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We report effects for up to 100 Mrad () gamma-ray exposure on polycrystalline ZnO thin film transistors (TFTs) deposited by two different techniques. The radiation related TFT changes, either with or without electrical bias during irradiation, are primarily a negative shift and a smaller shift ( and ...
Radiation tolerance is of interest in electronic applications such as radiation sensors, nuclear reactors, x-ray imagers, and high-energy particle accelerators. While properly designed Si MOSFETS are usefully radiation resistant, most thin-film transistors (TFTs), including polysilicon and a-Si:H, are severely degraded by relatively low irradiation dose (typically <1 Mrad) [1, 2]. We previously...
The radiation tolerance of electronic devices and circuits is of interest for space and some other harsh environment applications. Properly designed deep submicron gate length Si MOSFETs can have small threshold voltage shift and leakage increase for doses of 100 kGy (10 Mrad) or even larger, however polysilicon thin film transistors (TFTs) show significant changes at much lower dose (<; 1 kGy)...
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