Patent ID: 9329222
Filing Date: 2016-05-03
CPC Classification: G01R,G11C

Claim Text:
1. A test device of a semiconductor device for testing a semiconductor device having a plurality of interface pads, comprising: a plurality of coupling units, each configured to be coupled to a corresponding one of the plurality of interface pads; a channel coupled to the plurality of coupling units, wherein the plurality of coupling units are electrically coupled to the channel at a single common node in parallel; a voltage generating unit configured to generate a test voltage to be applied to the plurality of coupling units through the single common node of the channel; and a current measuring unit configured to measure a current that flows on the channel through the single common node from the plurality of coupling units in response to the test voltage, wherein, as a number of the plurality of coupling units coupled to the plurality of interface pads is increased and a coupling strength between the plurality of coupling units and the plurality of interface pads is increased, the current which flows on the channel in response to the test voltage is increased.