Method for manufacturing an ultrathin heat dissipation structure

A method for manufacturing the ultrathin heat dissipation structure, the method comprising:

• providing a copper clad sheet, the copper clad sheet comprising an insulation layer and a copper clad layer attached on the insulation layer;
• stamping the copper clad sheet to form a plurality of containing grooves and a plurality of ribs around each of the plurality of containing grooves, and wherein the cooper clad layer provides as an inner surface of the containing groove and the insulation layer is then an outer surface of the containing groove, wherein the copper clad layer has a same surface area as a surface area of the insulation layer, and a cross-section shape of the inner surface of each containing groove is same as a cross-section shape of the outer surface of each containing groove;
• providing bond blocks on each of the plurality of ribs;
• infilling phase-change material into the containing grooves of the copper clad sheet;
• providing a cover, pressing the cover to the bond blocks, wherein the cover is fixed with the copper clad sheet by the bond blocks, the cover seals the containing grooves, and the phase-change material is received in the containing grooves;
• and
• solidifying the bond blocks.