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.
| Process Technology | Membrane Solutions Recommended Filter Cartridge Series |
| Multi-layer Ceramic Capacitor (MLCC) Filtration | PPD Series - PP Pleated Filter Cartridge with High Dirt Holding Capacity |
| FG/FL Series - PTFE Pleated Filter Cartridge with High Efficiency | |
| CMPro-L Series Polypropyene Membrane Winded Depth Filter | |
| Cap-SL Series Slurry Capsule Filter | |
| PoliCap Point-of-use(POU) Compact CMP Capsules | |
For detailed technical solutions and product series information, please contact your MS sales engineer.
Products About Multi-layer Ceramic Capacitor (MLCC) Filtration
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Cap-SL Capsule Filter
The unique structural design of the Cap-SL series filter cartridges eliminates the need for cleaning the filter after cartridge replacement, reducing both filter handling costs and cleaning expenses. It prevents direct contact with the slurry, making it suitable for filtering toxic and harmful slurries. The capsule structure reduces the gap between the filter shell and the inner core, minimizing slurry residue. It can be paired with different sizes of inner cores, with lengths of 5", 10", and 20" available to meet various flow rate requirements. The C2SL series is a specially designed capsule filter for ultra-high flow rates, suitable for high-speed coating production lines. It features a built-in 7-core filter with a large-capacity design, greatly extending the service life of a single filter, reducing replacement frequency. It also includes a bottom liquid discharge design for slurry recovery and reuse. The capsule shell design, combined with a high dirt-holding capacity depth-wound inner core structure, is widely used in the slurry coating processes for both positive and negative electrodes in lithium batteries and MLCC.
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PolyPure-D Series（PPD Series）PP Pleated Filter Cartridge with High Dirt Holding Capacity
The PPD series utilizes gradient pore fiber depth filtration technology, combined with filter membranes of varying thicknesses, greatly enhancing the dirt-holding capacity of the filter. This design prevents clogging of the filter's surface, with the upstream pore size being coarser and the downstream finer, allowing for graded retention of impurity particles. The service life is more than twice that of ordinary filters, reducing replacement frequency and lowering usage costs. The high dirt-holding capacity and deep pleated design make it widely used in high-load applications such as semiconductor CMP processes, cleaning points in panel new energy, and MLCC slurry filtration.
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CMPro-L Series Polypropyene Membrane Winded Depth Filter
The CMPL series filter cartridges are made from multiple gradient polypropylene filter membranes that are continuously wound. Due to their multi-layer structure, they offer higher efficiency than standard melt-blown and pleated filters. The carefully designed gradient pore configuration forms a deep dirt-holding structure, providing excellent flow rates and extended service life. With a maximum precision of 0.05μm, they effectively remove both gels and particles. The multi-gradient, high dirt-holding capacity, and high-efficiency deep structure are specifically designed for slurry filtration in semiconductor CMP processes, lithium batteries, and MLCC applications.
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FG/FL Series - PTFE Pleated Filter Cartridge with High Efficiency
The FG/FL series PTFE pleated filter cartridges are made with high-strength polytetrafluoroethylene membranes and polypropylene skeleton, providing excellent filtration performance and long-term stability of filtration efficiency during use. The FG series, configured with hydrophobic membranes, can be directly used for filtering various low surface tension chemicals, while the FL series, configured with hydrophilic membranes, can filter various aqueous reagents without the need for pre-wetting. With enhanced chemical resistance, they are commonly used for the filtration of etching solutions, stripping solutions, and other active chemical liquids such as acids and alkalis in the panel new energy sector.