Package comprising a substrate with interconnect routing over solder resist layer and an integrated device coupled to the substrate and method for manufacturing the package

A package comprising a substrate and an integrated device coupled to the substrate. The substrate includes (i) at least one inner dielectric layer, (ii) a plurality of interconnects located in the at least one inner dielectric layer, where the plurality of interconnects includes a pad located on a bottom metal layer of the substrate, (iii) an outer dielectric layer located over the at least one dielectric layer, (iv) at least one routing interconnect coupled to the plurality of interconnects, where the at least one routing interconnect is located over the outer dielectric layer, where the at least one routing interconnect is located below the bottom metal layer of the substrate, and (v) a cover dielectric layer located over the outer dielectric layer and the at least one routing interconnect. The package includes a solder interconnect coupled to the pad located on the bottom metal layer of the substrate.