Patent ID: 8593810
Filing Date: 2013-11-26
Classification: H01L

Abstract:
1. A cooling device comprising: a substrate having a first surface which supports an electronic component and a second surface on an opposite side to the first surface; a container which has a container cavity forming a space under the second surface of the substrate; an evaporation section which is thermally connected to the electronic component supported on the substrate, which is arranged in the space so that at least a portion thereof is in contact with a liquid within the space, and which changes a phase of at least a portion of the liquid to gas on a basis of heat generated by the electronic component; and a condensation section which is arranged in the space so that at least a portion thereof is in contact with at least either one of the liquid and gas within the space, and which takes heat of the gas and changes a phase of at least a portion of the gas to liquid, wherein the space is configured such that a convection flow of the liquid is generated within the space by gasification of the liquid in the evaporation section and liquefaction of the gas in the condensation section, a surface of the evaporation section and a surface of the condensation section are surface-roughened, the evaporation section is arranged on the second surface, and the electronic component and the evaporation section are connected via a thermal via-hole formed in the substrate, and the condensation section is arranged on the second surface, and a heat sink and the condensation section are connected via a thermal via-hole formed in the substrate.