| 摘要 |
A combination heat sink formed of a stack of heat spreader sheet members is disclosed. Each heat spreader sheet member has a flat base panel two side flanges respectively perpendicularly extending along two opposite lateral sides of the flat base panel in a parallel manner, a plurality of narrow elongated notches respectively symmetrically formed on the two opposite lateral sides of the flat base panel, and a plurality of protruding positioning portions respectively formed of the side flanges in such a manner that when two heat spreader sheet members are attached together the protruding positioning portions of one heat spreader sheet member are inserted through the narrow elongated notches of the other heat spreader sheet member bent sideways and secured to the side flanges of the other heat spreader sheet member, and therefore the two stacked heat spreader sheet members are firmed secured together.
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