| 摘要 |
PURPOSE:To remove an unnecessary molded film with high efficiency, by applying water jet to the unnecessary molded film on a lead frame. CONSTITUTION:After the molded film on a resin-molded seminconductor device lead frame is electrolyzed to swell, the lead frame 1 is carried from the left to the right by means of a roller driving apparatus. On doing this, the pressurized water led from water-pressurizing tanks 11, 11' is formed into high-speed water jet streams through nozzles 12, 12' and jetted to the lead frame 1, thereby to remove an unnecessary molded film. |
