Abstract: A method for manufacturing a heat-dissipating structure with high heat-dissipating efficiency, includes the following steps: providing a heat-dissipating casing having a hollow heat-dissipating body that has at least two ends; closing one end of the hollow heat-dissipating body; pouring work liquid from other end of the hollow heat-dissipating body into an inner portion of the hollow heat-dissipating body; cooling the work liquid from the liquid state to the solid state by an external cooling medium; extracting air from the hollow heat-dissipating body; and then closing the other end of the hollow heat-dissipating body to form an evacuated hollow heat-dissipating body.

Abstract: A plane-type heat-dissipating structure with high heat-dissipating effect includes a first heat-dissipating unit and a second heat-dissipating unit. The first heat-dissipating unit has an evacuated hollow heat-dissipating body, a plurality of supports integratedly formed in the hollow heat-dissipating body in order to divide an inner space of the hollow heat-dissipating body into a plurality of receiving spaces, and a plurality of microstructures integratedly formed on an inner surface of the hollow heat-dissipating body. Work liquid is filled into the receiving spaces. The second heat-dissipating unit is integratedly formed on an outer surface of the first heat-dissipating unit.