Patent ID: 7763982

Claim:
A package substrate strip having at least a substrate unit, the substrate unit comprising: a substrate having a first surface and an opposite second surface; a plurality of bonding pads disposed on said first surface; a plurality of finger contacts disposed on said first surface; a plurality of plating bars disposed on said first surface, wherein the plating bars connect with corresponding finger contacts and extends out of the substrate unit; a reserved plating bar disposed on said first surface, wherein the reserved plating bar extends out of the substrate unit from a position beside the bonding pads, and connects with the plating bars at outside of the substrate unit; a first patterned solder mask layer disposed on said first surface, wherein the first patterned solder mask layer exposes the bonding pads, the finger contacts and a part of the reserved plating bar; a plurality of first ball pads disposed on the second surface and respectively electrically connecting to the finger contacts via the substrate; a plurality of second ball pads disposed on the second surface and respectively electrically connecting to the bonding pads via the substrate; a second patterned solder mask layer disposed on the second surface and exposing said first ball pads and second ball pads; and an anti-oxidation layer disposed on the finger contacts, the first ball pads and the second ball pads.