Piezoelectric element, fabrication method for the same, and inkjet head, inkjet recording apparatus and angular velocity sensor including the same
    1.
    发明授权
    Piezoelectric element, fabrication method for the same, and inkjet head, inkjet recording apparatus and angular velocity sensor including the same 有权
    压电元件,其制造方法以及喷墨头,喷墨记录装置和包括该压电元件的角速度传感器

    公开(公告)号:US07145285B2

    公开(公告)日:2006-12-05

    申请号:US10894474

    申请日:2004-07-19

    IPC分类号: H01L41/08

    摘要: A piezoelectric element includes a first electrode; a piezoelectric layered film composed of a first piezoelectric film formed on the first electrode film and a second piezoelectric film that is formed on the first piezoelectric film and is controlled in crystal orientation thereof by the first piezoelectric film; and a second electrode film formed on the second piezoelectric film. Each of the first and second piezoelectric films is an aggregate of columnar grains grown unidirectionally along a thickness direction of the piezoelectric layered film. A columnar grain of the second piezoelectric film has a larger cross-sectional diameter than a columnar grain of the first piezoelectric film. A ratio l/d of the thickness l of the piezoelectric layered film to the cross-sectional diameter d of the second piezoelectric film is not less than 20 and not more than 60.

    摘要翻译: 压电元件包括​​第一电极; 压电层叠膜,由形成在第一电极膜上的第一压电膜和形成在第一压电膜上的第一压电膜组成,并由第一压电膜控制晶体取向; 以及形成在第二压电膜上的第二电极膜。 第一和第二压电膜中的每一个是沿着压电层叠膜的厚度方向单向生长的柱状颗粒的集合体。 第二压电膜的柱状晶粒的截面直径比第一压电膜的柱状晶粒大。 压电体层叠膜的厚度l与第二压电体膜的截面直径d的比l / d为20以上60以下。

    Temperature sensor element, temperature sensor having the same and
method for producing the same temperature sensor element
    3.
    发明授权
    Temperature sensor element, temperature sensor having the same and method for producing the same temperature sensor element 失效
    温度传感器元件,温度传感器和相同温度传感器元件的制造方法

    公开(公告)号:US6014073A

    公开(公告)日:2000-01-11

    申请号:US776625

    申请日:1997-01-10

    IPC分类号: G01K7/22 H01C7/02 H01C7/10

    CPC分类号: G01K7/22 G01K7/223 H01C7/023

    摘要: A temperature sensor element for measuring the temperature of exhaust gas from car engines comprises a metallic support having a shape of a flat board, a first electric-insulating film existing on the support, a first temperature sensitive film existing on the first electric-insulating film and having a pair of electrodes, and a second electric-insulating film existing on the temperature sensitive film. The element is superior in thermal shock resistance. The element needs no heat-resistant cap. The element is superior in heat-response since the element has a small heat capacity.

    摘要翻译: PCT No.PCT / JP96 / 01266 Sec。 371日期1997年1月10日 102(e)日期1997年1月10日PCT提交1996年5月10日PCT公布。 出版物WO96 / 35932 日期:1996年11月14日用于测量汽车发动机废气温度的温度传感器元件包括具有平板形状的金属支撑件,存在于支撑件上的第一电绝缘膜,存在于第一温度敏感膜 第一电绝缘膜并具有一对电极和存在于感温膜上的第二电绝缘膜。 该元件具有优异的耐热冲击性。 该元件不需要耐热帽。 该元件具有优异的热响应性,因为该元件具有较小的热容量。

    PIEZOELECTRIC THIN FILM AND METHOD FOR PREPARATION THEOF, AND PIEZOELECTRIC ELEMENT HAVING THE PIEZOELECTRIC THIN FILM, INK-JET HEAD USING THE PIEZOELECTRIC ELEMENT, AND INK-JET RECORDING DEVICE HAVING THE INK-JET HEAD
    6.
    发明授权
    PIEZOELECTRIC THIN FILM AND METHOD FOR PREPARATION THEOF, AND PIEZOELECTRIC ELEMENT HAVING THE PIEZOELECTRIC THIN FILM, INK-JET HEAD USING THE PIEZOELECTRIC ELEMENT, AND INK-JET RECORDING DEVICE HAVING THE INK-JET HEAD 有权
    压电薄膜及其制备方法,具有压电薄膜的压电元件,使用压电元件的喷墨头和具有喷墨头的喷墨记录装置

    公开(公告)号:US07001014B2

    公开(公告)日:2006-02-21

    申请号:US10381995

    申请日:2001-09-26

    IPC分类号: B41J2/45

    摘要: A piezoelectric thin film can achieve a large piezoelectric displacement. A chemical composition of the piezoelectric thin film is expressed by Pb1+a(ZrxTi1−x)O3+a(0.2≦a≦0.6 and 0.50≦x≦0.62). The crystal structure of the piezoelectric thin film is a mixture of a perovskite columnar crystal region (24) having an ionic defect in which a portion of the constitutive elements of an oxygen ion, a titanium ion, and a zirconium ion is missing and a perovskite columnar crystal region (25) of stoichiometric composition having no ionic defect. This configuration allows a residual compressive stress in the crystal to be relaxed by the perovskite columnar crystal region (24) having an ionic defect, thus achieving a large piezoelectric displacement (displacement amount).

