Dynamic delay fault testing of high-performance digital circuit in deep submicron technology

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Aggressive technology scaling has been the mainstay of digital CMOS circuit design for the past 30 years. It has resulted in the design of multi-gigahertz integrated circuit (IC) and unprecedented levels of integration. Modern integrated circuits operate at clock frequencies of more than 3 GHz, and their dies contain close to 300 million transistors. Digital IC performance has followed Moore's law, improving annually by 30%. However, ATE performance has improved by only 12% annually. The discrepancy between ATE edge placement accuracy and circuit under test (CUT) performance1 will make at-speed logic testing increasingly difficult for future deep-submicron technologies (DSM).