METHODS OF MAKING SEMICONDUCTOR X-RAY DETECTOR
    63.
    发明公开
    METHODS OF MAKING SEMICONDUCTOR X-RAY DETECTOR 审中-公开
    制造半导体X射线探测器的方法

    公开(公告)号:EP3281041A1

    公开(公告)日:2018-02-14

    申请号:EP15888100.3

    申请日:2015-04-07

    IPC分类号: G01T1/24

    摘要: Disclosed herein is a method of making an apparatus suitable for detecting x-ray, the method comprising: obtaining a substrate having a first surface and a second surface, wherein the substrate comprises an electronics system in or on the substrate, wherein the substrate comprises a plurality of electric contacts are on the first surface; obtaining a first chip comprising a first X-ray absorption layer, wherein the first X-ray absorption layer comprises an electrode; bonding the first chip to the substrate such that the electrode of the first X-ray absorption layer is electrically connected to at least one of the electrical contacts.

    APPARATUS AND ASSOCIATED METHODS FOR REDUCING NOISE OF PHOTODETECTORS
    66.
    发明公开
    APPARATUS AND ASSOCIATED METHODS FOR REDUCING NOISE OF PHOTODETECTORS 审中-公开
    减少光检测器噪声的装置和相关方法

    公开(公告)号:EP3240044A1

    公开(公告)日:2017-11-01

    申请号:EP16167252.2

    申请日:2016-04-27

    申请人: Emberion Oy

    摘要: Methods of reducing flicker noise in photodetectors are disclosed. A photodetector comprises a channel (303) made from a two-dimensional material like graphene and has a plurality of quantum dots (306) formed thereon for electron-hole pair (312, 313) generation from incident electromagnetic radiation (307). To a gate electrode (304) which is separated from the channel (303) by a dielectric material a time-varying voltage (311) is applied to modulate the response of the photodetector. From the resulting source-drain current, a signal is derived which is further processed to reduce flicker noise in the photodetector signal. The further signal processing is performed by a lock-in technique or by correlated double sampling. In a further embodiment, the time-varying voltage may be sufficiently large in magnitude to "reset" trapped charge states to a charged or discharged state each time the voltage is changed for further reduction of the flicker noise.

    摘要翻译: 公开了减少光电探测器中的闪烁噪声的方法。 光电检测器包括由石墨烯等二维材料制成的通道(303),并且具有形成在其上的用于从入射电磁辐射(307)产生电子 - 空穴对(312,313)的多个量子点(306)。 对通过介电材料与沟道(303)分开的栅电极(304)施加时变电压(311)以调制光电检测器的响应。 从得到的源极 - 漏极电流导出信号,该信号被进一步处理以减少光电探测器信号中的闪烁噪声。 进一步的信号处理通过锁定技术或通过相关双采样来执行。 在另一个实施例中,每当电压改变时,时变电压的量值足够大以将捕获的电荷状态“重置”到充电或放电状态,以进一步减少闪烁噪声。

    INTEGRATED BOUND-MODE SPECTRAL/ANGULAR SENSORS
    67.
    发明公开
    INTEGRATED BOUND-MODE SPECTRAL/ANGULAR SENSORS 审中-公开
    INTEGRIERTE SPEKTREN- / WINKELSENSOREN IM VERBUNDENEN MODUS

    公开(公告)号:EP3152788A1

    公开(公告)日:2017-04-12

    申请号:EP15807428.6

    申请日:2015-06-09

    申请人: Stc.Unm

    IPC分类号: H01L33/58 H01L33/48 F21S2/00

    摘要: A 2-D sensor array includes a semiconductor substrate and a plurality of pixels disposed on the semiconductor substrate. Each pixel includes a coupling region and a junction region, and a slab waveguide structure disposed on the semiconductor substrate and extending from the coupling region to the region. The slab waveguide includes a confinement layer disposed between a first cladding layer and a second cladding layer. The first cladding and the second cladding each have a refractive index that is lower than a refractive index of the confinement layer. Each pixel also includes a coupling structure disposed in the coupling region and within the slab waveguide. The coupling structure includes two materials having different indices of refraction arranged as a grating defined by a grating period. The junction region comprises a p-n junction in communication with electrical contacts for biasing and collection of carriers resulting from absorption of incident radiation.

    摘要翻译: 2维传感器阵列包括半导体衬底和设置在半导体衬底上的多个像素。 每个像素包括耦合区域和结区域,以及设置在半导体衬底上并从耦合区域延伸到该区域的平板波导结构。 平板波导包括设置在第一包层和第二包层之间的限制层。 第一包层和第二包层各自具有低于限制层的折射率的折射率。 每个像素还包括设置在耦合区域中并且在平板波导内的耦合结构。 耦合结构包括具有不同的折射率布置为由光栅周期限定的光栅的两种材料。 结区域包括与电触点连通的p-n结,用于偏移和收集由吸收入射辐射引起的载流子。