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公开(公告)号：US20060043329A1
公开(公告)日：2006-03-02
申请号：US11210468
申请日：2005-08-24
IPC分类号： C04B35/49
CPC分类号： C04B35/493 , C04B35/62665 , C04B2235/3206 , C04B2235/3217 , C04B2235/3241 , C04B2235/3251 , C04B2235/3418 , H01L41/187
摘要： A piezoelectric ceramic composition which has a large electromechanical coupling factor and is excellent in heat resisting properties is provided. As additives, Cr, Al and Si are contained together in the piezoelectric ceramic composition including a perovskite compound which contains Pb, Zr and Ti as main components. Preferably, Cr, Al and Si are respectively contained in a content of 0.05 to 0.50 wt % in terms of Cr2O3, in a content of 0.005 to 1.500 wt % in terms of Al2O3, and in a content of 0.005 to 0.100 wt % in terms of SiO2. By simultaneously including these three elements and setting the contents thereof to fall within the above mentioned ranges, the electromechanical coupling factor kt can be 30% or more, and ΔFr, which is the rate of change in resonant frequency Fr between before and after application of an external thermal shock, can be 0.5% or less in absolute value.
摘要翻译： 提供了具有大的机电耦合系数并且耐热性优异的压电陶瓷组合物。 作为添加剂，包含Pb，Zr和Ti作为主要成分的钙钛矿型化合物的压电陶瓷组合物中含有Cr，Al，Si。 优选地，Cr，Al和Si分别以Cr 2 Al 3 O 3含量为0.05〜0.50重量％，含量为0.005〜1.500重量％ 以Al 2 O 3 3计，含量为0.005〜0.100重量％，以SiO 2 2计。 通过同时包含这三个要素并将其内容设定在上述范围内，机电耦合系数kt可以为30％以上，作为施加前后的谐振频率Fr的变化率的DeltaFr 外部热冲击的绝对值可以为0.5％以下。
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公开(公告)号：US08142677B2
公开(公告)日：2012-03-27
申请号：US10597366
申请日：2005-02-28
IPC分类号： C04B35/00 , C04B35/495 , H01L41/18 , H01L41/187
CPC分类号： C04B35/491 , C04B2235/3217 , C04B2235/3251 , C04B2235/3262 , C04B2235/80 , H01L41/1876
摘要： A piezoelectric ceramic composition excellent in all of the electric property Qmax, heat resisting properties and temperature characteristics of oscillation frequencies is provided. The piezoelectric ceramic composition comprises a phase mainly comprising lead zirconate titanate having a perovskite structure and an Al-containing phase. In the piezoelectric ceramic composition, the main component preferably comprises Mn and Nb, and is preferably represented by a composition formula of Pbα[(Mn1/3Nb2/3)xTiyZrz]O3 (wherein 0.97≦α≦1.01, 0.04≦x≦0.16, 0.48≦y≦0.58, 0.32≦z≦0.41).
