BGA Failure Analysis 

 Ball Grid Array (BGA) Failure Analysis


BGA failure analysis is made difficult by the high density of I/O pins in the Ball Grid Array (BGA) devices.  BGA packaging involves the packing of large numbers, sometimes upwards of 400 to 500 I/O pins, into a relatively small area, which is their primary advantage to manufacturers. The high number of pins is also what makes the BGA failure analysis task so complex. Most BGA root cause failure analysis done at SEM Lab, Inc. has been related to warpage issues, black-pad-syndrome, brittle interfacial fracture, and assembly level process issues.

Examples of Scanning Electron Microscopy (SEM) images of BGA failures, BGA cross-sections and other failures seen in BGAs are shown below.

A paper describing BGA failure mechanisms we have seen at SEM Lab, Inc. can be found here.





Other device failure analysis information:

bga Failure Analysis

BGA joint microsection.

Brittle interfacial fracture

Brittle interfacial fracture.

Brittle interfacial fracture

Brittle interfacial fracture.

Solder ball composition

Solder ball composition.