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公开(公告)号:US11774280B2
公开(公告)日:2023-10-03
申请号:US17697837
申请日:2022-03-17
申请人: Exo Imaging, Inc.
发明人: Sandeep Akkaraju , Haesung Kwon , Brian Bircumshaw
IPC分类号: G01S15/00 , G01N29/00 , G01H11/08 , G01S15/02 , G01N29/07 , H01G5/00 , H10N30/30 , H10N30/85 , B81B3/00
CPC分类号: G01H11/08 , G01N29/07 , G01S15/02 , H01G5/00 , H10N30/302 , H10N30/852 , B81B3/0021
摘要: A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane suspending from the substrate; a bottom electrode disposed on the membrane; a piezoelectric layer disposed on the bottom electrode and an asymmetric top electrode is disposed on the piezoelectric layer. The areal density distribution of the asymmetric electrode along an axis has a plurality of local maxima, wherein locations of the plurality of local maxima coincide with locations where a plurality of anti-nodal points at a vibrational resonance frequency is located.
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公开(公告)号:US20220205836A1
公开(公告)日:2022-06-30
申请号:US17697837
申请日:2022-03-17
申请人: Exo Imaging, Inc.
发明人: Sandeep AKKARAJU , Haesung KWON , Brian BIRCUMSHAW
摘要: A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane suspending from the substrate; a bottom electrode disposed on the membrane; a piezoelectric layer disposed on the bottom electrode and an asymmetric top electrode is disposed on the piezoelectric layer. The areal density distribution of the asymmetric electrode along an axis has a plurality of local maxima, wherein locations of the plurality of local maxima coincide with locations where a plurality of anti-nodal points at a vibrational resonance frequency is located.
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公开(公告)号:US20210172788A1
公开(公告)日:2021-06-10
申请号:US17180308
申请日:2021-02-19
申请人: eXo Imaging, Inc.
发明人: Sandeep AKKARAJU , Haesung KWON , Brian BIRCUMSHAW
摘要: A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane suspending from the substrate; a bottom electrode disposed on the membrane; a piezoelectric layer disposed on the bottom electrode and an asymmetric top electrode is disposed on the piezoelectric layer. The areal density distribution of the asymmetric electrode along an axis has a plurality of local maxima, wherein locations of the plurality of local maxima coincide with locations where a plurality of anti-nodal points at a vibrational resonance frequency is located.
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公开(公告)号:US10969270B2
公开(公告)日:2021-04-06
申请号:US16833333
申请日:2020-03-27
申请人: eXo Imaging, Inc.
发明人: Sandeep Akkaraju , Haesung Kwon , Brian Bircumshaw
IPC分类号: H01L41/00 , G01N29/00 , G01H11/08 , G01S15/02 , G01N29/07 , H01G5/00 , H01L41/113 , H01L41/18 , B81B3/00
摘要: A micromachined ultrasonic transducer (MUT). The MUT includes: a substrate; a membrane suspending from the substrate; a bottom electrode disposed on the membrane; a piezoelectric layer disposed on the bottom electrode and an asymmetric top electrode is disposed on the piezoelectric layer. The areal density distribution of the asymmetric electrode along an axis has a plurality of local maxima, wherein locations of the plurality of local maxima coincide with locations where a plurality of anti-nodal points at a vibrational resonance frequency is located.
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公开(公告)号:US10804038B2
公开(公告)日:2020-10-13
申请号:US13581285
申请日:2011-02-18
申请人: Benjamin Marc O'Brien , Iain Alexander Anderson , Thomas Gregory McKay , Emilio Patricio Calius
发明人: Benjamin Marc O'Brien , Iain Alexander Anderson , Thomas Gregory McKay , Emilio Patricio Calius
摘要: The invention provides an electric circuit device including a conductive element configured to provide an electrical input to an electrical component, the resistivity of the conductive element being variable based at least on the extent of deformation thereof, and a deformable body coupled directly or indirectly to, or integral with, the conductive element such that deformation of the body causes the conductive element to deform, thereby varying the resistance thereof and altering the input to the electrical component. Said devices may be used singularly or in combination as logic elements within electrical circuits, providing drive and/or control functionality. Particular embodiments provide improved electrostatic generators.