摘要翻译： 提供了所有电特性Qmax，耐热性能和振荡频率的温度特性均优异的压电陶瓷组合物。 压电陶瓷组合物包括主要包含具有钙钛矿结构的锆钛酸铅和含Al相的相。 在压电陶瓷组合物中，主成分优选含有Mn和Nb，优选以组成式Pbα[（Mn1 / 3Nb2 / 3）×TiZZZz] O3（其中0.97和nlE;α＆nlE; 1.01,0.04和nlE; x＆ 0.16，0.48＆nlE; y＆nlE; 0.58,0.32＆amp; nl; z＆nlE; 0.41）。
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公开(公告)号：US07390426B2
公开(公告)日：2008-06-24
申请号：US10541022
申请日：2004-03-19
申请人： Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose
发明人： Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose
IPC分类号： C04B35/46 , H01L41/187
CPC分类号： C04B35/63 , C04B35/475 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3262 , C04B2235/3275 , H01L41/187
摘要： The present invention has an object to provide piezoelectric ceramics containing no lead, having a high Curie point, and further, having excellent piezoelectric properties, particularly large Qmax. The piezoelectric ceramics contain, as a main component, a bismuth layer-structured compound having (MII1-xLnx)Bi4Ti4O15 crystals (MII is an element selected from Sr, Ba, and Ca, Ln is an element selected from lanthanoids, and x is within a range of 0
摘要翻译： 本发明的目的是提供一种不具有高居里点的不含铅的压电陶瓷，并且还具有优异的压电性能，特别大的Qmax。 作为主要成分的压电陶瓷含有具有（M 1，X 2）1-x L n x L z）Bi Bi的铋层结构化合物 > 4 5 15 15 15 是从Sr，Ba和Ca中选出的一种元素，Ln是 元素，其选自镧系元素，x在0
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公开(公告)号：US20070257228A1
公开(公告)日：2007-11-08
申请号：US10581277
申请日：2004-12-03
申请人： Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose , Hitoshi Oka
发明人： Takeo Tsukada , Tomohisa Azuma , Masakazu Hirose , Hitoshi Oka
IPC分类号： H01L41/083
CPC分类号： C04B35/475 , C04B2235/3208 , C04B2235/3213 , C04B2235/3224 , C04B2235/3227 , H01L41/187
摘要： A piezoelectric ceramics having ceramic particles, wherein said ceramic particles comprises bismuth layer compound containing at least Sr, Ln (note that Ln is a lanthanoid element), Bi, Ti and O and including MIIBi4Ti4O15 type crystal (MII is an element composed of Sr and Ln) as a main component, and an oxide of Mn as a subcomponent; and an average particle diameter by the code length measuring method is 0.8 to 4.7 μm: by which it is possible to provide piezoelectric ceramics having a large Qmax in a third harmonic mode of thickness vertical vibration in a relatively high frequency band (for example, 16 to 65 MHz), a resonator an other piezoelectric element comprising the piezoelectric ceramics as a piezoelectric substance thereof.
摘要翻译： 一种具有陶瓷颗粒的压电陶瓷，其中所述陶瓷颗粒包括至少含有Sr，Ln的铋层化合物（注意Ln是镧系元素），Bi，Ti和O，并且包括M II > 4 15 15 类型晶体（M II）是由Sr和Ln组成的元素作为主要成分， 和Mn的氧化物作为副成分; 并且通过代码长度测量方法的平均粒径为0.8至4.7μm：通过该压电陶瓷可以在相对的厚度垂直振动的三次谐波模式中提供具有大Q最大值的压电陶瓷 高频带（例如，16至65MHz），谐振器和包括作为其压电体的压电陶瓷的其它压电元件。
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公开(公告)号：US20090065731A1
公开(公告)日：2009-03-12
申请号：US12230677
申请日：2008-09-03
IPC分类号： C04B35/46
CPC分类号： C04B35/493 , C04B35/6262 , C04B2235/3217 , C04B2235/3251 , C04B2235/3262 , C04B2235/5445 , C04B2235/658 , C04B2235/662 , C04B2235/96 , H01L41/1876 , H01L41/257
摘要： To provide a method for producing a piezoelectric ceramic which can improve toughness thereof. Provided is a method for producing a piezoelectric ceramic which includes a step of polarizing a piezoelectric ceramic having a main component represented by a composition formula Pba[(MnbNbc)dTieZrf]O3, wherein a to f satisfy 0.98≦a≦1.01, 0.340≦b≦0.384, 0.616≦c≦0.660, 0.08≦d≦0.12, 0.500≦e≦0.540, 0.37≦f≦0.41, and bd+cd+e+f=1, and 1 to 10% by weight of Al in terms of Al2O3 as an additive, and heat-treating the polarized piezoelectric ceramic for 10 to 60 minutes in a range of 200 to 300° C. As a result of this heat treatment, toughness of the piezoelectric ceramic can be improved.
