Novel physics-based tool-prototype for electromigration assessment in commercial-grade power delivery networks
Why this work is in the frame
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Bibliographic record
Abstract
A recently developed novel methodology for electromigration (EM) failure assessment in power/ground grids of integrated circuits is employed in the electronic design automation tool prototype. The tool performs the analysis of stress evolution in interconnect trees for detecting EM-induced voiding locations and tracks resistance increase in the voided wires based on a physics-based model of voiding kinetics. Increased resistances of the branches of power/ground networks lead to a voltage drop increase in grid nodes. The instance in time when a designer-specified voltage-drop threshold is reached defines the EM-induced time-to-failure. Monte-Carlo simulation, performed around the core engine that simulates the stress over time using randomly generated atomic diffusivities and critical stress values, leads to the mean-time-to-failure of the grid, along with voiding probabilities of the interconnect branches.
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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 | 0.003 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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