Printed circuit board, power supply apparatus, and image forming apparatus
    2.
    发明公开
    Printed circuit board, power supply apparatus, and image forming apparatus 有权
    Gedruckte Leiterplatte,Stromversorgungsvorrichtung und Bildformungsvorrichtung

    公开(公告)号:EP2900042A1

    公开(公告)日:2015-07-29

    申请号:EP15153412.0

    申请日:2012-06-11

    Abstract: Printed circuit board 601, 603 comprises a piezoelectric transformer 101 including a piezoelectric element 506 with a primary side electrode pair 507A, 507B and a secondary side electrode 508, an electrically conductive resistor 515 formed from a conductive coating connecting the primary side electrode pair, and a slit 610 formed in the circuit board at a location between a first position where the primary side electrode pair is connected to the circuit board and a second position where the secondary side electrode is connected to the circuit board, and the location being different from a position facing the conductive resistor connected to the circuit board. A discharge current is discharged via the resistor 515 to protect a semiconductor component from the discharge current. Since neither a short-circuit terminal nor conductive jig is required, electrostatic discharge damage to a semiconductor component can be prevented by a low-cost arrangement.

    Abstract translation: 印刷电路板601,603包括压电变压器101,其包括具有初级侧电极对507A,507B和次级侧电极508的压电元件506,由连接初级侧电极对的导电涂层形成的导电电阻器515和 形成在电路基板上的初级侧电极对与电路基板连接的第一位置和次级侧电极与电路基板连接的第二位置之间的位置处的狭缝610, 面向连接到电路板的导电电阻的位置。 通过电阻器515放电放电电流,以保护半导体元件免于放电电流。 由于不需要短路端子和导电夹具,因此可以通过低成本布置来防止对半导体部件的静电放电损坏。

    LOW FREQUENCY BROAD BAND ULTRASONIC TRANSDUCERS
    4.
    发明公开
    LOW FREQUENCY BROAD BAND ULTRASONIC TRANSDUCERS 审中-公开
    低频宽带超声波换能器

    公开(公告)号:EP2844832A2

    公开(公告)日:2015-03-11

    申请号:EP13785040.0

    申请日:2013-05-01

    Applicant: Piezotech, LLC

    Abstract: Low frequency pulse-echo ultrasonic transducers are provided especially suited for use in downhole cement bond evaluation, but usable for various applications. One frequency pulse-echo ultrasonic transducer comprises a transducer stack having alternating layers of a piezoceramic element and an ultrasonic attenuating element that is preferably acoustic impedance matched to the piezoceraniic elements in order to reduce the Q of the transducer stack. Another low frequency pulse-echo ultrasonic transducer comprises an assembly having the present transducer stack disposed on an acoustic attenuating backing and a front face. Yet another low frequency pulse-echo ultrasonic transducer comprises a transducer composite made from a lead metaniobate. Still another frequency pulse-echo ultrasonic transducer comprises a composite stack. A further low frequency pulse-echo ultrasonic transducer comprises a composite stack, wherein multiple drive elements allow driving individual elements at different times. The transducers may be driven in a multiple-pulse time delayed manner.

    Printed circuit board, power supply apparatus, image forming apparatus, and printed circuit board manufacturing method
    5.
    发明授权
    Printed circuit board, power supply apparatus, image forming apparatus, and printed circuit board manufacturing method 有权
    印刷电路板,电源装置,图像形成装置和制造印刷电路板的方法

    公开(公告)号:EP2542040B1

    公开(公告)日:2015-02-25

    申请号:EP12171430.7

    申请日:2012-06-11

    Abstract: A piezoelectric transformer 101 includes a piezoelectric element 506. Two primary side electrodes 507A, 507B exist on the primary side of the piezoelectric element 506. The primary side electrodes 507A, 507B are coupled by a resistor 515 formed from a conductive coating. A discharge current is discharged via the resistor 515 to protect a semiconductor component from the discharge current. Since neither a short-circuit terminal nor conductive jig is required, electrostatic discharge damage to a semiconductor component can be prevented by a low-cost arrangement.

