Semiconductor package device with a heat dissipation structure and the packaging method thereof
The present invention provide a heat dissipation structure on the active surface of the die to increase the performance of the heat conduction in longitude direction of the semiconductor package device, so that the heat dissipating performance can be improved when the semiconductor package device is associated with the exterior heat dissipation mechanism.
1. A method for a packaging semiconductor package device with a heat dissipation structure, comprising:
providing a wafer having a top surface and a back surface, and having a plurality of dices disposed thereon;
cutting said wafer to obtain said plurality of dices, each said plurality of dices having an active surface and a back surface, and a plurality of pads is disposed on said active surface of each said plurality of dices;
providing a carrier substrate having a top surface and a back surface, a plurality of first connecting points being disposed on said top surface and a plurality of second connecting points corresponding to said plurality of first connecting points being disposed on said back surface, and a plurality of chip-placement areas being disposed on said top surface;
attaching each said plurality of dices on each said plurality of chip-placement areas, said back surface of each said plurality of dices being disposed on each said plurality of chip-placement areas on said top surface of said carrier surface;
performing a wire bonding process to form a plurality of conductive wires to electrically connect said plurality of pads on said active surface of each said plurality of dices with said plurality of first connecting points on said top surface of said carrier substrate;
forming the heat dissipation structure on said active surface of each said plurality of dices and being electrically isolated from said plurality of pads;
performing an encapsulation process to form a polymer material to encapsulate said plurality of dices, said heat dissipation structure, said plurality of conductive wires and said top surface of said carrier substrate to form a package body;
forming a plurality of connecting components on said back surface of said carrier substrate and being electrically connected said plurality of second connecting points; and
cutting said package body to form a plurality of semiconductor package device.
2. The packaging method according to claim 1 , wherein said carrier substrate comprises a printed circuit board.
3. The packaging method according to claim 1 , wherein said heat dissipation structure is directly connected to said plurality of dices.
4. The packaging method according to claim 1 , further comprising a conductive glue disposed between said top surface of said carrier substrate and said back surface of each of said plurality of dices.
5. The packaging method according to claim 1 , wherein said heat dissipation structure comprises a metal.
6. The packaging method according to claim 1 , wherein the material of said heat dissipation structure is selected from the group consisting of copper, copper-contained metal compound, aluminum, and aluminum-contained metal compound.
7. The packaging method according to claim 1 , wherein the shape of said heat dissipation structure is selected from the group consisting of cylinder, non-uniform cylinder, rectangle cylinder, and non-uniform rectangle cylinder.
8. The packaging method according to claim 1 , wherein a silver paste is further disposed between said heat dissipation structure and said active surface of each said plurality of dices.
9. The packaging method according to claim 1 , wherein a non-conductive glue is further disposed between said heat dissipation structure and said active surface of each said plurality of dices.
10. The packaging method according to claim 1 , wherein said heat dissipation structure protrudes from said package body.