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    • 5. 发明专利
    • Conductive composition containing mixed alloy filler
    • 含有混合合金填料的导电组合物
    • JP2014167915A
    • 2014-09-11
    • JP2014059793
    • 2014-03-24
    • Ormet Circuits Incオーメット サーキッツ インク
    • CATHERINE SHEARERKENNETH C HOLCOMBG DELBERT FRIESENMICHAEL C MATTHEWS
    • H01B1/22C22C9/02C22C13/00C22C30/04H01B1/00
    • B22F1/0003B22F1/0059B22F7/064H05K3/321H05K2201/0221H05K2201/0272
    • PROBLEM TO BE SOLVED: To provide a composition which is electrically and thermally conductive, inexpensive and sturdy and is used in forming mutual connections between electric elements at low process temperatures.SOLUTION: A composition contains an organic binder containing particles of three or more metals or metal alloys and optionally a flux in specified applications. A first type of a particle is a composition containing a reactive high-melting-point metal which reacts with a reactive low-melting-point metal in another particle to form an intermetallic compound, and the low-melting-point metal are provided in two different particle forms: a first reactive low-melting-point metal particle contains a carrier which facilitates the reaction with the reactive high-melting-point metal; and a second reactive low-melting-point metal particle acts as a source of reactive low-melting-point metal particle. The combination of the three types of particles reduces undesirable characteristics of the carrier metal, secures effective metal reactions and improves the effects further in some embodiments.
    • 要解决的问题:提供导电和导热的组合物,廉价且坚固并且用于在低温度下形成电气元件之间的相互连接。解决方案:组合物含有含有三种或更多种金属颗粒的有机粘合剂或 金属合金和任选的焊剂。 第一类型的颗粒是含有反应性高熔点金属的组合物,其与另一颗粒中的反应性低熔点金属反应以形成金属间化合物,并且低熔点金属设置在两个 不同的颗粒形式:第一反应性低熔点金属颗粒含有促进与反应性高熔点金属反应的载体; 并且第二反应性低熔点金属颗粒作为反应性低熔点金属颗粒的来源。 三种类型的颗粒的组合降低了载体金属的不期望的特性,确保了有效的金属反应并且在一些实施方案中进一步改善了其效果。
    • 9. 发明专利
    • Multilayer wiring board and method of manufacturing the same
    • 多层接线板及其制造方法
    • JP2013153121A
    • 2013-08-08
    • JP2012128574
    • 2012-06-06
    • Panasonic Corpパナソニック株式会社
    • IWASAKI AKIHITONAKAMURA SADASHIHIMORI GOJIHONJO KAZUHIKO
    • H05K3/46H05K1/11H05K3/40
    • H05K1/115H05K1/036H05K1/0366H05K1/092H05K3/00H05K3/0047H05K3/4069H05K3/4614H05K2201/0141H05K2201/0154H05K2201/0269H05K2201/0272H05K2201/0305H05K2203/0214H05K2203/0278H05K2203/1461Y10T29/49162
    • PROBLEM TO BE SOLVED: To reduce a via-hole resistance, and increase the strength of a via-hole part in a multilayer wiring board in which a conductive paste having copper powder and solder powder is used for a via-hole conductor.SOLUTION: The multilayer wiring board 110 has: an electrically insulative base material 130 composed of an incompressible member; a plurality of wiring lines 120; and a via-hole conductor 140. The via-hole conductor 140 comprises: a resin part 200; and a metal part 190 including at least a first metal region 160 consisting primarily of copper, a second metal region 170 consisting primarily of a tin-copper alloy, and a third metal region 180 consisting primarily of bismuth. The second metal region 170 is larger than a discrete piece of the first metal region 160 and a discrete piece of the third metal region 180; in the second metal region 170, such pieces of the first and third metal regions 160 and 180 are sprinkled so as not to be in contact with one another. The second metal region 170 contains an intermetallic compound CuSnand an intermetallic compound CuSn; the ratio of CuSn/CuSn is 0.10 or less.
    • 要解决的问题:为了减少通孔电阻,并且增加了具有铜粉末和焊料粉末的导电浆料用于通孔导体的多层线路板中的通路孔部分的强度。解决方案: 多层布线板110具有:由不可压缩构件构成的电绝缘基材130; 多条布线120; 和通孔导体140.通孔导体140包括:树脂部分200; 以及金属部件190,其至少包括主要由铜组成的第一金属区域160,主要由锡 - 铜合金组成的第二金属区域170和主要由铋组成的第三金属区域180。 第二金属区域170大于第一金属区域160的分立件和第三金属区域180的分立件; 在第二金属区域170中,第一金属区域160和第三金属区域180的这些块被喷洒以不彼此接触。 第二金属区域170包含金属间化合物CuSn和金属间化合物CuSn; CuSn / CuSn的比例为0.10以下。