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    • 33. 发明专利
    • LAMINATED HEAT DISSIPATING MEMBER, POWER SEMICONDUCTOR DEVICE USING IT, AND METHOD OF PRODUCTION
    • JP2001217362A
    • 2001-08-10
    • JP2000023424
    • 2000-01-31
    • NGK INSULATORS LTD
    • KIDA MASAHIROISHIKAWA TAKAHIROARAKI KIYOSHIBESSHO HIROKIMAKINO TAKUMA
    • H01L23/373C04B37/02H01L23/36
    • PROBLEM TO BE SOLVED: To provide a laminated heat dissipating member comprising a bonded body of a metal based composite material and an insulating substrate imparted with a heat sink function excellent in heat dissipation properties and heat cycle characteristics in which cracking due to difference in the coefficient of thermal expansion between the insulating substrate, i.e., a heat dissipating plate, and the metal based composite material is substantially eliminated, a power semiconductor device comprising the laminated heat dissipating member and the laminated heat dissipating member, and a method for producing a power semiconductor device comprising the laminated heat dissipating member. SOLUTION: The laminated heat dissipating member comprising the bonded body of the metal based composite material and the insulating substrate imparted with a heat sink function is produced by a method comprising a step for treating the bonding surface of the insulating substrate previously in order to ensure wettability to a soldering material or a metal, as required, a step for mounting ceramic particles previously surface treated in order to ensure wettability to the soldering material or the metal on the insulating substrate, a step for placing the soldering material on the ceramic particles, and a step for producing the metal based composite material reacted on the soldering material by thermally fusing the soldering material to make it permeate into the gap between the ceramic particles and bonding the metal based composite material to the insulating substrate.
    • 36. 发明专利
    • Sic/al-based composite material and method for producing the same
    • SIC / AL系复合材料及其制造方法
    • JP2010064954A
    • 2010-03-25
    • JP2009209725
    • 2009-09-10
    • Ngk Insulators Ltd日本碍子株式会社
    • KIDA MASAHIROKATSUTA YUJI
    • C04B35/565C22C1/10
    • PROBLEM TO BE SOLVED: To impregnate a metal in a short time even in the case of pressureless impregnation. SOLUTION: At first, a powdery mixture obtained by mixing titania (TiO 2 ) as an impregnation accelerating material and silicon carbide powder in such a manner that the grain size ratio of the impregnation accelerating material to the silicon carbide reaches ≤1/10 and the volume ratio of the impregnation accelerating material to the silicon carbide reaches ≥0.15 is produced, and the powdery mixture is formed into a preform. The preform is charged to a carbon crucible, and, in a state where an Al alloy ingot is placed on the preform, heating is performed to 1,200°C in a vacuum atmosphere, thus the Al alloy is impregnated into the preform so as to be an impregnated body. Thereafter, the impregnated body is gradually cooled so as to obtain an SiC/Al based composite material. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:即使在无压浸渍的情况下也能在短时间内浸渍金属。 解决方案:首先,通过将二氧化钛(TiO 2 / SB> 2 )作为浸渍促进材料和碳化硅粉末混合而获得的粉末混合物,使得浸渍加速材料的晶粒尺寸比 碳化硅达到≤1/ 10,并且产生浸渍加速材料与碳化硅的体积比达到≥0.15,并将粉末混合物形成预成型体。 将预成型体装入碳坩埚中,在将Al合金锭放置在预制件上的状态下,在真空气氛中进行1200℃的加热,将Al合金浸渍到预成型体中 浸渍体。 然后,将浸渍体逐渐冷却,得到SiC / Al系复合材料。 版权所有(C)2010,JPO&INPIT
