Ceramic capacitor is a general concept for capacitors with ceramic material as the medium. Compared with other capacitors, general ceramic capacitors have the advantages of higher operating temperature, large specific capacity, good moisture resistance, less dielectric loss, and the capacitance temperature coefficient can be selected in a wide range. Ceramic capacitors are widely used in electronic circuits as ceramic materials with excellent electrical, mechanical, thermal and other properties, and can be used as capacitor dielectric, circuit board and packaging materials.