Steve, Ron
We did trials with boards manufactured on a horizontal HASL equipment
that had very flat surfaces.
- Minimum pitch produced: 0.3mm
- Smallest chip capacitor: 0603
- BGA pitch 1.27mm
We didn't see any problems, however we only did 50 PCB's.
I believe a problem might be that the tin layer on the pads is very
thin. So shelf time might be short ( Intermetallics ).
Best regards
Guenter
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