Abstract: Microelectronic assemblies, related devices and methods, are disclosed herein. In some embodiments, a microelectronic assembly may include a conductive pad having a first surface, an opposing second surface, and lateral surfaces extending between the first and second surfaces; a conductive via coupled to the first surface of the conductive pad; a liner on the second surface and on the lateral surfaces of the conductive pad, wherein a material of the liner includes nickel, palladium, or gold; a microelectronic component having a conductive contact; and an interconnect electrically coupling the conductive contact of the microelectronic component and the liner on the second surface of the conductive pad, wherein a material of the interconnect includes nickel or tin.

Abstract: Embodiments of a microelectronic assembly comprise an interposer comprising a dielectric material and a pad of conductive material having at least one of a ceramic liner and fin structures; at least two integrated circuit (IC) dies coupled to the interposer; and a bridge die in the interposer conductively coupled to the at least two IC dies. The bridge die has a first face and an opposing second face, the first face of the bridge die is proximate to the at least two IC dies, and the second face of the bridge die is in contact with the pad.

Abstract: Methods and apparatus to embed host dies in a substrate are disclosed An apparatus includes a first die having a first side and a second side opposite the first side. The first side includes a first contact to be electrically coupled with a second die. The second side includes a second contact. The apparatus further includes a substrate including a metal layer and a dielectric material on the metal layer. The first die is encapsulated within the dielectric material. The second contact of the first die is bonded to the metal layer independent of an adhesive.