Fixed-gap solder reflow method
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United States of America Patent
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Jun 19, 2001
Grant Date -
N/A
app pub date -
Apr 29, 1998
filing date -
Apr 29, 1998
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Abstract
A method is provided for forming a plurality of solder joints for electrically and mechanically coupling a printed circuit board (100) and a flexible circuit (101). Solder is applied to the connection surfaces of the printed circuit board (100), and the connection surfaces of the flexible circuit (101) are tinned. The circuit board (100) and flexible circuit (101) are then positioned so that the connections surfaces of each are in alignment and a gap exists between circuit board (100) and flexible circuit (101). The gap between circuit board (100) and flexible circuit (101) is precisely controlled and permits the solder of the printed circuit to be in contact with the connection surfaces of the flexible circuit (101). The solder is reflowed by applying heat by vapor phase condensation.
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