Green Channel Effect of Cu Nanotwin Enhanced Silver Sintered Die Bonding to Produce SiC Power Modules with Low Porosity and High Strength
Bibliographic record
Abstract
Silver sintered die bonding of SiC/Cr/nt-Cu chips with DBC ceramic substrates at 250 °C for 60 min with a pressure of 15 MPa achieved significantly reduction of porosity from 12.6 % to 4.4 % and increase of bonding strength from 24.3 MPa to 42.8 MPa under identical conditions in comparison to that of conventional SiC/Cr/coarse grained Cu metallized SiC chips.The sputtered nanotwinned Cu thin film possessed a high density (111) orientation of 91.2%, in contrast to a low proportion about 20% for the conventional coarse-grained Cu film.Interfacial cross-sectional analyses and fractography after shear tests reveal the beneficial effects of highly (111)-oriented nanotwinned Cu structure on Ag sintered die bonding, reducing delamination between interfaces compared to conventional Cu grain structures.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".