PHASE-CHANGE-TYPE HEAT SPREADER, FLOW-PATH STRUCTURE, ELECTRONIC APPARATUS,AND METHOD OF PRODUCING A PHASE-CHANGE-TYPE HEAT SPREADER

摘要

[Object] To provide a phase-change-type heat spreader, a flow-path structure, an electronic apparatus including the phase-change-type heat spreader, a flow-path structure used therein, and the like that are capable of improving a thermal efficiency by a phase change and lowering a thermal resistance. [Solving Means] Capillary boards (401 to 404) in which a plurality of openings (408) penetrating the capillary boards are formed on a wall surface constituting grooves (405) in a longitudinal direction of the grooves (405), are laminated while each being rotated 90 degrees to be deviated within an X-Y plane so that the grooves (405) of those layers extend in mutually-orthogonal directions, and the plurality of openings (408) function as a part of a vapor-phase flow path through which a vapor refrigerant evaporated by heat received by a heat-receiving plate circulates.