Patent ID: 8717053

Claim:
A DC-AC probe card having probe needles for testing a DUT, said probe card comprising: a first conductor pair including a first conductor and a second conductor, said first and second conductors each having a distal end and a proximal end, said first conductor distal end being connected to a first probe needle and said first and second conductor proximal ends being operable to connect to first test instrumentation; a second conductor pair including a third conductor and a fourth conductor, said third and fourth conductors each having a distal end and a proximal end, said third conductor distal end being connected to a second probe needle and said third and fourth conductor proximal ends being operable to connect to second test instrumentation; and a coupling circuit, said coupling circuit being operable to couple said second conductor distal end to said fourth conductor distal end for AC test measurements and to decouple said second conductor distal end from said fourth conductor distal end for DC test measurements.