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US 8,716,830 B2Granted
Thermally efficient integrated circuit package
AssigneeTexas Instruments Incorporated
InventorsAnindya Poddar, Luu T. Nguyen
Life of this patent
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Abstract
In one aspect of the present invention, an integrated circuit package will be described. The integrated circuit package includes at least two integrated circuits that are attached with a substrate. The integrated circuits and the substrates are at least partially encapsulated in a molding material. There is a groove or air gap that extends partially through the molding material and that is arranged to form a thermal barrier between the integrated circuits.
Claims11
An integrated circuit package comprising:
- a plurality of integrated circuits including a first integrated circuit and a second integrated circuit;
- a substrate that is electrically and physically connected to the first and second integrated circuits;
- wherein the substrate includes a plurality of die attach pads including a first die attach pad that supports the first integrated circuit and a second die attach pad that supports the second integrated circuit, wherein the first and second die attach pads are separated from one another;
- a metal clip that is coupled with a top surface of the second integrated circuit and is also coupled to the substrate;
- wherein a bottom surface of the second integrated circuit is attached to the second die attach pad whereby the clip and the die attach pad cooperate to provide two paths for transferring heat from the second integrated circuit away from the package;
- wherein a portion of the metal clip is exposed on the exterior of the package;
- wherein a back surface of one of the integrated circuits is exposed on an exterior of the package;
- a plurality of passive devices wherein:
- the plurality of integrated circuits and the plurality of passive devices are electrical devices;
- some of the electrical devices are more temperature sensitive than others of the electrical devices;
- and
- a groove that separates the more temperature sensitive devices from the less temperature sensitive devices;
- a molding material that at least partially encapsulates the first integrated circuit, the second integrated circuit and the substrate;
- and
- the groove that extends partially through the molding material between the first integrated circuit and the second integrated circuit to help provide a thermal barrier between the first integrated circuit and the second integrated circuit.
12 more elements
Dependencies are inferred from the claim text.