Patent ID: 8450839
Filing Date: 2013-05-28
Classification: H01L

Abstract:
1. A stacked microelectronic device assembly, comprising: a first known good packaged microelectronic device including— a first interposer substrate with a plurality of first interposer contacts; a first die carried by the first interposer substrate and electrically coupled to the first interposer contacts via a plurality of wire-bonds; a first casing having a first face at the first interposer substrate and a second face opposite the first face, wherein the first casing completely encapsulates the first die and at least a portion of the first interposer substrate; and a plurality of first through-casing interconnects at least partially encapsulated in the first casing and extending from the first face to the second face, wherein the first interconnects comprise filaments attached to and projecting away from corresponding first interposer contacts, and wherein the filaments comprise thin, flexible wires, wherein each of the plurality of wire-bonds physically contacts one of the plurality of first through-casing interconnects; and a second known good packaged microelectronic device coupled to the first device in a stacked configuration, the second device including— a second interposer substrate with a plurality of second interposer pads; a second die carried by the second interposer substrate and electrically coupled to the second interposer pads; and a second casing completely encapsulating the second die and at least a portion of the second interposer substrate, wherein the second interposer pads are in direct contact with and electrically coupled to exposed portions of the corresponding first interconnects at the second face of the first casing.