Solder paste
    104.
    发明授权
    Solder paste 有权
    焊膏

    公开(公告)号:US08961709B1

    公开(公告)日:2015-02-24

    申请号:US10588647

    申请日:2004-03-09

    Abstract: A solder paste using a Sn—Ag base, Sn—Cu base, or similar alloy powder has a high melting point, so it causes thermal damage to electronic devices. Sn—Ag—In base lead-free solder alloys having a low melting temperature have been studied, but they are difficult to use because they cause much occurrence of chips standing up during reflow.The present invention forms a solder paste by separating a Sn—Ag—In base lead-free solder into first and second solder alloy powders for which the difference in their peak temperatures measured by differential thermal analysis is at least 10° C. and blends the mixed powders with a flux.

    Abstract translation: 使用Sn-Ag基底,Sn-Cu基底或类似合金粉末的焊膏具有高熔点,因此对电子器件造成热损伤。 已经研究了具有低熔融温度的Sn-Ag-In基底无铅焊料合金,但是由于它们在回流期间引起大量的芯片堆积而难以使用。 本发明通过将Sn-Ag-In基底无铅焊料分离成通过差示热分析测量的其峰值温度差异至少为10℃的第一和第二焊料合金粉末形成焊膏,并将 混合粉末与助焊剂。

    CONDUCTIVE PATTERN FORMATION METHOD AND COMPOSITION FOR FORMING CONDUCTIVE PATTERN VIA PHOTO IRRADIATION OR MICROWAVE HEATING
    105.
    发明申请
    CONDUCTIVE PATTERN FORMATION METHOD AND COMPOSITION FOR FORMING CONDUCTIVE PATTERN VIA PHOTO IRRADIATION OR MICROWAVE HEATING 审中-公开
    导电图案形成方法和组合物通过照片辐射或微波加热形成导电图案

    公开(公告)号:US20140332734A1

    公开(公告)日:2014-11-13

    申请号:US14360361

    申请日:2012-11-26

    Inventor: Hiroshi Uchida

    Abstract: To provide a conductive pattern formation method capable of improving conductivity of a conductive pattern and a composition for forming a conductive pattern by means of photo irradiation or microwave heating. A composition for forming a conductive pattern that contains copper particles each having a copper oxide thin film formed on the entire or a part of a surface thereof, plate-like silver particles each being 10 to 200 nm thickness, and a binder resin is prepared. The composition for forming a conductive pattern is printed in a pattern having a desired shape on a substrate. Photo irradiation or microwave heating is applied to the printed pattern to thereby produce a copper/silver sintered body, to form a conductive film.

    Abstract translation: 提供能够通过光照射或微波加热提高导电图案的导电性和用于形成导电图案的组合物的导电图案形成方法。 制备含有形成在其整个或一部分表面上的氧化铜薄膜的铜颗粒的导电图案的组合物,厚度为10至200nm的板状银颗粒和粘合剂树脂。 用于形成导电图案的组合物以基板上具有所需形状的图案印刷。 对印刷图案施加照射照射或微波加热,从而制造铜/银烧结体,以形成导电膜。

    Conductive paste, multilayer ceramic substrate and its production method
    107.
    发明授权
    Conductive paste, multilayer ceramic substrate and its production method 有权
    导电胶,多层陶瓷基片及其制作方法

    公开(公告)号:US08501299B2

    公开(公告)日:2013-08-06

    申请号:US12161848

    申请日:2007-01-23

    Abstract: A conductive paste comprising 88-94% by mass of Ag powder having an average particle size of 3 μm or less and 0.1-3% by mass of Pd powder, the total amount of the Ag powder and the Pd powder being 88.1-95% by mass. A multilayer ceramic substrate obtained by laminating and sintering pluralities of ceramic green sheets, and having conductor patterns and via-conductors inside, the via-conductors being formed in via-holes having diameters of 150 μm or less after sintering, containing Ag crystal particles having a particle size of 25 μm or more, and having a porosity of 10% or less.

    Abstract translation: 一种包含平均粒径为3μm以下的Ag粉末88〜94质量%,Pd粉末为0.1〜3质量%的导电性糊剂,Ag粉末和Pd粉末的总量为88.1〜95质量% 的质量。 一种多层陶瓷基板,其通过在多个陶瓷生片层叠并烧结多个陶瓷生片,并且在其内部具有导体图案和通孔导体,所述通孔导体形成在烧结后的直径为150μm以下的通孔中,所述通孔导体包含具有 粒径为25μm以上,孔隙率为10%以下。

    WIRING BOARD, PRODUCTION METHOD OF THE SAME, AND VIA PASTE
    108.
    发明申请
    WIRING BOARD, PRODUCTION METHOD OF THE SAME, AND VIA PASTE 审中-公开
    接线板,其生产方法,通过PASTE

    公开(公告)号:US20130068513A1

    公开(公告)日:2013-03-21

    申请号:US13700999

    申请日:2011-12-19

    Abstract: Disclosed is a multilayer wiring board having via-hole conductors, the via-hole conductor including a metal portion and a resin portion. The metal portion includes a first metal region which includes a link of copper particles forming a path electrically connecting a first wiring and a second wiring; a second metal region mainly composed of a metal selected from the group consisting of tin, a tin-copper alloy, and a tin-copper intermetallic compound; a third metal region mainly composed of bismuth; and a fourth metal region composed of tin-bismuth solder particles. The link has plane-to-plane contact portions where the copper particles are in plane-to-plane contact with one another. At least a part of the second metal region is in contact with the first metal region. The tin-bismuth solder particles, each surrounded by the resin portion, are interspersed in the via-hole conductor.

