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公开(公告)号：KR1019970001059B1
公开(公告)日：1997-01-25
申请号：KR1019960052596
申请日：1996-11-07
Applicant: 한국과학기술연구원
IPC: C04B35/465
Abstract: Dielectric ceramic composition for high-frequency wave is described which has high quality coefficient(Q value) and dielectric constant, and good temperature coefficient of resonance frequency. The dielectric ceramic composition may be represented as following formula: (1-y)CaTiO3-yLa(Zn1-x/2Mgx/2Ti1/2)O3, where, x is from 0 to1.0 and y is from 0.3 to 0.9. The dielectric composition according tothe invention has dielectric constant of 28.6 to 58.6, Qxfo(GHz) of 29,300 to 71,000, and the temperature coefficient of resonance frequency(TCF) ranging from -53.82 to +52.32 ppm/deg. C, which TCFbeing able to be controlled at a range of +-10ppm/deg. C dependingon amount of addition of impurities, so that the ceramic composition may effectively be used in telecommunication system.
Abstract translation: 描述了具有高质量系数（Q值）和介电常数以及良好的共振频率温度系数的用于高频波的介电陶瓷组合物。 介电陶瓷组合物可以用下式表示：（1-y）CaTiO3-yLa（Zn1-x / 2Mgx / 2Ti1 / 2）O3，其中x为0至1.0，y为0.3至0.9。 根据本发明的电介质组合物的介电常数为28.6〜58.6，Qxfo（GHz）为29,300〜71,000，共振频率（TCF）的温度系数为-53.82〜+52.32ppm / deg。 C，其TCFbeing能够控制在+ -10ppm / deg的范围内。 C含量添加杂质，使得陶瓷组合物可有效地用于电信系统中。
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公开(公告)号：KR1019950014290B1
公开(公告)日：1995-11-24
申请号：KR1019930003009
申请日：1993-03-02
Applicant: 한국과학기술연구원
IPC: H01L41/16
Abstract: The oxide piezoelectric ceramic material is based on yttrium and tungsten substituted lead oxide, lead zirconate and lead titanate, xPb(Y2/3W1/3)O3-yPbZrO3-zPbTiO3, where x=0.01-0.20, y=0.215-0.764, z=0.215-0.764, x+y+z=1, and 0.01-1.0 wt% one of lanthanum oxide, manganese oxide, niobium oxide, chromium oxide and tantalum oxide. The piezoelectric ceramics is prepared by mixing the starting materials, calcining the mixture at 800-900 deg.C and pulverizing, adding PVA aqueous solution as a binder and molding with 1 ton/cm2 pressure, sintering it at 1,150-1,225 deg.C in the closed container to prevent deterioration of piezoelectric property according to volatilization of lead oxide.
Abstract translation: 氧化物压电陶瓷材料基于钇和钨取代氧化铅，锆酸铅和钛酸铅，xPb（Y2 / 3W1 / 3）O3-yPbZrO3-zPbTiO3，其中x = 0.01-0.20，y = 0.215-0.764，z = 0.215-0.764，x + y + z = 1和0.01-1.0重量％的氧化镧，氧化锰，氧化铌，氧化铬和氧化钽之一。 压电陶瓷通过混合起始材料，在800-900℃下煅烧混合物并粉碎，加入PVA水溶液作为粘合剂并以1吨/ cm2的压力成型，在1,150-1,225℃下烧结， 密封容器，以防止氧化铅挥发中压电性能的劣化。
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Patent Agency Ranking
公开(公告)号：KR100929552B1
公开(公告)日：2009-12-03
申请号：KR1020070140976
申请日：2007-12-28
Applicant: 한국과학기술연구원
IPC: H01L41/18
Abstract: 에너지 변환 효율이 높으며 압전 에너지 하베스터 시스템의 소형화를 도모할 수 있는 하베스터 시스템의 캔틸레버를 제공한다. 이 캔틸레버는 휘어짐 가능한 기판; 및 상기 기판 상에 위치하며, [110] 방향으로 배열 및 분극된 압전 단결정층을 포함하되, 상기 압전 단결정층의 분극 방향은 상기 캔틸레버에 수직하다. 완화형 강유전체 단결정의 [110] 방향을 이용하여 에너지 하베스터의 캔틸레버를 제조함으로써, 단위 면적당 에너지 발전 효율을 높일 수 있으며, 압전 발전기의 소형화에 기여할 수 있다.
압전 단결정, PMN-PT, [100]방향, 에너지 하베스팅Abstract translation: 通过利用菱形结构的松弛铁电单晶制造能量收集器的悬臂，提供能量收集器以提高单位面积的能量产生效率。 能量收集器的悬臂包括柔性衬底（302）和压电单晶层（301）。 压电单晶层位于柔性基板上。 压电单晶层的偏振方向是围绕悬臂的垂直方向。 悬臂的纵向具有压电常数d31。 压电单晶层是Pb（Zn2 / 3Nb1 / 3）O3-PbTiO3（PZN-PT）或Pb（Mg2 / 3Nb1 / 3）O3-PbTiO3（PMN-PT）。 压电单晶层具有菱形结构。
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公开(公告)号：KR1020090105683A
公开(公告)日：2009-10-07
申请号：KR1020080031294
申请日：2008-04-03
Applicant: 한국과학기술연구원
CPC classification number: H02N2/12 , H01L41/187 , H02N2/0065
Abstract: PURPOSE: An omni-directional linear piezoelectric ultrasound motor is provided to simplify a structure by controlling a driver force, a drive speed, and a drive direction of a movable plate by one piezoelectric ultrasonic motor. CONSTITUTION: A piezoelectric ceramic vibrator(120) is combined in a base(110). The piezoelectric ceramic vibrator is comprised of a plurality of piezoelectric ceramics into which an AC field is applied and generates the vibration. A transmission unit(140) is attached to the plurality of piezoelectric ceramics and transmits the mechanical vibration. A tip(150) is combined in the end of the transmission unit. A movable plate(170) is driven by the friction with the tip.
