| 摘要 |
PROBLEM TO BE SOLVED: To provide a thermal head in which a bonding wire forms normal looping, and a wiring failure by direct contact between the bonding wire and an electrode pattern can be prevented. SOLUTION: There are set a plurality of heating resistors arranged on a glaze layer 2, a plurality of electrode patterns 5 each arranged on the glaze layer 2 and having one end connected to the heating resistor, a driver IC arranged on the glaze layer 2 for controlling driving the heating resistors, a plurality of electrode pads 7 connected to the other ends of the electrode patterns 5 respectively and arranged in a plurality of arrays to the driver IC, a photosensitive insulating film 8 exposing the electrode pads 7 and having a thickness of 0.5-5μm by which the electrode patterns 5 set in the periphery of the electrode pads 7 are covered, and the bonding wire 9 for connecting the electrode pads 7 and the driver IC with each other.
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