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Proceedings 2017, 1(2), 8; doi:10.3390/ecsa-3-C001

Performance of TAHOS Device as Nonvolatile TID Radiation Sensor

1
Electronic Engineering Department, Southern Taiwan University of Science and Technology, 1, Nan-Tai Street, Yungkang District, Tainan 71005, Taiwan
2
Department of Opto-Electronic System Engineering, Minghsin University of Science and Technology, Xinxing Rd, 1, Xinfeng 30401, Taiwan
Presented at the 3rd International Electronic Conference on Sensors and Applications, 15–30 November 2016; Available online: https://sciforum.net/conference/ecsa-3.
*
Author to whom correspondence should be addressed.
Published: 14 November 2016
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Abstract

The titanium nitride–aluminum oxide–hafnium oxide–silicon oxide–silicon device using aluminum oxide as charge-blocking layer (hereafter TAHOS) could be a candidate for nonvolatile total ionization dose (TID) radiation sensor. In this paper, gamma radiation induces a significant decrease in the threshold voltage VT of TAHOS and the radiation-induced VT decrease on TAHOS is nearly 1.3 times of that on a standard titanium nitride–silicon oxide–hafnium oxide–silicon oxide–silicon device (hereafter TOHOS) device after 5 Mrad TID gamma irradiation. The change in VT of TAHOS after gamma irradiation also has a strong correlation to TID up to 5 Mrad gamma irradiation. Moreover, the VT 10yrs retention characteristic of TAHOS device can be markedly improved and is nearly 13% better than that of a standard TOHOS device after 5 Mrad gamma irradiation. Therefore, the TAHOS device in this study has demonstrated the possibility using TAHOS for high TID response and good TID data retention for non-volatile TID radiation sensing.
Keywords: high k; sensor; radiation; SONOS; SOHOS; MOS; TID high k; sensor; radiation; SONOS; SOHOS; MOS; TID
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jong, F.-C.; Hsieh, W.-C. Performance of TAHOS Device as Nonvolatile TID Radiation Sensor. Proceedings 2017, 1, 8.

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