Boosting the Radiation Hardness and Higher Reestablishing Pre-Rad Conditions by Using OCTO Layout Style for MOSFETs

de Souza Fino, Leonardo Navarenho;Aparecida Guazzelli da Silveira, Marcilei;Renaux, Christian;Flandre, Denis;Pinillos Gimenez, Salvador
(2014) 29th Symposium on Microelectronics Technology and Devices (SBMicro 2014) — Location: Aracaju (Brazil) (2.September.2014)

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Authors
  • de Souza Fino, Leonardo Navarenhocentro Universitario da FEI, Brazil
    Author
  • Aparecida Guazzelli da Silveira, Marcileicentro Universitario da FEI, Brazil
    Author
  • Author
  • Author
  • Pinillos Gimenez, Salvadorcentro Universitario da FEI, Brazil
    Author
Abstract
This manuscript has the objective to perform an experimental comparative analysis of the total ionizing dose influence in the Silicon-On-Insulator Metal-Oxide Semiconductor Field Effect Transistor implemented with the octagonal gate shape (OCTO) and the standard one (rectangular gate shape) counterpart, after a X-ray radiation exposure. The back-gate bias technique is applied in these devices to reestablish the threshold voltage and subthreshold slope that were degraded by the ionizing radiation effects. Since the octagonal layout style maintains a better electrical performance after radiation, a smaller back-gate bias to recover the pre-rad operation is required in comparison to the conventional counterpart. This is mainly because the parasitic transistors in the bird's beak region are practically deactivated by the particular octagonal gate geometry.
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Citations

de Souza Fino, L. N., Aparecida Guazzelli da Silveira, M., Renaux, C., Flandre, D., & Pinillos Gimenez, S. (2014). Boosting the Radiation Hardness and Higher Reestablishing Pre-Rad Conditions by Using OCTO Layout Style for MOSFETs. Proceedings of SBMicro 2014, 1-8. https://doi.org/10.1109/SBMicro.2014.6940133