An inverted pyramid multi-die package provides, for each die pad on an
upper die, a rigid support underneath extending to a substrate. Such
configuration reduces both the wire sweep and weakening torques. A lower
die, smaller than the upper die in at least one dimension, may be
positioned between the upper die and the substrate. The two dice may or
may not contact each other, or they may contact each other via an
intermediate spacer. The lower die may be a flip chip. The multi-die
package may be fashioned without the lower die or the substrate. Wire
sweep is reduced, because the second die is smaller than the upper die in
at least one dimension. Weakening torques are reduced, because spacers at
the periphery of the upper die absorb the impact of bonding wires
thereon.