INDUCTOR FOR POST PASSIVATION INTERCONNECT

摘要

PURPOSE: An inductor for post passivation interconnect is provided to improve shielding performance by arranging a dummy pad near a part of a coil. CONSTITUTION: A PPI (Post Passivation Interconnect) layer (12) is arranged on a substrate (16). The PPI layer forms a coil and a dummy pad. The dummy pad is arranged near a part of the coil. The dummy pad shields a corresponding coil from electromagnetic interference. A UBM (Under Bump Metallization) layer (14) is arranged on the substrate. [Reference numerals] (16) Silicon; (18) Upper metal layer