Patent ID: 7117587
Filing Date: 2006-10-10
Classification: H01L,H05K,Y10T

Abstract:
1. A method for fabricating a substrate, said substrate including a plurality of chip package substrates, comprising the steps of: providing one combined PCB, including a soft PCB and a multi-layer rigid PCB fixed on a top surface of said soft PCB; forming at least one groove on an upper surface of said multi-layer rigid PCB; milling a portion of said multi-layer rigid PCB between said at least one groove for exposing a corresponding portion of said soft PCB to define an exposed area; drilling through said combined PCB along two opposite sides of said at least one groove and said corresponding exposed area of said soft PCB; and forming breakable parts at a center of said corresponding portion of said soft PCB and two opposite outside edges of said at least one groove.