Patent ID: 8363409

Claim:
An integrated device of heat dissipation unit and package component, comprising: a non-insulation type package component, having a front side, a back side and a metal tab with a through hole; an insulation sheet, attached on the back side of the non-insulation type package component, and provided with a via hole whose diameter is substantially equal to that of the through hole; a heat dissipation unit, located outside the insulation sheet, and provided with a tapped hole corresponding to the through hole; a fastener, having a head, penetrating the through hole and the via hole from the front side of the non-insulation type package component, and screwing into the tapped hole; a washer, put around the fastener, and sandwiched between the metal tab and the head of the fastener; and a sleeve, penetrated by the fastener, having a narrow portion whose diameter is slightly smaller than that of the via hole and a wide portion whose diameter is slightly larger than that of the via hole, wherein the narrow portion penetrates into the via hole and the through hole from an outside of the insulation sheet, and the wide portion is sandwiched between the insulation sheet and the heat dissipation unit, wherein the narrow portion penetrates into the washer.