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In this paper, we present extensive reliability characterization results for a novel dual gate 45 nm HK+MG technology. BTI, HCI and TDDB degradation modes on the Logic and I/O transistors are studied and excellent reliability is demonstrated. Emphasis is placed on the importance of process optimizations to support robust I/O transistors while maintaining the high performance and reliability of Logic...
Net end-of-life aging prediction under realistic use conditions is the key objective for any product aging model. In this paper, a net degradation model is introduced and effects such as recovery, subsequent degradation, frequency, duty cycle, and recovery bias are evaluated. The high-kappa recovery behavior observed is consistent with SiO2 gate stacks, which allows the use of SiO2 models to predict...
In this paper, bias-temperature instability (BTI) characterization on 45nm high-K + metal-gate (HK+MG) transistors is presented and degradation mechanism is discussed. Transistors with an unoptimized HK film stack in the early development phase exhibited pre-existing traps and large amount of hysteresis that was consistent with literature. The optimized and final HK process demonstrated NMOS and PMOS...
In this paper, we present extensive breakdown results on our 45nm HK+MG technology. Polarity dependent breakdown and SILC degradation mechanisms have been identified and are attributed gate and substrate injection effects. Processing conditions were optimized to achieve comparable TDDB lifetimes on HK+MG structures at 30% higher E-fields than SiON with a reduction in SILC growth. Extensive long-term...
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