Kyocera Corporation

Yoshihiko Fujiwara

Hiroshi Masutani

Kouji Ochi

Youichi Moto

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.

Thermal head and thermal printer equipped with the same

A thermal head and a thermal printer are disclosed. The thermal head includes a substrate, an electrode on the substrate, a heating portion connected to the electrode, and a protective layer on the heating portion. The protective layer includes a first layer and a second layer. The first layer is disposed on the heating portion and includes silicon carbonitride. The second layer is disposed on the first layer and includes silicon oxide.

Thermal head and thermal printer provided with same

A thermal head in which power durability of the heat-generating element is improved and a thermal printer including the same. A thermal head according to an embodiment includes a substrate, electrodes disposed in a pair on the substrate, a heat-generating element disposed between the electrodes and connecting the electrodes to one another, an electric resistor layer disposed below the electrodes, and a protection film disposed on the electrodes and the heat-generating element. The electrodes include a first electrode and a second electrode electrically connected to the heat-generating element. The heat-generating element and the electric resistor layer each contain at least one metal selected from Al, Cu, Ag, Mo, Y, Nd, Cr, Ni and W, in a region on a protection film side thereof. A content of the metal contained in the heat-generating element is higher than a content of the metal contained in the electric resistor layer disposed below the first electrode.

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Kirishima, Japan

Yoshihiko Fujiwara