Normally-off AlGaN/GaN high electron mobility transistors on Si substrate with selective barrier regrowth in ohmic regions
Why this work is in the frame
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Bibliographic record
Abstract
Abstract In this paper, we report the fabrication of a normally-off AlGaN/GaN high electron mobility transistor (HEMT) using an ultra-thin AlGaN barrier layer structure on Si (111) substrate. Additional AlGaN layers were selectively regrown only on the ohmic contact areas. The fabricated device exhibits a positive threshold voltage of 0.3 V, a maximum drain output current of 753 mA mm −1 at gate voltage of +4 V, and low gate leakage of 1.2 × 10 −7 A mm −1 . The selective area growth method shows a promising way to achieve normally-off GaN based HEMTs with very good performance.
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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 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| 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