Patent ID: 7947529

Claim:
A method for forming a microelectronic device, the method comprising: stacking a first die package on a second die package, the first die package having a first die, first metal leads electrically coupled to the first die, and a first dielectric casing disposed over the first die and the first metal leads, and the second die package having a second die, second metal leads electrically coupled to the second die, and a second dielectric casing disposed over the second die and the second metal leads; removing at least a portion of a first side of the first dielectric casing to expose a first surface of the individual first leads that is generally co-planar with the first side of the first dielectric casing; removing at least a portion of a second side of the second dielectric casing to expose a second surface of the individual second leads that is generally co-planar with the second side of the second dielectric casing; aligning a first lateral surface of the first metal leads at a first lateral surface of the first dielectric casing with a second lateral surface of the second metal leads at a second lateral surface of the second dielectric casing; and forming external inter-package connectors that couple individual first leads to individual second leads along, at least in part, the first and second lateral surfaces.