Patents by Inventor Kee-won Kim
Kee-won Kim 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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Patent number: 10854677Abstract: Image sensors with improved performance and a higher degree of integration are provided. The image sensors include a substrate including a first surface and a second surface opposite to each other, a first organic photoelectric conversion layer on the first surface of the substrate, a first penetration via connected to the first organic photoelectric conversion layer and extending through the substrate, a first floating diffusion region in the substrate adjacent to the second surface of the substrate, and a first transistor structure on the second surface of the substrate, wherein the first transistor structure includes a semiconductor layer configured to connect the first penetration via and the first floating diffusion region, a gate electrode on the semiconductor layer, and a gate dielectric film between the semiconductor layer and the gate electrode.Type: GrantFiled: September 10, 2019Date of Patent: December 1, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Taek Soo Jeon, Kee Won Kim, Sang Hoon Uhm, Ki Joong Yoon, Ha Jin Lim
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Publication number: 20200243608Abstract: Image sensors with improved performance and a higher degree of integration are provided. The image sensors include a substrate including a first surface and a second surface opposite to each other, a first organic photoelectric conversion layer on the first surface of the substrate, a first penetration via connected to the first organic photoelectric conversion layer and extending through the substrate, a first floating diffusion region in the substrate adjacent to the second surface of the substrate, and a first transistor structure on the second surface of the substrate, wherein the first transistor structure includes a semiconductor layer configured to connect the first penetration via and the first floating diffusion region, a gate electrode on the semiconductor layer, and a gate dielectric film between the semiconductor layer and the gate electrode.Type: ApplicationFiled: September 10, 2019Publication date: July 30, 2020Inventors: Taek Soo JEON, Kee Won KIM, Sang Hoon UHM, Ki Joong YOON, Ha Jin LIM
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Patent number: 10249817Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.Type: GrantFiled: August 15, 2017Date of Patent: April 2, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-woong Kim, Kee-won Kim, Se-chung Oh, Yong-sung Park, Ju-hyun Kim
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Patent number: 10128433Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.Type: GrantFiled: October 24, 2016Date of Patent: November 13, 2018Assignee: Samsung Electronics Co., Ltd.Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
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Patent number: 10096650Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.Type: GrantFiled: November 28, 2017Date of Patent: October 9, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kwang-Seok Kim, Kee-Won Kim, Whan-Kyun Kim, Sang-Hwan Park, Young-Man Jang
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Publication number: 20180083067Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.Type: ApplicationFiled: November 28, 2017Publication date: March 22, 2018Inventors: Kwang-Seok KIM, Kee-Won KIM, Whan-Kyun KIM, Sang-Hwan PARK, Young-Man JANG
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Publication number: 20180026182Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.Type: ApplicationFiled: August 15, 2017Publication date: January 25, 2018Inventors: Ki-woong KIM, Kee-won KIM, Se-chung OH, Yong-sung PARK, Ju-hyun KIM
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Patent number: 9837468Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.Type: GrantFiled: July 6, 2016Date of Patent: December 5, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang-Seok Kim, Kee-Won Kim, Whan-Kyun Kim, Sang-Hwan Park, Young-Man Jang
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Patent number: 9773972Abstract: A magnetic device includes a free layer; a pinned layer; a tunnel barrier disposed between the free layer and the pinned layer; a polarization enhancement layer disposed between the tunnel barrier and the pinned layer; and a blocking layer disposed between the polarization enhancement layer and the pinned layer, wherein the blocking layer includes a first diffusion trap layer and a second diffusion trap layer disposed on the first diffusion trap layer.Type: GrantFiled: January 30, 2017Date of Patent: September 26, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ki-woong Kim, Kee-won Kim, Se-chung Oh, Yong-sung Park, Ju-hyun Kim
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Publication number: 20170110508Abstract: A magnetoresistive random access memory device includes a free layer, a tunnel barrier layer, an insulation barrier layer, a pinned layer, and a vertical polarizer structure. The tunnel barrier layer and the insulation barrier layer directly contacts different surfaces of the free layer. The pinned layer structure contacts the tunnel barrier layer and includes at least one pinned layer. The vertical polarizer structure contacts the insulation barrier layer and includes a plurality of magnetization multi-layered structures sequentially stacked. Each magnetization multi-layered structure includes a non-magnetic layer and a magnetic layer sequentially stacked. The pinned layer and the magnetic layer have magnetization directions anti-parallel to each other.Type: ApplicationFiled: July 6, 2016Publication date: April 20, 2017Inventors: Kwang-Seok KIM, Kee-Won KIM, Whan-Kyun KIM, Sang-Hwan PARK, Young-Man JANG
