An integrated circuit package in package system includes: providing a substrate with a first wire-bonded die mounted thereover, and connected to the substrate with bond wires; mounting a triple film spacer above the first wire-bonded die, the triple film spacer having fillers in a first film and in a third film, and having a second film separating the first film and the third film, and the bond wires connecting the first wire-bonded die to the substrate are embedded in the first film; and encapsulating the first wire-bonded die, the bond wires, and the triple film spacer with an encapsulation.