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Experimental study of total ionizing dose radiation effects on MOS capacitor

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2 Author(s)
Sharashar, K. ; Nat. Center for Radiat. Res. & Technol., Cairo, Egypt ; Kayed, S.

The aim of this paper is to investigate the total ionizing dose (TID) radiation effects on MOS capacitor wafer samples that are locally fabricated for this purpose. The oxide was prepared by a dry-wet-dry oxidation technique at 1000°C using an N-type Si substrate of about 3 Ω/cm. The samples have been exposed to irradiation at different doses from 1 krad(SiO2) up to 1 Mrad(SiO2) using two different gamma sources for high and low radiation rates. A shift in C-V curves, as a flat-band, shifted from 0.3 up to 2.5 V and interface states of irradiated samples increased from 2.45×1012 up to 250×1012 eV-1 cm-2. Shelf annealing effects have also been investigated.

Published in:

Electronic Devices, 2002. (EWAED). The First Egyptian Workshop on Advancements of

Date of Conference:

28 Sept. 2002