Multi-layer Ceramic Capacitor (MLCC) Filtration

MLCC(Multilayer Ceramic Capacitor) also known as chip capacitors, accounts for about one-third of the passive component market, with a global market size exceeding ten billion dollars. Thanks to its characteristics of high voltage resistance, compact size, long lifespan, and wide capacitance range, MLCC are widely used in consumer electronics, industrial applications, communications, automotive, and military sectors, earning the nickname 'rice of the electronics industry.

In the production process of MLCC, ceramic slurry is used in the preparation and casting coating stages, and metal slurry is used in the printing of (while metal slurry is used for)inner electrodes and coating of outer electrodes.

Multi-layer Ceramic Capacitor (MLCC) Process Flow Chart: 

The miniaturization of ceramic slurry particles offers benefits such as increased capacitance, reduced sintering temperature, and decreased losses. In contrast,the miniaturization of metal slurry particles enhances conductivity, reduces internal resistance, and supports high-frequency applications.While miniaturized and nanosized slurry particles offer numerous benefits, it is well-known that smaller particles tend to aggregate due to van der Waals forces, surface energy, and electrostatic forces. The aggregation of slurry particles can lead to issues such as voids in the ceramic dielectric, impurities in the electrodes, and device cracking. These adverse phenomena pose significant obstacles to improving the yield and advancing the high-end capabilities of MLCC

 How can the aggregation of MLCC(Multilayer Ceramic Capacitor)  slurry be addressed? There are generally two solutions. The first involves the use of dispersants, which work by adding components that disperse aggregated particles through electrostatic repulsion, steric hindrance, or a combination of both. However, due to the progressive effect, aggregated particles will eventually reach a dynamic equilibrium of aggregation and dispersion after being dispersed a few times. To address particle aggregation at this dynamic equilibrium, the second solution involves using filters to remove the aggregated particles.

MS has a large product library with different pore sizes, adaptor types and membrane combinations to meet the different needs of various manufacturers in the MLCC field, including meltblown cartridges with gradient pore sizes and high dirt-holding capacity, rolling cartridges with layered structure and high efficiency of retention, pleated cartridges with gradient pore sizes and long service life, as well as capsule cartridges that are easy to disassemble and install and have a high degree of precision.

For detailed technical solutions and product series information, please contact your MS sales engineer.