Patent ID: 8928153
Filing Date: 2015-01-06
Classification: H01L

Abstract:
1. A microelectronic assembly, comprising: a substrate having oppositely-facing first and second surfaces and an aperture extending between the first and second surfaces, the substrate having contacts exposed at the first surface thereof and first terminals exposed at the second surface thereof; a first microelectronic element having a front surface facing the first surface of the substrate, a rear surface remote therefrom, and an edge extending between the front and rear surfaces, the first microelectronic element having a plurality of contacts exposed at the front surface thereof adjacent the edge of the first microelectronic element; a second microelectronic element having first and second opposed edges, a front surface extending between the first and second edges, and a plurality of contacts disposed in a central region of the front surface thereof remote from the first and second edges, the front surface of the second microelectronic element facing the first microelectronic element and projecting beyond the edge of the first microelectronic element; an encapsulant at least partially covering the first and second microelectronic elements; first leads electrically connecting the contacts of the first microelectronic element to the first terminals; second leads connecting the contacts of the second microelectronic element to the first terminals, the first and second leads having portions aligned with the aperture; second terminals exposed at a surface of the microelectronic assembly opposite from the second surface of the substrate, wherein at least some of the second terminals overlie at least one of the microelectronic elements, the surface of the microelectronic assembly at which the second terminals are exposed being a surface of the encapsulant; and wire bonds extending in an upward direction away from the contacts of the substrate and above and away from the first surface of the substrate directly to the at least some of the second terminals that overlie the at least one of the microelectronic elements, the encapsulant covering at least portions of the wire bonds, wherein the wire bonds have bases attached to the contacts of the substrate and unencapsulated end surfaces remote from the contacts of the substrate and remote from the microelectronic elements, the unencapsulated end surfaces being uncovered by the encapsulant, and for each of said wire bonds, the unencapsulated end surface is exposed as one of the second terminals or at least a portion of the unencapsulated end surface is directly connected to a bottom surface of one of the second terminals and not directly connected to either of the first or second microelectronic elements.