Time delay measurement methods for integrated transmission lines and high speed cell characterization
Bibliographic record
Abstract
In high speed integrated circuits, the time delays on interconnects become critical. An approximate solution based on capacitive and RC models for simulation is often not appropriate to describe critical paths where delays under 100 ps are to be considered. In such cases, long interconnections should be considered as transmission lines placed over a highly dispersive material. We developed new models for accurate simulation of interconnect lines on semiconductor substrate, and this paper deals with an experimental method to validate such models under real conditions. This paper presents new methods to measure the delays between two interconnected points, where the finite size of the buffer and transmission line parameters are considered. The proposed method was implemented in a CMOS demonstrator integrated circuit based on a sea-of-gate structure. This allows one to study various interconnection configurations which aim at improving the propagation of high speed signals The method can also be extended to on chip dynamic characterization of various complex cells operating at high speed.
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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) | 0.001 | 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 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".