A Mismatch-Insensitive Skew Compensation Architecture for Clock Synchronization in 3-D ICs
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Bibliographic record
Abstract
Traditional die-to-die (DTD) clock skew compensation topologies prerequisite matched delay lines or equal through-silicon via (TSV) delays. Unlike previous techniques, the proposed mismatch-insensitive skew compensation architecture can maintain a synchronous clock signal between two dies, while completely eliminating any skew arising from code-dependent mismatch in delay lines or unequal TSV delays. The performance of our design is verified in theory and simulation in light of mismatch/finite resolution of delay lines, clock jitter, phase detector dead zone, TSV delay, and buffer mismatch. Postsynthesis timing verification of this cell-based design was done in a 65-nm CMOS process. Under similar worse case mismatch conditions, the residual skew in the proposed architecture was delimited to 32 ps at 1 GHz, compared with 116 ps for a recent DTD topology, while consuming only 2.1 mW.
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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