Silkscreen should not encroach any surface mount pads.
It contaminates the solderpaste during reflow.
Optimally, the silkscreen should not encroach soldermask
openings because the height of the soldermask causes "skips"
in the silkscreening, causing the text to be less readable.

Tom Kavendek
Lucent Technologies
Murray Hill, N.J.
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