摘要:
A method for producing a multilayer ceramic circuit board including the steps of forming a multilayer structure consisting of patterns of copper-based paste and glass-ceramic layers, the glass-ceramic layers consisting of a mixture of 10 percent to 75 percent by weight of .alpha.-alumina, 20 percent to 60 percent by weight of crystallizable or noncrystallizable glass which can be sintered at a temperature lower than the melting point of copper, and 5 percent to 70 percent by weight of quartz glass, based on the total weight of the glass-ceramic, blended with a binder containing a thermally depolymerizable resin; prefiring the multilayer structure in an inert atmosphere containing water vapor, the partial pressure of which is 0.005 to 0.3 atmosphere, at a temperature where the thermally depolymerizable resin is eliminated; and firing the multilayer structure in an inert atmosphere containing no water vapor at a temperature below the melting point of copper so as to sinter the glass-ceramic.
摘要:
A method for producing a multilayer ceramic circuit board including the steps of forming a multilayer structure consisting of patterns of copper-based paste and glass-ceramic layers, the glass-ceramic layers consisting of a mixture of 10 percent to 75 percent by weight of .alpha.-alumina, 20 percent to 60 percent by weight of crystallizable or noncrystallizable glass which can be sintered at a temperature lower than the melting point of copper, and 5 percent to 70 percent by weight of quartz glass, based on the total weight of the glass-ceramic, blended with a binder containing a thermally depolymerizable resin; prefiring the multilayer structure in an inert atmosphere containing water vapor, the partial pressure of which is 0.005 to 0.3 atmosphere, at a temperature where the thermally depolymerizable resin is eliminated; and firing the multilayer structure in an inert atmosphere containing no water vapor at a temperature below the melting point of copper so as to sinter the glass-ceramic.
摘要:
A process for producing a multilayer ceramic circuit board with copper including the steps of:forming green sheets by doctoring a slurry which includes 100 parts by weight of glass ceramic particles, 5 to 20 parts by weight of a thermally depolymerizable resin binder, 2 to 10 parts by weight of a plasticizer, and up to 2 parts by weight of a fatty acid ethylene oxide adduct type, deflorculant. The glass ceramic includes 20 to 70% by weight of alumina, and 30 to 80% by weight of SiO.sub.2 -B.sub.2 O.sub.3 glass. The process further includes the steps of forming via holes through the green sheets, screen-printing a copper paste on the green sheets, and laminating the green sheets, thereby forming a multilayer structure and firing the multilayer structure in a non-oxidizable atmosphere.
摘要翻译:一种用于制造具有铜的多层陶瓷电路板的方法,包括以下步骤:通过将包含100重量份的玻璃陶瓷颗粒,5至20重量份的热解聚树脂粘合剂,2至10重量份的浆料 重量份的增塑剂和至多2重量份的脂肪酸环氧乙烷加合物类型的脱氯剂。 玻璃陶瓷包含20至70重量%的氧化铝和30至80重量%的SiO 2 -B 2 O 3玻璃。 该方法还包括以下步骤:在生片上形成通孔,在生片上丝网印刷铜膏,并层压生片,由此形成多层结构,并在不可氧化的气氛中烧结多层结构。
摘要:
A superconducting circuit board is provided comprising a sintered alumina board containing more than 99% by weight of alumina and an interconnection pattern of an superconducting ceramics formed on the alumina board. Adhesion of the interconnection pattern to the alumina board is improved by an addition of Ti or Si coupling agent to a paste for forming the interconnection pattern. The use of copper powder in place of copper oxide powder as an ingredient forming a superconducting ceramics in the paste is advantageous for printing and obtaining a uniform superconducting ceramic pattern.
摘要:
A superconducting circuit board is provided comprising a sintered alumina board containing more than 99% by weight of alumina and an interconnection pattern of an superconducting ceramics formed on the alumina board. Adhesion of the interconnection pattern to the alumina board is improved by an addition of Ti or Si coupling agent to a paste for forming the interconnection pattern. The use of copper powder in place of copper oxide powder as an ingredient forming a superconducting ceramics in the paste is advantageous for printing and obtaining a uniform superconducting ceramic pattern.
摘要:
A multi-layer superconducting circuit substrate, including insulating layers, and interconnection patterns of a superconductive ceramic material located between the insulating layers, the patterns of the superconductive ceramic material being connected via through-holes of the superconductive ceramic material, is provided. The patterns of the superconductive ceramic material are preferably encapsulated with a metal of gold, silver, platinum or an alloy thereof.
摘要:
Methods for preparing a green sheet and a glass ceramic substrate are herein disclosed.The object of these methods is to make green sheets and glass ceramic substrates practically acceptable, the green sheets and the glass ceramic substrates having a low dielectric constant and low scattering in properties, and the method comprises the steps of preparing a mixture of hollow silica microspheres, borosilicate glass powder and ceramic powder as a principal ingredient, adding a plasticizer, a binder and a solvent to the mixture, kneading the mixture and forming it into a green sheet, wherein the shell-thickness of the hollow silica microspheres is controlled so that the specific gravity of the hollow silica microspheres is approximately equal to that of the solvent and wherein an inorganic substance containing aluminum as a constituent element such as alumina, mullite or aluminum nitride is used as the ceramic powder for forming the green sheet; or the method further comprises the step of calcining the resulting green sheet.
摘要:
A method of manufacturing a electrode foil composed of a valve metal layer of a first valve metal and a metal foil of a second valve metal supporting the valve metal layer, the method includes coating fine particles of the first valve metal with a resin to form composite fine particles, forming the composite fine particles into an aerosol, jetting the aerosol to the metal foil in an atmosphere under a reduced pressure, depositing the composite fine particles onto the metal foil to form a aerosol deposition layer, and removing selectively the resin from the aerosol deposition layer to form the valve metal layer.
摘要:
An interconnection substrate including therein one or more resin layers, each of the resin layers including therein a via-hole penetrating from a top surface to a bottom surface of the resin layer. A via-plug of metal particles is formed in the via-hole. Each of the metal particles has a flattened shape generally parallel to a plane of the resin layer.
摘要:
An electrode foil includes a structure a structure in which metal particles and ceramic particles, which primarily include at least one of valve metal particles having a dielectric constant and ceramic particles, are deposited on a surface of a metal foil.