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公开(公告)号:US20220153946A1
公开(公告)日:2022-05-19
申请号:US17528006
申请日:2021-11-16
Inventor: Jeong Hun KIM , Seung Eon MOON , Jong Pil IM
Abstract: The present disclosure provides is a method of manufacturing a flexible pressure sensor by forming the polymer support and the conductive particles from a single uniform solution and performing a curing of the polymer support and a growth of the conductive particles in a continuous process. The method of manufacturing a flexible pressure sensor includes: preparing a solution by adding a polymer support material, a conductive particle, and a photoinitiator to a solvent; applying the solution on a flexible substrate; and irradiating ultraviolet rays onto the solution applied on the flexible substrate to cure the solution and form a solid film.
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公开(公告)号:US20240241533A1
公开(公告)日:2024-07-18
申请号:US18412938
申请日:2024-01-15
Inventor: Jong Pil IM , Seungeon MOON , Jeong Hun KIM
CPC classification number: G05F1/67 , G05F1/468 , H02J50/001 , H02M1/0032 , H02M3/158
Abstract: A power management device includes a converter, a sampling circuit, an MPPT management circuit, and an MPPT control circuit. The converter converts a voltage across an output node of an energy source, based on a first control signal to output a final output voltage; The sampling circuit includes a sampling node measures a sampling voltage related to an open circuit voltage of the energy source, based on a second control signal. The MPPT management circuit generates the first control signal, based on the second control signal, the sampling voltage, and the voltage across the output node of the energy source. The MPPT control circuit controls a voltage level of the sampling voltage to be changed within a first threshold voltage range by applying a current to the sampling node, based on the second control signal and the sampling voltage.
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公开(公告)号:US20220140649A1
公开(公告)日:2022-05-05
申请号:US17396271
申请日:2021-08-06
Inventor: Jong Pil IM , Jeong Hun KIM , Seungeon MOON
Abstract: Disclosed are a wireless device capable of being self-powered and an operating method thereof. The wireless device includes an energy harvesting module that generates electrical energy based on energy supplied from an outside, a power management module that generates a voltage based on the electrical energy provided from the energy harvesting module, a user input interface that includes at least one input device sensing an input of a user, and a communication module that transfers a command corresponding to the at least one input device to the outside based on the voltage provided from the power management module, in response to that the at least one input device is accessed by the user.
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公开(公告)号:US20210134813A1
公开(公告)日:2021-05-06
申请号:US17089286
申请日:2020-11-04
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor: Seungeon MOON , Bae Ho PARK , Sung-Min YOON , Seung Youl KANG , Jeong Hun KIM , Jiyong WOO , Jong Pil IM , Chansoo YOON , Ji Hoon JEON
IPC: H01L27/11507 , H01L27/11504 , H01L49/02
Abstract: The present disclosure relates to a memory device, and more particularly, to a memory device including a substrate, a plurality of vertical structures disposed on the substrate and including insulation layers and lower electrodes, which are alternately laminated with each other, wherein the vertical structures are aligned in a first direction parallel to a top surface of the substrate and a second direction crossing the first direction, an upper electrode disposed on a top surface and side surfaces of each of the vertical structures, and a first dielectric layer disposed between the upper electrode and the vertical structures to cover the top surface and the side surfaces of each of the vertical structures. Here, the first dielectric layer includes a ferroelectric material.
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公开(公告)号:US20220128498A1
公开(公告)日:2022-04-28
申请号:US17506658
申请日:2021-10-20
Inventor: Seungeon MOON , Jaewoo LEE , Jong Jin JUNG , Jeong Hun KIM , Do Joon YOO , Jong Pil IM
Abstract: Provided is a gas sensor including a substrate, a first membrane disposed on the substrate, a heating structure disposed on the first membrane, a second membrane disposed on the heating structure, a sensing electrode disposed on the second membrane, and a sensing material structure disposed on the sensing electrode. Here, the substrate provides an isolation space defined by a recessed surface obtained as a portion of a top surface of the substrate is spaced downward from a bottom surface of the first membrane, and the first membrane provides a first membrane etching hole that vertically extends to connect a top surface and the bottom surface of the first membrane and is connected with the isolation space. Also, the first membrane etching hole has a diameter of about 3 μm to about 20 μm.
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公开(公告)号:US20200175359A1
公开(公告)日:2020-06-04
申请号:US16669471
申请日:2019-10-30
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Konkuk University Industrial Cooperation Corp
Inventor: Jong Pil IM , Bae Ho PARK , Jeong Hun KIM , Seungeon MOON , Chansoo YOON , Jaewoo LEE , Solyee IM
Abstract: A neuron circuit and an operating method thereof are disclosed. The neuron circuit may include an input unit to which an input pulse is applied, a bipolar memristor configured to have one end connected to one end of the input unit, a first capacitor configured to be connected between the one end of the bipolar memristor and a ground, a first diode configured to have an anode connected to the one end of the bipolar component, a second capacitor configured to have one end connected to a cathode of the first diode, a first switch configured to be connected between the one end of the second capacitor and the ground, and a second switch configured to be connected between the anode of the first diode and the other end of the second capacitor.
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