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公开(公告)号：US20240363660A1
公开(公告)日：2024-10-31
申请号：US18306517
申请日：2023-04-25
发明人： Hui Zang
IPC分类号： H01L27/146
CPC分类号： H01L27/1463 , H01L27/14649 , H01L27/14689
摘要： A pixel includes a semiconductor substrate having a first side and a second side. Extending from the first side is a first deep trench isolation (DTI) structure and a second DTI structure. The first DTI structure includes a wide portion and a narrow portion extending from the wide portion. A first width of the wide portion is greater than a second width of the narrow portion, and the wide portion extends to a first depth. The pixel further includes a photodiode region disposed in the semiconductor substrate between the first DTI structure and the second DTI structure. A cell deep trench isolation (CDTI) structure is disposed between the wide portion of the first DTI structure and the second DTI structure. The CDTI structure extends to a second depth. The first depth and the second depth extend a substantially equal distance from the first side of the semiconductor substrate.
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公开(公告)号：US20240355846A1
公开(公告)日：2024-10-24
申请号：US18752633
申请日：2024-06-24
发明人： Chun-Sheng FAN , Wei-Feng LIN
IPC分类号： H01L27/146 , H04N23/54
CPC分类号： H01L27/14618 , H01L27/14636 , H01L27/14683 , H04N23/54
摘要： A curved-surface image-sensor assembly has a porous carrier having a concave surface with a thinned image sensor bonded by an adhesive to its concave surface of the porous carrier; the porous carrier is mounted into a water-resistant package. The sensor assembly is made by fabricating a thinned, flexible, image-sensor integrated circuit (IC) and applying adhesive to a non-illuminated side of the IC; positioning the IC over a concave surface of a porous carrier; applying vacuum through the porous carrier to suck the IC onto the concave surface of the porous carrier; and curing the adhesive to bond the IC to the concave surface of the porous carrier.
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公开(公告)号：US12120426B2
公开(公告)日：2024-10-15
申请号：US17576816
申请日：2022-01-14
发明人： Victor Lenchenkov , Andreas Suess
CPC分类号： H04N23/672 , G02B5/1814 , G02B5/201 , G02B7/28 , H01L27/14621 , H01L27/14627 , H01L27/14645 , H04N25/11
摘要： An image sensor has diffractive microlenses over pixels with central structures and ring(s) of material having index of refraction different from that of background material. Disposed beneath the diffractive microlenses are photodiodes that permit determining ratios of illumination of peripheral photodiodes to illumination of central photodiodes of the pixels, and, in embodiments, circuitry for determining said ratio. In embodiments, the ratio is used to find illumination wavelengths; and in other embodiments the ratio is used to determine focus of an imaging lens providing illumination. A method determines color by passing light through a diffractive lens disposed above photodiodes of the diffractive pixel and determining color from illumination peripheral and central photodiodes. An autofocus method of determining focus includes passing light through a diffractive lens and determining focus from illumination of peripheral photodiodes and central photodiodes of the pixel. In embodiments, the central structures are disks and rings are round.
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公开(公告)号：US20240334085A1
公开(公告)日：2024-10-03
申请号：US18295207
申请日：2023-04-03
发明人： Rui Wang , Chengcheng Xu , Lihang Fan , Eiichi Funatsu
IPC分类号： H04N25/704 , G02B5/20 , H04N25/13 , H04N25/44 , H04N25/78
CPC分类号： H04N25/704 , G02B5/201 , H04N25/134 , H04N25/44 , H04N25/78
摘要： An imaging device includes a pixel array with 2×2 pixel circuits arranged in rows and columns. Each 2×2 pixel circuit includes 4 photodiodes. Bitlines are coupled to the 2×2 pixel circuits and a color filter array is disposed over photodiodes of the pixel array. The color filter array includes color filters having a first color, color filters having a second color, color filters having a third color. The photodiodes of each 2×2 pixel circuits are covered by one of the color filters. Photodiodes covered by color filters having the first color and photodiodes covered by color filters having the second color are configured to provide non-phase detection (non-PD) information. Photodiodes covered by color filters having the third color are configured to provide phase detection (PD) information. Half of the 2×2 pixel circuits have the photodiodes covered by color filters having the third color.
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5.发明公开公开(公告)号：US20240314464A1
公开(公告)日：2024-09-19
申请号：US18670698
申请日：2024-05-21
发明人： Woon Il Choi
IPC分类号： H04N25/75 , H01L27/146 , H04N25/59
CPC分类号： H04N25/75 , H01L27/14612 , H01L27/14643 , H04N25/59
摘要： A pixel circuit includes a photodiode configured to photogenerate image charge in response to incident light. A floating diffusion is coupled to receive the image charge from the photodiode. A transfer transistor is coupled between the photodiode and the floating diffusion to transfer the image charge from the photodiode to the floating diffusion. A reset transistor is coupled between a bias voltage source and the floating diffusion. A drain of the reset transistor is coupled to the bias voltage source. The reset transistor is configured to be switched in response to a reset control signal. A lateral overflow integration capacitor (LOFIC) including an insulating region is disposed between a first metal electrode and a second metal electrode. The first metal electrode is coupled to the drain of the reset transistor. The second metal electrode is coupled to a source of the reset transistor and selectively coupled to the floating diffusion.
