Mechanism Analysis of Off-Leakage Current in an LDD Poly-Si TFT Using Activation Energy
In: IEEE electron device letters, Jg. 32 (2011), Heft 6, S. 764-766
Online
academicJournal
- print, 16 ref
Zugriff:
We have analyzed the mechanism of off-leakage current in an lightly doped drain (LDD) poly-Si thin-film transistor by investigating the activation energy Ea. It is found that Ea decreases as the gate and drain voltages increase. We have also discussed the mechanism using a device simulator. It is found that a hole channel is lightly formed in the LDD region, and a pseudo p-n junction appears at the junction between the LDD and drain regions. The aforementioned experimental behavior of Ea is because the electric field increases there. These results suggest that the off-leakage current is caused by the phonon-assisted tunneling with Poole-Frenkel effect at the junction between the LDD and drain regions.
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Mechanism Analysis of Off-Leakage Current in an LDD Poly-Si TFT Using Activation Energy
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Autor/in / Beteiligte Person: | NAKASHIMA, Akihiro ; KIMURA, Mutsumi |
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Zeitschrift: | IEEE electron device letters, Jg. 32 (2011), Heft 6, S. 764-766 |
Veröffentlichung: | New York, NY: Institute of Electrical and Electronics Engineers, 2011 |
Medientyp: | academicJournal |
Umfang: | print, 16 ref |
ISSN: | 0741-3106 (print) |
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