A semiconductor device includes a plurality of semiconductor chips; and a plurality of substrates, each of the substrates having one of the semiconductor chips mounted thereon. The method includes generating a selection signal, and generating a linear space target address using the selection signal by generating a plurality of corrected target addresses and selecting the linear space target address from the plurality of corrected target addresses using the selection signal. During normal operation, the shiftinterface system electrically couples the FPGAs to the ASIC. The mold may incorporate a plurality of cavities.