Inner electrode slurry for sensitive components and preparation method thereof

Abstract

The invention relates to the technical field of electronic materials for electronic components, in particular to inner electrode slurry for high-reliability sensitive components and a preparation method thereof. The inner electrode slurry comprises the following components in percentage by weight: 50% to 70% of conductive powder, 1% to 5% of nano zirconia organic suspension, 0.5% to 4% of organicadditives and 26% to 45% of an organic carrier, wherein the sum of the weight percentages of the components is 100%; the conductive powder is at least one of silver palladium, silver platinum, silvergold and tungsten silver, and the weight percentage of silver in the conductive powder is 50% to 98%. The preparation method comprises the following steps of: mixing the conductive powder, the organiccarrier, the organic additives and the zirconia suspension in a vacuum stirrer, and grinding the mixture to less than 10.0mum by a three-high rolling mill to prepare the required inner electrode slurry. The inner electrode slurry printing electrode of the invention is smooth and flat and has good continuity; and the electrode is densely combined with a porcelain body through glue discharging andsintering, so that the problems of external cracking of the porcelain body and internal cracking of the electrode cannot be produced.

Description

technical field [0001] The invention relates to the technical field of electronic materials for electronic components, in particular to an internal electrode paste for multilayer chip sensitive components and a preparation method thereof. Background technique [0002] In recent years, the rapid development of smart phones, computers and other electronic information industries and the substantial growth in usage have brought a strong impetus for the adjustment and growth of the sensitive component resistor industry as functional components. At the same time, due to the similar production process of component products, most domestic component companies have entered the field of sensitive component resistance, which intensifies the competition within the industry. In the long run, the unit price of products has a downward trend. The cost of raw materials in the sensitive component industry accounts for as much as 40-50% of the total cost, while the raw materials of high-end pro...

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Problems solved by technology

Moreover, in the conventional palladium-silver or platinum-silver internal electrode paste, the conductive powder with silver accounting for more than 98% by weight is used as the main functional material, and silver electromigration or ion migration is prone to occur during production, resulting in a decrease in the resistance of sensitive components. , unqualified quality and a series of problems

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