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公开(公告)号：US20230254612A1
公开(公告)日：2023-08-10
申请号：US18303228
申请日：2023-04-19
发明人： Hyeokki HONG , Hyunwook KANG , Sungchan KANG , Cheheung KIM
摘要： A multi-function acoustic sensor may include a plate structure having a plurality of open spaces that are spaced apart from each other; a plurality of sensors provided on the plate structure, the plurality of sensors including a plurality of sensor elements respectively provided to overlap the plurality of open spaces; and a case having an inner space in which the plurality of sensors are provided, the case including: a first case surface on which the plurality of sensors are provided, the first case surface having at least one first hole, and a second case surface opposite to the first case surface, the second case surface having at least one second hole, wherein the at least one first hole and the at least one second hole form at least one path along which sound is transmitted and sensed through at least one of the plurality of open spaces of the plate structure.
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公开(公告)号：US20200044624A1
公开(公告)日：2020-02-06
申请号：US16597069
申请日：2019-10-09
发明人： Sungchan KANG , Cheheung KIM , Sangha PARK , Yongseop YOON , Choongho RHEE
摘要： A filter system includes a first resonator having a first resonant frequency, and a second resonator having a second resonant frequency different from the first resonant frequency, and electrically connected to the first resonator. A first response characteristic of the first resonator and a second response characteristic of the second resonator with respect to a frequency include a first section in which a first phase of the first resonator is equal to a second phase of the second resonator, and a second section in which the first phase is different from the second phase by 180 degrees. A first electrode of the first resonator is reversely connected to a second electrode of the second resonator.
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公开(公告)号：US20190028084A1
公开(公告)日：2019-01-24
申请号：US15870546
申请日：2018-01-12
发明人： Yongseop YOON , Sungchan KANG , Cheheung KIM , Sangha PARK , Choongho RHEE , Hyeokki HONG
摘要： Provided are micromechanical resonators and resonator systems including the micromechanical resonators. The micromechanical resonators may each include a supporting beam including a fixed end fixed on a supporting member and a loose end configured to vibrate, and a lumped mass arranged on the loose end, wherein the loose end has a width greater than a width of the fixed end, and a width of the lumped mass is greater than that the width of the fixed end.
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公开(公告)号：US20180130485A1
公开(公告)日：2018-05-10
申请号：US15806863
申请日：2017-11-08
发明人： Sangha PARK , Sungchan KANG , Cheheung KIM , Yongseop YOON , Choongho RHEE
摘要： An auto voice trigger method and an audio analyzer employing the same are provided. The auto voice trigger method includes: receiving a signal by at least one resonator microphone included in an array of a plurality of resonator microphones with different frequency bandwidths; analyzing the received signal and determining whether the received signal is a voice signal; and when it is determined that the received signal is the voice signal, waking up a whole system to receive and analyze a wideband signal.
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公开(公告)号：US20240213306A1
公开(公告)日：2024-06-27
申请号：US18363045
申请日：2023-08-01
发明人： Sunghyun KIM , Sungchan KANG , Haeryong KIM , Jeonggyu SONG , Cheheung KIM , Jooho LEE
CPC分类号： H01L28/75 , H01G4/008 , H01G4/1209 , H01G4/1218 , H01G4/1236 , H01G4/33 , H01L27/0629 , H01L28/65
摘要： Provided are a capacitor and a semiconductor device including the same. The capacitor includes a first electrode, a dielectric layer over the first electrode, a second electrode between the first electrode and the dielectric layer, and a third electrode over the dielectric layer and in contact with the dielectric layer such that the dielectric layer is between the second electrode and the third electrode. A thermal expansion coefficient of the first electrode may be greater than a thermal expansion coefficient of the dielectric layer, and a work function of the second electrode may be higher than a work function of the first electrode.
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公开(公告)号：US20230152411A1
公开(公告)日：2023-05-18
申请号：US17731742
申请日：2022-04-28
发明人： Sungchan KANG , Cheheung KIM , Choongho RHEE
摘要： A directional acoustic sensor includes: a support including a first support portion and a second support portion that are separated from each other and face each other; a plurality of first resonators extending in a length direction thereof from the first support portion of the support; and a plurality of second resonators extending in the length direction thereof from the second support portion of the support and facing the plurality of first resonators, wherein each first resonator of the plurality of first resonators has a first end, wherein each second resonator of the plurality of second resonators has a second end, and wherein, in a first resonator arrangement of a region where the plurality of first resonators and the plurality of second resonators face each other, the first ends of the plurality of first resonators and the second ends of the plurality of second resonators form an intersecting structure.
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公开(公告)号：US20220173210A1
公开(公告)日：2022-06-02
申请号：US17671040
申请日：2022-02-14
发明人： Hyeokki HONG , Cheheung KIM , Sungchan KANG , Yongseop YOON , Choongho RHEE
IPC分类号： H01L49/02
摘要： A capacitor structure includes at least one first layer and at least one second layer that are alternately stacked. The at least one first layer includes first electrodes and second electrodes alternately arranged in a first direction, and the at least one second layer includes third electrodes and fourth electrodes alternately arranged in a second direction intersecting the first direction, the third electrodes and the fourth electrodes being electrically connected to the first electrodes and the second electrodes. Each of the first electrodes and the second electrodes includes a base portion and branch portions protruding from the base portion, and the third electrodes and the fourth electrodes are arranged side by side to correspond to the branch portions.
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公开(公告)号：US20220158074A1
公开(公告)日：2022-05-19
申请号：US17224254
申请日：2021-04-07
发明人： Choongho RHEE , Sungchan KANG , Yongseop YOON
IPC分类号： H01L41/113 , H01L41/332 , G01L1/16
摘要： An etching method for forming a vertical structure is provided. The etching method may include: positioning a mask on a substrate, wherein the mask includes an opening pattern and a compensation pattern, and the compensation pattern is disposed at a corner of two adjacent sides of the opening pattern and includes a concave compensation pattern that is indented from one of the two adjacent sides; and forming the vertical structure on the substrate through the opening pattern of the mask by a dry etching process.
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公开(公告)号：US20210126615A1
公开(公告)日：2021-04-29
申请号：US16880231
申请日：2020-05-21
发明人： Yongseop YOON , Sungchan KANG , Cheheung KIM , Choongho RHEE
摘要： A micromechanical resonator includes a support beam having a fixed end, and a free end configured to vibrate. The micromechanical resonator includes a lumped mass disposed on the free end. A height of the lumped mass is greater than a width of the lumped mass.
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10.发明申请公开(公告)号：US20200370951A1
公开(公告)日：2020-11-26
申请号：US16574916
申请日：2019-09-18
发明人： Sungchan KANG , Hyunwook KANG , Yongseop YOON , Jaehyung JANG
摘要： Provided are a directional acoustic sensor and a method of detecting a distance from a sound source using the same. The directional acoustic sensor may include a plurality of resonators arranged in different directions; and a processor configured to calculate a time difference between a first signal that is received by the plurality of resonators directly from a sound source and a second signal that is received by the plurality of resonators from the sound source after being reflected on a wall surface around the sound source, and determine a distance between the sound source and the directional acoustic sensor based on the time difference.
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