| 摘要 |
PURPOSE:To remove the generation of short circuit and the protrusion of solder hillock in case of the connection of a lead wire, and to improve the capability of the mass production of the serial type thermal head by dividing a common electrode section into two or more and decreasing electrode width in the thermal head. CONSTITUTION:The common electrode 12 is divided into two, and made the same as the width of selective electrodes 11. Accordingly, even when the thermal head is connected to the lead wires, the short circuit of the selective electrodes 11 is not generated by the common electrode 12, and the quantity 15 of the common electrode 12 dipped in solder is made the same as the selective electrodes, thus resulting in no extrusion, etc. of solder, then easily forming the conductors of the electrode sections. |
