Patent ID: 9113547
Filing Date: 2015-08-18
Classification: C25D,H01L,H05K,Y10T

Abstract:
1. A method comprising: forming a dielectric protrusion on a laminated substrate surface, the dielectric including a necking region and a main routing region, the necking region including an area within a footprint of a die to be situated on the dielectric, and the main routing region contiguous with the necking region and extending outwardly therefrom; ablating only the dielectric in the necking region with laser projection patterning (LPP); plating the main routing region and the necking region with copper; removing over-plated copper from the main routing region and the necking region; electroless copper plating over the main routing region and the necking region; patterning the main routing region and the necking region on the dielectric with dry film resist (DFR); plating the main routing region such that a routing density in the necking region is greater than a routing density in the main region; and removing the DFR.