Abstract: A LED (Light Emitting Diode) substrate and packaging for a single diode or a diode array is described. The substrate includes an integral reflector(s) for the diode(s) in the form of a shaped cavity (or cavities) to house the diode die(s). The reflector cavity walls can optionally be plated with a reflective material and may include a molding material to serve as lens and sealant. Also described is a method for building a substrate with direct metal connection of low thermal path between a die and a bottom surface of the substrate. Another embodiment is for two electrical traces crossing each other without the need for a two layer interconnect structure. The substrate and reflector structures are built of aluminum—aluminum oxide composition applying a technology known in the art as ALOX technology. The resulting substrate and packaging afford the required electrical interconnections and enhanced thermal performance while maintaining excellent mechanical properties.

Abstract: A method of enhancing thermal management of an electronic device comprising the steps of; forming an ALOX™ interconnect substrate; taking an electronic device; and interconnecting the electronic device to the interconnect substrate to yield a substantial split of thermal and electrical paths in the interconnect substrate.

Abstract: A device (1,21,28, 36, 37, 86, 103, 121, 128) for electronic packaging, the device including a discrete solid body having a pair of opposing generally parallel major surfaces, the solid body having a body portion of a porous valve metal oxide based material with a pair of exterior surfaces respectively constituting portions of the major surfaces and extending inward from one major surface towards the other major surface, the body portion having one or more electrically insulated valve metal conductive traces of from about 10 &mgr;m to about 400 &mgr;m thickness in a direction from one major surface to the other major surface embedded therein, one or more of said traces having a trace portion divergingly extending inward from an exterior surface constituting a portion of one of said major surfaces.

Abstract: A substrate for electronic packaging, the substrate having a discrete, generally prismatoid, initially electrically conductive valve metal solid body with one or more spaced apart, original valve metal vias each individually electrically islolated by a porous oxidized body portion therearound. A pin jig fixture for mechanically masking a metal surface, the pin jig fixture having an anodization resistant bed of pins each pin having a leading end surface for intimate juxtaposition against a metal surface to mask portions thereof.