Patent ID: 8609506

Claim:
A method of forming a semiconductor die, the method comprising: forming at least one active device in a semiconductor substrate; forming an inter-metal dielectric (IMD) layer on a first surface of the semiconductor substrate; forming a metal interconnect structure in the IMD layer; forming an insulating layer over the IMD layer; forming a first dielectric layer over the insulating layer; forming a first bonding pad in the first dielectric layer, the first bonding pad being electrically coupled to the at least one active device through the metal interconnect structure; and forming a first heat spreader on the insulating layer, the first heat spreader being insulated from the first bonding pad and comprising a structure extending from a center region of the first surface to an outer edge of the first surface, wherein the first heat spreader has a bottom surface coplanar with a bottom surface of the first bonding pad.