| abstract |
The base part is in contact with the heating element, and the base part includes a heat dissipation part that radiates heat received from the heating element. The base part includes at least one metal layer, and the heat dissipation part includes the metal layer and the graphite layer. A heat sink comprising a laminate laminated via an adhesive layer formed using a composition containing a polyvinyl acetal resin, or A heat sink for dissipating heat from a heating element, The heat sink includes a laminate in which a metal layer and a graphite layer are laminated via an adhesive layer formed using a composition containing a polyvinyl acetal resin, and is disposed so as to cover the heating element. And heat sink. |