Excess fixed charge and surface states in various MIS structures have been successfully removed by the RF annealing technique. Important processing parameters that are pertinent to a successful anneal have been defined. A qualitative model is proposed to describe the annealing mechanisms, and to account for the experimental results. It is thought to be a cooperative effect involving the RF field, the plasma radiation, and the induced wafer temperature.
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:13
,
Issue:
4
)
Date of Publication: Aug 1978