Patent ID: 7135883
Filing Date: 2006-11-14
Classification: G01R

Abstract:
1. An inspection method for inspecting electrical characteristics of an inspection object by bringing each contact into contact with each of a plurality of electrodes of the inspection object placed on a table, the inspection method comprising: (a) measuring a height of a reference point provided on the table by a length measuring mechanism; (b) measuring a first rise amount taken for raising the reference point from a position of the table when the height of the reference point is measured up to a contact starting point in which the reference point comes into contact with a tip of the contact; (c) measuring a height of the electrode of the inspection object by the length measuring mechanism; (d) obtaining a second rise amount necessary for raising the electrode of the inspection object up to the contact starting point based on the height of the reference point obtained in (a) , the first rise amount up to the contact starting point obtained in (b) and the height of the electrode obtained in (c); (e) bringing the electrode of the inspection object placed on the table into contact with the probe by raising the table only by the second rise amount obtained in (d); and (f) inspecting the electrical characteristics of the inspection object with the electrode and the tip of the contact in contact with each other electrically.