MCH is acronym for Metal Ceramic Heater, which is made up of high
melting point metal heating resistance slurry such as tungsten or
molybdenum-manganese printed onto 96% alumina casting ceramic green body
according to the design requirements of the heating circuit. After being
laminated by heat pressing, ceramic heaters are then formed by co-firing
ceramic substrate and metal circuit in hydrogen reduction atmosphere protection
furnace at 1650° C.