Analysis on the Effect of Laval Microchannel Structure in Si Interposer for GaN HEMTs Cooling
Bibliographic record
Abstract
The microfluid cooling is widely used in the thermal management for high power integration in 3D Si RF microsystem. The simple and efficient microfluid structure is essential in large area cooling for the module with multiple active devices integrated on silicon. A novel Laval microchannel structure was proposed in this paper, and it was simple to design and easy for process. The thermal and hydraulic characteristics of Laval microchannel were investigated and compared with the conventional straight microchannel and 2 kinds of common serpentine microchannels using FEM analysis. The results indicated that Laval microchannel had low flow resistance to maintain high pumping power and achieved the best cooling performance among different microchannel structures. And Laval structure can be effective to keep junction temperature below 150 °C which can provide the sufficient condition for GaN HEMTs device operating with high efficiency and good linearity. It presented remarkable cooling performance for GaN HEMTs cooling integrated on Si, showing excellent candidate structure for large area cooling in 3D Si RF microsystem.
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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 | 0.000 |
| 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 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".