| 摘要 |
A system and a method for preventing cracks in a passivation layer are provided. In one embodiment of the present invention, a contact pad has a first diameter, and an opening which penetrates through a passivation layer to a second diameter, wherein the first diameter is greater than the second diameter by a first distance of about 10 μm. In another embodiment of the present invention, an underbump metallization part is formed through the opening, wherein the underbump metallization part has a third diameter which is greater than the first diameter by a second distance of about 5 μm. In yet another embodiment of the prevent invention, the sum of the first distance and the second distance is greater than about 15 μm. |
