Patent ID: 9461015
Filing Date: 2016-10-04
CPC Classification: H01L

Claim Text:
1. A microelectronic assembly, comprising: a dielectric element having oppositely-facing first and second surfaces and at least one first aperture extending between the first and second surfaces, the dielectric element further having electrically conductive elements thereon including a plurality of terminals exposed at the first surface; a first microelectronic element having a rear surface and a front surface facing the dielectric element, the first microelectronic element having a plurality of contacts exposed at the front surface thereof; a second microelectronic element including a rear surface and a front surface facing the rear surface of the first microelectronic element, the second microelectronic element having a plurality of contacts exposed at the front surface thereof projecting beyond an edge of the first microelectronic element; a first signal lead extending through the at least one aperture to a conductive element on the dielectric element and electrically connected between a first contact of the first microelectronic element and a first terminal of the dielectric element; and a first reference lead connected to at least one conductive element on the dielectric element, a portion of the first reference lead being substantially parallel to and spaced a substantially uniform distance from a substantial portion of the first signal lead, such that a desired impedance is achieved for the first signal lead, the first reference lead used to connect to a reference potential and being electrically connected to at least one contact of the first microelectronic element, wherein the first reference lead extends completely across the first aperture of the dielectric element.