Patent ID: 7888172

Claim:
A chip packaging method, comprising: providing a carrier substrate having a front surface and a back surface; forming a package structure on said front surface of said carrier substrate, said package structure having a chip-placing hole and a plurality of through holes therein to expose portions of said front surface of said carrier substrate; attaching a chip in said chip-placing hole on said carrier substrate and an active surface of said chip is turned upward and a back surface of said chip is attached on said front surface of said carrier substrate by an adhesive layer; forming a patterned first protective layer on said package structure and a plurality of pads on said active surface of said chip to expose said plurality of through holes; forming a metal layer on said patterned first protective layer, said metal layer having a plurality of fan-out patterned metal traces and is filling into said plurality of through holes to form a plurality of conductive posts, first ends of each said plurality of fan-out patterned metal traces is electrically connected to said plurality of pads on said active surface of said chip and opposite second ends of each said plurality of fan-out patterned metal traces is extended away from said chip and is electrically connected to said plurality of conductive posts; forming a patterned second protective layer on said metal layer, and said patterned second protective layer having a plurality of openings to expose portions of said second ends of said plurality of fan-out patterned metal traces; forming a plurality of patterned UBM layers on said plurality of openings, and said plurality of patterned UBM layers is electrically connected to said plurality of fan-out patterned metal traces; forming a plurality of conductive elements, said plurality of conductive elements is electrically connected to said chip via said plurality of patterned UBM layers and said plurality of fan-out patterned metal traces; and removing said carrier substrate to form a chip package structure.