BGA


PBGA
HSPBGA


Overview
 
Ball-grid arrays (BGA) are IC packages, which place output pins in the form of a solder ball matrix. The traces of the BGA are generally fabricated on laminated substrates (BT-based) or polyimide-based films. Therefore, the entire area of substrates or films can be used to route the interconnection. BGA has the advantage of lower ground or power inductance thereby assigning ground or power nets via a shorter current path to PCB. Thermally enhanced mechanisms (heat sink, thermal balls, etc.) can be applied to BGA in order to reduce thermal resistance. The higher functional capabilities of the BGA package technology benefit high power and high speed ICs that require enhanced electrical and thermal performance. Compared with traditional SMT packages, the advantages of BGA are as follows:

Higher interconnect density
Lower assembly cost
Self-alignment during reflow
Lower profile
Ease of thermal and electrical management
Ease of routing



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