Memory module assembly including heat sink attached to integrated circuits by adhesive
First Claim
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1. A memory module assembly comprising:
- a memory module printed circuit board assembly (PCBA) including;
a substrate having opposing first and second surfaces, a plurality of wiring traces formed on the first and second surfaces, at least some of the wiring traces being connected to metal contact pads formed along a connector edge of the substrate, anda plurality of first integrated circuit (IC) devices mounted on the first surface of the substrate such that an upper surface of each of the plurality of first IC devices is parallel to the first surface of the substrate;
a first heat-sink plate having a planar underside surface; and
a plurality of adhesive portions, each adhesive portion being sandwiched between the planar underside surface of the first heat-sink plate and the upper surface of an associated IC device of said plurality of first IC devices such that the first heat-sink plate is rigidly secured to the memory module by the plurality of adhesive portions,wherein each of the plurality of adhesive portions comprises one of a heat-activated adhesive material and a heat-cured adhesive material.
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Abstract
A memory module assembly includes two-plate heat sink attached to one or more of the integrated circuits (e.g., memory devices) of a memory module PCBA by adhesive. The adhesive is either heat-activated or heat-cured. The adhesive is applied to either the memory devices or the heat-sink plates, and then compressed between the heat-sink plates and memory module using a fixture. The fixture is then passed through an oven to activate/cure the adhesive.
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Citations
17 Claims
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1. A memory module assembly comprising:
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a memory module printed circuit board assembly (PCBA) including; a substrate having opposing first and second surfaces, a plurality of wiring traces formed on the first and second surfaces, at least some of the wiring traces being connected to metal contact pads formed along a connector edge of the substrate, and a plurality of first integrated circuit (IC) devices mounted on the first surface of the substrate such that an upper surface of each of the plurality of first IC devices is parallel to the first surface of the substrate; a first heat-sink plate having a planar underside surface; and a plurality of adhesive portions, each adhesive portion being sandwiched between the planar underside surface of the first heat-sink plate and the upper surface of an associated IC device of said plurality of first IC devices such that the first heat-sink plate is rigidly secured to the memory module by the plurality of adhesive portions, wherein each of the plurality of adhesive portions comprises one of a heat-activated adhesive material and a heat-cured adhesive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A memory module assembly comprising:
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a memory module printed circuit board assembly (PCBA) including; a substrate having opposing first and second surfaces, a plurality of wiring traces formed on the first and second surfaces, at least some of the wiring traces being connected to metal contact pads formed along a connector edge of the substrate, and a plurality of first integrated circuit (IC) devices mounted on the first surface of the substrate such that an upper surface of each of the plurality of first IC devices is parallel to the first surface of the substrate; a first heat-sink plate having a planar underside surface; and a plurality of adhesive portions, each adhesive portion being sandwiched between the planar underside surface of the first heat-sink plate and the upper surface of an associated IC device of said plurality of first IC devices such that the first heat-sink plate is rigidly secured to the memory module by the plurality of adhesive portions, wherein the first heat-sink plate is secured to the memory module solely by the plurality of adhesive portions. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification