Laser-diode based soldering system with vision capabilities

摘要

Describes the design and construction of an experimental prototypelaser soldering workstation. The key components of this system are a15-watt fiber-coupled laser diode array, and a PC vision system. Thevision system is used for alignment of the part to be soldered and forobservation of the laser-induced reflow. First, the paper describes themajor components of the prototype soldering workstation. Second,additional details concerning the optical system for laser beamdelivery, imaging, and illumination are given. Next, results ofsoldering with the laser diode system are presented along with practicalrecommendations for the overall process. Finally, some possible methodsfor feedback control of the soldering parameters using image data arementioned