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公开(公告)号：US20240297191A1
公开(公告)日：2024-09-05
申请号：US18177826
申请日：2023-03-03
Applicant: OmniVision Technologies, Inc.
Inventor： Xiaodong Yang , Masao Sambongi , Chengming Liu , Chen Zhang
IPC: H01L27/146
CPC classification number: H01L27/14621 , H01L27/14627 , H01L27/14645
Abstract: In an embodiment, an image sensor comprises a pixel array having a minimal repeating unit, where the minimal repeating unit consists of 4×4 pixels including 12 green pixels, 2 blue pixels, and 2 red pixels, where a minimal repeating unit is immediately next to another minimal repeating unit in row and column directions. In another embodiment, an image sensor comprises a pixel array having a minimal repeating unit, where the minimal repeating unit consists of 8×8 pixels including 48 green pixels, 8 blue pixels, and 8 red pixels.
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公开(公告)号：US20230395627A1
公开(公告)日：2023-12-07
申请号：US17832395
申请日：2022-06-03
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Xiaodong Yang , Sylvia Shuoyu Zhang , John Li , Chengming Liu , Guansong Liu
IPC: H01L27/146
CPC classification number: H01L27/14627 , H01L27/14645
Abstract: Quad photodiode microlens arrangements, and associated systems and methods. In one embodiment, a plurality of pixels are arranged in rows and columns of a pixel array disposed in a semiconductor material. The plurality of pixels includes green (G) pixels, red (R) pixels, blue (B) pixels and clear (C) pixels. Each pixel comprises a plurality of photodiodes that are configured to receive incoming light through an illuminated surface of the semiconductor material. A plurality of small microlenses are distributed over individual photodiodes of clear (C) pixels. A plurality of large microlenses are distributed over individual green (G) pixels. A diameter of the small microlenses is smaller than a diameter of the large microlenses.
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公开(公告)号：US11252381B2
公开(公告)日：2022-02-15
申请号：US16711237
申请日：2019-12-11
Applicant: OmniVision Technologies, Inc.
Inventor： Chin Poh Pang , Guansong Liu , Xiaodong Yang , Boyang Zhang , Hongjun Li , Da Meng
Abstract: An image sensor includes a plurality of photodiodes, a plurality of color filters, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array, each of the plurality of photodiodes disposed within respective portions of a semiconductor material with a first lateral area. The plurality of color filters are arranged as a color filter array optically aligned with the photodiode array. Each of the plurality of color filters having a second lateral area greater than the first lateral area. The plurality of microlenses are arranged as a microlens array optically aligned with the color filter array and the photodiode array. Each of the plurality of microlenses have a third later area greater than the first lateral area and less than the second lateral area.
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公开(公告)号：US20210126033A1
公开(公告)日：2021-04-29
申请号：US16666129
申请日：2019-10-28
Applicant: OmniVision Technologies, Inc.
Inventor： Xiaodong Yang , Guansong Liu , Peng Lin , Chin Poh Pang , Da Meng
IPC: H01L27/146 , H04N9/04 , H04N5/232
Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.
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5.发明申请Image Sensor With Symmetric Multi-Pixel Phase-Difference Detectors, And Associated Methods 有权具有对称多像素相位差检测器的图像传感器及相关方法公开(公告)号：US20170041525A1
公开(公告)日：2017-02-09
申请号：US14819021
申请日：2015-08-05
Applicant: OmniVision Technologies, Inc.
Inventor： Guansong Liu , Jizhang Shan , Chin Poh Pang , Xiaodong Yang
CPC classification number: H04N5/23212 , G02B5/201 , G02B7/36 , G03B13/36 , H04N9/045
Abstract: An imaging system with on-chip phase-detection includes an image sensor with symmetric multi-pixel phase-difference detectors. Each symmetric multi-pixel phase-difference detector includes (a) a plurality of pixels forming an array and each having a respective color filter thereon, each color filter having a transmission spectrum and (b) a microlens at least partially above each of the plurality of pixels and having an optical axis intersecting the array. The array, by virtue of each transmission spectrum, has reflection symmetry with respect to both (a) a first plane that includes the optical axis and (b) a second plane that is orthogonal to the first plane. The imaging system includes a phase-detection row pair, which includes a plurality of symmetric multi-pixel phase-difference detectors in a pair of adjacent pixel rows and a pair, and an analogous phase-detection column pair.
Abstract translation: 具有片上相位检测的成像系统包括具有对称多像素相位差检测器的图像传感器。 每个对称多像素相位差检测器包括（a）形成阵列的多个像素，每个具有各自的滤色器，每个滤色器具有透射光谱，和（b）至少部分地高于每个多个像素的微透镜 的像素并且具有与阵列相交的光轴。 该阵列凭借每个透射光谱具有相对于（a）包括光轴的第一平面和（b）与第一平面正交的第二平面的反射对称性。 成像系统包括相位检测行对，其包括一对相邻像素行和一对中的多个对称多像素相位差检测器，以及类似的相位检测列对。
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Patent Agency Ranking
公开(公告)号：US11367743B2
公开(公告)日：2022-06-21
申请号：US16666129
申请日：2019-10-28
Applicant: OmniVision Technologies, Inc.
