摘要:
A package on package stacking method is provided. The package on package stacking method includes attaching a lead frame (24) and a substrate (22); attaching an integrated circuit (IC, 34) and the substrate, and electrically connecting the IC (34) and the lead frame (24); and packaging the IC (34), a part of the substrate (22) and a part of the lead frame (24), and exposing a surface mount joint to form a concave package (42).