Patents by Inventor Yun-Ki Lee
Yun-Ki Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220190017Abstract: An image sensor in which a shading phenomenon is decreased and the quality is increased is provided. The image sensor includes a light-receiving region including a plurality of unit pixels. The image sensor further includes a first region with unit pixels adjacent to a center of the light-receiving region, and a second region with the unit pixels spaced apart from the center of the light-receiving region. In both regions, a plurality of color filters corresponding to the plurality of unit pixels is disposed on a first face of the substrate, as well as a grid pattern interposed between the plurality of color filters defining boundaries between the unit pixels. A width of the grid pattern in the second region is greater than a width of the grid pattern in the first region, thereby adjusting light receiving areas near the edge of the image sensor to correct for a shading phenomenon.Type: ApplicationFiled: September 1, 2021Publication date: June 16, 2022Inventors: Jun Sung Park, Jin Ho Kim, Yun Ki Lee, Bum Suk Kim, Jung-Saeng Kim, Dong Kyu Lee, Tae Sung Lee
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Patent number: 11355541Abstract: An image sensor includes a semiconductor layer including a first section and a second section, the semiconductor layer having a first surface and a second surface that face each other; a device isolation layer in the semiconductor layer and defining a plurality of pixels; a first grid pattern on the first surface of the semiconductor layer over the first section; and a light-shield pattern on the first surface of the semiconductor layer over the second section. A top surface of the first grid pattern is located at a first level, a top surface of the light-shield pattern is located at a second level, the first level is lower than the second level, and the first and second levels are defined with respect to the first surface of the semiconductor layer.Type: GrantFiled: December 11, 2019Date of Patent: June 7, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Yun Ki Lee, Jung-Saeng Kim, Hyungeun Yoo
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Patent number: 11297219Abstract: An image sensor is disclosed. The image sensor may include pixel groups, which are two-dimensionally arranged on a substrate, and each of the pixel groups including a plurality of pixels. The image sensor may also include a light-blocking pattern, which is disposed on the substrate and between the pixels. The pixel groups may include first image pixel groups sensing a first light, second image pixel groups sensing a second light, and an auto-focus (AF) pixel group detecting a phase. The AF pixel group may include a first AF pixel and a second AF pixel adjacent to each other, and the light-blocking pattern may be absent on the substrate between the first AF pixel and the second AF pixel.Type: GrantFiled: April 13, 2020Date of Patent: April 5, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bumsuk Kim, Kwanhee Lee, Yun Ki Lee
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Patent number: 11211420Abstract: An image sensor includes a substrate including a plurality of pixel regions and having a trench between the pixel regions, a photoelectric conversion part in the substrate of each of the pixel regions, and a device isolation pattern in the trench. The device isolation pattern defines an air gap. The device isolation pattern has an intermediate portion and an upper portion narrower than the intermediate portion.Type: GrantFiled: September 8, 2020Date of Patent: December 28, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun Ki Lee, Minwook Jung
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Publication number: 20210384234Abstract: In some example embodiments, a back side illumination (BSI) image sensor may include a pixel configured to generate electrical signals in response to light incident on a back side of a substrate. In some example embodiments, the pixel includes, a photodiode, a device isolation film adjacent to the photodiode, a dark current suppression layer above the photodiode, a light shield grid above the photodiode and including an opening area of 1 to 15% of an area of the pixel, a light shielding filter layer above the light shield grid, a planarization layer above the light shielding filter layer, a lens above the planarization layer, and/or an anti-reflective film between the photodiode and the lens.Type: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Applicant: Samsung Electronics Co., Ltd.Inventors: Yun Ki LEE, Jong Hoon PARK, Jun Sung PARK
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Patent number: 11121167Abstract: In some example embodiments, a back side illumination (BSI) image sensor may include a pixel configured to generate electrical signals in response to light incident on a back side of a substrate. In some example embodiments, the pixel includes, a photodiode, a device isolation film adjacent to the photodiode, a dark current suppression layer above the photodiode, a light shield grid above the photodiode and including an opening area of 1 to 15% of an area of the pixel, a light shielding filter layer above the light shield grid, a planarization layer above the light shielding filter layer, a lens above the planarization layer, and/or an anti-reflective film between the photodiode and the lens.Type: GrantFiled: June 25, 2019Date of Patent: September 14, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Yun Ki Lee, Jong Hoon Park, Jun Sung Park
