| 摘要 |
PURPOSE:To prevent the gap made between the peripheral part of a ball and a bonding pad from corroding by a method wherein only peripheral part of ball connected to a bonding pad of pellet is coated with coating material. CONSTITUTION:The peripheral part 8 of ball 6a bonded on a bonding pad 5 is coated with coating material 8 comprising e.g. silicon gel before the part 8 is sealed with epoxy resin. Through these procedures, the gap made between the peripheral part of ball 6a and the pad 5 may be prevented from corroding. |