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Patent number: 9570674Abstract: A magnetic device includes a free layer including a first magnetization layer; a pinned layer including a second magnetization layer; and a tunnel barrier layer provided between the free layer and the pinned layer. At least one selected from the free layer and the pinned layer includes a synthetic antiferromagnetic (SAF) structure formed of a first ferromagnetic layer, a second ferromagnetic layer, and a ruthenium-rhodium (Ru—Rh) alloy layer provided between the first and second ferromagnetic layers.Type: GrantFiled: April 22, 2015Date of Patent: February 14, 2017Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kee-won Kim, Sang-hwan Park, Sang-yong Kim
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Patent number: 9570675Abstract: Magnetoresistive structures, magnetic random-access memory devices including the same, and methods of manufacturing the magnetoresistive structure, include a first magnetic layer having a magnetization direction that is fixed, a second magnetic layer corresponding to the first magnetic layer, wherein a magnetization direction of the second magnetic layer is changeable, and a magnetoresistance (MR) enhancing layer and an intermediate layer both between the first magnetic layer and the second magnetic layer.Type: GrantFiled: January 29, 2014Date of Patent: February 14, 2017Assignee: Samsung Electronics Co., Ltd.Inventors: Kee-won Kim, Kwang-seok Kim, Sung-chul Lee, Young-man Jang, Ung-hwan Pi
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Publication number: 20170040529Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: Ung-hwan PI, Kwang-seok KIM, Kee-won KIM, Sung-chul LEE, Young-man JANG
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Patent number: 9530478Abstract: A memory device using a spin hall effect, and methods of manufacturing and operating the memory device, include applying a first operational current to a bit line of the memory device such that a spin current is applied to a magnetic tunnel junction (MTJ) cell coupled to the bit line due to a material in the bit line, wherein the bit line is electrically connected to a word line via the MTJ cell, and the word line intersects the bit line.Type: GrantFiled: January 23, 2014Date of Patent: December 27, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
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Patent number: 9508925Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.Type: GrantFiled: August 3, 2015Date of Patent: November 29, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
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Patent number: 9437654Abstract: Magnetic memory devices may include a substrate, a circuit device on the substrate, a plurality of lower electrodes electrically connected to the circuit device, a magnetic tunnel junction (MTJ) structure commonly provided on the plurality of the lower electrodes, and a plurality of upper electrodes on the MTJ structure. The MTJ structure may include a plurality of magnetic material patterns and a plurality of insulation material patterns separating the magnetic material patterns from each other.Type: GrantFiled: May 19, 2015Date of Patent: September 6, 2016Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Chul Lee, Kwang-Seok Kim, Kee-Won Kim, Young-Man Jang, Ung-Hwan Pi
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Publication number: 20160093669Abstract: Magnetic memory devices may include a substrate, a circuit device on the substrate, a plurality of lower electrodes electrically connected to the circuit device, a magnetic tunnel junction (MTJ) structure commonly provided on the plurality of the lower electrodes, and a plurality of upper electrodes on the MTJ structure. The MTJ structure may include a plurality of magnetic material patterns and a plurality of insulation material patterns separating the magnetic material patterns from each other.Type: ApplicationFiled: May 19, 2015Publication date: March 31, 2016Inventors: Sung-Chul LEE, Kwang-Seok KIM, Kee-Won KIM, Young-Man JANG, Ung-Hwan PI
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Publication number: 20160079518Abstract: Provided is a magnetic memory device. The magnetic memory device includes a first magnetization layer, a tunnel barrier disposed on the first magnetization layer, a second magnetization layer disposed on the tunnel barrier, and a spin current assisting layer disposed on at least a portion of a sidewall of the second magnetization layer.Type: ApplicationFiled: August 3, 2015Publication date: March 17, 2016Inventors: Ung-hwan PI, Kwang-seok KIM, Kee-won KIM, Sung-chul LEE, Young-man JANG
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Patent number: 9236105Abstract: Magnetic memory devices include a magnetoresistive cell including a free layer having a variable magnetization direction and a pinned layer having a fixed magnetization direction, a bit line on the magnetoresistive cell and including a spin Hall effect material layer exhibiting a spin Hall effect and contacting the free layer; and a lower electrode under the magnetoresistive cell. A voltage is applied between the bit line and the lower electrode so that current passes through the magnetoresistive cell.Type: GrantFiled: February 19, 2014Date of Patent: January 12, 2016Assignee: Samsung Electornics Co., Ltd.Inventors: Ung-hwan Pi, Kwang-seok Kim, Kee-won Kim, Sung-chul Lee, Young-man Jang
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Patent number: 9230623Abstract: Magnetic memory devices, and methods of operating the same, include a magnetoresistive element including a free layer, a pinned layer, and a separation layer between the free layer and the pinned layer. The devices, and methods, further include a first conductive line connected to the free layer and configured to apply a Rashba field to, or induce the Rashba field in, the free layer, and a second conductive line spaced apart from the free layer and configured to apply an external magnetic field to the free layer. A magnetization direction of the free layer is switchable by application of the Rashba field and the external magnetic field to the free layer.Type: GrantFiled: June 21, 2013Date of Patent: January 5, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kwang-seok Kim, Ung-hwan Pi, Kee-won Kim, Sung-chul Lee, Young-man Jang