Integrated chip package having intermediate substrate
View Patent ↗The present integrated chip package provides a low cost package that is suitable for high density semiconductors that have high power dissipation. The integrated chip package includes at least one semiconductor chip having a first surface and a second surface. The first surface of the semiconductor chip is electrically coupled to an intermediate substrate via conductive bumps. The intermediate substrate is also electrically coupled to a package substrate via a plurality of bonding wires. The second surface of the semiconductor chip is thermally coupled to a heat sink to increase the power dissipation capacity of the integrated chip package.
1. An integrated chip package, comprising:
at least one semiconductor chip having a first surface and a second surface;
an intermediate substrate electrically coupled via conductive bumps to the first surface of the at least one semiconductor chip;
a planar package substrate having a first surface electrically coupled to the intermediate substrate via a plurality of bonding wires, the intermediate substrate arranged above and spaced apart from the planar package substrate; and
a heat sink having side portions extending towards the planar package surface, the heat sink thermally coupled to the second surface of the semiconductor chip so that heat generated from the at least one semiconductor chip flows towards the heat sink,
wherein the heat sink is substantially thermally isolated from the planar package substrate.
2. The integrated chip package of claim 1 , wherein the intermediate substrate is formed from a material selected from the group consisting of silicon, polysilicon, and glass.
3. The integrated chip package of claim 1 , wherein the conductive bumps are formed from a material selected from the group consisting of Pb/Sn solder, Au, Ag, alloys of Au and Ag, and metallic coated polymeric studs.
4. The integrated chip package of claim 1 , wherein the intermediate substrate includes a circuit plane selected from the group consisting of power planes, ground planes, and interconnect planes.
5. The integrated chip package of claim 1 , wherein the planar package substrate includes conductive pads on a second surface to electrically connect the integrated chip package to a circuit board via conductive bumps.
6. The integrated chip package of claim 1 , further comprising a support material arranged between the planar package substrate and the intermediate substrate.
7. An integrated chip package, comprising:
at least one semiconductor chip configured for flip chip mounting, having a first surface and a second surface;
a planar package substrate having a first surface and a second surface, the planar package substrate second surface to electrically couple the integrated chip package to a circuit board via conductive bumps;
a flip chip conversion means arranged above and spaced apart from the planar package substrate first surface and electrically coupled between the at least one semiconductor chip first surface and the planar package substrate first surface;
a means for sinking heat from the second surface of the semiconductor chip so that heat generated from the semiconductor chip flows towards the means for sinking heat, the means for sinking heat having side portions extending towards the planar package substrate; and
means for thermally isolating the heat sinking means from the planar package substrate.
8. The integrated chip package of claim 7 , further including forming the flip chip conversion means from a material selected from the group consisting of silicon, polysilicon, and glass.
9. The integrated chip package of claim 7 , wherein the flip chip conversion means includes a means for electrically interconnecting.
10. The integrated chip package of claim 7 , wherein the second surface of the planar package substrate includes conductive pads for electrically interfacing to the conductive bumps.
11. An integrated chip package, comprising:
at least one semiconductor chip having a first surface and a second surface;
an intermediate substrate electrically coupled via conductive bumps to the first surface of the at least one semiconductor chip;
a planar package substrate having a first surface electrically coupled to the intermediate substrate via a plurality of bonding wires, the intermediate substrate arranged above the planar package substrate;
a heat sink having side portions extending towards the planar package surface, the heat sink thermally coupled to the second surface of the semiconductor chip so that heat generated from the at least one semiconductor chip flows towards the heat sink, and
wherein the heat sink is substantially thermally isolated from the planar package substrate; and
a support material arranged between the planar package substrate and the intermediate substrate.
12. An integrated chip package, comprising:
at least one semiconductor chip configured for flip chip mounting, having a first surface and a second surface;
a planar package substrate having a first surface and a second surface, the planar package substrate second surface to electrically couple the integrated chip package to a circuit board via conductive bumps;
a flip chip conversion means arranged above the planar package substrate first surface and electrically coupled between the at least one semiconductor chip first surface and the planar package substrate first surface;
a means for sinking heat from the second surface of the semiconductor chip so that heat generated from the semiconductor chip flows towards the means for sinking heat, the means for sinking heat having side portions extending towards the planar package substrate;
means for thermally isolating the heat sinking means from the planar package substrate; and
a support material arranged between the planar package substrate and the flip chip conversion means.