Patent ID: 6850052
Filing Date: 2005-02-01
Classification: G01R

Abstract:
1. A probing method comprising the steps of: horizontally moving a main chuck in a first horizontal direction and in a second horizontal direction perpendicular to the first horizontal direction with respect to a probe card having probes and held on an upper portion of a prober chamber to align a substrate mounted on a surface of the main chuck with the probes; raising the main chuck towards the probes; setting electrodes of the substrate in contact with the probes; and testing electrical characteristics of the substrate by transferring a measurement signal with respect to the substrate via the probes, wherein said raising and setting steps are effected by raising/lowering said main chuck along an extending line dropping from a substantially central position of said probe card with a main chuck elevating mechanism which is fixed at a position directly below the substantially central position of said probe card and supporting and raising/lowering said main chuck at the position directly below the substantially central position of said probe card.