Copper conductor composition
    1.
    发明授权
    Copper conductor composition 失效
    铜导体组成

    公开(公告)号:US4937016A

    公开(公告)日:1990-06-26

    申请号:US304631

    申请日:1989-02-01

    IPC分类号: H01B1/16 H05K1/09

    CPC分类号: H05K1/092 H01B1/16

    摘要: A copper conductor composition comprising a copper powder, an inorganic oxide powder, a glass powder and an organic vehicle, said copper powder having an average particle size of 0.5 to 3 .mu.m, a tap density of 3.0 to 5.0 g/cm.sup.3, and an oxygen content of 0.05 to 0.15% by weight. Zinc oxide powder and, optionally, nickel powder are used as the inorganic oxide powder. The composition which contains the copper powder having such an oxygen content as low as 0.05 to 0.15% by weight, can provide copper conductors having excellent conductor properties such as solderability, adhesive strength and matching property to resistances.

    摘要翻译: 一种铜导体组合物,其包含铜粉末,无机氧化物粉末,玻璃粉末和有机载体,所述铜粉末的平均粒径为0.5〜3μm,振实密度为3.0〜5.0g / cm 3, 氧含量为0.05〜0.15重量%。 使用氧化锌粉末和任选的镍粉末作为无机氧化物粉末。 含有低至0.05-0.15重量%的氧含量的铜粉末的组合物可以提供具有优异的导电性能的铜导体,例如可焊性,粘合强度和与电阻的匹配性能。

    Copper thick film conductor composition
    2.
    发明授权
    Copper thick film conductor composition 失效
    铜厚膜导体组成

    公开(公告)号:US4865772A

    公开(公告)日:1989-09-12

    申请号:US271543

    申请日:1988-11-15

    CPC分类号: H05K1/092 H01B1/16

    摘要: A copper-containing thick film conductor composition comprising 55 to 95% by weight of an inorganic powder and 45 to 5% by weight of an organic medium, said inorganic powder comprising 100 parts by weight of a copper powder, 0.05 to 3 parts by weight of a zinc oxide powder, 1 to 7 parts by weight of a lead borate glass powder, 0.2 to 5 parts by weight of a borosilicate glass powder and 0 to 10 parts by weight of a copper snboxide powder having an average particle size of not more than 1.0 .mu.m. The composition of the present invention is excellent in solderability and adhesive strength to the substrate.

    摘要翻译: 一种含有55〜95重量%的无机粉末和45〜5重量%的有机介质的含铜厚膜导体组合物,所述无机粉末含有100重量份的铜粉,0.05〜3重量份 的氧化锌粉末,1〜7重量份的硼酸铅玻璃粉末,0.2〜5重量份的硼硅酸盐玻璃粉末和0〜10重量份的平均粒径不大于的锡粉末粉末 超过1.0亩。 本发明的组合物对于基材的可焊性和粘合强度优异。

    Semiconductor substrates of high reliability ceramic metal composites
    10.
    发明授权
    Semiconductor substrates of high reliability ceramic metal composites 失效
    高可靠性陶瓷金属复合材料的半导体衬底

    公开(公告)号:US6054762A

    公开(公告)日:2000-04-25

    申请号:US917327

    申请日:1997-08-25

    摘要: A paste of active metallic brazing material is applied to the entire surface of each side of aluminum nitride or alumina ceramic substrate 1; circuit forming copper plate 3 having a thickness of 0.3 mm is placed in contact with one surface of the substrate and a heat dissipating copper plate 4 having a thickness of 0.25 mm placed in contact with the other surface; the individual members are compressed together and heated at 850.degree. C. in a vacuum furnace to form a joint; an etching resist is applied to the circuit forming copper plate and etching is performed with an iron chloride solution to form a circuit pattern and the unwanted brazing material is removed from the marginal portions; a second resist layer is applied and etched with an iron chloride solution to form a second marginal step; a third resist layer is similarly applied and etched to form a third marginal step; the completed circuit board having three marginal steps of which the lowest one is solely or partly made of the brazing material can withstand 1,500 heat cycles, which is the result that has ben unattainable by the prior art. Having such high heat cycle characteristics, the circuit board is suitable for use as semiconductor substrate in automobiles, electric trains and other applications that require high output power.

    摘要翻译: 在氮化铝或氧化铝陶瓷基板1的各侧的整个表面上涂敷活性金属钎料的糊状物, 将厚度为0.3mm的电路形成铜板3放置成与基板的一个表面接触,并且将厚度为0.25mm的散热铜板4放置成与另一个表面接触; 将各个构件压缩在一起,并在真空炉中在850℃下加热以形成接头; 将抗蚀剂施加到形成铜电路的电路上,用氯化铁溶液进行蚀刻以形成电路图案,并且从边缘部分去除不想要的钎焊材料; 施加第二抗蚀剂层并用氯化铁溶液蚀刻以形成第二边缘步骤; 类似地施加和蚀刻第三抗蚀剂层以形成第三边缘步骤; 完成的电路板具有三个边缘台阶,其中最低的一个仅由或部分由钎焊材料制成,可承受1500次热循环,这是现有技术无法实现的结果。 具有这样高的热循环特性,电路板适用于需要高输出功率的汽车,电动列车和其他应用中的半导体衬底。