Patent ID: 8426245

Claim:
A packaging method, comprising: providing a plurality of dices, wherein each of said dices has a plurality of bonding pads disposed on an active surface; attaching said plurality of dices on a substrate, wherein each said plurality of dices is flip-chip to be attached to an adhesive layer on said substrate; forming a polymer material on said substrate and a portion of said plurality of dices; capping a molding apparatus on said polymer material to enforce said polymer material to fill around said plurality of dices and cover each said plurality of dices, wherein a plurality of ribs is disposed on said molding apparatus; removing said molding apparatus to expose a surface of said polymer material and form a plurality of slots on said surface of said polymer material which is formed by said plurality of ribs; removing said substrate to expose said active surface of each said plurality of dices and to expose said active surface of each said plurality of bonding pads; forming a plurality of elongated metal lines, each said plurality of elongated metal lines having a first end electrically coupled to one of said plurality of bonding pads; and forming a plurality of conductive elements on a second end of each said plurality of elongated metal lines.