    摘要翻译: 压电薄膜可实现较大的压电位移。 压电薄膜的化学组成由Pb 1 + a(Zr x 1 Ti 1-x O)O 3+表示, (0.2 <= a <= 0.6和0.50 <= x <= 0.62)。 压电薄膜的晶体结构是具有离子缺陷的钙钛矿柱状晶体区域(24)的混合物,其中一部分氧离子,钛离子和锆离子的构成元素缺失,钙钛矿 没有离子缺陷的化学计量组成的柱状晶体区域(25)。 这种结构允许通过具有离子缺陷的钙钛矿柱状晶体区域(24)使晶体中的残余压缩应力松弛,从而实现大的压电位移(位移量)。

    Ink jet recording apparatus
    7.
    发明申请
    Ink jet recording apparatus 有权
    喷墨记录装置

    公开(公告)号:US20050001868A1

    公开(公告)日:2005-01-06

    申请号:US10833116

    申请日:2004-04-28

    IPC分类号: B41J2/14 B41J2/155 B41J29/38

    摘要: An ink jet recording apparatus, which performs printing by ink ejection, comprises a pressure chamber in which ink liquid is filled; a nozzle hole 116 which is formed communicating with the pressure chamber; a piezoelectric element 113 which is formed on the pressure chamber, and deforms the pressure chamber by mechanical expansion and contraction, whereby pressure is generated in the pressure chamber and ink is ejected from the nozzle hole 116; and a dew point control unit 123 which keeps a dew point in an atmosphere of the piezoelectric element 113 and the vicinity of the piezoelectric element 113 at a lower value than a dew point in an environment where the ink jet recording apparatus is set. The dew point control unit 123 comprises a compressor 123a, and an air drier 123b which dries compression gas from this compressor 123a and feeds it to the piezoelectric element 113.

    摘要翻译: 通过喷墨进行打印的喷墨记录装置包括其中填充有墨液的压力室; 与压力室连通的喷嘴孔116; 压电元件113,其形成在压力室上,并且通过机械膨胀和收缩使压力室变形,由此在压力室中产生压力,并且从喷嘴孔116喷射墨; 以及露点控制单元123,其在设置有喷墨记录装置的环境中,将压电元件113的气氛中的露点和压电元件113的附近保持在低于露点的值。 露点控制单元123包括压缩机123a和干燥来自该压缩机123a的压缩气体并将其馈送到压电元件113的空气干燥器123b。

    Method of manufacturing a thin film sensor element
    8.
    发明授权
    Method of manufacturing a thin film sensor element 失效
    制造薄膜传感器元件的方法

    公开(公告)号:US6105225A

    公开(公告)日:2000-08-22

    申请号:US600863

    申请日:1996-02-09

    摘要: A method of manufacturing a small, light, highly accurate and inexpensive thin film sensor element is disclosed. The thin film sensor element comprises a sensor holding substrate having an opening part and a multilayer film structure adhered thereon. The multilayer film structure comprises a first electrode film, a second electrode film, and a piezoelectric dielectric oxide film present between the first and second electrode films. The method of manufacturing the thin film sensor element comprises the steps of: forming the multilayer film structure by forming the first electrode film having a (100) plane orientation on a surface of an alkali halide substrate, forming the piezoelectric dielectric oxide thereon, and forming the second electrode film on the piezoelectric dielectric oxide; adhering the multilayer film structure on the surface of the sensor holding substrate having the opening part; and dissolving and removing the alkali halide substrate with water.

    摘要翻译: 公开了一种制造小型,轻型,高精度和廉价的薄膜传感器元件的方法。 薄膜传感器元件包括具有开口部分和粘附在其上的多层膜结构的传感器保持基板。 多层膜结构包括第一电极膜,第二电极膜和存在于第一和第二电极膜之间的压电电介质氧化物膜。 制造薄膜传感器元件的方法包括以下步骤:通过在碱金属卤化物衬底的表面上形成具有(100)面取向的第一电极膜来形成多层膜结构,在其上形成压电电介质氧化物,并形成 压电电介质氧化物上的第二电极膜; 将多层膜结构粘附在具有开口部的传感器保持基板的表面上; 并用水溶解和除去碱金属卤化物基质。

    Capacitance sensor
    10.
    发明授权
    Capacitance sensor 失效
    电容传感器

    公开(公告)号:US5719740A

    公开(公告)日:1998-02-17

    申请号:US595240

    申请日:1996-02-01

    摘要: A small and highly sensitive capacitance type pressure sensor is obtained by filling an alkali halide material such as KBr into a through-hole, forming a conductive thin film on the surface, and dissolving and removing the alkali halide material. An insulating plate disposed with a through-hole in the thickness direction is filled with a molten alkali halide material such as KBr. After forming a conductive thin film on the surface of the alkali halide material filled into the through-hole and the vicinity thereof, the alkali halide material is dissolved by water and removed. In this way, a diaphragm is made of the through-hole and the conductive thin film. A curve of the diaphragm caused by a pressure difference between the both faces of the conductive thin film is detected as a capacitance change between the conductive thin film and the electrode layer.

    摘要翻译: 通过将诸如KBr的碱金属卤化物材料填充到通孔中,在表面上形成导电薄膜,并溶解和除去碱金属卤化物材料,获得小而高灵敏度的电容式压力传感器。 在厚度方向上设置有通孔的绝缘板填充有诸如KBr的熔融卤化碱材料。 在填充到通孔及其附近的碱金属卤化物材料的表面上形成导电薄膜之后,碱金属卤化物材料被水溶解并除去。 以这种方式,隔膜由通孔和导电薄膜制成。 由导电薄膜的两面之间的压力差引起的隔膜的曲线被检测为导电薄膜和电极层之间的电容变化。