SEMICONDUCTOR PACKAGE AND MANUFACTURING METHOD THEREOF

A semiconductor package having a signal transfer path between semiconductor chips and a method of manufacturing the semiconductor package are provided. The semiconductor package includes a first redistribution substrate, a semiconductor chip stack arranged on the first redistribution substrate and including a lower chip and an upper chip, a through post arranged on the first redistribution substrate around the semiconductor chip stack, and a second redistribution substrate arranged on the semiconductor chip stack and the through post. The upper chip includes a through-electrode arranged on an integrated circuit layer, and has a front surface, which is an active face and faces the lower chip, and a back surface, which is an inactive face and faces the second redistribution substrate.