| 摘要 |
PURPOSE:To simultaneously prevent a heat rack and a crack under a pad from occurring and to prevent the positions of wirings from being irregular by providing two faces of a flat part and a conical cave for receiving wirings on the lower end face of a bonding tool body. CONSTITUTION:A guide hole 1b for guiding a wiring 4 is obliquely formed on the rear end of a bonding tool body 1 toward its lower end face 1a. In this case, the front end of the lower end face 1a is formed in a flat part 1c, the rear end is formed in an arclike conical cave 1d for receiving the wiring 4, and chamfers 2, 3 are formed at the front and rear ends of the body 1 including them. Accordingly, thus, the flat part 1c of the body prevents a pad from cracking thereunder, and the cave 1d prevents its heel from cracking, thereby preventing the position of the wiring from being irregular. |
