Patent ID: 7332918
Filing Date: 2008-02-19
Classification: G01R

Abstract:
1. A prober for testing a plurality of objects to be tested which are arranged on a wafer-like substrate, comprising: a prober chamber; a stage base arranged in the prober chamber; a Z stage arranged on the stage base, the Z stage including a Z stage elevating mechanism to vertically move the Z stage; an X-Y stage arranged on the Z stage, the X-Y stage forming a first frame structure and having a first space at the center thereof, the X-Y stage including an X-Y driving mechanism to move the X-Y stage at least in the X and Y directions; a substrate fixing mechanism arranged on the X-Y stage, the substrate fixing mechanism forming a second frame structure and having a second space, at the center thereof, which is continuous to the first space; a probe card arranged in the prober chamber to oppose the wafer-like substrate and having a plurality of probes; a probing stage elevating mechanism fixed on the Z stage; and a probing stage attached to the probing stage elevating mechanism and arranged in the first space, wherein: