Patent ID: 6774931
Filing Date: 2004-08-10
Classification: G01N,H05K

Abstract:
An inspection method for inspecting electrodes of electronic components or lands formed on a circuit board substrate corresponding to the electrodes of the electronic components to be mounted on the circuit board substrate, comprising:setting an algorithm for moving a field of view of a camera in succession from an inspection start point to an inspection end point along a predetermined path corresponding to a shape of the electronic component; teaching the inspection starting point to the camera by positioning the camera at the inspection starting point where a predetermined number of electrodes or lands come within the field of view of the camera; obtaining a pitch space between two electrodes or lands within the field of view of the camera when the camera is positioned at the inspection starting point; determining an amount of movement of the camera from one position to a subsequent position for inspection along the predetermined path based on the pitch space; and moving the field of view of the camera automatically in succession along the predetermined path corresponding to the shape of the electronic component according to the preset algorithm and by the determined amount of movement of the camera from one position to the subsequent position such that the movement of the field of view of the camera is based on the pitch space between two electrodes or lands and inspecting all of the electrodes or lands from the inspection starting point to the inspection end point during movement of the field of view of the camera.