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    Piezoelectric element and process for production thereof
    91.
    发明授权
    Piezoelectric element and process for production thereof 有权
    压电元件及其制造方法

    公开(公告)号：US06565997B2

    公开(公告)日：2003-05-20

    申请号：US09953674

    申请日：2001-09-17

    Applicant: Toshikatsu Kashiwaya

    Inventor： Toshikatsu Kashiwaya

    IPC: B32B900

    CPC classification number: H01L41/0805 ,  C04B35/493 ,  C04B35/499 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3279 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/786 ,  H01L41/0973 ,  H01L41/1875 ,  H01L41/314 ,  H01L41/43 ,  Y10T29/42

    Abstract: A piezoelectric element includes a ceramic substrate, a piezoelectric ceramic composition composed mainly of a PbMg1/3Nb2/3O3—PbZrO3—PbTiO3 ternary system solid solution composition containing 0.05 to 10.0% by weight of NiO, based on the ceramic composition. Electrodes are electrically connected to the piezoelectric. The piezoelectric is solidly attached to the ceramic substrate directly or via part of or all of the electrodes. The piezoelectric ceramic composition is represented by the following general formula: Pbx(Mgy/3Nb2/3)aTibZrcO3, wherein 0.95≦x≦1.05; 0.8≦y≦1.0; a, b and c are decimals falling in a range surrounded by (a,b,c)=(0.550, 0.425, 0.025), (0.550, 0.325, 0.125), (0.375, 0.325, 0.300), (0.100, 0.425, 0.475), (0.100, 0.475, 0.425) and (0.375, 0.425, 0.200), and a+b+c=1.000. This piezoelectric element has very high piezoelectric properties, is superior in vibration transmittability between ceramic substrate and piezoelectric, and can provide an actuator or sensor of small size and high integration.

    Abstract translation: 压电元件包括​​陶瓷基板，主要由基于陶瓷组合物的含有0.05至10.0重量％NiO的PbMg1 / 3Nb2 / 3O3-PbZrO3-PbTiO3三元系固溶体组合物组成的压电陶瓷组合物。 电极与压电电连接。 压电体直接或通过部分或全部电极固定在陶瓷衬底上。 压电陶瓷组合物由以下通式表示：Pbx（Mgy / 3Nb2 / 3）aTibZrcO3，其中0.95 <= x <= 1.05; 0.8 <= y <= 1.0; （a，b，c）=（0.550,0.425,0.025），（0.550,0.325,0.125），（0.375,0.325,0.300），（0.100,0.425， 0.475），（0.100,0.475,0.425）和（0.375,0.425,0.200）和a + b + c = 1.000。 该压电元件具有非常高的压电性能，陶瓷基板和压电体之间的振动传递性优异，并且可以提供小尺寸和高集成度的致动器或传感器。

    Ceramic piezoelectric and devices using the piezoelectric
    92.
    发明申请
    Ceramic piezoelectric and devices using the piezoelectric 有权
    陶瓷压电和器件采用压电

    公开(公告)号：US20020123421A1

    公开(公告)日：2002-09-05

    申请号：US09798707

    申请日：2001-03-02

    Inventor： Sang-Wook Cheong ,  Tae-Yeong Koo

    IPC: C04B035/00

    CPC classification number: H01L41/187 ,  C04B35/499

    Abstract: A device includes a polycrystalline body having a stoichiometry that is described by nullPb(MgnullNbnull)O3null(1nullx)nullPbTiO3nullx. The value of x is in a range of about 0.31 to about 0.47.

    Abstract translation: 一种器件包括具有由[Pb（Mg 1/3 Nb b O）]（1-x）[PbTiO 3] x描述的化学计量的多晶体。 x的值在约0.31至约0.47的范围内。

    Ferroelectric ceramics
    94.
    发明授权
    Ferroelectric ceramics 有权
    铁电陶瓷

    公开(公告)号：US06329656B1

    公开(公告)日：2001-12-11

    申请号：US09510570

    申请日：2000-02-22

    Applicant: Roger William Whatmore

    Inventor： Roger William Whatmore

    IPC: H01L3700

    CPC classification number: C04B35/493 ,  C04B35/491 ,  C04B35/499 ,  G01J5/046 ,  G01J5/34 ,  H01L37/025

    Abstract: A ferroelectric ceramic for use as a pyroelectric is provided. In a disclosed embodiment, the ceramic has the composition: Pb1+&dgr;{[(Mg⅓Nb⅔)y(Zr1−xTix)1−y]1−zAz}O3 where: 0.05≧67 ≧0 0.42≧x>0 0.42≧y>0 0.05≧z>0 and wherein A is a cationic multivalent octahedral site substituent. The ferroelectric ceramic is useful as an active pyroelectric material in infrared detecting devices.