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公开(公告)号：US12088937B2
公开(公告)日：2024-09-10
申请号：US17658559
申请日：2022-04-08
发明人： Xuelian Liu , Min Qu , Liang Zuo , Selcuk Sen , Hiroaki Ebihara , Rui Wang , Lihang Fan
IPC分类号： H04N25/709 , H04N25/78 , H04N25/704 , H04N25/75
CPC分类号： H04N25/709 , H04N25/78 , H04N25/704 , H04N25/75
摘要： An imaging device includes a pixel array of pixel circuits arranged in rows and columns. Bitlines are coupled to the pixel circuits. Clamp circuits are coupled to the bitlines. Each of the clamp circuits includes a clamp short transistor to a power line and a respective one of the bitlines. The clamp short transistor is configured to be switched in response to a clamp short enable signal. A first diode drop device is coupled to the power line. A clamp idle transistor is coupled to the first diode drop device such that the first diode drop device and the clamp idle transistor are coupled between the power line and the respective one of the bitlines. The clamp idle transistor is configured to be switched in response to a clamp idle enable signal.
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公开(公告)号：US20240282789A1
公开(公告)日：2024-08-22
申请号：US18171805
申请日：2023-02-21
发明人： Xiaowei Wang , Yin Qian , Zhiqiang Lin , Lindsay Grant
IPC分类号： H01L27/146
CPC分类号： H01L27/14618 , H01L27/1462 , H01L27/14627
摘要： An image sensor comprises an image sensor chip comprising a semiconductor substrate having a top surface and a plurality of microlenses disposed on the top surface; a cover glass having a first side in contact with air and a second side opposite to the first side; and a multi-layer structure disposed between the plurality of microlenses and the cover glass, which comprises: a bottom layer directly in contact with the plurality of microlenses, where the refractive index of the bottom layer is lower than the refractive index of the plurality of microlenses, and a top layer directly in contact with the second side of the cover glass, where the top layer is an optical glue made for bonding two optical elements.
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公开(公告)号：US12069391B2
公开(公告)日：2024-08-20
申请号：US17388820
申请日：2021-07-29
发明人： Andreas Suess , Zheng Yang
IPC分类号： H04N25/771 , G01S7/4865 , G01S17/894 , H04N25/705 , H04N25/75
CPC分类号： H04N25/771 , G01S7/4865 , G01S17/894 , H04N25/705 , H04N25/75
摘要： A pixel circuit includes a photodiode configured to photogenerate charge in response to reflected modulated light incident upon the photodiode. A first floating diffusion is configured to store a first portion of charge photogenerated in the photodiode. A first transfer transistor is configured to transfer the first portion of charge from the photodiode to the first floating diffusion in response to a first phase signal. A first storage node is configured to store the first portion of charge from the first floating diffusion. A first decoupling circuit has a first output responsive to a first input. The first input is coupled to the first floating diffusion and the first output is coupled to first storage node. A voltage swing at the first output is greater than a voltage swing at the first input.
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9.发明公开公开(公告)号：US20240244344A1
公开(公告)日：2024-07-18
申请号：US18154715
申请日：2023-01-13
发明人： Yifei Du , Zhiqiang Lin , Bill Phan , Woon Il Choi
IPC分类号： H04N25/59 , H01L27/146 , H04N25/771
CPC分类号： H04N25/59 , H01L27/14612 , H01L27/14643 , H04N25/771
摘要： A pixel circuit includes a photodiode configured to photogenerate image charge in response to incident light. A floating diffusion is coupled to receive the image charge from the photodiode. A transfer transistor is coupled between the photodiode and the floating diffusion. The transfer transistor is configured to transfer the image charge from the photodiode to the floating diffusion. A reset transistor is coupled between a reset voltage and the floating diffusion. A lateral overflow integration capacitor (LOFIC) network is coupled between the reset transistor and a bias voltage source. The LOFIC network includes a main LOFIC coupled between the reset transistor and the bias voltage source, and a plurality of subordinate capacitor-switch pairs, each including a subordinate LOFIC and a switch transistor coupled to the subordinate LOFIC. Each of the plurality of subordinate capacitor-switch pairs is coupled between the reset transistor and the bias voltage source.
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公开(公告)号：US20240241347A1
公开(公告)日：2024-07-18
申请号：US18098649
申请日：2023-01-18
发明人： I-Lung LU , Jau-Jan DENG , Kuang-Ju WANG
CPC分类号： G02B13/004 , G02B9/34
摘要： A compound lens includes four coaxially aligned lenses: first lens and, in order of increasing distance therefrom and on a same side thereof, a second lens, a third lens, and a fourth lens. The first lens and the third lens are negative lenses. The second lens and the fourth lens are positive lenses. An image-side surface of the second lens and an object-side surface of the third lens have respective radii of curvature of equal magnitude.
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