Patent ID: 6768083
Filing Date: 2004-07-27
Classification: B23K,H05K

Abstract:
A reflow soldering apparatus for soldering an electronic component to an unshielded circuit board, the apparatus comprising:a housing having a conveyor to convey the unshielded circuit board through the housing; at least one heating zone disposed in the housing; and at least one infrared heater disposed in the at least one heating zone, the at least one infrared heater being spaced from the conveyor and disposed and configured to emit unreflected infrared heat toward the conveyor, the at least one infrared heater being further disposed at a position in the heating zone that corresponds to a position of the component on a surface of the unshielded circuit board when the circuit board is conveyed through the heating zone, such that, as the circuit board is conveyed through the heating zone, the component is conveyed through a line-of-sight of the infrared heater, the infrared heater being further configured to direct the unreflected infrared heat only to the position of the component on the circuit board when the circuit board is conveyed through the heating zone, such that, as the circuit board is conveyed through the heating zone, the component receives a substantial portion of the unreflected infrared heat the infrared heater emits and is selectively heated.