摘要翻译： 提供一种能够提高其韧性的压电陶瓷的制造方法。 提供一种制造压电陶瓷的方法，其包括使由组成式Pba [（MnbNbc）dTieZrf] O 3表示的主要成分的压电陶瓷极化的步骤，其中a至f满足0.98 <= a <= 1.01,0.340 <= b <= 0.384,0.616 <= c <= 0.660,0.08 <= d <= 0.12,0.500 <= e <= 0.540,0.37 <= f <= 0.41和bd + cd + e + f = 以Al 2 O 3作为添加剂的Al为1〜10重量％，在200〜300℃的范围内对极化压电陶瓷进行10〜60分钟的热处理。作为该热处理的结果， 可以改善压电陶瓷。
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公开(公告)号：US20060028237A1
公开(公告)日：2006-02-09
申请号：US11223937
申请日：2005-09-13
申请人： Hideto Hidaka , Masakazu Hirose
发明人： Hideto Hidaka , Masakazu Hirose
IPC分类号： H03K19/003
CPC分类号： H03K19/00361
摘要： A data output drive transistor is rendered conductive when the potential of an internal node attains an H level, whereby an output node is discharged to the level of ground potential. When the drive transistor is turned on, the output node is discharged to the level of ground potential at high speed. This drive transistor is turned on for a predetermined time period when output of a high level data is completed, whereby the output node is discharged to the level of the ground potential for a predetermined time period. As a result, the potential of the output node is lowered from a high level to an intermediate level, so that the amplitude of a subsequent output signal is reduced. An output circuit that can effectively prevent generation of ringing with no increase in the access time is provided. A countermeasure is provided to suppress a ringing at output node which drives the output node at high speed when the output node potential attains a potential at which no ringing is caused. A stable output signal is provided at high speed.
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公开(公告)号：US06551522B2
公开(公告)日：2003-04-22
申请号：US09778080
申请日：2001-02-07
申请人： Masakazu Hirose , Takeo Tsukada , Hitoshi Oka , Junji Terauchi
发明人： Masakazu Hirose , Takeo Tsukada , Hitoshi Oka , Junji Terauchi
IPC分类号： C04B35453
CPC分类号： C04B35/475 , C04B2235/3205 , C04B2235/3213 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3262 , C04B2235/3275 , C04B2235/604 , C04B2235/72 , C04B2235/78 , C04B2235/786 , C04B2235/81 , C04B2235/96 , H01L41/187
摘要： Piezoelectric ceramics include a bismuth layer compound containing MII, Bi, Ti, Ln and O, wherein MII represents at least one element selected from the group consisting of Sr, Ba and Ca, and Ln represents at least one element selected from the group consisting of lanthanoids. The piezoelectric ceramics include MIIBi4Ti4O15 typed crystals, and a mole ratio of Ln/(Ln+MII) is 0
摘要翻译： 压电陶瓷包括含有MII，Bi，Ti，Ln和O的铋层化合物，其中MII表示选自Sr，Ba和Ca中的至少一种元素，Ln表示选自以下的至少一种元素： 镧系元素。 压电陶瓷包括MIIBi4Ti4O15型晶体，Ln /（Ln + MII）的摩尔比为0
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公开(公告)号：US06461532B1
公开(公告)日：2002-10-08
申请号：US09696960
申请日：2000-10-27
申请人： Hitoshi Oka , Masakazu Hirose , Yasuo Watanabe , Junji Terauchi
发明人： Hitoshi Oka , Masakazu Hirose , Yasuo Watanabe , Junji Terauchi
IPC分类号： C04B35462
CPC分类号： H01L41/187 , C04B35/475
摘要： A piezoelectric ceramic material comprising a bismuth layer compound containing MII, Bi, Ti and O wherein MII is selected from Sr, Ba and Ca, and containing MIIBi4Ti4O15 type crystals, wherein MII, is represented by SrxBayCaz wherein x+y+z=1, utilizes thickness shear vibration when 0≦x≦ 1, 0≦y≦0.9, and 0≦z≦1, and thickness extensional vibration when 0≦x
