Patent ID: 8853058

Claim:
A method of making surface mount semiconductor devices, comprising: providing a structure having opposed first and second faces and including an array of apertures extending between said opposed first and second faces, an array of sets of conductive frame members extending between and beside said apertures, an array of sets of conductive via members exposed at said first face and extending towards said second face, and via insulating material surrounding said via members laterally; forming an encapsulated array including said structure and an array of semiconductor dies positioned in said array of apertures, said semiconductor dies each having an active face presenting a die set of electrical contact elements positioned in said first face of said structure and a further die face opposite said active face, with said second face and said further die faces embedded in an encapsulant, and a redistribution layer on said first face and said active die faces, said redistribution layer including a layer of redistribution insulating material, and an array of sets of redistribution conductors within said redistribution insulating material; providing an array of device sets of exposed electrical contact elements on said redistribution layer with said sets of redistribution conductors interconnecting said via members and said electrical contact elements of said die sets with electrical contact elements of said device sets; and removing material of at least said structure from a back face of said encapsulated array opposite said redistribution layer to expose said via members individually at said back face for connection to electronic components stacked vertically on said back face, said via insulating material insulating said via members from each other.