Integrated circuit package provided with multiple heat-conducting paths for enhancing heat dissipation and wrapping around cap for improving integrity and reliability

A packaged integrated circuit (IC) comprising:

• an IC chip;
• an adapter board for supporting and securely attached said IC chip thereon, said adaptor board further includes a plurality of connecting vias penetrating therethrough for electrically and thermally connecting to said IC chip wherein each of said plurality of connecting vias connected to an electric output connection means disposed on a bottom surface of said adapter board;
• a chip cap for covering and protecting said IC chip therein said chip cap further forming a concave step near a lower edge of said cap for wrapping around the edge of said adapter board for increasing the contact areas between said cap and said board and securely attaching said cap to said board and said chip cap being composed of thermal conductive materials and said chip cap further including a heat sink means for dissipating heat generated from said IC chip;
• a main board including a plurality of thermal vias penetrating said main board and filled with thermal conductive materials, wherein said thermal vias are in thermal contact with said electric output connecting means for dissipating heat generated from said IC chip and wherein said thermal vias filled with said thermal conductive material are electrically insulated from said electric output connection means and provided only for dissipating heat without providing an active electrical function;
• and
• a heat spreading means disposed below and integrated securely with said main board for spreading and dissipating heat transmitted from said IC chip wherein said heat spreading means and said chip cap being formed as one-integrated heat dissipation body whereby heat generated by said IC chip is provided to simultaneously dissipate from top and bottom.

A packaged integrated circuit (IC) comprising:

• an IC chip;
• an adapter board for supporting and securely attached said IC chip thereon;
• a chip cap for covering and protecting said IC chip therein said chip cap further forming a concave step near a lower edge of said cap for wrapping around the edge of said adapter board for increasing the contact areas between said cap and said board and securely attaching said cap to said board;
• said chip cap being composed of thermal conductive materials and said chip cap further including a heat sink means for dissipating heat generated from said IC chip;
• said adapter board further including a plurality of connecting vias and a plurality of conductive metal balls forming a ball grid array (BGA) underneath said adapter board;
• said IC chip being in electrical and thermal contact with said BGA by filling said connection vias with conductive materials;
• and
• A printed circuit board (PCB) for supporting and receiving said adapter board thereon, said PCB including a plurality of thermal vias penetrating therethrough and filled with thermal conductive materials, wherein said thermal vias corresponding to and in contact with a plurality of said conductive metal balls of said BGA for dissipating heat generated from said IC and wherein said thermal vias filled with said thermal conductive material are electrically insulated from said metal balls and provided only for dissipating heat without providing an active electrical function.