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Field dependent critical trap density for thin gate oxide breakdown

We have found that the total trapped negative charge in a thin gate-oxide at the point of breakdown is a strong function of the stress field. This observation is in direct contrast with previous reports in the literature. The field dependent behavior of total trapped charge leads to the conclusion t...

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Main Authors: Cheung, K.P., Liu, C.T., Chang, C.-P., Colonell, J.I., Lai, W.Y.-C., Liu, R., Miner, J.F., Pai, C.S., Vaidya, H., Clemens, J.T., Hasegawa, E.
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creator Cheung, K.P.
Liu, C.T.
Chang, C.-P.
Colonell, J.I.
Lai, W.Y.-C.
Liu, R.
Miner, J.F.
Pai, C.S.
Vaidya, H.
Clemens, J.T.
Hasegawa, E.
description We have found that the total trapped negative charge in a thin gate-oxide at the point of breakdown is a strong function of the stress field. This observation is in direct contrast with previous reports in the literature. The field dependent behavior of total trapped charge leads to the conclusion that the critical trap density for breakdown is also field dependent. We use field dependent hopping conduction to explain why the critical trap density for breakdown in the percolation model should be field dependent.
doi_str_mv 10.1109/RELPHY.1999.761592
format conference_proceeding
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identifier ISBN: 9780780352209
ispartof 1999 IEEE International Reliability Physics Symposium Proceedings. 37th Annual (Cat. No.99CH36296), 1999, p.52-56
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source IEEE Electronic Library (IEL) Conference Proceedings
subjects Breakdown voltage
Charge carrier processes
Design for quality
Electric breakdown
Electron traps
History
Laboratories
Stress
Testing
Ultra large scale integration
title Field dependent critical trap density for thin gate oxide breakdown
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