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公开(公告)号：US20230035346A1
公开(公告)日：2023-02-02
申请号：US17783685
申请日：2020-11-16
发明人： Akihiro SHIMADA , Mitsuhito MASE , Jun HIRAMITSU
IPC分类号： G01S7/4863 , G01S17/89 , H04N5/378 , H04N5/3745
摘要： In a light detection device, a control unit performs a first charge transfer process for transferring charge generated in a charge generation region to a charge storage region by applying an electric potential to a transfer gate electrode so that a potential energy of a region immediately below the transfer gate electrode is lower than a potential energy of the charge generation region and a first read process for reading an amount of charge stored in the charge storage region. In the first charge transfer process, the control unit applies an electric potential to an overflow gate electrode so that a potential energy of a region immediately below the overflow gate electrode is lower than the potential energy of the charge generation region.
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公开(公告)号：US20200212098A1
公开(公告)日：2020-07-02
申请号：US16643110
申请日：2018-07-19
IPC分类号： H01L27/148
摘要： The photosensitive region includes a first impurity region and a second impurity region having a higher impurity concentration than that of the first impurity region. The photosensitive region includes one end positioned away from the transfer section in the second direction and another end positioned closer to the transfer section in the second direction. A shape of the second impurity region in plan view is line-symmetric with respect to a center line of the photosensitive region along the second direction. A width of the second impurity region in the first direction increases in a transfer direction from the one end to the other end. An increase rate of the width of the second impurity region in each of sections, obtained by dividing the photosensitive region into n sections in the second direction, becomes gradually higher in the transfer direction. Here, n is an integer of two or more.
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公开(公告)号：US20170194370A1
公开(公告)日：2017-07-06
申请号：US15308668
申请日：2015-01-29
发明人： Mitsuhito MASE , Jun HIRAMITSU , Akihiro SHIMADA
IPC分类号： H01L27/146 , G01C3/08 , G01S17/36 , G01S7/491 , G01S17/89
CPC分类号： H01L27/14603 , G01C3/08 , G01S7/486 , G01S7/4914 , G01S7/4915 , G01S17/36 , G01S17/89 , H01L27/14612 , H01L27/14643
摘要： In any three of three range sensors consecutively aligned in a one-dimensional direction, first signal charge-accumulating regions are adjacent to each other in the one-dimensional direction in the range sensor positioned in a center of the three range sensors and the range sensor positioned closer to one side of the one-dimensional direction than the range sensor positioned in the center of the three range sensors, and the first signal charge-accumulating region and the second signal charge-accumulating region are adjacent to each other in the one-dimensional direction in the range sensor positioned in the center of the three range sensors and the range sensor positioned closer to an another side of the one-dimensional direction than the range sensor positioned in the center of the three range sensors.
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公开(公告)号：US20230171522A1
公开(公告)日：2023-06-01
申请号：US17922806
申请日：2021-03-17
发明人： Mitsuhito MASE , Masaru NAKANO , Jun HIRAMITSU , Akihiro SHIMADA , Hiroaki ISHII , Toshinori ITO , Yuma TANAKA
IPC分类号： H04N25/771 , H01L27/146
CPC分类号： H04N25/771 , H01L27/14643
摘要： A light detection device includes a controller that controls electric potentials of a charge collection electrode and a transfer gate electrode so that potential energy in a region immediately below the charge collection electrode is a first level, and potential energy in a region immediately below the transfer gate electrode is higher than the potential energy in the region immediately below the charge collection electrode in a first period, and so that the potential energy in the region immediately below the charge collection electrode is a second level higher than the first level, and the potential energy in the region immediately below the transfer gate electrode is lower than the potential energy in the region immediately below the charge collection electrode in a second period after the first period.
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公开(公告)号：US20230022384A1
公开(公告)日：2023-01-26
申请号：US17787981
申请日：2020-11-11
发明人： Mitsuhito MASE , Jun HIRAMITSU , Hiroaki ISHII , Yuma TANAKA , Toshinori ITO
IPC分类号： H01L27/146
摘要： A multiplying image sensor includes a semiconductor layer having a first surface and a second surface and a wiring layer provided on the second surface. The semiconductor layer includes a plurality of pixels arranged along the first surface. Each of the plurality of pixels includes a first semiconductor region, a second semiconductor region formed on the second surface side with respect to at least a part of the first semiconductor region and divided for each of the plurality of pixels, and a well region formed in the second semiconductor region so as to be separated from the first semiconductor region and forming a part of a pixel circuit. At least a part of the first semiconductor region and at least a part of the second semiconductor region form an avalanche multiplication region.
