Patent ID: 7772862
Filing Date: 2010-08-10
Classification: G01R

Abstract:
1. An alignment method for use in implementation of electric characteristic inspection of an object to be inspected via electric contact between the object disposed on a movable mounting table and probes, the alignment method being performed to align the object with the probes by using a first imaging unit movably arranged above the mounting table to capture an image of the object, a second imaging unit mounted to the mounting table to capture an image of the probes, and a tip position detecting device mounted to the mounting table to detect tips of the probes, the alignment method comprising: detecting tip positions of the probes by using the tip position detecting device; detecting the tip positions of the probes, which have been detected by the tip position detecting device, by using the second imaging unit; transferring needle marks of the probes onto a soft member provided at the tip position detecting device by allowing the probes to come into contact with the soft member; detecting the needle marks of the probes formed on the soft member by using the first imaging unit; and detecting inspection electrodes of the object corresponding to the probes by using the first imaging unit.