A semiconductor package includes a package substrate, a first semiconductor device on an upper surface of the package substrate, a second semiconductor device on an upper surface of the first semiconductor device, a first connection bump attached to a lower surface of the package substrate, a second connection bump interposed between and electrically connected to the package substrate and the first semiconductor device, and a third connection bump interposed between and electrically connected to the first semiconductor device and the second semiconductor device. The first semiconductor device has an edge and a step at the edge.