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公开(公告)号:US08754502B2
公开(公告)日:2014-06-17
申请号:US13710845
申请日:2012-12-11
Applicant: Hamamatsu Photonics K.K.
Inventor: Koei Yamamoto , Terumasa Nagano , Kazuhisa Yamamura , Kenichi Sato , Ryutaro Tsuchiya
IPC: H01L29/861 , H01L21/20
CPC classification number: H01L27/1446 , H01L31/107
Abstract: Each light detecting unit includes a semiconductor region that outputs a carrier, and a surface electrode. In a photodiode array, a read wire is positioned between neighboring avalanche photodiodes. When a plane including a surface of the semiconductor region is set as a reference plane, a distance tb from the reference plane to the read wire is larger than a distance to from the reference plane to the surface electrode.
Abstract translation: 每个光检测单元包括输出载体的半导体区域和表面电极。 在光电二极管阵列中,读线被定位在相邻的雪崩光电二极管之间。 当将包括半导体区域的表面的平面设定为基准面时,从基准面到读取线的距离tb大于从基准面到表面电极的距离。
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公开(公告)号:US10396107B2
公开(公告)日:2019-08-27
申请号:US16040709
申请日:2018-07-20
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor: Kazuhisa Yamamura , Kenichi Sato
IPC: H01L31/107 , H01L27/144 , H01L27/14 , H01L27/146
Abstract: A photodiode array 1 has a plurality of photodetector channels 10 which are formed on an n-type substrate 2 having an n-type semiconductor layer 12, with a light to be detected being incident to the plurality of photodetector channels 10. The photodiode array 1 comprises: a p−-type semiconductor layer 13 formed on the n-type semiconductor layer 12 of the substrate 2; resistors 4 each of which is provided to each of the photodetector channels 10 and is connected to a signal conductor 3 at one end thereof; and an n-type separating part 20 formed between the plurality of photodetector channels 10. The p−-type semiconductor layer 13 forms a pn junction at the interface between the substrate 2, and comprises a plurality of multiplication regions AM for avalanche multiplication of carriers produced by the incidence of the light to be detected so that each of the multiplication regions corresponds to each of the photodetector channels. The separating part 20 is formed so that each of the multiplication regions AM of the p−-type semiconductor layer 13 corresponds to each of the photodetector channels 10.
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公开(公告)号:US10088579B2
公开(公告)日:2018-10-02
申请号:US15735389
申请日:2016-07-22
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. , Japan Aerospace Exploration Agency , HAMAMATSU PHOTONICS K.K.
Inventor: Daisuke Matsuura , Yoshikatsu Kuroda , Kei Gemba , Tadayuki Takahashi , Shin Watanabe , Shin'ichiro Takeda , Hiroo Yamamoto , Kazumasa Kosugi , Kazuhisa Yamamura
Abstract: A radiation measuring apparatus (20) includes a scatterer detector (10A), an absorber detector (10B) and a processing unit (12). Pixel electrodes (2) of the scatterer detector (10A) and the absorber detector (10B) are arranged such that a distance between centers of two neighbor pixel electrodes (2) is smaller than a mean free path of a recoil electron generated in the Compton scattering of an electromagnetic radiation. The processing unit (12) specifies and incidence direction of the electromagnetic radiation based on a recoiling direction to which the recoil electron recoils. In this way, an electron tracking-type Compton camera is realized which confines the incidence direction of the electromagnetic radiation by using the recoiling direction of the recoil electron in a Compton camera using a semiconductor detector.
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公开(公告)号:US20180180747A1
公开(公告)日:2018-06-28
申请号:US15735389
申请日:2016-07-22
Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. , Japan Aerospace Exploration Agency , HAMAMATSU PHOTONICS K.K.
Inventor: Daisuke MATSUURA , Yoshikatsu KURODA , Kei GEMBA , Tadayuki TAKAHASHI , Shin WATANABE , Shin'ichiro TAKEDA , Hiroo YAMAMOTO , KAZUMASA KOSUGI , Kazuhisa Yamamura
Abstract: A radiation measuring apparatus (20) includes a scatterer detector (10A), an absorber detector (10B) and a processing unit (12). Pixel electrodes (2) of the scatterer detector (10A) and the absorber detector (10B) are arranged such that a distance between centers of two neighbor pixel electrodes (2) is smaller than a mean free path of a recoil electron generated in the Compton scattering of an electromagnetic radiation. The processing unit (12) specifies and incidence direction of the electromagnetic radiation based on a recoiling direction to which the recoil electron recoils. In this way, an electron tracking-type Compton camera is realized which confines the incidence direction of the electromagnetic radiation by using the recoiling direction of the recoil electron in a Compton camera using a semiconductor detector.
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公开(公告)号:US09484366B2
公开(公告)日:2016-11-01
申请号:US13774002
申请日:2013-02-22
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor: Kazuhisa Yamamura , Kenichi Sato
IPC: H01L31/107 , H01L27/14 , H01L27/144 , H01L27/146
CPC classification number: H01L27/1446 , H01L27/14 , H01L27/14603 , H01L27/14605 , H01L27/14636 , H01L31/107
Abstract: A photodiode array has a plurality of photodetector channels formed on an n-type substrate having an n-type semiconductor layer, with a light to be detected being incident to the photodetector channels. The array comprises: a p−-type semiconductor layer on the n-type semiconductor layer of the substrate; resistors is provided to each of the photodetector channels and is connected to a signal conductor at one end thereof; and an n-type separating part between the plurality of photodetector channels. The p−-type semiconductor layer forms a pn junction at the interface between the substrate, and comprises a plurality of multiplication regions for avalanche multiplication of carriers produced by the incidence of the light to be detected so that each of the multiplication regions corresponds to each of the photodetector channels.
Abstract translation: 光电二极管阵列具有形成在具有n型半导体层的n型衬底上的多个光电检测器通道,待检测的光入射到光电检测器通道。 阵列包括:衬底的n型半导体层上的p型半导体层; 电阻器被提供到每个光电检测器通道并且在其一端连接到信号导体; 以及在所述多个光电检测器通道之间的n型分离部。 p型半导体层在衬底之间的界面处形成pn结,并且包括用于由待检测的光的入射产生的载流子的雪崩乘法的多个乘法区域,使得每个乘法区域对应于每个 的光电检测器通道。
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