Patent ID: 8525340

Claim:
A packaged electronic device, comprising: a flexible circuit structure comprising a first structural layer and a plurality of electrical conductors disposed on the first structural layer, the plurality of electrical conductors comprising a plurality of respective first ends and a plurality of respective second ends; a die comprising a first surface, an opposing second surface, and die circuitry formed on the first surface, the die bonded to the flexible circuit structure by a flexible attachment layer interposed between the second surface and the first structural layer, the die further comprising a plurality of through-wafer interconnects in electrical contact with the die circuitry and extending through the die, through the flexible attachment layer, and into electrical contact with the respective electrical conductors at the first ends; a flexible second structural layer disposed on the die and exposed portions of the electrical conductors, wherein the die and the electrical conductors are encapsulated by the first structural layer and the second structural layer; and wherein at least one of the first structural layer and the second structural layer comprises a plurality of openings defining respective exposed areas on the electrical conductors at the second ends.