Patent ID: 6045032
Filing Date: 2000-04-04
Classification: H05K,Y02P

Abstract:
A method of preventing solder reflow of a component attached to a circuit board with solder, the method comprising the steps of:providing a circuit board having a component attached with solder to a first surface of the circuit board;placing the circuit board on a pallet such that a second surface of the circuit board opposite the first surface contacts the pallet, a thermal shield contacting the second surface of the circuit board and completely covering a surface region thereof directly opposite the component so that the component is superimposed by the thermal shield; andplacing the pallet on a wave soldering apparatus and wave soldering the second surface of the circuit board at a temperature above a melting temperature of the solder that attaches the component to the circuit board, the thermal shield preventing the solder on the first surface from reaching the melting temperature.