    Abstract translation: 公开了一种具有通孔导体的多层布线板,该通孔导体包括金属部分和树脂部分。 金属部分包括第一金属区域,其包括形成电连接第一布线和第二布线的路径的铜颗粒的连接; 主要由选自锡,锡 - 铜合金和锡 - 铜金属间化合物的金属组成的第二金属区域; 主要由铋组成的第三金属区域; 以及由锡 - 铋焊料颗粒组成的第四金属区域。 该连接件具有平面至平面的接触部分,其中铜颗粒彼此面对面地接触。 第二金属区域的至少一部分与第一金属区域接触。 由树脂部分包围的锡 - 铋焊料颗粒散布在通孔导体中。

    MULTILAYER WIRING BOARD, PRODUCTION METHOD OF THE SAME, AND VIA PASTE
    109.
    发明申请
    MULTILAYER WIRING BOARD, PRODUCTION METHOD OF THE SAME, AND VIA PASTE 审中-公开
    多层接线板,其生产方法和通过浆料

    公开(公告)号:US20130008698A1

    公开(公告)日:2013-01-10

    申请号:US13636055

    申请日:2011-12-06

    Abstract: A multilayer wiring board having via-hole conductors which electrically connects a plurality of wirings arranged in a manner such that an insulating resin layer is placed between the wirings, wherein: the via-hole conductors each include copper, tin, and bismuth, namely, a first metal region including a link of copper particles in plane-to-plane contact with one another, the link electrically connecting the wirings, a second metal region mainly composed of one or more of tin, a tin-copper alloy, and a tin-copper intermetallic compound, and a third metal region mainly composed of bismuth; at least a part of the second metal region is in contact with the surface of the copper particles, the surface excluding the area of the plane-to-plane contact portion of the link; and the Cu, Sn, and Bi in the metal portion are of a composition having a specific weight ratio (Cu:Sn:Bi).

    Abstract translation: 一种多孔布线基板,其具有导通导体,该多孔布线基板以布线的方式电连接多个布线,使得绝缘树脂层位于布线之间,其中:所述通孔导体各自包括铜,锡和铋, 第一金属区域,包括铜颗粒彼此平面接触的连接部,所述连接部电连接布线,主要由锡,锡 - 铜合金和锡中的一种或多种构成的第二金属区域 - 金属间化合物和主要由铋组成的第三金属区域; 所述第二金属区域的至少一部分与所述铜粒子的表面接触,所述表面除了所述连接体的所述平面对接触部分的面积; 并且金属部分中的Cu,Sn和Bi具有比重(Cu:Sn:Bi)的组成。

    Conductive compositions containing blended alloy fillers
    110.
    发明授权
    Conductive compositions containing blended alloy fillers 有权
    含有混合合金填料的导电组合物

    公开(公告)号:US08221518B2

    公开(公告)日:2012-07-17

    申请号:US12751030

    申请日:2010-03-31

    Abstract: The present invention provides electrically and thermally conductive compositions for forming interconnections between electronic elements. Invention compositions comprise three or more metal or metal alloy particle types and an organic vehicle comprising a flux that is application specific. The first particle type includes a reactive high melting point metal that reacts with a reactive low melting point metal(s) in the other particles to form intermetallic species. The reactive low melting point metal(s) of the invention are provided in two distinct particle forms. The first reactive low melting point metal particle includes a carrier that facilitates the reaction with the reactive high melting point metal. The second reactive low melting point metal particle acts primarily as a source of the reactive low melting point metal. Combination of the three particle types provides several advantages including reduction of the undesirable characteristics of the carrier metal while preserving and, in some embodiments, enhancing, the advantageous facilitation of the metallic reaction.

    Abstract translation: 本发明提供用于形成电子元件之间的互连的导电和导热组合物。 本发明组合物包含三种或更多种金属或金属合金颗粒类型和包含特异性应用的助熔剂的有机载体。 第一颗粒型包括与其它颗粒中的反应性低熔点金属反应以形成金属间物质的反应性高熔点金属。 本发明的反应性低熔点金属以两种不同的颗粒形式提供。 第一反应性低熔点金属颗粒包括促进与反应性高熔点金属反应的载体。 第二反应性低熔点金属颗粒主要作为反应性低熔点金属的来源。 三种颗粒类型的组合提供了几个优点,包括减少载体金属的不期望的特性,同时保留并且在一些实施方案中增强对金属反应的有利促进。

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