Unique measurement to monitor the gate oxide lifetime indicator, case studies

Previous works (Gagnard and Bonnaud, Microelectron. Reliability vol. 39, pp. 75-763, 1999, and Proc. SPIE vol. 4182, pp. 142-50, 2000) demonstrated the possibility of realization of the gate oxide lifetime by a unique measurement based on leakage current. This indicator, easy to implement and able to decrease the test time, can be included in the routine of parametric tests. This work confirms the validity of this indicator and presents case studies related to BCD technology.