senilicus
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PCB defects
Hello All,
lately we received a batch of assembled pcb's from our assembler and it turned out that from a 100 pcb's only 20 pieces are working oke.
There are problems under two BGA's, pitch =1mm, with courtyard via's
X-raying the pcb's doesn't explain why the yield is so low. One other possibility is that we are facing a moisture problem at the pcb level.
The pcb's are assembled in a lead-free environment and I know that the higher temperatures can cause defects on the pcb. Anyone has some experience/information on this issue.
Hello All,
lately we received a batch of assembled pcb's from our assembler and it turned out that from a 100 pcb's only 20 pieces are working oke.
There are problems under two BGA's, pitch =1mm, with courtyard via's
X-raying the pcb's doesn't explain why the yield is so low. One other possibility is that we are facing a moisture problem at the pcb level.
The pcb's are assembled in a lead-free environment and I know that the higher temperatures can cause defects on the pcb. Anyone has some experience/information on this issue.