    Abstract translation: 的压电变压器101包括两个初级侧电极507A,507B上的压电元件506初级侧电极507A的初级侧存在,507B通过从导电涂层而形成的电阻器515耦合的压电元件506。 放电电流经由电阻器515放电,以保护从所述放电电流的半导体元件。 由于既不需要短路端子也不导电夹具,一种半导体部件的静电放电损伤可以通过一种低成本的安排来防止。

    PIEZOELECTRIC DEVICE AND MANUFACTURING METHOD FOR PIEZOELECTRIC DEVICE
    6.
    发明公开
    PIEZOELECTRIC DEVICE AND MANUFACTURING METHOD FOR PIEZOELECTRIC DEVICE 审中-公开
    压电器件及其制造方法的压电装置

    公开(公告)号:EP2690782A4

    公开(公告)日:2014-08-20

    申请号:EP12759963

    申请日:2012-03-21

    Abstract: Provided are a piezoelectric device that allows for an improvement in the power durability of an electrode formed on a piezoelectric thin film and a significant reduction in etchant concentration or etching time and a method for manufacturing such a piezoelectric device. Among a +C plane (22) on the +Z axis side of a piezoelectric thin film (20) and a -C plane (12) on the -Z axis side of the piezoelectric thin film (20), the -C plane (12) on the -Z axis side of the piezoelectric thin film (20) is etched. Thus, -Z planes (21) of the piezoelectric thin film (20) on which epitaxial growth is possible are exposed. Ti is epitaxially grown on the -Z planes (21) of the piezoelectric thin film (20) in the -Z axis direction such that the crystal growth plane thereof is parallel to the -Z planes (21) of the piezoelectric thin film (20). Al is then epitaxially grown on the surface of the Ti electrode (65) in the -Z axis direction such that the crystal growth plane thereof is parallel to the -Z planes (21) of the piezoelectric thin film (20).

    Abstract translation: 本发明提供一种压电装置做允许对在形成于压电薄膜和在蚀刻剂浓度,蚀刻时间显著减少和用于制造压电装置搜索的方法的电极的功率耐久性的改善。 中的+ C面(22)上的压电薄膜(20)和在所述压电薄膜(20)的Z轴侧的-c面(12)的+ Z轴侧,C面( 12)上的压电薄膜的-Z轴侧(20)被蚀刻。 因此,压电薄膜(20),其上的外延生长是可能的Z平面(21)被暴露。 Ti的外延生长在所述压电薄膜的-Z面(21)(20)在所测试的Z轴方向的平面内做其晶体生长是平行于压电薄膜的Z平面(21)(20 )。 的Al,然后外延生长在所测试的Z轴方向的钛电极(65)的表面上做了其晶体生长面是平行于压电薄膜(20)的Z平面(21)。

    PIEZOELECTRIC TRANSDUCERS USING MICRO-DOME ARRAYS
    7.
    发明公开
    PIEZOELECTRIC TRANSDUCERS USING MICRO-DOME ARRAYS 审中-公开
    PIEZOELEKTRISCHE WANDLER MIT MIKROKUPPELARRAYS

    公开(公告)号:EP2676459A2

    公开(公告)日:2013-12-25

    申请号:EP12746454.3

    申请日:2012-02-14

    Abstract: An ultrasonic piezoelectric transducer device includes a transducer array consisting of an array of vibrating elements, and a base to which the array of vibrating elements in the transducer array are attached. The base include integrated electrical interconnects for carrying driving signals and sensed signals between the vibrating elements and an external control circuit. The base can be an ASIC wafer that includes integrated circuitry for controlling the driving and processing the sensed signals. The interconnects and control circuits in the base fit substantially within an area below the array of multiple vibrating elements.

    Abstract translation: 超声波压电换能器装置包括由振动元件阵列组成的换能器阵列,以及连接有换能器阵列中的振动元件阵列的基座。 基座包括用于承载驱动信号的集成电互连和振动元件与外部控制电路之间的感测信号。 基座可以是ASIC晶片,其包括用于控制驱动和处理感测信号的集成电路。 基座中的互连和控制电路基本上配合在多个振动元件的阵列下方的区域内。

    Résonateur thermocompensé en céramique
    8.
    发明公开
    Résonateur thermocompensé en céramique 审中-公开
    Thermokompensierter Resonator aus Keramik

    公开(公告)号:EP2590325A1

    公开(公告)日:2013-05-08

    申请号:EP11187854.2

    申请日:2011-11-04

    Abstract: L'invention se rapporte à un résonateur (1, 11) thermocompensé comportant un corps (5, 15) utilisé en déformation, l'âme (8, 18) du corps (5, 15) étant formé par de la céramique. Selon l'invention, au moins une partie du corps (5, 15) comporte au moins un revêtement (2, 4, 6, 12, 14, 16) dont les variations du module d'Young en fonction de la température ( CTE ) sont de signe opposé à celles ( CTE ) de la céramique utilisée pour l'âme (8, 18) afin de permettre audit résonateur d'avoir une variation de fréquence en fonction de la température au moins au premier ordre (α, β) sensiblement nulle.
    L'invention concerne le domaine des pièces d'horlogerie.

