Thermal print head, a method for the production of the thermal print head, of the printer, of the sinter, of the target

摘要

A process for producing a protective layer for a thermal head or a primer layer for a heat-generating resistor by sputtering using a target comprising a sinter of a silicon nitride.silicon dioxide.magnesium oxide powder. By regulating the particle diameter of the powder, the target is prevented from suffering partial peeling during the sputtering.