US Patent 10304800 Packaging with substrates connected by conductive bumps

A semiconductor structure includes a first substrate including a first surface and a second surface opposite to the first surface; a first die disposed over the second surface of the first substrate; a plurality of first conductive bumps disposed between the first die and the first substrate; a molding disposed over the first substrate and surrounding the first die and the plurality of first conductive bumps; a second substrate disposed below the first surface of the first substrate; a plurality of second conductive bumps disposed between the first substrate and the second substrate; and a second die disposed between the first substrate and the second substrate.