Patent ID: 7019407

Claim:
A flip chip package structure, comprising: a chip having a first bump-positioning region; a substrate having a second bump-positioning region, at least a first hole and a plurality of second holes, wherein the first hole and the second holes are located within the second bump-positioning region, and the first hole has a depth greater than the second holes; at least a first bump arranged between the first bump-positioning region of the chip and the second bump-positioning region of the substrate, wherein the first bump and the substrate are bonded together via the first hole; a plurality of second bumps arranged between the first bump-positioning region of the chip and the second bump-positioning region of the substrate, wherein the second bumps and the substrate are bonded together via the second holes; and a filler material disposed between the chip and the substrate and encapsulating the first bumps and the second bumps; wherein the first bump has a volume larger than a volume of the second bump.