A semiconductor multi-package module has stacked first and second
packages, each of which includes a die attached to a substrate, in which
the second package is inverted, in which the first and second substrates
are interconnected by wire bonding, and in which the first package
includes a flip-chip ball grid array package having a flip-chip in a
die-up configuration. Also, a method for making a semiconductor
multi-package module, by providing a lower molded package including a
lower substrate and a flip-chip in a die-up configuration, affixing an
upper molded package including an upper substrate in inverted orientation
onto the upper surface of the lower package, and forming z-interconnects
between the upper and lower substrates.