Patent ID: 6946741

Claim:
A semiconductor device comprising: a first semiconductor chip; a substrate onto which the first semiconductor chip is flip-chip bonded and on which a concave is formed along one side of the first semiconductor chip which is flip-chip bonded; a second semiconductor chip which is flip-chip bonded onto a portion on the substrate opposite the first semiconductor chip across the concave on the substrate; and a resin applied to a space between the substrate and the first semiconductor chip and a space between the substrate and the second semiconductor chip, a filling factor of the resin being 60% or lower in a space domain having a volume V, where a base thereof corresponds to an orthogonal projective plan on the substrate by a gap between the first semiconductor chip and the second semiconductor chip which is seen from an upper direction while a height thereof corresponds to a distance from a surface of the substrate onto which the flip-chip bonding is established to one rear surface being not higher than the other rear surface between rear surfaces of the first semiconductor chip and the second semiconductor chip relative to the substrate.