Abstract: An electronic device includes a heat dissipation structure. The heat dissipation structure comprises a flexible substrate, a graphite sheet, and a heat insulating material. The flexible substrate comprises a first surface and a second surface facing away from the first surface. The flexible substrate is disposed on the graphite sheet, and the second surface faces the graphite sheet. At least one containing cavity is formed between the flexible substrate and the graphite sheet. The heat insulating material is filled in the containing cavity. A cover plate is disposed on the first surface. At least one groove is formed on the flexible substrate from the first surface to the second surface. The groove is sealed by the cover plate to formed a sealed cavity. A phase changing material is filled in the sealed cavity.

Abstract: A method for manufacturing the ultrathin heat dissipation structure includes providing a copper clad sheet, the copper clad sheet comprising an insulation layer and a copper clad 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, the cooper clad layer is used as an inner surface of the containing groove and the insulation layer is then an outer surface of the 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, 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.

Abstract: A resin having thermal conductivity comprises a styrene-butadiene-styrene block copolymer in 35 to 85 parts by weight, a styrene-ethylene-butene-styrene block copolymer in 5 to 65 parts by weight, a polyphenylene ether in 3 to 35 parts by weight; and a dendritic acrylate oligomer in 3 to 45 parts by weight. An adhesive layer and a circuit board using the resin composition are also described.

Abstract: A heat dissipation structure comprises a flexible substrate, a graphite sheet, and a heat insulating material. The flexible substrate comprises a first surface and a second surface facing away from the first surface. The graphite sheet is connected to the second surface. At least one containing cavity is defined on an interface between the second surface and the graphite sheet. The heat insulating material is filled in the at least one containing cavity to form a heat insulating structure.

Abstract: An electronic device includes a heat dissipation structure. The heat dissipation structure comprises a flexible substrate, a graphite sheet, and a heat insulating material. The flexible substrate comprises a first surface and a second surface facing away from the first surface. The flexible substrate is disposed on the graphite sheet, and the second surface faces the graphite sheet. At least one containing cavity is formed between the flexible substrate and the graphite sheet. The heat insulating material is filled in the containing cavity. A cover plate is disposed on the first surface. At least one groove is formed on the flexible substrate from the first surface to the second surface. The groove is sealed by the cover plate to formed a sealed cavity. A phase changing material is filled in the sealed cavity.

Abstract: A resin having thermal conductivity comprises a styrene-butadiene-styrene block copolymer in 35 to 85 parts by weight, a styrene-ethylene-butene-styrene block copolymer in 5 to 65 parts by weight, a polyphenylene ether in 3 to 35 parts by weight; and a dendritic acrylate oligomer in 3 to 45 parts by weight. An adhesive layer and a circuit board using the resin composition are also described.

Abstract: A method for manufacturing the ultrathin heat dissipation structure includes providing a copper clad sheet, the copper clad sheet comprising an insulation layer and a copper clad 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, the cooper clad layer is used as an inner surface of the containing groove and the insulation layer is then an outer surface of the 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, 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.

Abstract: An ultrathin heat dissipation structure includes a copper clad sheet, a cover, a number of bond blocks, and a phase-change material. The copper clad sheet is given containing grooves and a number of ribs round each containing groove. The containing grooves are formed by stamping. The copper clad sheet includes an insulation layer. The copper clad layer is inner surface of the containing groove. The bond blocks are arranged on the ribs and cover is pressed to the stamped copper clad sheet and secured using the bond blocks. The containing grooves form sealing cavities and the phase-change material in the sealed cavity gathers and transfers out any heat generated by components.

Abstract: A heat dissipation structure comprises a flexible substrate, a graphite sheet, and a heat insulating material. The flexible substrate comprises a first surface and a second surface facing away from the first surface. The graphite sheet is connected to the second surface. At least one containing cavity is defined on an interface between the second surface and the graphite sheet. The heat insulating material is filled in the at least one containing cavity to form a heat insulating structure.

Abstract: An ultrathin heat dissipation structure includes a copper clad sheet, a cover, a number of bond blocks, and a phase-change material. The copper clad sheet is given containing grooves and a number of ribs round each containing groove. The containing grooves are formed by stamping. The copper clad sheet includes an insulation layer. The copper clad layer is inner surface of the containing groove. The bond blocks are arranged on the ribs and cover is pressed to the stamped copper clad sheet and secured using the bond blocks. The containing grooves form sealing cavities and the phase-change material in the sealed cavity gathers and transfers out any heat generated by components.