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Patent number: 11101314Abstract: In some example embodiments, a back side illumination (BSI) image sensor may include a pixel configured to generate electrical signals in response to light incident on a back side of a substrate. In some example embodiments, the pixel includes, a photodiode, a device isolation film adjacent to the photodiode, a dark current suppression layer above the photodiode, a light shield grid above the photodiode and including an opening area of 1 to 15% of an area of the pixel, a light shielding filter layer above the light shield grid, a planarization layer above the light shielding filter layer, a lens above the planarization layer, and/or an anti-reflective film between the photodiode and the lens.Type: GrantFiled: January 29, 2020Date of Patent: August 24, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Yun Ki Lee, Jong Hoon Park, Jun Sung Park
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Publication number: 20210244301Abstract: An electronic device may a main body; a sensor part disposed on a side of the main body; and a processor configured to control a display to display a first graphical object related to a contact state of a finger based on information related to the contact state of the finger received from the sensor part before measurement of a bio-signal; and control the display to display a second graphical object related to a contact force of the finger based on information related to the contact force of the finger received from the sensor part during measurement of the bio-signal.Type: ApplicationFiled: December 28, 2020Publication date: August 12, 2021Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byung Hoon KO, Youn Ho KIM, Seung Woo NOH, Jong Hoon PARK, Sung Mo AHN, Eun Ju YEOM, Yun Ki LEE, Jong Wook LEE, Tak Hyung LEE, Jeong Eun HWANG
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Patent number: 11081514Abstract: An image sensor includes a substrate including a light-receiving region and a light-shielding region, a device isolation pattern in the substrate of the light-receiving region to define active pixels, and a device isolation region in the substrate of the light-shielding region to define reference pixels. An isolation technique of the device isolation pattern is different from that of the device isolation region.Type: GrantFiled: June 22, 2020Date of Patent: August 3, 2021Assignee: Samsung Electronics Co., Ltd.Inventor: Yun Ki Lee
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Patent number: 11075243Abstract: An image sensor includes a substrate including a light-receiving region and a light-shielding region, a device isolation pattern in the substrate of the light-receiving region to define active pixels, and a device isolation region in the substrate of the light-shielding region to define reference pixels. An isolation technique of the device isolation pattern is different from that of the device isolation region.Type: GrantFiled: June 22, 2020Date of Patent: July 27, 2021Assignee: Samsung Electronics Co., Ltd.Inventor: Yun Ki Lee
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Publication number: 20210196761Abstract: Disclosed are a multilayered cell sheet of cardiac stem cells (CSCs) and a method of manufacturing the same. In particular, the present disclosure provides a method of manufacturing a multilayered cell sheet according to a single step culture procedure by using, as a three-dimensional matrix, a biodegradable natural polymer hydrogel and embedding CSCs in the hydrogel. The multilayered cell sheet of the present disclosure does not require any special device for the manufacturing, is manageable with good physicomechanical property, increases a cell engraftment rate after transplantation based on sufficient accumulation of various growth and protective factors and extracellular matrix between cells, and is also self-assembled by the cell-mediated hydrogel compaction, making nutrients transfer easy. Therefore, the multilayered cell sheet of the CSCs is expected to be usefully applicable as a therapeutic agent for myocardium regeneration.Type: ApplicationFiled: December 18, 2017Publication date: July 1, 2021Applicants: INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATIONInventors: Young-Il YANG, Ki-Dong PARK, Won-Jin LEE, Min-Young CHOI, Kyung-Min PARK, Yun-Ki LEE
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Patent number: 11031424Abstract: An image sensor includes a photoelectric conversion layer including a plurality of first photoelectric conversion elements and a plurality of second photoelectric conversion elements adjacent to the first photoelectric conversion elements. A light shield layer shields the second photoelectric conversion elements and has respective openings therein that provide light transmission to respective ones of the first photoelectric conversion elements. The image sensor further includes an array of micro-lenses on the photoelectric conversion layer, each of the micro-lenses overlapping at least one of the first photoelectric conversion elements and at least one of the second photoelectric conversion elements.Type: GrantFiled: May 1, 2019Date of Patent: June 8, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun Ki Lee, Bumsuk Kim, Jonghoon Park, Junsung Park
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Publication number: 20210102023Abstract: The present invention relates to a photo-cross-linkable shape-memory polymer and a preparation method therefor. The shape-memory polymer according to one embodiment of the present invention comprises a photo-cross-linkable functional group, and thus a shape-memory polymer having a melting point suitable for a physiological or medical application device can be provided. Particularly, a method for preparing the shape-memory polymer, according to one embodiment of the present invention, uses a catalyst for inducing the simultaneous ring-opening polymerization of two monomers (CL, GMA) during synthesis of the shape-memory polymer, thereby enabling the synthesis time of the shape-memory polymer to be reduced, and shape-memory polymers having various melting points can be readily prepared by controlling the introduction amounts of CL and GMA.Type: ApplicationFiled: January 26, 2018Publication date: April 8, 2021Inventors: Hak-Joon Sung, Yun Ki Lee
