Patent ID: 8841763

Claim:
A microelectronic assembly, comprising: first and second substantially planar elements, each having a first surface and an edge surface extending away from the respective first surface, each of the first and second elements having a dielectric layer exposed at the first surface and a plurality of first conductive elements exposed at the first surface, at least one of the first or second elements being a microelectronic element embodying a plurality of active circuit elements, wherein the second element at least partly overlies the first surface of the first element, with the first surface of the second element facing away from the first element; a single monolithic dielectric region contacting the first surface and at least one edge surface of at least one of the first and second elements, at least one of the first conductive elements exposed within an opening of the monolithic dielectric region, the monolithic dielectric region having a surface above the first surface of the at least one of the first or second elements; and at least one second electrically conductive element overlying and extending along a surface of the monolithic dielectric region at locations remote from the first edge surface and along the at least one edge surface of the at least one first or second element, at least a portion of the second electrically conductive element having a thickness of less than 10 microns and extending from the at least one first conductive element to a location beyond the at least one edge surface; and a dielectric bonding layer contacting the surface of the monolithic dielectric region and overlying the second electrically conductive element, wherein a third element is bonded to the monolithic dielectric region on the second element through the dielectric bonding layer.