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Boyee solution: A breakthrough in the uniformity of MLCC ceramic slurry
author: Boyee
November 04, 2024

In today's electronic equipment manufacturing field, chip multilayer ceramic capacitor (MLCC) as one of the most critical components, with its small size, large capacity, stable performance and other characteristics, widely used in various electronic products.

 

From consumer electronics to automotive electronics, from household appliances to communication equipment, MLCC is everywhere, and its importance is self-evident. However, the outstanding performance of MLCC is inseparable from a key factor - the uniformity and stability of the ceramic slurry.

 

Ceramic paste is the core material in MLCC production, and its quality and stability directly affect the final performance of MLCC.

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The uneven or unstable slurry will lead to problems in casting and printing process, which will affect the density and stability of the ceramic medium. The particle size and shape of ceramic powder are also key factors determining the performance of MLCC.

 

Excessive particle size will hinder the trend of thin lamination and miniaturization, and affect the sintering performance, dielectric constant, dielectric loss, temperature characteristics and capacity of the product.

 

In the process of preparing ceramic paste, one of the problems can not be ignored is the damage of ceramic powder and the introduction of impurities.

 

Although the traditional dispersion method can effectively disperse the ceramic powder in the slurry, it will inevitably cause wear to the powder in the process and produce impurities that are difficult to remove.

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These impurities not only affect the purity of the slurry, but also may change the physical and chemical properties of the powder, such as increasing the lattice imperfection or forming an amorphous surface layer, which will adversely affect the subsequent sintering and other processes.

 

To address these challenges, Boyee provides a complete set of MLCC ceramic paste uniformity and stability solutions to ensure MLCC performance and stability from the source.

 

The program covers package feeding, grinding systems, spray drying, kiln sintering, crushing and screening, and finished product packaging.

 

Adopt advanced automatic packaging and precise feeding technology to ensure the accurate ratio of raw materials.

 

Through the optimized grinding and dispersion technology, the ceramic powder can be effectively dispersed evenly in the slurry, effectively avoiding agglomeration and precipitation, while minimizing the damage of the powder.

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The slurry treated by the sander is spray-dried to form a uniform ceramic powder, and then goes through a precisely controlled kiln sintering process to ensure the density of the ceramic medium and good sintering properties.

 

The sintered ceramic body is finely crushed and sieved to screen out the particles that meet the particle size requirements, and finally the finished product packaging.

 

In terms of particle size control, Boyee not only pays attention to the monitoring of average particle size and large particle concentration, but also pays more attention to reducing the damage of ceramic powder during the dispersion process.

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By optimizing grinding media, adjusting grinding parameters and introducing advanced protection mechanisms.

 

Effectively reduce the degree of wear, reduce the generation of impurities, and maintain the original physical and chemical properties of the powder.

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