Patent ID: 7422930
Filing Date: 2008-09-09
Classification: H01L

Abstract:
1. A method of forming a stacked-die assembly, the method comprising: providing a substrate with contacts formed on a top surface; placing a bottom side of a first die over the top surface of the substrate, the first die having a top side with a redistribution layer that comprises re-routing lines that redistribute bond pads located on a right side and a left side of a gap in an interior region to corresponding re-routed bond pads in a periphery region; placing a spacer over the first die; placing a bottom side of a second die over the spacer, the second die having a first side with a redistribution layer that comprises a multiplicity of re-routing lines that redistribute bond pads located on a right side and a left side of a gap in an interior region to corresponding re-routed bond pads located on a left side and a right side of said gap respectively in a periphery region, each one of said multiplicity of said re-routing lines extending without an intermediate connection from said bond pads in said interior region to said corresponding re-routed bond pads in said periphery region; and electrically coupling wire leads from the re-routed bond pads of the first die and the second die to the contacts.