White Paper: Basics of Ball Grid Arrays (BGAs)

BGA’s are the boon and bane of engineers and printed circuit board designers. Their unparalleled pin density and low lead inductance are essential in today’s high-pin count, high-frequency integrated circuits. However, that same pin density and unique interface create a challenge unique unto themselves. These challenges need to be faced head on since the ball grid array (BGA) is prevalent in modern PCBs. The quick overview provided here offers engineers a good starting point for improving BGA designs.