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The Knowledge and Know-how Connection
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June 18, 2013
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Views: 4639
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Situation: In house repair facility for boards from various vendors. A board may bear a ROHS label, but the lead free solder alloy is not known.
What is the best rework procedure? Clean off original solder residue first, or just use any lead free alloy and not worry about the resulting mix?
Julius Madey, NY State Thruway Authority
In your "board talk" concerning repairing lead-free joints with tin-lead, I believe you said, in-part, "If the board is used in a high stress environment then the tin-lead is more reliable but if its a low-stress environment then the lead free repair is more reliable".
If I heard you correctly, could you educate me briefly as to why? I would have thought the repair best suited for a high-stress environment would always be more reliable in any situation. What am I missing here?
Brent Sorensen, Universal Synaptics