Patent ID: 7839157
Filing Date: 2010-11-23
Classification: G01R,H05K

Abstract:
1. A method for inducing degradation of a solder joint on a surface mount printed wiring board coupon including alternating layers of dielectric material and conductive material stacked one upon another, and a heating trace, connected to the solder joint, and mounted on a surface of the surface mount printed wiring board coupon or between layers of the dielectric material, the method comprising: measuring a first value indicative of a temperature of the heating trace connected to the solder joint; applying a particular current and a particular voltage to the heating trace connected to the solder joint when the temperature indicated by the first value is determined not to be equal to a desired temperature; and continuing both the measuring of the first value and the applying of the particular current and the particular voltage only while the temperature indicated by the measured first value is determined not to be equal to the desired temperature; and determining whether additional steps are to be performed when the measured first value is indicative of the temperature of the heating trace being equal to the desired temperature.