In a message dated 9/16/99 9:02:35 AM US Eastern Standard Time,
[log in to unmask] writes:
> As a
> hint, if your boards have dry film mask, check the compatibility of the
mask
> and flux very carefully.
Not only dry film, but LPI as well. I found that the surface finish of the
mask has quite a large effect on the formation of solder balls. A matte
finish will have much fewer solder balls than a smother finish.
Jon Moore
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