| 摘要 |
<p>A thermal head (10) includes: a substrate main body (13) including a flat plate-shaped support substrate (12) and a flat plate-shaped upper substrate (14) which are bonded to each other in a stacked state; a heating resistor (15) formed on a surface of the upper substrate (14); and a pair of electrodes (17A, 17B) connected to both ends of the heating resistor (15), respectively, for supplying power to the heating resistor (15), in which the substrate main body (13) includes a cavity portion (23) in a region opposed to the heating resistor (15) at a bonding portion between the support substrate (12) and the upper substrate (14), and at least one of the electrodes (17A, 17B) includes a thin portion (18) in a region opposed to the cavity portion (23), the thin portion being thinner than other regions of the electrodes (17A, 17B).</p> |
