Pushpa, N. and Praveen, K. C. and Gnana Prakash, A. P. and Rao, Y. P. Prabhakara and Tripati, Ambuj and Govindaraj, G. and Revannasiddaiah, D. (2010) A comparison of 48MeV Li3+ ion, 100MeV F8+ ion and Co-60 gamma irradiation effect on N-channel MOSFETs. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 613 (2). 280 - 289. ISSN 0168-9002
Full text not available from this repository. (Request a copy)Abstract
N-channel MOSFETs were irradiated by 48MeV Li3+ ions, 100MeV F8+ ions and Co-60 gamma radiation with doses ranging from 100krad to 100Mrad. The threshold voltage (VTH), voltage shift due to interface trapped charge (ΔVNit), voltage shift due to oxide trapped charge (ΔVNot), density of interface trapped charge (ΔNit), density of oxide trapped charge (ΔNot), transconductance (gm), mobility (μ) of electrons in the channel and drain saturation current (ID Sat) were studied as a function of dose. Considerable increase in ΔNit and ΔNot, and decrease in VTH, gm and ID Sat were observed in all the irradiated devices. We correlated the degradation of μ with the ΔNit and the effect of ΔNot is found to be negligible for degrading the μ. The maximum degradation was observed for the devices irradiated with Co-60 gamma radiation when compared with those irradiated with ions, since gamma radiation can generate more trapped charge in field oxide when compared to the high energy ions.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Interface trapped charge, Oxide trapped charge, Threshold voltage, Ion irradiation, MOSFET, Transconductance, Mobility degradation |
| Subjects: | D Physical Science > Physics |
| Divisions: | Department of > Physics |
| Depositing User: | LA manjunath user |
| Date Deposited: | 25 Jul 2019 07:06 |
| Last Modified: | 11 Dec 2019 10:20 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/5533 |
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