THERMAL RECORDING HEAD

PURPOSE:To perform bonding operations with high accuracy, good reliability, and good productivity at low cost by connecting plural places to be electrically connected with each other by aluminum ball bonding. CONSTITUTION:An aluminium wire 36 is thrust through the central part of a capillary 37 and its lower end 36a is shaped into a ball form in advance. The capillary 37 is lowered downwards 38 to press it on a pad 34 while heated for connection and then moved on the wire 35. The wire 36 in crushed by the lower end edge 37a to clamp the wire, and when the wire 36 is moved to the direction of arrow 39, the wire end 36b is cut off the connected to the upside of the wire 35. Since the lower end 36a of the aluminum wire is shaped into a ball form, the moving direction of the capillary 37 in the following bonding position after connected to the upside of the pad 34 can be arbitrarily selected.