Electronic ceramics refer to various ceramics used in electronic technology, that is, ceramic materials used in the electronics industry to manufacture electronic components and devices, and are generally divided into structural ceramics and functional ceramics (mainly electrical functions) . Among them, structural ceramics refer to ceramic materials such as substrates, casings, fixtures and insulating parts in the manufacture of electronic components, devices, components and circuits, also known as device porcelain, which can be roughly divided into: electric vacuum porcelain, resistance matrix porcelain and insulation Parts, while functional ceramics are ceramic materials used to manufacture capacitors, resistors, inductors, transducers, filters, sensors, etc., which play one or more roles in the circuit, and can be divided into capacitor porcelain and ferroelectric porcelain , Piezoelectric porcelain, semiconductor porcelain and magnetic porcelain, etc.

Alumina electronic ceramics have excellent electrical insulation properties, and are used as electronic ceramics for structural parts, substrates, and housings in electronic equipment and devices. Porcelain parts of insulation devices include various insulators, coil bobbins, tube holders, band switches, capacitor support brackets, integrated circuit substrates and packaging shells, etc. Alumina electronic ceramics have high hardness, corrosion resistance, good high temperature resistance, and a wide range of applications. Electronic ceramics have the advantages of high hardness, wear resistance, and high fracture toughness, and are widely used in 3C electronics, machinery, optical communications, chemicals, medical care, aviation, automobiles and other fields. Alumina ceramic is a ceramic material mainly composed of alumina, which is used in thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics are a kind of ceramics with a wide range of uses. Because of its superior performance, it has been more and more widely used in modern society, meeting the needs of daily use and special performance.