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公开(公告)号：US20170234983A1
公开(公告)日：2017-08-17
申请号：US15502031
申请日：2015-08-04
发明人： Mitsuhito MASE , Jun HIRAMITSU , Akihiro SHIMADA
IPC分类号： G01S17/10 , H01L27/148 , H04N5/374 , H01L31/113 , G01S17/89 , H04N5/376
摘要： A ranging method uses a light source and a range sensor. The range sensor includes a charge-generating area and first and second charge-accumulating areas. Charges generated in the charge-generating area are transferred to the first charge-accumulating area during a first period so as to be accumulated in the first charge-accumulating area and the second charge-accumulating area during a second period so as to be accumulated in the second charge-accumulating area. A distance d to an object OJ is arithmetized based on a quantity of charges accumulated in the first charge-accumulating area and a quantity of charges accumulated in the second charge-accumulating area. When pulse light is emitted from the light source, the pulse light whose light-intensity stable period within the emission period of the pulse light is set in advance to be longer than each of the first and second periods is emitted from the light source.
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公开(公告)号：US20230223418A1
公开(公告)日：2023-07-13
申请号：US17922803
申请日：2021-01-12
发明人： Jun HIRAMITSU , Mitsuhito MASE , Akihiro SHIMADA , Hiroaki ISHII , Toshinori ITO , Yuma TANAKA
IPC分类号： H01L27/146 , H01L31/107
CPC分类号： H01L27/1463 , H01L31/107
摘要： An optical sensor includes an avalanche multiplication region including a first multiplication region having a first conductive type and a second multiplication region having a second conductive type, each of the first multiplication region and the second multiplication region being formed in a layer shape, a charge collection region having the second conductive type disposed on a first side of the second multiplication region, and a first conductive region having the first conductive type disposed on the first side of the second multiplication region. The second multiplication region has a first portion overlapping the charge collection region in a thickness direction of the first multiplication region and the second multiplication region and a second portion overlapping the first conductive region in the thickness direction. A concentration of impurities in the first portion is higher than a concentration of impurities in the second portion.
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公开(公告)号：US20210132199A1
公开(公告)日：2021-05-06
申请号：US16322664
申请日：2017-05-30
发明人： Mitsuhito MASE , Jun HIRAMITSU , Akihiro SHIMADA
IPC分类号： G01S7/4863 , H01L27/146
摘要： A range sensor includes a silicon substrate and a transfer electrode. The silicon substrate includes a first principal surface and a second principal surface opposing each other. The silicon substrate is provided with a charge generation region configured to generate a charge in response to incident light and a charge collection region configured to collect charges from the charge generation region, on the first principal surface side. The transfer electrode is disposed between the charge generation region and the charge collection region on the first principal surface. A region of the second principal surface corresponding at least to the charge generation region is formed with a plurality of protrusions. The plurality of protrusions includes a slope inclined with respect to a thickness direction of the silicon substrate. A (111) plane of the silicon substrate is exposed as the slope at the protrusion. A height of the protrusion is 200 nm or more.
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公开(公告)号：US20180106902A1
公开(公告)日：2018-04-19
申请号：US15567645
申请日：2016-04-08
发明人： Mitsuhito MASE , Jun HIRAMITSU , Akihiro SHIMADA
CPC分类号： G01S17/10 , G01S7/486 , G01S7/4861 , G01S7/4865
摘要： The processing unit causes a light source unit to emit modulated light in one or more emission periods in a plurality of charge transfer cycles within a frame period from connection of an accumulating region to a reset potential to next connection of the accumulating region to the reset potential by controlling a reset switch, and increases the number of emission periods per charge transfer cycle within one frame period. The processing unit obtains, from a sensor unit, a plurality of read values corresponding to a charge amount accumulated in the accumulating region at an alternate point with the plurality of charge transfer cycles, in each of a plurality of read cycles corresponding to each of the plurality of charge transfer cycles. The processing unit calculates the distance based on the plurality of obtained read values.
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公开(公告)号：US20170031025A1
公开(公告)日：2017-02-02
申请号：US15302178
申请日：2015-04-17
发明人： Mitsuhito MASE , Jun HIRAMITSU , Akihiro SHIMADA
CPC分类号： G01S17/89 , G01S7/4914 , G01S7/4915 , G01S17/36 , H01L27/14603 , H01L27/14612 , H01L27/14643 , H04N5/3745
摘要： In a range image sensor, a plurality of range sensors are disposed in a one-dimensional direction. The plurality of range sensors include a photogate electrode, first and second signal charge accumulating regions disposed on one side of the photogate electrode, third and fourth signal charge accumulating regions disposed on the other side, first transfer electrodes for making charge flow into the first and fourth signal charge accumulating regions in response to a first transfer signal, and second transfer electrodes for making charge flow into the second and third signal charge accumulating regions in response to a second transfer signal.
摘要翻译： 在范围图像传感器中，多个范围传感器沿一维方向设置。 多个量程传感器包括光栅电极，设置在光栅电极的一侧的第一和第二信号电荷累积区，设置在另一侧的第三和第四信号电荷累积区，用于使电荷流入第一和第二信号电荷的第一传输电极， 响应于第一传送信号的第四信号电荷累积区域，以及响应于第二传送信号使电荷流入第二和第三信号电荷累积区域的第二传输电极。
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