Abstract: A die including a die body having a first body surface, a second body surface on an opposite side of the die body as the first body surface, an interconnect region adjacent to the first body surface including interconnect dielectric layers with metal lines and vias, a transistor region above the interconnect region, the metal lines and vias making electrical connections to one or more power rails of the transistor region and electrically connected to transistors of the transistor region, a power region above the transistor region including an electro-conductive film on the second body surface and TSVs in the power region, an outer end of the TSV contacting the film and an embedded end of the TSVs contacting one of the power rails. A method of manufacturing an IC package and computer with the IC package are also disclosed.