Abstract

The effects of boron penetration on device performance and reliability of p +-poly PMOSFETs are investigated extensively with different RTA drive-in conditions. High drive-in temperature causes significant boron-penetration induced mobility degradation in P-MOSFETs, resulting degraded device performance. Boron penetration enhances charge trapping in oxide and interface state generation at Si SiO 2 interfaces under FN stress. Gate oxide reliability and device lifetime in the PMOSFETs due to this degradation are systematically studied.

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