摘要翻译： 一种包含含有MII，Bi，Ti和O的铋层化合物的压电陶瓷材料，其中MII选自Sr，Ba和Ca，并含有MIIBi4Ti4O15型晶体，其中MII由SrxBayCaz表示，其中x + y + z = 1， 当0 <= x <= 1，0 <= y <= 0.9，0 <= z <= 1时使用厚度剪切振动，当0 <= x <0.9,0 <= y <= 0.9时， 0 <= z <1。 还提供了包含含有Ca，Bi，Ti，Ln和0的铋层化合物的压电陶瓷材料，其中Ln是镧系元素，并且含有CaBi 4 Ti 4 O 15型晶体，其中原子比Ln /（Ln + Ca）在以下范围内： 0
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公开(公告)号：US06404102B1
公开(公告)日：2002-06-11
申请号：US09631699
申请日：2000-08-03
IPC分类号： H01L4108
CPC分类号： H03H9/177 , H03H9/0207 , H03H9/02157 , H03H9/0504 , H03H9/1014
摘要： A piezoelectric substrate is constituted by a piezoelectric material of an effective Poisson's ratio being less than 1/3. The substrate has a pair of opposite faces and the opposite faces are provide with a pair of vibrating electrodes in correspondence. The opposite faces of the piezoelectric substrate are rectangular respectively. The sum of the lengths Lc of the one faces in the opposite faces 1a, 1b and the length Wc of the other side of the same is limited within range 2.22 mm≦≦2.24 mm or 2.34 mm≦≦2.48 mm, said one faces being vertical each other. The areas Sc of the opposite faces are 1.22 mm2≦Sc≦1.26 mm2 or 1.35 mm2≦Sc≦1.538 mm2. Accordingly, though using the piezoelectric material of the effective Poisson's ratio being less than 1/3, vibration in the thickness extensional fundamental waves can be steadily utilized.
摘要翻译： 压电基板由有效泊松比的压电材料构成，小于1/3。 基板具有一对相对的面，相对的面相应地设有一对振动电极。 压电基板的相对面分别为矩形。 相对面1a，1b中的一个面的长度Lc和其另一面的长度Wc的总和被限制在2.22mm <= 2.24mm或2.34mm <= <= 2.48mm的范围内， 说一个人面对垂直。 相对面的面积Sc为1.22 mm2 <= Sc <= 1.26 mm2或1.35 mm2 <= Sc <= 1.538 mm2。 因此，尽管使用有效泊松比的压电材料小于1/3，但可以稳定地利用厚度延伸基波的振动。
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公开(公告)号：US5574397A
公开(公告)日：1996-11-12
申请号：US352021
申请日：1994-11-30
IPC分类号： H01L21/822 , G11C5/14 , G11C7/10 , G11C11/401 , G11C11/409 , H01L21/82 , H01L27/04 , H03K17/16 , H03K19/0175 , H01J19/82
CPC分类号： G11C7/1057 , G11C5/14 , G11C7/1051 , H03K17/164
摘要： A semiconductor integrated circuit device includes a pad receiving a power supply potential and a pad receiving a ground potential both formed on a chip, and a power supply potential line and a ground potential line connected to respective pads and formed in a loop manner along a circumference of the chip. The semiconductor integrated circuit device includes a first data output circuit provided for a data output terminal proximate to a predetermined potential pad, and a second data output circuit provided for a data output terminal distant from the predetermined potential pad. First and second data output circuits drive corresponding data output terminals to the predetermined potential in two steps at a lower rate and a higher rate in accordance with an internal output data signal. First and second data output circuits include components for compensating for and canceling an influence on driving the corresponding output nodes due to the difference of distances to the predetermined pad therefrom. As a result, data is provided at a high speed and without overshoot, undershoot or ringing.
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