Enhanced Degradation in Power MOSFET Devices Due to Heavy Ion Irradiation
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Bibliographic record
Abstract
Large, unexpected shifts in the current-voltage (IV) characteristics of commercial power MOSFETs irradiated with heavy ions have been observed. The shifts can be more than sixty-five times larger than the shifts resulting from total dose irradiation with gamma rays or electrons, and are shown to strongly depend on both the irradiation bias and the ion linear energy transfer (LET). These large shifts are a significant concern for devices intended to operate in low power space applications because it is shown that they can lead to off-state leakage currents greater than 1 A. The data are consistent with the formation of parasitic transistors resulting from the microdose deposited in the gate oxides of these devices by the heavy ions. These results have significant implications for hardness assurance testing of MOS devices for use in space.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it