Ceramic switch gasket according to its application function classification, generally can be divided into the high strength, high temperature resistant and composite structural ceramics and electrical electronic functional ceramics two kinds big. In the ceramic blank to add special formula of inorganic materials, after 1360 degrees or so high temperature sintering molding, so as to obtain steady and reliable antistatic performance, and become a new type of special ceramics, usually has one or more functions, such as: electricity, magnetism, light, heat, sound, chemical and biological functions; And the coupling function, such as piezoelectric, thermoelectric, lighting, sound and light, magneto optical functions.