摘要:
A conductive paste includes inorganic material powders containing conductive powders and glass powders, an organic vehicle containing an organic binder and an organic solvent, and a metal organic compound.
摘要:
Conductive paste for via connection of a multilayer ceramic substrate, comprising: an inorganic component which consists of 30.0 to 70.0% by weight of powder of conductive material and the remainder being one of glass powder having a softening point higher than a starting point of sintering of insulating material and crystalline glass ceramic powder having a glass transition point higher than the starting point of sintering of the insulating material; and an organics vehicle component which consists of at least organic binder and solvent.
摘要:
A conductive paste includes inorganic material powders containing conductive powders and glass powders, an organic vehicle containing an organic binder and an organic solvent, and a metal organic compound.
摘要:
Conductive ink has an inorganic compound comprising 70.0-95.0 wt. % of CuO which is conductive and 5.0-30.0 wt. % of inorganic binder mixed with each other, and solvent and organic binder in which the inorganic compound is dispersed. The inorganic binder consists of lead borosilicate crystalline glass or aluminum borosilicate crystalline glass soften and crystallizes at 850.degree.-950.degree. C. The diameter of CuO powder of the inorganic compound is 100-7.0 .mu.m. The diameter of the lead borosilicate crystalline glass powder or the aluminum borosilicate crystalline glass powder of the inorganic compound is 1.0-5.0 .mu.m. The organic binder consists of ethyl cellulose or copolymer of polyisobytylmethacrylate and poly.alpha.-methylstyrene. The conductive ink contains the organic binder at 0.5-2.0 wt. %.
摘要:
The method of manufacturing a ceramic substrate having a plurality of bumps of the present invention, includes the steps of: forming a bump forming layer having a plurality of holes therein on at least one of upper and lower faces of a laminated body of green sheets; filling the holes in the bump forming layer with a bump forming paste; sintering the laminated body of the green sheets and the bump forming paste; and forming bumps made of the sintered bump forming paste by removing the bump forming layer.
摘要:
The method of manufacturing a ceramic substrate having a plurality of bumps of the present invention, includes the steps of: forming a bump forming layer having a plurality of holes therein on at least one of upper and lower faces of a laminated body of green sheets; filling the holes in the bump forming layer with a bump forming paste; sintering the laminated body of the green sheets and the bump forming layer; and forming bumps made of the sintered bump forming paste by removing the bump forming layer.
摘要:
A method of making a multi-layered ceramic substrate which includes the steps of laminating a desired number of green sheets each being made of glass ceramics containing at least an organic binder and a solvent and each having a pattern of electrodes formed thereon by the use of an electroconductive paste, to thereby provide a green sheet laminate, The electrodes on opposite surfaces or an entire surface layer of the green sheet laminate are subsequently printed with a paste comprising an inorganic component added with at least an organic binder containing a Zn composition. On each surface of the laminate printed with the paste of the Zn composition, a green sheet made of an inorganic composition incapable of being sintered at a temperature of crystallization of the glass ceramics is then laminated thereby providing a laminate plate which is subsequently fired. After the firing, both of the inorganic composition incapable of firing sintered and the Zn composition are removed from the opposite surfaces of the laminate. The paste of the Zn composition may contains a main component selected from the group consisting of Zn, ZnO, Zn(OH).sub.2, ZnAl.sub.2 O.sub.4, and ZnCO.sub.3.
摘要翻译:一种制造多层陶瓷基板的方法,其包括以下步骤:将所需数量的生坯片材层叠,所述生坯片材由至少含有有机粘合剂和溶剂的玻璃陶瓷制成,并且各自具有通过使用 导电糊,从而提供生片层压体。随后用包含添加至少含有Zn组合物的有机粘合剂的无机组分的糊料印刷相对表面上的电极或生片层压体的整个表面层。 在印有Zn组合物的糊料的层压板的每个表面上,将由玻璃陶瓷的结晶温度下不能烧结的无机组合物制成的生片层叠,从而提供随后烧制的层压板。 烧成后,从层叠体的相对面除去无法烧成的无机组合物和Zn组合物。 Zn组合物的糊剂可以含有选自Zn,ZnO,Zn(OH)2,ZnAl 2 O 4和ZnCO 3的主要成分。
摘要:
Disclosed is a method for mounting a semiconductor element, the method requiring no strict flatness for a substrate and being reliable in a semiconductor device produced by mounting a semiconductor element on a circuit substrate. In the multilayer circuit substrate comprising bump electrodes formed of a conductive paste, a conductive adhesive is applied to the top of bump electrodes and then leveled to obtain the end portions on the bump electrodes with a high coplanarity in height. The semiconductor element is mounted on this substrate using a combination of a conductive resin and a sealing resin or an anisotropic conductive sheet. Every top of the bump electrodes after the conductive adhesive is applied has a high coplanarity. The semiconductor element can be mounted with high reliability, on the substrate having such a poor flatness of the electrode face that mounting by a conventional method can not be applied.
摘要:
A method for planarizing a circuit board, has a step of fixing a circuit board having wiring layers on both sides to a board having a flat surface through an adhesive layer, wherein said circuit board is pressed from above by a flat member on fixing thereof.
摘要:
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.
摘要翻译:公开了一种CuO导体糊,其制造多层陶瓷体,其导体材料由铜制成,以及使用该导体膏制造多层陶瓷体的方法。 导体糊以CuO为主要成分,添加PbO系玻璃,Bi2O3系玻璃,CuO系玻璃,CuAl 2 O 4等中的至少一种作为添加剂。 多层陶瓷体通过包括从导体糊和电介质材料制造多层体的成形方法的方法制造,通过在空气中热处理由此获得的多层体的粘合剂去除工艺,将CuO还原为 在氢气和氮气的混合气体气氛中的铜,以及在氮气气氛中烧结多层体的烧结方法。