Patent ID: 8680881

Claim:
A test method comprising: connecting an integrated circuit to a test substrate through an interposer, said test substrate being configured to supply electric power and a test pattern signal to said integrated circuit, and said interposer having a probe configured to detect an electric current flowing through an individual terminal of said integrated circuit and a switch connected to said individual terminal in series; inputting and supplying the electric power and said test pattern signal to said integrated circuit through said test substrate after turning off at least one switch connected to an individual terminal for power supply of said integrated circuit; acquiring a processed result processed by said integrated circuit according to said test pattern signal; measuring an electric current flowing through said individual terminal of said integrated circuit; determining whether a current value of the measured electric current is within a preset tolerance, while said integrated circuit is performing processing according to said test pattern signal; determining whether said processed result that is realized by said integrated circuit is correct; and determining that the individual terminal for power supply connected to the switch that is turned off in the inputting step is a terminal that may be removed from said integrated circuit, if it is determined that said processed result is correct in the processed result determining step and if it is determined that the current value of the electric current flowing through the individual terminal for power supply of said integrated circuit is within the preset tolerance in the current value determining step.