A variety of techniques and structures are described that integrate an
insulated pedestal into the back surface of integrated circuit dice. The
die has an insulated integral pedestal formed therein that acts as a
spacer. The pedestal has a footprint that is smaller than the total
footprint of the die so that a portion of the active region of the die
overhangs the pedestal. The geometry of the pedestal may be widely varied
and in some embodiments, multiple pedestals may be provided on the
stacked die. In another aspect, the pedestals are formed at the wafer
level such that the pedestals are defined in the back surface of the
wafer. Often, the thickness of the pedestals will be thicker than the
portions of the wafer outside the pedestal areas. The described dice are
particularly well suited for use in stacked die packages.