Patent ID: 8552518

Claim:
A microelectronic assembly, comprising: a first microelectronic element comprising: a substrate with first and second opposing surfaces, a semiconductor device, and conductive pads at the first surface which are electrically coupled to the semiconductor device; a second microelectronic element comprising: a handler with first and second opposing surfaces, a second semiconductor device, and conductive pads at the handler first surface which are electrically coupled to the second semiconductor device; the first and second microelectronic elements are integrated to each other such that the second surfaces face each other; the first microelectronic element includes conductive elements each extending from one of the conductive pads and through the substrate to the second surface of the first microelectronic element; the second microelectronic element includes conductive elements each extending between the first and second surfaces of the handler; and each of the conductive elements of the first microelectronics element is electrically coupled to at least one of the conductive elements of the second microelectronics element.