Patent ID: 6095403
Filing Date: 2000-08-01
Classification: B23K,H05K,Y02P

Abstract:
A method for connecting terminals of electronic components to a circuit board at solder joints located between said electronic component terminals and said circuit board, said method comprising:placing a first group of said electronic components on corresponding ones of said solder joints on a first side of said circuit board;passing said circuit board, on a first pass, through a soldering zone in a soldering oven, said soldering zone being maintained above a solder flow temperature at which said solder joints liquefy, said first group of said electronic components being soldered to said first side of said circuit board during said first pass;placing a second group of electronic components on a second side of said circuit board;passing said circuit board on a second pass through said soldering zone for soldering said second group of components to said second side of said circuit board; anddirecting a gas flow into said soldering zone at said first side of said circuit board during said second pass.