Patent ID: 8587126
Filing Date: 2013-11-19
Classification: H01L

Abstract:
1. A microelectronic assembly, comprising: a first microelectronic element having a front surface and a first electrically conductive pad exposed at the front surface; a second microelectronic element having a front surface and a second electrically conductive pad exposed thereat, the front surfaces of the first and second microelectronic elements facing one another, and the first and second pads being juxtaposed, each of the microelectronic elements embodying active semiconductor devices; a first electrically conductive element extending within a first opening extending from a rear surface of the first microelectronic element towards the front surface thereof and within a second opening extending from the first opening through the first pad, the first electrically conductive element contacting the first pad and contacting a first surface of the second pad; and a second electrically conductive element extending within a third opening extending from a rear surface of the second microelectronic element toward the front surface thereof, the second electrically conductive element contacting a second surface of the second pad opposite from the first surface, wherein the first electrically conductive element forms a continuous monolithic metal region extending between the rear surface of the first microelectronic element and the first surface of the second pad.