Double-gated microtip emitters for brighter field-emission displays
Bibliographic record
Abstract
Reducing the aperture of the beams emitted by microtips is important to increase the luminance of field-emission displays. Double-gated microtip emitters have been fabricated where the second gate is used to focus the beam emitted by the tip under the action of the attracting field produced by the first gate. The first gate is designed in a volcano shape to shield the apex of the tip from the second gate that is recessed under the level of the first one. This is rendered possible by using a thin rf sputtered SiO2 layer with very good dielectric properties between the two gates. The beam aperture is reduced from 25° to 7° when the second gate is biased at a voltage 15 V lower than the tip. No reduction in emitted current is observed when the second gate is biased at that voltage, which results in an eightfold increase in current density.
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How this classification was reachedexpand
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 | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".