Journal ArticleDOI
Characteristics of the Surface‐State Charge (Qss) of Thermally Oxidized Silicon
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In this paper, the surface state charge associated with thermally oxidized silicon has been studied experimentally using MOS structures and the results indicate that the surface-state charge can be reproducibly controlled over a range 1010-1012 cm -2, and it is an intrinsic property of the silicon dioxide-silicon system.Abstract:
The nature of the surface-state charge (Qss) associated with thermally oxidized silicon has been studied experimentally using MOS structures. The effects of oxidation conditions, silicon orientation, annealing treatments, oxide thickness, and electric field were examined, as well as the physical location of the surface-state charge. The results indicate that the surface-state charge can be reproducibly controlled over a range 1010-1012 cm -2, and that it is an intrinsic property of the silicon dioxide-silicon system. It appears to be due to an excess silicon species introduced into the oxide layer near the silicon during the oxidation process.read more
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