Non-contact data carrier and IC chip

摘要

The non-contact data carrier has a resin substrate, a metallic antenna coil on the resin substrate, and an IC chip connected to the antenna coil via a plurality of bumps. Each bump of the IC chip has a base on the side of the IC chip body of the data carrier and a projection held by the base via a shoulder. Each bump is connected to the antenna coil by piercing the projection into the antenna coil.