Patent ID: 7786579
Filing Date: 2010-08-31
Classification: H01L,H05K

Abstract:
1. A microelectronic package having integrated circuits, comprising: multiple dielectric laminate layers; copper circuitry between the dielectric laminate layers, the copper circuitry comprising circuit traces; wherein the circuit traces begin beyond ball grid array pads, extend in a longitudinal direction from between the dielectric layers, and end over the ball grid array pads; wherein a protective copper tongue is below an extension of the circuit traces; wherein the protective copper tongue begins beyond the ball grid array pads, extends in the longitudinal direction parallel to the circuit traces, and ends over the ball grid array pads; wherein a width of the circuit traces directly over the protective copper tongue edge is widened; and wherein the end of the protective copper tongue over the ball grid array pads is curved in a width direction.