Abstract translation: 目的：提供一种全向线性压电超声波电机，通过一个压电超声波电机控制可动板的驱动力，驱动速度和驱动方向来简化结构。 构成：压电陶瓷振动器（120）组合在基座（110）中。 压电陶瓷振动器由多个压电陶瓷构成，其中施加有AC场并产生振动。 传递单元（140）附接到多个压电陶瓷并传递机械振动。 在传输单元的末端组合尖端（150）。 可移动板（170）由与尖端的摩擦力驱动。
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公开(公告)号：KR1020090054728A
公开(公告)日：2009-06-01
申请号：KR1020070121559
申请日：2007-11-27
Applicant: 한국과학기술연구원
IPC: H02N2/00
CPC classification number: H02N2/163
Abstract: A ring type piezoelectric ultrasonic resonator and a piezoelectric ultrasonic rotary motor using thereof are provided to generate the same rotatory power at all circumference by arranging a piezoelectric ceramic as a ring shape. An annular piezoelectric ultrasonic wave resonator(101) comprises an piezoelectric ceramic, which is segmented by 1/4 length of the wave length of AC electric field. A polarization unit is composed of two compartments(110) while being polarized to an opposite polarity. The sinusoidal wave AC electric field having a phase difference of figure 90 is applied to the compartments alternately. The first electrode(120) is arranged on the outer side of the compartment, and the second electrode(130) is arranged on the inner side of the compartment.
Abstract translation: 提供一种环型压电超声波谐振器和使用其的压电超声波旋转电机，通过将压电陶瓷作为环形布置，在全周期产生相同的旋转动力。 环形压电超声波谐振器（101）包括压电陶瓷，其被分割成交流电场的波长的1/4长度。 偏振单元由两个隔间（110）组成，同时极化为相反的极性。 将具有图90的相位差的正弦波交流电场交替地施加到隔间。 第一电极（120）设置在隔室的外侧，第二电极（130）设置在隔室的内侧。
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公开(公告)号：KR100817470B1
公开(公告)日：2008-03-31
申请号：KR1020060103210
申请日：2006-10-24
Applicant: 한국과학기술연구원
CPC classification number: H02N2/026 , H02N2/0015
Abstract: A piezo-electric linear motor is provided to precisely move a mover in a desired distance by desired friction force by changing a long radius and a short radius of oval displacement through a frequency control. A piezo-electric linear motor includes a power unit(130), a piezo-electric substrate(100), a metallic elastic body(110), and a move(120). The power unit includes a first power source(131) and a second power source(132). The piezo-electric substrate includes a first piezo-electric device(101) and a second piezo-electric device(102) which receive voltages from the power unit. The metallic elastic body includes first and second elastic bodies(111,112), and a center projection portion(113). The mover is in contact with the center projection portion of the metallic elastic body. A piezo-electric actuator is formed by connecting the piezo-electric substrate to the metallic elastic body. A buffering support is provided at a side opposed to the mover. The buffering support guides and supports the movement of the mover, and buffers a shock generated at the time when the center projection portion is in contact with the mover.
Abstract translation: 提供压电线性电动机，通过改变通过频率控制的长半径和椭圆形位移的短半径，通过期望的摩擦力将移动器精确地移动到期望的距离。 压电线性电动机包括动力单元（130），压电基板（100），金属弹性体（110）和移动（120）。 功率单元包括第一电源（131）和第二电源（132）。 压电基板包括从动力单元接收电压的第一压电装置（101）和第二压电装置（102）。 金属弹性体包括第一和第二弹性体（111,112）和中心突出部分（113）。 动子与金属弹性体的中心突起部接触。 压电致动器通过将压电基板连接到金属弹性体而形成。 在与移动者相对的一侧提供缓冲支撑。 缓冲支撑件引导和支撑移动器的运动，并且缓冲在中心突出部分与动子接触时产生的冲击。
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公开(公告)号：KR100612915B1
公开(公告)日：2006-08-16
申请号：KR1020050028226
申请日：2005-04-04
Applicant: 한국과학기술연구원
IPC: H01L21/31 , H01L27/105
Abstract: 본 발명은 전자빔으로 조절된 강유전체 박막의 분역이 분극방향에 따라 식각속도가 다르다는 점을 이용하여 강유전체 나노점을 제작하는 방법에 관한 것이다. 본 발명에 의하면, 직접 전자빔 조사(direct e-beam writing) 방식을 채용하여 강유전체 나노점 형성과정에서 필수적이라고 여겨지던 ER을 사용할 필요가 없으므로, 강유전체 기억매체의 제작과정이 간단해진다. 또한, ER의 존재 때문에 나빠졌던 전자빔의 분해능이 향상되어 10 nm 이하의 분해능을 가진 식각이 가능해진다.
강유전체, 나노점, 식각, 분극, 기억매체.Abstract translation: 本发明是一种强电介质薄膜具有受控于通过使用蚀刻速率取决于偏振方向的事实制造强电介质纳米点的方法的电子束的磁畴壁。 根据本发明，通过消除被认为是必要的，该铁电纳米形成工艺南部ER的需要，简化了铁电记录介质的制造过程中使用的电子束照射（电子束直写）方法直接成为。 此外，电子束的由于ER的存在和增强的分辨率下降，可以具有小于10纳米的分辨率来蚀刻。
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