    Abstract translation: 提供了用作热释电的铁电陶瓷。 在所公开的实施方案中，陶瓷具有以下组成：其中：A是阳离子多价八面体位点取代基。铁电陶瓷是有用的 作为红外线检测装置中的活性热电材料。

    Method of manufacturing piezoelectric materials
    95.
    发明授权
    Method of manufacturing piezoelectric materials 失效
    制造压电材料的方法

    公开(公告)号：US6156259A

    公开(公告)日：2000-12-05

    申请号：US540028

    申请日：1995-10-06

    Applicant: Motoyuki Nishizawa ,  Mineharu Tsukada ,  Kaoru Hashimoto ,  Nobuo Kamehara

    Inventor： Motoyuki Nishizawa ,  Mineharu Tsukada ,  Kaoru Hashimoto ,  Nobuo Kamehara

    IPC: C04B35/46 ,  C04B35/472 ,  C04B35/497 ,  C04B35/499 ,  C04B35/645 ,  H01L41/187 ,  H01L41/39 ,  C04B33/32

    CPC classification number: C04B35/497 ,  C04B35/499 ,  C04B35/6455 ,  H01L41/1875 ,  H01L41/43

    Abstract: In a method of manufacturing piezoelectric ceramics by molding pre-fired or calcined powders of ingredients of a piezoelectric ceramic material and sintering the powder mold at a high pressure, the powder mold is pre-sintered at an atmospheric pressure before sintering at high pressure (HIP). Preferably, after the sintering HIP step, a thermal treatment is performed at a temperature of from 500 to 1000.degree. C. under an oxidizing atmosphere. For a Pb(Zn.sub.1/3 Nb.sub.2/3)O.sub.3 --PbTiO.sub.3 based piezoelectric ceramic, the composition is preferably set to (Pb.sub.1-x Ba.sub.x)[(Zn.sub.1/3 Nb.sub.2/3).sub.1-y Ti.sub.y ]O.sub.3, where 0.001

    Abstract translation: 在通过模制压电陶瓷材料的预成型或煅烧粉末并在高压下烧结粉末模具来制造压电陶瓷的方法中，在高压烧结（HIP）之前将粉末模具在大气压下预烧结 ）。 优选在烧结HIP工序后，在氧化气氛下，在500〜1000℃的温度下进行热处理。 对于Pb（Zn1 / 3Nb2 / 3）O3-PbTiO3基压电陶瓷，组合物优选设定为（Pb1-xBax）[（Zn1 / 3Nb2 / 3）1-yTiy] O3，其中0.001

    Composition of dielectric ceramics
    97.
    发明授权
    Composition of dielectric ceramics 失效
    介电陶瓷的组成

    公开(公告)号：US5459115A

    公开(公告)日：1995-10-17

    申请号：US124552

    申请日：1993-09-22

    Applicant: Hiroshi Kagata ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Junichi Kato ,  Keiji Nishimoto

    Inventor： Hiroshi Kagata ,  Tatsuya Inoue ,  Ichiro Kameyama ,  Junichi Kato ,  Keiji Nishimoto

    IPC: C04B35/497 ,  C04B35/499 ,  H01B3/12 ,  H01G4/12 ,  C04B35/46

    CPC classification number: C04B35/497 ,  C04B35/499 ,  H01B3/12 ,  H01G4/1254

    Abstract: The dielectric composition according to the present invention is used in a microwave band and is characterized in having a low sintering temperature and a property to be controllable independently in the respect of a dielectric constant and a temperature coefficient of the resonant frequency.The dielectric composition is represented by the formula:A.sub.1+a BO.sub.3+a (a.ltoreq.0)wherein A site mainly contains at least Pb atom and Ca atom which is more than 20 wt % of A and further may contain Sr or Ba atom, and B site mainly contains Fe and Nb atoms and further contains at least one atom selected from the group comprising Ti and W and may contain at least one atom selected from the group comprising Cr, Mn, Co, Ni, Cu, Zn, Si, Al, Mg, Bi and Sb.

    Abstract translation: 根据本发明的电介质组合物用于微波带，其特征在于具有低介电常数和共振频率的温度系数的烧结温度和独立控制的性质。 电介质组成由下式表示：A1 + aBO3 + a（a

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