Multilayer ceramic capacitor processing and customization

What is a multilayer ceramic capacitor?

The multilayer ceramic capacitor (MLCC), which is one of them, is the most significant passive element capable of storing and releasing electrical charge. For resonant circuit applications, MLCCs provide excellent stability and low losses, as well as great volumetric efficiency for buffer, by-pass, and coupling applications .

How have multilayer ceramic capacitors changed in recent years?

In recent years, multilayer ceramic capacitors have become increasingly smaller and their capacitance has increased while their fabrication processes have been improved; for instance, the dielectric layers have become thinner and the precision with which the layers are stacked has been enhanced. Person in charge: Murata Manufacturing Co., Ltd. Y.G

Which metal is used in multilayer ceramic capacitors?

In recent years, nickel has been the principal metal used for the internal electrodes of multilayer ceramic capacitors, and in the case of such capacitors, the dielectric sheets are coated with a nickel paste. After the dielectric sheets have been coated with the internal electrode paste, the sheets are stacked in layers, one on top of the other.

What are the advantages of multilayer ceramic capacitors (MLCs)?

The use of MLCs follows closely that of integrated circuits (Figure 2); approximately three billion multilayer ceramic capacitors are used in the United States annually. Their advantages stem from their small size, frequency performance and cost advantages that result from the utilization of barium titanate.

How to reduce the cost of multilayer capacitors?

The use of tin-lead electrodes is another low-cost approach to reduce the electrode cost of multilayer capacitors. When utilizing this alloy, the capacitors are sintered with a fugitive electrode material, producing voids in the intended electrode regions. These voids are then impregnated with the low melting alloy to form the internal electrodes.

What skills do you need to make MLC capacitors?

The economical mass production of highquality, reliable and low-cost multilayer ceramic (MLC) capacitors requires a thorough understanding of the characteristics of the materials used, a knowledge of chemistry and electronics, as well as a high level of expertise in mechanical-equipment design and in-process technology.