Patent ID: 7816778

Claim:
A microelectronic device, comprising: a leadframe; a flexible circuit device attached to the leadframe, the flexible circuit device having a first portion corresponding to the leadframe and a second portion extending beyond the leadframe; a first integrated circuit device attached to the first portion of the flexible circuit device; an encapsulant covering the first integrated circuit and at least a part of the first portion of the flexible circuit device; and a second integrated circuit device attached to the second portion of the flexible circuit device and to the encapsulant, wherein: the leadframe includes a plurality of lead fingers; the flexible circuit device includes a plurality of bond sites and a plurality of electrical connectors at a first surface, at least some of the bond sites being in electrical connection with some of the electrical connectors; the flexible circuit device is adhesively attached to the leadframe at a second surface opposite the first surface of the flexible circuit device; a plurality of wirebonds extending between corresponding lead fingers of the leadframe and the bond sites of the flexible circuit device; the encapsulant is disposed on the first surface of the flexible circuit device; at least a part of the second portion of the flexible circuit device is above the encapsulant; the microelectronic device further includes a plurality of conductive balls coupling a first side of the second integrated circuit device to the second portion of the flexible circuit device; and an adhesive tape adhesively coupling a second side of the second integrated circuit device to the encapsulant.