Devices and stacked microelectronic packages with in-trench package surface conductors and methods of their fabrication

Abstract

Embodiments of methods for forming microelectronic device packages include forming a trench on a surface of a package body between exposed ends of first and second device-to-edge conductors, and forming a package surface conductor in the trench to electrically couple the first and second device-to-edge conductors. In one embodiment, the package surface conductor is formed by first forming a conductive material layer over the package surface, where the conductive material layer substantially fills the trench, and subsequently removing portions of the conductive material layer from the package surface adjacent to the trench. In another embodiment, the package surface conductor is formed by dispensing one or more conductive materials in the trench between the first and second exposed ends (e.g., using a technique such as spraying, inkjet printing, aerosol jet printing, stencil printing, or needle dispense). Excess conductive material may then be removed from the package surface adjacent to the trench.

Dependencies are inferred from the claim text.