High speed integrated circuit DUT(Device Under Test) board which quality determinates the accuracy of the test result plays an important role in integrated circuit test system. With the increase of integrated circuit speed, signal integrity has become one of the problems must be concerned in high-speed DUT board design. The problem caused by some factors such as parameters of integrated circuit,layout of DUT board and high speed signal traces,etc ,can lead to the unstable state during the test of th...