Patent ID: 9222966
Filing Date: 2015-12-29
Classification: G01R

Abstract:
1. A test apparatus for testing a device under test, comprising: a plurality of current sources that supply the device under test with current; a dummy load that has an electrical characteristic corresponding to an electrical characteristic of the device under test; and a switching section that switches whether each of the current sources is connected to the dummy load or the device under test, wherein, after connecting two or more selected ones of the current sources to the dummy load depending on a current that is expected to be applied to the device under test, the switching section disconnects the two or more selected current sources from the dummy load and connects the two or more selected current sources to the device under test when the voltage applied to the dummy load reaches a voltage within a predetermined range, and the switching section disconnects the two or more selected current sources from the dummy load after having connected the two or more selected current sources to the device under test.