Patent ID: 6284998
Filing Date: 2001-09-04
Classification: B23K,H01L,H05K

Abstract:
A method for laser soldering, comprising the steps of:providing an electronic component having at least two terminations thereon; a substantially flat dielectric substrate having a first surface on a first side thereof, a second surface on a second side thereof, and at least two mounting pads arranged on the first surface in matched relation with the terminations of the electronic component; and a diode laser;depositing solder paste atop the mounting pads;placing the electronic component atop the substrate such that each termination rests generally atop its respective mounting pad;forming a three dimensional structure from said substrate; andafter the step of forming a three-dimensional structure, directing laser energy from the diode laser to at least one of the mounting pads from the second side of the substrate for a predetermined time, such that the solder paste atop the at least one of the mounting pads is melted.