Abstract
We study the impact of different nitric oxide (NO) post oxidation annealing (POA) procedures on the on resistance Ron of n-channel MOSFETs and on the threshold voltage shift ∆Vth following positive bias temperature stress (PBTS). All samples were annealed in an NO containing atmosphere at various temperatures and times. A positive stress voltage of 30 V was chosen which corresponds to an electric field of about 4.3 MV/cm. The NO POA causes a decrease in overall ∆Vth for longer NO POA times and higher NO POA temperatures. As opposed to the change in ∆Vth, the device Ron increases with NO POA temperature and time.
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