A stackable packaged chip includes a substrate with a conductive wiring
formed therein or thereon. The substrate further includes a plurality of
substrate contact pads arranged around a periphery portion of the
substrate. A chip mounted on the substrate including contact pads that
are electrically connected with the conductive wiring of the substrate,
and a ring surrounding edges of the chip are also included. The ring is
formed from an electrically insulating material and includes a plurality
of openings, each opening adjacent a substrate contact pad to allow for
electrical connection to the chip though the substrate contact pad.