Patent ID: 8344744
Filing Date: 2013-01-01
Classification: G01R

Abstract:
1. Arrangement for testing a DUT on a semiconductor substrate, comprising: a chuck having a support surface for receiving a semiconductor substrate to be tested, the support surface being at least in sections electrically conductive to connect the support surface to a certain electrical potential, or for electrically connecting the DUT, an electromagnetic shielding housing enclosing at least the chuck; at least one positioning device for positioning the chuck, a signal preamplifier arranged inside the housing adjacent to the chuck and having a signal port facing the chuck and electrically connected with the support surface, the signal preamplifier being moved together with the chuck by the at least one positioning device in a way that holds constant position of the signal preamplifier relative to the chuck during chuck positioning, and a measurement unit outside the housing, the measurement unit being connected with the signal preamplifier via a measurement cable.