IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME
    1.
    发明公开
    IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME 审中-公开
    改进方法电泳沉积FERRO电动MOVIES使用TRI-功能性添加剂和组合物对于这种应用

    公开(公告)号:EP1259660A2

    公开(公告)日:2002-11-27

    申请号:EP00971675.4

    申请日:2000-10-25

    IPC分类号: C25D13/02

    摘要: An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature. Visual and physical examination of stand alone and patterned PZT deposited films show excellent quality obtained in manufacturing a diversity of piezoelectric products, featuring exceptionally high green film uniformity, thickness distribution, and reproducibility to within ± 2 microns for 20 micrometer film thickness. The phosphate ester additive functions by improving stabilization and control of suspension characteristics and properties during the electrophoretic migration process, and by improving desired dimensions, characteristics, and electrical properties of the deposited green film. Thin or thick ferroelectric films, either as stand alone products, or formed on geometrically demanding patterned or non-patterned substrates are produced by using the method. The improved method is applicable to different ferroelectric particulate materials and to different substrates used for manufacturing piezoelectric elements and devices, in a cost effective manner.

    High capacitance capacitor anode
    7.
    发明公开
    High capacitance capacitor anode 审中-公开
    Kondensatoranode mit hoherKapazität

    公开(公告)号:EP1818956A2

    公开(公告)日:2007-08-15

    申请号:EP06004253.8

    申请日:2006-03-02

    发明人: Thon, Assaf

    IPC分类号: H01G9/052

    CPC分类号: H01G9/052 H01G9/0525

    摘要: The invention is a high capacitance capacitor anode manufactured by creating a green anode body from particles of a dielectric oxide film-forming electrical conducting non-agglomerated powder, sintering the green anode body, and anodizing the sintered body. The non-agglomerated powder comprises fine particles having a small average particle size and a narrow size distribution, which gives the green anode body a morphology that allows it to be sintered at temperatures lower than 1200°C. The invention is also a method of manufacturing these anodes.

    摘要翻译: 本发明是通过由电介质氧化膜形成导电非附聚粉末的颗粒形成绿色阳极体,烧结绿色阳极体并阳极氧化烧结体而制造的高容量电容器阳极。 非团聚粉末包含平均粒径小,分布狭窄的细小颗粒,使得阳极主体能够在低于1200℃的温度下烧结。 本发明也是制造这些阳极的方法。

    IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME
    8.
    发明公开
    IMPROVED METHOD OF ELECTROPHORETIC DEPOSITION OF FERROELECTRIC FILMS USING A TRI-FUNCTIONAL ADDITIVE AND COMPOSITIONS FOR EFFECTING SAME 审中-公开
    改进方法电泳沉积FERRO电动MOVIES使用TRI-功能性添加剂和组合物对于这种应用

    公开(公告)号:EP1259660A4

    公开(公告)日:2006-09-13

    申请号:EP00971675

    申请日:2000-10-25

    IPC分类号: C25D13/02 H01L41/24

    摘要: An improved method for depositing ferroelectric particles on a surface of a substrate to form films or stand-alone bodies. The improvement is based on electrophoretic deposition (EPD) of ferroelectric films by using a tri-functional phosphate ester additive having a concentration less than 10 volume percent in the EPD suspension, without the need for addition of a binder. The method includes preparation of the suspension by washing and dispersing ferroelectric particles, for example, commercially available PZT powder, in a polar solvent such as ethanol, followed by addition of the phosphate ester additive to the suspension, and an ultrasound treatment. The suspension is used in EPD of the ferroelectric particles on a prepared substrate. Following EPD, the green film is dried and sintered at high temperature. Visual and physical examination of stand alone and patterned PZT deposited films show excellent quality obtained in manufacturing a diversity of piezoelectric products, featuring exceptionally high green film uniformity, thickness distribution, and reproducibility to within ± 2 microns for 20 micrometer film thickness. The phosphate ester additive functions by improving stabilization and control of suspension characteristics and properties during the electrophoretic migration process, and by improving desired dimensions, characteristics, and electrical properties of the deposited green film. Thin or thick ferroelectric films, either as stand alone products, or formed on geometrically demanding patterned or non-patterned substrates are produced by using the method. The improved method is applicable to different ferroelectric particulate materials and to different substrates used for manufacturing piezoelectric elements and devices, in a cost effective manner.

    METHOD OF ELECTROPHORETIC DEPOSITION OF CERAMIC BODIES FOR USE IN MANUFACTURING DENTAL APPLIANCES
    9.
    发明授权
    METHOD OF ELECTROPHORETIC DEPOSITION OF CERAMIC BODIES FOR USE IN MANUFACTURING DENTAL APPLIANCES 有权
    电泳涂膜参与制造牙科产品陶瓷体的方法中使用

    公开(公告)号:EP1073781B1

    公开(公告)日:2005-06-08

    申请号:EP99911422.6

    申请日:1999-03-16

    IPC分类号: C25D13/02 C25D1/14 A61C13/00

    摘要: A method for electrophoretic deposition of ceramic particles as a green body shaped as a dental appliance, the method comprising the steps of (a) forming a suspension of the ceramic particles in a first polar solvent, the ceramic particles constituting at least about 5 % of the first suspension by weight; (b) passing a direct electrical current through the first suspension, using a deposition electrode (20) shaped as the dental appliance to form a green body; (c) coating the green body with glass particles; and (d) sintering the resultant coated body for obtaining a glass coated all-ceramic dental appliance.

    摘要翻译: 一种用于陶瓷粒子的电泳沉积,成形为牙科器具生坯的方法,该方法包括以下步骤:(a)在第一极性溶剂中形成的悬浮液的陶瓷颗粒的,该陶瓷颗粒构成至少约5%的 第一悬浮液(重量); (B)使直流电流通过所述第一悬浮液中,使用成形为牙科器具以形成生坯的沉积电极(20); (C)涂覆生坯玻璃颗粒; 和(d)烧结所得涂装体,用于获得涂覆全瓷牙科器具的玻璃。

    PROCESS FOR MANUFACTURING A METAL ELECTRODE
    10.
    发明公开
    PROCESS FOR MANUFACTURING A METAL ELECTRODE 有权
    一种用于生产金属电极

    公开(公告)号:EP1399937A1

    公开(公告)日:2004-03-24

    申请号:EP02738584.8

    申请日:2002-06-13

    IPC分类号: H01G9/052

    CPC分类号: H01G9/052

    摘要: AbstractThe present invention provides a process for manufacturing a porous metal electrode, wherein the porosity degree is in the range of 30 to 50% and the metal is capable of forming a stable, uniform, oxide layer having a dielectric constant equal to or greater than 20 (ε ≥ 20), preferably selected from the group consisting of tantalum and niobium, comprising a substantially uniform porous layer of deposited said metal particles thereon. The present invention further relates to a stable suspension for electrophoretically homogeneously deposition of said metal.