A kind of internal electrode slurry for sensitive components and its preparation method

A component and internal electrode technology, which is applied in the field of internal electrode paste for multi-layer chip sensitive components and its preparation, can solve problems such as unqualified quality, decreased resistance of sensitive components, silver electromigration or ion migration, etc. , to achieve the effect of smooth and flat printed electrodes, reducing the large difference in shrinkage and improving stability

Active Publication Date: 2021-05-07
肇庆市辰业电子有限公司
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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

Method used

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  • A kind of internal electrode slurry for sensitive components and its preparation method
  • A kind of internal electrode slurry for sensitive components and its preparation method
  • A kind of internal electrode slurry for sensitive components and its preparation method

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Embodiment Construction

[0008] specific implementation plan

[0009] The gist of the invention is to obtain the internal electrode slurry for sensitive components with excellent performance and qualified lightning strike energy test by adjusting the reasonable ratio of conductive powder, organic carrier, organic additive and zirconia suspension and selecting suitable particle size.

[0010] The present invention takes palladium-silver conductive powder as an example to introduce the best silver weight percent conductive powder used by different firing temperature sensitive components, and the properties of the products obtained are shown in Table 1 below.

[0011]

[0012] The formula design of the best embodiment of the present invention is as shown in Table 2. The selected one in the embodiment is the No. 2 palladium-silver conductive powder in Table 1, and silver accounts for 85% of the weight percentage of the conductive powder; Zirconia accounts for the weight percentage in the zirconia suspen...

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Abstract

The invention relates to the technical field of electronic materials for electronic components, in particular to an internal electrode paste for high-reliability sensitive components and a preparation method thereof. The weight ratio of this internal electrode slurry is: conductive powder 50%-70%, nano-zirconia organic suspension 1%-5%, organic additive 0.5%-4%, organic vehicle 26%-45%, each group The sum of the weight percentages of the parts is 100%; the conductive powder is at least one of silver-palladium, silver-platinum, silver-gold, and tungsten-silver, and the weight percentage of silver in the conductive powder is 50%-98%. The preparation method is as follows: after mixing conductive powder, organic carrier, organic additive and zirconia suspension in a vacuum mixer, grinding to a thickness below 10.0 μm with a three-roll mill to prepare the required internal electrode slurry. The internal electrode slurry printing electrode of the present invention is smooth and flat, and has good continuity; it is closely combined with the porcelain body through debinding and firing, and the problems of external cracking of the ceramic body and internal cracking of the electrode do not occur.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01B1/16H01B13/00
Inventor 张韶鸽杨玉华
Owner 肇庆市辰业电子有限公司
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