| 摘要 |
PURPOSE:To prevent the corrosion of wiring by a method wherein an opening part is formed on a final passivation film, and alluminum nickel alloy is cladded to this opening. CONSTITUTION:A pellet 3 is attached to a tab 1 interposing a blazing material such as gold-silicon eutectic crystals etc. A wiring 9 and a final passivation film 8 are provided on the pellet 3. The opening part 10 is formed by etching at the determined position of the film 8, and a part of the wiring 9 is exposed. Aluminum-nickel alloy is cladded at the opening part 10 at the condition the surrounding of said alloy is extended on the upper surface of the film 8. |