    • 37. 发明专利
    • Method of producing composite material, and composite material
    • 生产复合材料的方法和复合材料
    • JP2005023331A
    • 2005-01-27
    • JP2003143946
    • 2003-05-21
    • Ngk Insulators Ltd日本碍子株式会社
    • IKEMATSU TAKATOSHIKIDA MASAHIROISHIKAWA TAKAHIRO
    • B22D19/00B22D19/14C22C1/10C22C21/00
    • PROBLEM TO BE SOLVED: To provide a method capable of producing a composite material having a high denseness at a low production cost in a short and simple process without needing high temperature or high pressure. SOLUTION: In the method of producing the composite material, aluminum molten metal is impregnated into mixed materials 2a and 2b comprising prescribed metal powder and reinforcing material, so that a composite material 5 is obtained. The mixed material 2a is filled into the internal space 1a of a reaction vessel 1 as a first compact 12 compacted so that the volume ratio of the metal powder/the reinforcing material and porosity satisfy prescribed relation. Further, the mixed material 2b is filled so as to fill a part of the internal spaces of the impregnation holes 8a in a cover body 8 as a second compact 14 compacted so that the volume ratio of the metal powder/the reinforcing material and porosity satisfy prescribed relation and also the volume ratio of the metal powder/the reinforcing material reaches the value equal to or below that in the first compact 12. Thereafter, aluminum molten metal is impregnated through the impregnation holes 8a of the cover body 8. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够在短而简单的工艺中以低生产成本生产具有高致密度的复合材料的方法,而不需要高温或高压。 解决方案:在制造复合材料的方法中,将铝熔融金属浸渍到包含规定的金属粉末和增强材料的混合材料2a和2b中,从而获得复合材料5。 将混合材料2a填充到作为压实的第一压块12的反应容器1的内部空间1a中,使得金属粉末/增强材料的体积比和孔隙率满足规定的关系。 此外,填充混合材料2b,以填充作为压实的第二压块14的盖体8中的浸渍孔8a的内部空间的一部分,使得金属粉末/增强材料的体积比和孔隙率满足 规定关系,并且金属粉末/增强材料的体积比达到等于或低于第一压块12中的值。此后,铝熔融金属通过盖体8的浸渍孔8a浸渍。 版权所有(C)2005,JPO&NCIPI
    • 38. 发明专利
    • Method for manufacturing composite material, and composite material
    • 制备复合材料的方法和复合材料
    • JP2004346368A
    • 2004-12-09
    • JP2003144081
    • 2003-05-21
    • Ngk Insulators Ltd日本碍子株式会社
    • KIDA MASAHIROIKEMATSU TAKATOSHIISHIKAWA TAKAHIRO
    • B22D19/00B22D19/14B22D21/02B22D21/06C22C1/10C22C21/00
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a composite material by which a composite material having high denseness and heat resistance (high-temperature strength) can be manufactured at a low cost and low energy by a shortened and simplified manufacturing process while dispensing with high-temperature/high-pressure conditions .
      SOLUTION: In the method for manufacturing the composite material, a mixed material 2 containing prescribed metal powder 3 and reinforcement 15 is impregnated with molten aluminum to obtain the composite material 5. An internal space 1a of a reaction vessel 1 is filled with the mixed material 2 in the form of a compact prepared by performing compaction so that a volume ratio (X) between the metal powder and the reinforcement and a porosity (ε) satisfy a prescribed relation. Then the molten aluminum is impregnated via an impregnation hole 8a of a cover body 8.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决的问题:提供一种复合材料的制造方法,通过该复合材料的制造,可以通过缩短和简化的制造以低成本和低能量制造具有高致密度和耐热性(高温强度)的复合材料 同时分配高温/高压条件。 解决方案:在复合材料的制造方法中,将含有规定金属粉末3和增强材料15的混合材料2浸渍有熔融铝,得到复合材料5.反应容器1的内部空间1a填充有 通过进行压实制备的压块形式的混合材料2使得金属粉末和增强材料之间的体积比(X)和孔隙率(ε)满足规定的关系。 然后,通过盖体8的浸渍孔8a浸渍熔融铝。版权所有(C)2005,JPO&NCIPI