-sensitive element can be obtained. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提高用于以每秒百万帧以上的超高速成像的固态成像元件的检测灵敏度和S / N,而不损害成像速度。 解决方案:在嵌入式光电二极管的光接收表面的边缘处形成浮动扩散(FD)区域13,并且其间具有传输栅电极12。 在大致扇形的光接收表面上产生具有以FD区域13为中心的径向延伸部分的第一区域111和位于第一区域外部的第二区域112。 引入与在第一区域111中收集的信号电荷相同的导电类型的杂质,从而形成根据三维电场效应将信号电荷从径向延伸部分朝向中心引导的电场。 结果,减少了电荷转移时间。 此外,由于用于后级的电路元件可以被布置为与FD区域13相邻,所以可以减小FD区域13的寄生电容并且可以获得高灵敏度元件。 版权所有(C)2011,JPO&INPIT

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