Heat sink
a heat sink and heat sink technology, applied in lighting and heating apparatus, semiconductor devices, semiconductor/solid-state device details, etc., can solve the problems of heat dissipation problem in the dual-in-line package electronic components, the contact between the heat sink and the electronic components is not perfect, and the ics will have even higher heat emission
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[0014]Referring to FIG. 1, the heat sink according to the first embodiment includes a first fin unit 20, a second fin unit 30 and a third fin unit 40 connected in series, wherein the second fin unit 30 is interconnected between the first fin unit 20 and the third fin unit 40.
[0015]Referring to FIG. 2 and FIG. 3, the first fin unit 20 includes a base 21, a fixing frame 22, a plurality of stacked heat dissipation fins 23, a sidewall 24 and a heat dissipation wall 25. The base 21 is plate-shaped, which has a top surface and an opposite bottom surface. The heat dissipation fins 23 are extended upwardly and perpendicularly from the top surface of the base 21. The heat dissipation fins 23 are paralleled and spaced to each other, and each of the heat dissipation fins 23 is arranged along a first direction of the base 21. The heat dissipation wall 25 is extended upwardly and perpendicularly from the top surface of the base 21, and is arranged along a second direction of the base 21 that is ...
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