▎ 摘　　要

NOVELTY - Phase change composite comprises a structure where phase change material unit layers and thermal conductive layers are sequentially laminated. USE - The composite is useful in a heat spreader (claimed). ADVANTAGE - The composite exhibits: improved cooling performance by being formed in a layer-by-layer structure composed of a material having high thermal conductivity and a phase change material; and improved thermal conductivity in the horizontal direction (x-y direction), while also providing a sealing effect to prevent leakage of the phase change material impregnated in the unit cells. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for manufacturing the phase change composite, comprising preparing a metal mesh sheet in which many unit cells is formed, manufacturing phase change material unit layers by impregnating the unit cells with a phase change material, manufacturing a laminated structure by sequentially and alternately laminating the phase change material unit layers and thermal conductive layers so that each of the thermal conductive layers is laminated on an upper portion of each of the phase change material unit layers, and manufacturing the phase change composite by compressing the laminated structure.