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公开(公告)号：US12210960B2
公开(公告)日：2025-01-28
申请号：US17205790
申请日：2021-03-18
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Joon Young Kwak , Suyoun Lee , Inho Kim , Jong-Keuk Park , Kyeong Seok Lee , Jaewook Kim , Jongkil Park , YeonJoo Jeong , Gyuweon Hwang
IPC: G06N3/063 , G11C16/04 , G11C16/10 , H01L29/792
Abstract: Embodiments of inventive concepts relate to a neuromorphic circuit including a flash memory-based spike regulator capable of generating a stable spike signal with a small number of devices. The neuromorphic circuit may generate a simple and stable spike signal using a flash memory-based spike regulator. Therefore, it is possible to implement a semiconductor neuromorphic circuit at low power and low cost by using the spike regulator of the present invention. Example embodiments of inventive concepts provide a neuromorphic circuit comprising a control signal generator for generating a control signal for generating a pulse signal; and a spike regulator for generating a spike signal in response to the control signal. Wherein the spike regulator comprises a first transistor for switching an input signal transmitted to one terminal to the other terminal in response to the control signal; and a first flash memory type transistor having a drain terminal connected to the other terminal of the first transistor and transferring the switched input signal to a source terminal as a spike signal.
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公开(公告)号：US11800705B2
公开(公告)日：2023-10-24
申请号：US17538747
申请日：2021-11-30
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Joon Young Kwak , Eunpyo Park , Suyoun Lee , Inho Kim , Jong-Keuk Park , Jaewook Kim , Jongkil Park , YeonJoo Jeong
IPC: H01L29/788 , H01L29/43 , H01L29/423 , H10B41/30 , H01L29/66
CPC classification number: H10B41/30 , H01L29/42324 , H01L29/437 , H01L29/66825 , H01L29/788
Abstract: A flash memory device is provided. The flash memory device is disposed on a substrate, a channel layer made of a two-dimensional material, sources and drains disposed at both ends of the channel layer, a tunneling insulating layer having a first dielectric constant and a tunneling insulating layer disposed on the channel layer, a floating gate made of a two-dimensional material, a blocking insulating layer disposed on the floating gate and having a second dielectric constant greater than the first dielectric constant, and an upper gate disposed on the blocking insulating layer.
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公开(公告)号：US20190157481A1
公开(公告)日：2019-05-23
申请号：US16111805
申请日：2018-08-24
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Doh-Kwon LEE , Jangmi Lee , Inho Kim , Jeung-hyun Jeong
IPC: H01L31/0463 , H01L31/0224 , H01L31/18 , G03F7/20
Abstract: According to an aspect of the present invention, there is provided a method of manufacturing a compound thin film, which includes configuring an electrodeposition circuit by connecting an electrolytic solution, which is manufactured by mixing a predetermined precursor with a solvent, and an electrochemical cell, which includes a working electrode in a form of an electrode at which a specific pattern is patterned on a predetermined substrate, to a voltage application device or a current application device, and applying a reduction voltage or current to the working electrode using the voltage application device or the current application device, and selectively electrodepositing a thin film in some region of the electrode along a shape of the electrode at which the specific pattern is patterned.
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公开(公告)号：US11766548B2
公开(公告)日：2023-09-26
申请号：US17153969
申请日：2021-01-21
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , Industry-University Cooperation Foundation Hanyang University ERICA Campus
Inventor： Myoung-Ryul Ok , So Yeon Kim , Yoon Ki Joung , Yu Chan Kim , Hyun Kwang Seok , Hyung-Seop Han , Hojeong Jeon , Hyunseon Seo , Inho Kim , Kyoung Won Park , Yongwoo Chung , Jaekyun Kim
CPC classification number: A61M37/0015 , A61N5/062 , A61M2037/0023 , A61M2037/0053
Abstract: Provided are phototherapeutic needle patches usable for phototherapy by using needle patches capable of injecting drugs or cosmetic substances to patients, and methods of manufacturing the same. A phototherapeutic needle patch may include a patch body attachable to skin of a patient, at least one microneedle protruding from the patch body, one end of the microneedle configured to deliver a drug through stratum corneum of the skin to inner tissues of the skin, and light grooves formed in a concave shape along a length direction of the microneedle in such a manner that therapeutic light radiated from a light source for phototherapy easily penetrates into the skin along the microneedle.
