Void-Free Room-Temperature Silicon Wafer Direct Bonding Using Sequential Plasma Activation
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Room-temperature Si/Si wafer direct bonding has been performed by an optimized sequential plasma activated bonding process. A shorter O2 reactive ion etching (RIE) plasma (∼10 s) treatment followed by treatment with N2 radicals for 60 s is used for surface activation. The activated wafers are brought into contact in ambient air. After storage at room temperature for 24 h, high bonding strength (∼2.25 J/m2) is achieved without requiring any annealing process. This value is close to the bulk-fracture strength of silicon. Furthermore, no annealing voids are observed at Si/Si interfaces even if the bonded wafer pairs are heated from 200 to 800 °C in subsequent processes. The bonding interfaces and their optical transmittances are also investigated. This void-free, room-temperature bonding technique based on sequential plasma activation is inexpensive and suitable for the microelectromechanical system manufacturing process and wafer-scale packaging.
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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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| 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