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Patent number: 10888621Abstract: Provided are an injectable tissue adhesive hydrogel including gamma-cyclodextrin (?-CD). When such an injectable tissue adhesive hydrogel including the ?-CD is used as a skin glue, based on a fact that the ?-CD has a bigger hydrophobic cavity than that of ?- and ?-CDs, the injectable tissue adhesive hydrogel including the ?-CD has stronger interactions than host-guest interactions. In addition, hydrogen bonding in the injectable tissue adhesive hydrogel including the ?-CD can improve both cohesiveness and adhesiveness of gelatin. The injectable tissue adhesive hydrogel including the ?-CD having excellent cell viability is used for adhesion of a skin incision, to thereby effectively promote tissue regeneration.Type: GrantFiled: March 31, 2017Date of Patent: January 12, 2021Assignees: AJOU UNIVERSITY INDUSTRY—ACADEMIC COOPERATION FOUNDATION, INCHEON UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Ki Dong Park, Kyung Min Park, Yun Ki Lee, Thi Thai Thanh Hoang, Thi Phuong Le
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Publication number: 20210005657Abstract: Image sensors are provided. The image sensors may include a plurality of unit pixels and a color filter array on the plurality of unit pixels. The color filter array may include a color filter unit including four color filters that are arranged in a two-by-two array, and the color filter unit may include two yellow color filters, a cyan color filter, and one of a red color filter or a green color filter.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Inventors: Bomi KIM, BumSuk KIM, Jung-Saeng KIM, Yun Ki LEE, Taesub JUNG
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Publication number: 20200403014Abstract: An image sensor includes a substrate including a plurality of pixel regions and having a trench between the pixel regions, a photoelectric conversion part in the substrate of each of the pixel regions, and a device isolation pattern in the trench. The device isolation pattern defines an air gap. The device isolation pattern has an intermediate portion and an upper portion narrower than the intermediate portion.Type: ApplicationFiled: September 8, 2020Publication date: December 24, 2020Applicant: Samsung Electronics Co., Ltd.Inventors: Yun Ki LEE, Minwook JUNG
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Publication number: 20200396388Abstract: An image sensor is disclosed. The image sensor may include pixel groups, which are two-dimensionally arranged on a substrate, and each of the pixel groups including a plurality of pixels. The image sensor may also include a light-blocking pattern, which is disposed on the substrate and between the pixels. The pixel groups may include first image pixel groups sensing a first light, second image pixel groups sensing a second light, and an auto-focus (AF) pixel group detecting a phase. The AF pixel group may include a first AF pixel and a second AF pixel adjacent to each other, and the light-blocking pattern may be absent on the substrate between the first AF pixel and the second AF pixel.Type: ApplicationFiled: April 13, 2020Publication date: December 17, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Bumsuk KIM, Kwanhee LEE, Yun Ki LEE
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Patent number: 10861891Abstract: An electronic device may include a photoelectric element, a shielding layer on the photoelectric element, and a color filter structure on the shielding layer. The shielding layer may define a first opening over the photoelectric element. The color filter structure may define a second opening over the photoelectric element and the first opening. The color filter structure may appear dark from a view facing the color filter structure.Type: GrantFiled: January 23, 2020Date of Patent: December 8, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Bum Suk Kim, Yun Ki Lee, Jung-Saeng Kim, Jong Hoon Park, Jun Sung Park, Chang Rok Moon
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Patent number: 10854655Abstract: An image sensor includes a substrate including a light-receiving region and a light-shielding region, a device isolation pattern in the substrate of the light-receiving region to define active pixels, and a device isolation region in the substrate of the light-shielding region to define reference pixels. An isolation technique of the device isolation pattern is different from that of the device isolation region.Type: GrantFiled: October 25, 2019Date of Patent: December 1, 2020Assignee: Samsung Electronics Co., Ltd.Inventor: Yun Ki Lee
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Patent number: RE48755Abstract: An image sensor is provided. The image sensor includes a substrate, a first interlayer insulating layer, a first metal line, and a shielding structure. The substrate includes a pixel array, a peripheral circuit area, and an interface area disposed between the pixel array and the peripheral circuit area. The first interlayer insulating layer is formed on a first surface of the substrate. The first metal line is disposed on the first interlayer insulating layer of the pixel array. The second interlayer insulating layer is disposed on the first interlayer insulating layer wherein the second interlayer insulating layer covers the first metal line. The shielding structure passes through the substrate in the interface area wherein the shielding structure electrically insulates the pixel array of the substrate and the peripheral circuit area.Type: GrantFiled: February 5, 2019Date of Patent: September 28, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yun-Ki Lee, Chang-Rok Moon, Min-Wook Jung