Heat dissipation in integrated circuits
View Patent ↗The present invention provides an integrated circuit and method of manufacture therefore. The integrated circuit, in one embodiment, includes heat conducting elements located proximate a plurality of heat generating components located over a substrate. The integrated circuit may further include a heat radiating element comprising one or more fins in thermal communication and physical contact with the heat conducting elements, the heat radiating element configured to dissipate heat generated by the heat generating components away from the integrated circuit.
1. An integrated circuit, comprising:
heat conducting elements located proximate a plurality of heat generating components located over a substrate;
a heat radiating element comprising one or more fins in thermal communication and physical contact with the heat conducting elements, the heat radiating element configured to dissipate heat generated by the heat generating components away from the integrated circuit; and
a passivation layer located above the heat radiating element, the passivation layer exposing at least a portion of an upper surface of the heat radiating element.
2. The integrated circuit as recited in claim 1 wherein the heat radiating element includes a single fin configured as a serpent or a comb.
3. The integrated circuit as recited in claim 1 wherein the heat radiating element includes multiple fins configured as interdigitated combs.
4. The integrated circuit as recited in claim 1 wherein active bond pad is in thermal communication and physical contact with the heat conducting elements, and further wherein the heat radiating element physically contacts the active bond pad.
5. The integrated circuit as recited in claim 1 wherein the heat conducting elements are electrically active interconnects or traces.
6. The integrated circuit as recited in claim 1 wherein the heat conducting elements are electrically inactive interconnects or traces.
7. The integrated circuit as recited in claim 1 wherein the heat radiating element comprises a material selected from the group consisting of:
copper;
aluminum;
titantium;
tantalum; and
tungsten.
8. The integrated circuit as recited in claim 1 wherein the plurality of heat generating components comprise one or more devices selected from the group consisting of:
transistors;
capacitors;
resistors;
diodes; or
any combination thereof.
9. The integrated circuit as recited in claim 1 further including a packaging layer at least partially encapsulating the integrated circuit, wherein the heat radiating element is located on, over or in an outside surface of the packaging layer, and further wherein a thermally conductive coupler extending through the packaging layer causes the heat radiating element to be in thermal communication and physical contact with the heat conducting elements.
10. A method for manufacturing an integrated circuit, comprising:
forming heat conducting elements proximate a plurality of heat generating components located over a substrate;
forming a heat radiating element comprising one or more fins in thermal communication and physical contact with the heat conducting elements, the heat radiating element configured to dissipate heat generated by the heat generating components away from the integrated circuit; and
creating a passivation layer above the heat radiating element, the passivation layer exposing at least a portion of an upper surface of the heat radiating element.
11. The method as recited in claim 10 wherein the heat radiating element includes a single fin configured as a serpent or a comb.
12. The method as recited in claim 10 wherein the heat radiating element includes multiple fins configured as interdigitated combs.
13. The method as recited in claim 10 wherein and active bond pad is in thermal communication and physical contact with the heat conducting elements, and further wherein the heat radiating element physically contacts the active bond pad.
14. The method as recited in claim 10 wherein the heat conducting elements are electrically active interconnects or traces.
15. The method as recited in claim 10 wherein the heat conducting elements are electrically inactive interconnects or traces.
16. The method as recited in claim 10 wherein the heat radiating element comprises a material selected from the group consisting of:
copper;
aluminum;
titantium;
tantalum; and
tungsten.
17. The method as recited in claim 10 wherein the plurality of heat generating components comprise one or more devices selected from the group consisting of:
transistors;
capacitors;
resistors;
diodes; or
any combination thereof.
18. The method as recited in claim 10 further including at least partially encapsulating the integrated circuit with a packaging layer, wherein the heat radiating element is located on over or in an outside surface of the packaging layer, and further wherein a thermally conductive coupler extending through the packaging layer causes the heat radiating element to be in thermal communication and physical contact with the heat conducting elements.