A novel test module for interconnect diagnosis enhancement and quality improvement in daisy chain test

A novel test module (NTM) for daisy chain test is proposed. In the daisy chain test, the defected chains and components can be easily observed and repaired rapidly by the proposed technology. Besides, the cost of proposed module is much cheaper than the price of tester improvement. Finally, the measured results of the test with NTM are also proposed for verification. The proposed module can save not only debugging time but also the cost in the daisy chain test.