A semiconductor package includes a semiconductor module, a first package extension frame, a second package extension frame, and a plurality of fasteners. The semiconductor module includes a first side surface, a second side surface, a first major surface, and a second major surface on an opposite side of the semiconductor module from the first major surface. The first package extension frame is configured to attach to the first side surface. The second package extension frame is configured to attach to the second side surface. The plurality of fasteners are configured to mechanically couple the first package extension frame and the second package extension frame to one or more of a circuit board arranged on the first major surface and/or a heat sink arranged on the second major surface.