Formation of nanoscale columnar structures in silicon by a maskless reactive ion etching process
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Bibliographic record
Abstract
We describe a maskless reactive ion etching process that employs CF4 gas plasma to create nanoscale structures in silicon. Process conditions are controlled to produce pillars of up to 2μm tall and less than 50nm wide. The contributing mechanisms are discussed based on the trends observed for varying plasma conditions. Higher pressures or lower self-bias voltages result in pyramidal structures. Lower pressure and higher voltage result in needlelike structures that resemble silicon wires. By carefully controlling the automasking process mechanism, columnar silicon structures were reproducibly formed with good uniformity all over the wafer. The regularity of the fabricated structures, process controllability, and process compatibility of dry etching are promising for potential photonic and optoelectronic applications.
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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 | 0.001 | 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