Patent ID: 8314483

Claim:
A semiconductor die comprising: a semiconductor substrate; at least one transistor formed in the semiconductor substrate; an interconnect metal feature in an inter-metal dielectric (IMD) layer on a front-side surface of the semiconductor substrate the interconnect metal feature being coupled to the at least one transistor; a first dielectric layer on the IMD layer; a bonding pad formed in the first dielectric layer electrically coupled to the at least one transistor through the interconnect metal feature; and a first heat spreader formed in the first dielectric layer, the first heat spreader being insulated from the bonding pad and including an elongate structure having at least one major axis extending from a center region of the front-side surface of the semiconductor substrate toward an outer edge of the front-side surface of the semiconductor substrate, and the first heat spreader having a bottom surface, the bottom surface contacting only dielectric material.