公开(公告)号：US20250107261A1

公开(公告)日：2025-03-27

申请号：US18976574

申请日：2024-12-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghoon PARK ,  Bumsuk KIM ,  Yunki LEE ,  Bomi KIM ,  Kwanhee LEE ,  Yoongi JOUNG

IPC: H01L27/146 ,  H04N25/71 ,  H04N25/75 ,  H04N25/77

Abstract: A pixel array including: a plurality of pixel groups, each pixel group including: a plurality of unit pixels respectively including photoelectric conversion elements disposed in a semiconductor substrate; trench structures disposed in the semiconductor substrate and extending in a vertical direction from a first surface of the semiconductor substrate to a second surface of the semiconductor substrate to electrically and optically separate the photoelectric conversion elements from each other; and a microlens disposed above or below the semiconductor substrate, the microlens covering all of the photoelectric conversion elements in the plurality of unit pixels to focus an incident light to the photoelectric conversion elements.

公开(公告)号：US20250024164A1

公开(公告)日：2025-01-16

申请号：US18771526

申请日：2024-07-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chulsoo CHOI ,  Bumsuk KIM ,  Junghun KIM ,  Jonghoon PARK ,  Yunki LEE

IPC: H04N25/13 ,  H04N23/55

Abstract: An image sensor includes a sensor substrate including a plurality of first photosensitive cells configured to sense light and a color separating lens array in an upper portion of the sensor substrate and including a plurality of first sub regions respectively corresponding to the plurality of first photosensitive cells, where each of the plurality of first sub regions include a plurality of first nano-posts, where the plurality of first sub regions include at least one first central sub region at a center of the color separating lens array and at least one first peripheral sub region at a periphery of the color separating lens array, and where the plurality of first nano-posts include at least one first nano-post in the at least one first central sub region and at least one second nano-post in the at least one first peripheral sub region and corresponding to the at least one first nano-post.

公开(公告)号：US20240258351A1

公开(公告)日：2024-08-01

申请号：US18631933

申请日：2024-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taesung LEE ,  Dongmin KEUM ,  Bumsuk KIM ,  Jinho KIM ,  Junsung PARK ,  Kwanghee LEE ,  Dongkyu LEE ,  Yunki LEE

IPC: H01L27/146 ,  H04N23/67

CPC classification number: H01L27/14627 ,  H01L27/14621 ,  H01L27/14643 ,  H04N23/672

Abstract: An image sensor includes a normal pixel, a first auto-focus (AF) pixel, and a second AF pixel, each of the normal pixel, the first AF pixel and the second AF pixel including a photodiode. The image sensor further includes a normal microlens disposed on the normal pixel, and a first AF microlens disposed on the first AF pixel and the second AF pixel. The photodiode of the normal pixel, the photodiode of the first AF pixel, and the photodiode of the second AF pixel are respectively disposed in photo-detecting areas of a semiconductor substrate. A height of the first AF microlens in a vertical direction from a top surface of the semiconductor substrate is greater than a height of the normal microlens in the vertical direction from the top surface of the semiconductor substrate.

公开(公告)号：US20240258350A1

公开(公告)日：2024-08-01

申请号：US18421468

申请日：2024-01-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon PARK ,  Yunki LEE ,  Jieun KIM ,  Keosung PARK ,  Hajin LIM ,  Taeksoo JEON ,  Hyunkyu CHOI ,  Jaesung HUR

IPC: H01L27/146

CPC classification number: H01L27/14625 ,  H01L27/14645

Abstract: Provided is an image sensor including a first substrate including a pixel area and a peripheral area adjacent to the pixel area, the pixel area including a plurality of pixels in a 2-dimensional array, a first wiring layer on a lower surface of the first substrate, an anti-reflective layer having a first refractive index, the anti-reflective layer being on an upper surface of the first substrate, and color filters on the anti-reflective layer corresponding to the pixel area and spaced apart from each other by a metal-free grid pattern.

公开(公告)号：US20240186348A1

公开(公告)日：2024-06-06

申请号：US18365522

申请日：2023-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taehan KIM ,  Dongmin KEUM ,  Bumsuk KIM ,  Jinho KIM ,  Yunki LEE

IPC: H01L27/146 ,  H04N25/704

CPC classification number: H01L27/14621 ,  H01L27/14627 ,  H04N25/704

Abstract: An image sensor includes: a chip structure including normal pixels and auto focus pixels; a grid structure disposed on the chip structure; and color filter regions defined by the grid structure over the chip structure. The color filter regions include normal filter regions and auto focus filter regions. The normal filter regions correspond to the normal pixels. The chip structure includes a first region at a first distance, and a second region a second distance greater than the first distance. The auto focus filter regions include a first auto focus filter region on the first region and a second auto focus filter region on the second region. A first width of a first grid portion disposed adjacent the first auto focus filter region among the grid structure is narrower than a second width of a second grid portion disposed adjacent the second auto focus filter region among the grid structure.

公开(公告)号：US20230122283A1

公开(公告)日：2023-04-20

申请号：US17812487

申请日：2022-07-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taehan KIM ,  Yunki LEE ,  Dongmin KEUM ,  Bumsuk KIM ,  Kwanghee LEE ,  Yeaju JANG

IPC: H04N5/369 ,  H01L27/146 ,  H04N5/3745

Abstract: An image sensor includes a pixel array in which a plurality of normal pixels and a plurality of autofocus (AF) pixels are disposed, and a logic circuit. The logic circuit provides an autofocus function using a phase difference between pixel signals obtained from each of the plurality of AF pixels. Each of the AF pixels includes a single AF lens disposed on a pair of pixel areas. An AF lens of the AF pixel spaced apart from a center of the pixel array may have an area larger than an area of the AF lens of the AF pixel adjacent to the center.

公开(公告)号：US20230017043A1

公开(公告)日：2023-01-19

申请号：US17746042

申请日：2022-05-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon PARK ,  Yunki LEE ,  Jinwoong NAMGOONG ,  Hyunseok SONG ,  Hyungkeun GWEON ,  Bumsuk KIM

IPC: H01L27/146 ,  G02B5/20 ,  G02B3/00

Abstract: Provided is an image sensor including a light sensing element, a planarization layer disposed on the light sensing element, a color filter array layer disposed on the planarization layer, the color filter array layer including color filters, and a microlens disposed on the color filter array layer, wherein the color filters include a green filter, a blue filter and a red filter, and wherein a refractive index of the green filter is greater than 1.7 for a green light wavelength range of 500 nm to 570 nm.