Solder bridging between closely spaced gull wing leads of fine pitch QFP ... Advanced deployed eutectic tin/lead solder balls on the QFP interface to the ...
... through the oil separating high-voltage bus bars in the transformer. ... Robotic solder dipping with tin-lead solder is said to work for some, but ...
As the melting point is less than 156C its far less damaging than conventional tin/lead or Al solder. You can roll your own solders quite simply but ...
I have seen perfect looking BGA's with lead free solder balls instead of tin lead (military product). Parts would work, but the die was different. The ...