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Patent Agency Ranking
公开(公告)号：US11431291B1
公开(公告)日：2022-08-30
申请号：US17467457
申请日：2021-09-07
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Suyoun Lee , Seon Jeong Kim , Jong-Keuk Park , Inho Kim , Kyeong Seok Lee , Gyu Weon Hwang , Joon Young Kwak , Jaewook Kim , Yeonjoo Jeong , Jongkil Park
Abstract: A nano-oscillator device includes a switching element configured to be switched to an ON state at a threshold voltage or above and switched to an OFF state below a holding voltage; and a load element connected to the switching element in series. In the nano-oscillator device, vibration characteristics are implemented by using a switching element and a load element connected thereto in series. Also, the oscillation frequency of the output waveform of the oscillator may be adjusted in real time according to a gate voltage by using a field effect transistor serving as a load element. Using a synchronization characteristic in which the oscillation frequency and phase are locked with respect to an external input, it is possible to implement a computing system based on a network in which a plurality of oscillator devices are coupled.
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公开(公告)号：US09482798B2
公开(公告)日：2016-11-01
申请号：US14219506
申请日：2014-03-19
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Kyeong Seok Lee , Won Mok Kim , Taek Sung Lee , Wook Seong Lee , Doo Seok Jeong , Inho Kim
CPC classification number: G02B5/206 , B82Y20/00 , C23C14/0015 , C23C14/0688 , C23C14/3464 , G02B5/008 , G02B5/26 , Y10S977/932
Abstract: A plasmonic nano-color coating layer includes a composite layer including a plurality of metal particle layers and a plurality of matrix layers and having a periodic multilayer structure in which the metal particle layers and the matrix layers are alternately arranged, a dielectric buffer layer located below the composite layer, and a mirror layer located below the dielectric buffer layer, wherein the color of the plasmonic nano-color coating layer is determined based on a nominal thickness of the metal particle layer and a separation between the metal particle layers.
Abstract translation: 等离子体激光纳米彩色涂层包括复合层，该复合层包括多个金属颗粒层和多个矩阵层，并且具有周期性多层结构，其中金属颗粒层和矩阵层交替布置，介质缓冲层位于下面 复合层和位于介质缓冲层下面的镜层，其中基于金属颗粒层的标称厚度和金属颗粒层之间的间隔来确定等离子体激元纳米彩色涂层的颜色。
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公开(公告)号：US11031517B2
公开(公告)日：2021-06-08
申请号：US16111805
申请日：2018-08-24
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Doh-Kwon Lee , Jangmi Lee , Inho Kim , Jeung-hyun Jeong
IPC: H01L31/0463 , G03F7/20 , H01L31/18 , H01L31/0224 , H01L31/0445 , H01L31/032
Abstract: According to an aspect of the present invention, there is provided a method of manufacturing a compound thin film, which includes configuring an electrodeposition circuit by connecting an electrolytic solution, which is manufactured by mixing a predetermined precursor with a solvent, and an electrochemical cell, which includes a working electrode in a form of an electrode at which a specific pattern is patterned on a predetermined substrate, to a voltage application device or a current application device, and applying a reduction voltage or current to the working electrode using the voltage application device or the current application device, and selectively electrodepositing a thin film in some region of the electrode along a shape of the electrode at which the specific pattern is patterned.
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公开(公告)号：US10697073B2
公开(公告)日：2020-06-30
申请号：US15608082
申请日：2017-05-30
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Wook Seong Lee , Young-Jin Ko , Young Joon Baik , Jong-Keuk Park , Kyeong Seok Lee , Inho Kim , Doo Seok Jeong
Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.
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9.发明授权公开(公告)号：US09726788B2
公开(公告)日：2017-08-08
申请号：US14253522
申请日：2014-04-15
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Kyeong Seok Lee , Won Mok Kim , Taek Sung Lee , Wook Seong Lee , Doo Seok Jeong , Inho Kim
CPC classification number: G02B5/008 , B82Y15/00 , B82Y40/00 , G01N21/554 , G02B5/0278 , G03F7/2014 , G03F7/70375
Abstract: A method for fabricating a nanoantenna array may include forming a resist layer on a substrate, forming a focusing layer having a dielectric microstructure array on the resist layer, diffusing light one-dimensionally in a specific direction by using a linear diffuser, forming an anisotropic pattern on the resist layer by illuminating the light diffused by the linear diffuser on the focusing layer and the resist layer, depositing a material suitable for a plasmonic resonance onto the substrate and the resist layer on which the pattern is formed, and forming a nanoantenna array on the substrate by removing the resist layer and the material deposited on the resist layer. A light diffusing angle by the linear diffuser and a size of the dielectric microstructure are determined based on an aspect ratio of the pattern to be formed.
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