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公开(公告)号:US09824700B1
公开(公告)日:2017-11-21
申请号:US15161999
申请日:2016-05-23
申请人: TDK CORPORATION
IPC分类号: H01L21/302 , H01L21/461 , H01G4/00 , H01G5/00 , H01G7/00 , H01G9/00 , H01G13/00 , H01B13/00 , B44C1/22 , C03C15/00 , C03C25/68 , C23F1/00 , G11B5/127 , G11B5/11 , G11B5/39 , H01L21/027 , H01L45/00
CPC分类号: G11B5/1272 , G11B5/112 , G11B5/1278 , G11B5/3912 , H01L21/027 , H01L45/1675 , H01L45/1683 , H01L45/1691
摘要: A manufacturing method for a magnetic head forms a leading shield having a top surface. The top surface of the leading shield includes first and second portions. The second portion is located farther from a medium facing surface than is the first portion, and recessed from the first portion. A first gap layer is then formed on the first portion. Then, a magnetic layer including an initial first side shield, an initial second side shield and a coupling section connecting them is formed using a mold. The mold is then removed. The coupling section is then removed by etching the magnetic layer. A second gap layer and a main pole are then formed in this order.
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公开(公告)号:US09721729B2
公开(公告)日:2017-08-01
申请号:US14891584
申请日:2014-05-28
申请人: COMET AG
发明人: Mark Joachim Mildner , Roland Bieri , Mike Abrecht , Walter Bigler , Douglas Beuerman , Jack Gilmore
摘要: A vacuum variable capacitor includes a pre-vacuum enclosure for reducing a pressure differential across the bellows, wherein a drive is disposed outside the enclosures of the vacuum variable capacitor. The vacuum force load on the drive system can thereby be reduced, allowing faster movement of the movable electrode, faster capacitance adjustment of the vacuum variable capacitor and longer lifetimes of the device.
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公开(公告)号:US09661742B2
公开(公告)日:2017-05-23
申请号:US15016400
申请日:2016-02-05
发明人: Po-Hsiang Fan
CPC分类号: H05K1/0265 , H05K3/245 , H05K2201/10272
摘要: A printed circuit board is disclosed, comprising a plate body, a conductive pattern disposed on the plate body, a conductive metal plate, and a metal layer. The conductive metal plate has a first terminal and a second terminal, wherein the first terminal and the second terminal are fixed to the plate body. An accommodating space is between the conductive metal plate and the plate body. The metal layer covers the conductive metal plate and the conductive pattern, and is filled into the accommodating space. Therefore, a printed circuit board which has metal blocks with enough thickness is provided. The metal blocks can provide sufficiently low resistance to increase resistance efficiency of the printed circuit.
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公开(公告)号:US09627139B2
公开(公告)日:2017-04-18
申请号:US13827925
申请日:2013-03-14
发明人: Byoung Hwa Lee , Young Ghyu Ahn , Sang Soo Park , Min Cheol Park , Tae Hyeok Kim , Heung Kil Park
摘要: There is provided a multilayered ceramic capacitor including: a ceramic body in which a plurality of dielectric layers are stacked; an active layer including a plurality of first and second internal electrodes formed to be alternately exposed to both end surfaces of the ceramic body, having the dielectric layer interposed therebetween, to form capacitance; an upper cover layer formed above the active layer, a lower cover layer formed below the active layer and being thicker than the upper cover layer; and first and second external electrodes formed to cover both end surfaces of the ceramic body, wherein a ratio of an area Y of a region overlapped between the first and second internal electrodes to a total area X of the active layer and the upper cover layer on a cross section of the ceramic body in length-thickness (L-T) directions is in a range of 0.5 to 0.9.
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公开(公告)号:US09595401B1
公开(公告)日:2017-03-14
申请号:US15066780
申请日:2016-03-10
发明人: Jooho Lee , Yongsung Kim , Changseung Lee
IPC分类号: H01G4/00 , H01G5/00 , H01G7/00 , H01G9/00 , H01G13/00 , H01G11/86 , H01G11/36 , C23C16/26 , C23C16/40 , C23C16/455 , C23C16/50
摘要: Example embodiments relate to a method of fabricating a graphene nano-mesh by selectively growing an oxide layer on a defect site of a graphene layer and etching the oxide layer to form the graphene nano-mesh. The method includes forming a graphene layer on a catalyst layer, forming an oxide layer on a defect site of the graphene layer, forming the graphene nano-mesh including a plurality of openings by etching the oxide layer, and transferring, after removing the catalyst layer, the graphene nano-mesh onto a substrate.
摘要翻译: 示例性实施例涉及通过选择性地生长石墨烯层的缺陷部位上的氧化物层并蚀刻氧化物层以形成石墨烯纳米网来制造石墨烯纳米网的方法。 该方法包括在催化剂层上形成石墨烯层,在石墨烯层的缺陷部位形成氧化层,通过蚀刻氧化层形成包括多个开口的石墨烯纳米网,并且在除去催化剂层之后转移 ,石墨烯纳米网到基底上。
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