/ Heat-Radiating Sheet with the Functions of EM Wave Absorption and Shielding

摘要

The present invention relates to an improved heat radiation sheet (hereinafter referred to as a radio wave absorption / shielding functional heat dissipation sheet) having an unnecessary electromagnetic wave absorbing / shielding function, and in particular, is applied to a printed circuit board (PCB) or a chassis of an integrated circuit of various electronic products. It is to ensure the stability and reliability of electronic products by realizing the quietness and slimming of the relevant products by taking advantage of the absorption and shielding of unnecessary electromagnetic waves, and by carrying out efficient heat dissipation treatment and EMC (electromagnetic interference) measures. To this end, the present invention, in dissipating heat generated through an integrated circuit of an electronic product to the outside, a radio wave absorption / shielding functional heat dissipation sheet between the heat sinks at the top of the surface while directly contacting the top of the integrated circuit having a heat generating function. Although interposed between, the radio wave absorption / shielding functional heat dissipation sheet is made of a laminated structure of a thermally conductive aluminum thin plate coated with a ceramic, and a polyester film (protective film) attached thereto with an adhesive.