Thermal head and thermal printer equipped with the same

摘要

There are provided a thermal head capable of decreasing the possibility of occurrence of layer separation in a protective layer, and a thermal printer equipped with the same. A thermal head includes a substrate; an electrode disposed on the substrate; an electric resistor connected to the electrode, part of which serves as a heat-generating section; and a protective layer disposed on the electrode and on the heat-generating section. The protective layer includes a first layer containing silicon nitride or silicon oxide; and a second layer disposed on the first layer, containing tantalum oxide and silicon oxynitride.

主权项

1. A thermal head, comprising:
a substrate; an electrode disposed on the substrate; a heat-generating section connected to the electrode; and a protective layer disposed on the electrode and on the heat-generating section, the protective layer including a first layer containing silicon nitride or silicon oxide; a second layer disposed on the first layer, containing tantalum oxide and silicon oxynitride; and a close adherent layer interposed between the first layer and the second layer, containing silicon oxynitride.