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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsSeiichi Nakatani, Tsutomu Nishimura, Satoru Yuhaku, Minehiro Itagaki
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Disclosed are a CuO conductor paste which is effective for making a multilayered ceramic body, the conductor material of which is made of copper, and a method of manufacturing a multilayered ceramic body using the conductor paste. The conductor paste is made of CuO as the main component with an addition of at least one of PbO-based glass, or any of Bi.sub.2 O.sub.3 -based glass, CuO-based glass and CuAl.sub.2 O.sub.4 as the additive. The multilayered ceramic body is manufactured by a method comprising a forming process for making a multilayered body from the conductor paste and dielectric material, a binder removing process by heat treating the multilayered body, thus obtained, in air, a reduction process for reducing CuO to copper in a mixed gas atmosphere of hydrogen and nitrogen, and a sintering process for sintering the multilayered body thus reduced in a nitrogen gas atmosphere.
A conductor composition consisting essentially of an inorganic component and an organic vehicle, wherein said inorganic component consists essentially of 85 to 99.5 weight % of powdered CuO, and 0.5 to 15 weight % of at least one member selected from the groups consisting of powdered PbO-based glass comprising 5 to 70 weight % of PbO, powdered Bi.sub.2 O.sub.3 -based glass comprising 5 to 60 weight % of Bi.sub.2 O.sub.3, powdered CuO-based glass comprising 1 to 30 weight % of CuO, and powdered CuAl.sub.2 O.sub.4.
Dependencies are inferred from the claim text.