    Abstract translation: 谐振器具有可变形的主体,即棒,其芯(8)由陶瓷制成。 主体的一部分包括导电涂层(2),其中涂层的杨氏模量变化基于温度并且具有与用于芯的陶瓷的杨氏模量变化相反的符号,使得谐振器具有基于温度的频率 零级变化。 身体的核心包括玻璃,金属玻璃,工业陶瓷或陶瓷玻璃。 身体包括四边形形式的部分,身体的面部相同。

    Piezoinjektor
    9.
    发明公开
    Piezoinjektor 审中-公开
    piezoinjector

    公开(公告)号:EP2202404A1

    公开(公告)日:2010-06-30

    申请号:EP09174296.5

    申请日:2009-10-28

    Inventor: Rapp, Holger

    CPC classification number: F02M51/005 F02M63/0026 F02M63/0035 H01L41/04

    Abstract: Ein Piezoinjektor (12) mit einem Piezoaktor (14) ist so auszugestalten, dass bei einer blockierten externen Entladung des Piezoaktors (14) dieser selbstständig seine elektrische Ladung abbaut und diese Funktion bei der Herstellung des Piezoinjektors (12) kostengünstig zu verwirklichen ist.
    Der Piezoinjektor (12) weist zum Piezoaktor (14) führende elektrische Kontaktelemente (26) auf, die zum einen in einem Anschlußstecker (18) und zum anderen in einem davon getrennten Kontaktträger (22) gelagert sind. Durch die Ausfertigung des Anschlußsteckers (18) oder des Kontaktträgers (22) aus einem elektrisch leitfähigem Kunststoff entsteht ein elektrischer Pfad zwischen den Kontaktelementen (26) in der Funktion eines diskreten hochohmigen Widerstandes, der die selbsttätige Entladung des Piezoaktors (12) ermöglicht.
    Der Piezoinjektor (12) findet vorzugsweise Anwendung zur Einspritzung von Kraftstoff in den Brennraum eines Verbrennungsmotors eines Kraftfahrzeugs.

    Abstract translation: 一种压电喷射器(12),具有压电致动器(14)被设计成使得在所述压电致动器(14),自动地降低它的电荷,该功能是在制造压电喷射器(12),以实现成本的封端的外部排出。 面临着被安装在一个连接插头(18),一方面导致电接触元件(26),压电致动器(14)的压电喷射器(12)并且在另一其中分离的接触载体(22)中的一个。 由于该连接器插头(18)或导电塑料的接触载体(22)的拷贝形成在一个离散的高欧姆电阻器,它允许压电致动器(12)的自动放电的功能的接触元件(26)之间的电路径。 压电喷射器(12)优选用于将燃料喷射到机动车辆的内燃机的燃烧室中。

    TUNING ELEMENT AND TUNABLE RESONATOR
    10.
    发明公开
    TUNING ELEMENT AND TUNABLE RESONATOR 有权
    调整可调和谐振

    公开(公告)号:EP2013939A1

    公开(公告)日:2009-01-14

    申请号:EP07730685.0

    申请日:2007-04-17

    Inventor: NÄRHI, Harri

    CPC classification number: H01P7/04 H01L41/04 H01L41/094

    Abstract: A resonator is provided with a tuning element based on piezoelectricity. The piezoelectric basic element includes at least one piezoelectric layer and a metal layer. Such a basic element is first coated with a thin insulating layer and then with a good conductor. The thickness of the conductive coating is greater than the skin depth of a field corresponding to the operating frequency of the structure in the conductor. The tuning element formed in this manner is fastened on, e.g., some inner surface of the resonator cavity and acts to change the natural frequency of the resonator by electric control. When using the tuning element, no mechanical arrangement is required for moving the tuning element. Furthermore, the tuning element does not cause considerable dielectric losses nor intermodulation when being in a radiofrequency electromagnetic field, because the field cannot significantly penetrate through said conductive coating into the piezoelectric material.

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