Patent ID: 6456089
Filing Date: 2002-09-24
Classification: G01R

Abstract:
A method for testing modules comprising electrical components, without connection to a supply voltage, on a test machine comprising a number of contacting elements movable in all directions for producing electrical contacts with contact points belonging to respective line networks of the module being tested and with which, in a short-circuit and component test phase, groups of contact points of the modules are successively contacted and electrical quantities are measured by said test machine for detecting shorts and faulty components on the electrical modules, the method comprising the steps of:at a beginning of the short-circuit and component test phases, successively implementing measurements at all possible line networks of the module by respectively referring to a pertaining ground/potential point and by contacting successively occurring groups of contact points; and measuring values with said test machine, given a measurement at a line network having at least one of resistances, capacitances, and inductances, of said at least one of resistances, capacitances, and inductances of the line network between said ground/potential and appertaining said contact points, wherein line network ground/potential measurements are implemented by contacting groups of contact points at line networks that have a common, pertaining ground/potential point; and said method further comprising the step of fixing a contact to said common ground/potential point for multiple measurements.