A low cost microelectronic circuit package includes a single build up
metallization layer above a microelectronic die. At least one die is
fixed within a package core using, for example, an encapsulation
material. A single metallization layer is then built up over the die/core
assembly. The metallization layer includes a number of landing pads
having a pitch that allows the microelectronic device to be directly
mounted to an external circuit board. In one embodiment, the
metallization layer includes a number of signal landing pads within a
peripheral region of the layer and at least one power landing pad and one
ground landing pad toward a central region of the layer.