| 摘要 |
PURPOSE:To improve the workability and the yield by providing a hard projection instead of a sprocket wheel of a lead frame of tape carrier type, thereby entirely eliminating a deformation and a damage due to mechanical stress. CONSTITUTION:Projections 4 of hard material such as metal are formed at both sides of an insulating film 1 such as tape-shaped polyimide. The tape is sequentially fed via a gear 5 having a width equal to the interval of the projections by the projections 4 to perform an automatic working continuously, and the damage of a leadframe can be eliminated. |