Inventor： Xiaodong Yang , Guansong Liu , Peng Lin , Chin Poh Pang , Da Meng
IPC: H01L27/146 , H04N5/232 , H04N9/04
Abstract: An image sensor pixel includes a plurality of photodiodes, a shared microlens, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array with each of the plurality of photodiodes disposed within a semiconductor material. The shared microlens is optically aligned with a group of neighboring photodiodes included in the plurality of photodiodes. Each of the plurality of microlenses are optically aligned with an individual one of the plurality of photodiodes other than the group of neighboring photodiodes. The plurality of microlenses laterally surrounds the shared microlens.
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公开(公告)号：US20210185286A1
公开(公告)日：2021-06-17
申请号：US16711237
申请日：2019-12-11
Applicant: OmniVision Technologies, Inc.
Inventor： Chin Poh Pang , Guansong Liu , Xiaodong Yang , Boyang Zhang , Hongjun Li , Da Meng
Abstract: An image sensor includes a plurality of photodiodes, a plurality of color filters, and a plurality of microlenses. The plurality of photodiodes are arranged as a photodiode array, each of the plurality of photodiodes disposed within respective portions of a semiconductor material with a first lateral area. The plurality of color filters are arranged as a color filter array optically aligned with the photodiode array. Each of the plurality of color filters having a second lateral area greater than the first lateral area. The plurality of microlenses are arranged as a microlens array optically aligned with the color filter array and the photodiode array. Each of the plurality of microlenses have a third later area greater than the first lateral area and less than the second lateral area.
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公开(公告)号：US20230395628A1
公开(公告)日：2023-12-07
申请号：US17832399
申请日：2022-06-03
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Chin Poh Pang , Wei Deng , Chen-Wei Lu , Da Meng , Guansong Liu , Yin Qian , Xiaodong Yang , Hongjun Li , Zhiqiang Lin , Chao Niu
IPC: H01L27/146
CPC classification number: H01L27/14627 , H01L27/14645
Abstract: Half Quad Photodiode (QPD) for improving QPD channel imbalance. In one embodiment, an image sensor includes a plurality of pixels arranged in rows and columns of a pixel array that is disposed in a semiconductor material. Each pixel includes a plurality of subpixels. Each subpixel comprises a plurality of first photodiodes, a plurality of second photodiodes and a plurality of third photodiodes. The plurality of pixels are configured to receive incoming light through an illuminated surface of the semiconductor material. A plurality of small microlenses are individually distributed over individual first photodiodes and individual second photodiodes of each subpixel. A plurality of large microlenses are each distributed over a plurality of third photodiodes of each subpixel. A diameter of the small microlenses is smaller than a diameter of the large microlenses.
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公开(公告)号：US20230395626A1
公开(公告)日：2023-12-07
申请号：US17832335
申请日：2022-06-03
Applicant: OMNIVISION TECHNOLOGIES, INC.
Inventor： Xiaodong Yang , Guansong Liu , Wei Deng , Chin Poh Pang , Da Meng , Hongjun Li
IPC: H01L27/146 , H04N5/232 , H04N5/369
CPC classification number: H01L27/14627 , H01L27/14645 , H04N5/232122 , H04N5/36961
Abstract: Image sensors for Phase-Detection Auto Focus (PDAF) are provided. An image sensor includes a pixel including a plurality of photodiodes disposed in a semiconductor material according to an arrangement. The arrangement defines a first image subpixel comprising a plurality of first photodiodes, a second image subpixel comprising a plurality of second photodiodes, and a third image subpixel including a plurality of third photodiodes, and a phase detection subpixel comprising a first photodiode, a second photodiode, or a third photodiodes. The pixel can include a plurality of first micro-lenses disposed individually overlying at least a subset of the plurality of photodiodes of the first, second and third image subpixels. The pixel can also include a second micro-lens disposed overlying the phase detection subpixel, a first micro-lens of the first micro-lenses having a first radius less than a second radius of the second micro-lens.
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10.发明授权公开(公告)号：US09807294B2
公开(公告)日：2017-10-31
申请号：US14819021
申请日：2015-08-05
Applicant: OmniVision Technologies, Inc.
Inventor： Guansong Liu , Jizhang Shan , Chin Poh Pang , Xiaodong Yang
CPC classification number: H04N5/23212 , G02B5/201 , G02B7/36 , G03B13/36 , H04N9/045
Abstract: An imaging system with on-chip phase-detection includes an image sensor with symmetric multi-pixel phase-difference detectors. Each symmetric multi-pixel phase-difference detector includes (a) a plurality of pixels forming an array and each having a respective color filter thereon, each color filter having a transmission spectrum and (b) a microlens at least partially above each of the plurality of pixels and having an optical axis intersecting the array. The array, by virtue of each transmission spectrum, has reflection symmetry with respect to both (a) a first plane that includes the optical axis and (b) a second plane that is orthogonal to the first plane. The imaging system includes a phase-detection row pair, which includes a plurality of symmetric multi-pixel phase-difference detectors in a pair of adjacent pixel rows and a pair, and an analogous phase-detection column pair.
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