Synthesis with Glucose Reduction Method and Low Temperature Sintering of Ag-Cu Alloy Nanoparticle Pastes for Electronic Packaging
Why this work is in the frame
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Bibliographic record
Abstract
The metallic nanoparticle paste is receiving great interests recently because it is a potential interconnect material which can perform joining at low temperature and serves at high temperature. The nano-Ag paste and nano-Cu paste have been the hot areas of research, whereas the high cost and low resistance of electrochemical migration of the former and the relatively low anti-oxidation property of the latter limit their applications. In this study, Ag-Cu alloy nanoparticles with the size of 20–50 nm were synthesized with glucose as the reducing agent and NaOH as accelerator. The Ag-Cu nanoparticle paste showed no oxidation after sintering up to 350°C in the air, indicating that the antioxidant capacity was superior to that of the mechanically mixed Ag nanoparticles and Cu nanoparticles. In addition, the electrochemical migration resistance of the sintered Ag-Cu alloy pastes was better than that of the Ag nanoparticle paste. This paste can be used to effectively bond silver-plated copper bulks with maximum shear strength of 35 MPa.
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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