The temperature mobility degradation influence on the zero temperature coefficient of partially and fully depleted SOI MOSFETs
✍ Scribed by L.M. Camillo; J.A. Martino; E. Simoen; C. Claeys
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 184 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0026-2692
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✦ Synopsis
The zero temperature coefficient (ZTC) is investigated experimentally in partially (PD) and fully depleted (FD) SOI MOSFET fabricated in a 0.13 mm SOI CMOS technology. A simple model to study the behavior of the gate voltage at ZTC (V ZTC ) is proposed in the linear and the saturation region. The influence of the temperature mobility degradation on V ZTC is analyzed for PD and FD devices. Experimental results show that the temperature mobility degradation is larger in FD than in PD devices, which is responsible for the V ZTC decrement observed in FD instead of the increment observed in PD devices when the temperature increases. The analysis takes into account temperature dependence model parameters such as threshold voltage and mobility. The analytical predictions are in very close agreement with experimental results in spite of the simplification used for the V ZTC model as a function of temperature in the linear and the saturation region.