METHOD OF MANUFACTURING THERMAL HEAD

摘要

The size of the base of a thermal head is reduced forming a passivation film selectively, and hence the number of bases from one green sheet is increased, improving the productivity. Further improved are the positioning precision, the adhesion and the reliability of the passivation film. The portion requiring no passivation film of a wiring electrode is masked with inorganic paste, and the passivation film is formed all over the surface. The passivation film on the portion requiring no passivation film is removed together with the inorganic paste, and the passivation film is selectively formed on a heating body and a heating portion of the wiring electrode around the heating body.