A 0.3 pJ/bit 20 Gb/s/Wire Parallel Interface for Die-to-Die Communication
Bibliographic record
Abstract
A high-density low-power parallel I/O for die-to-die communication is presented. The proposed interface includes a low-power transceiver and a high-density low-cost silicon interposer. The link architecture exploits single-sided and capacitive termination, passive equalization in the transmitter, and CMOS logic-style circuits to reduce the power consumption. To achieve a high bump/wire efficiency, single-ended signaling is used. A 4-layer Aluminum silicon interposer is fabricated providing 2.5 mm and 3.5 mm links between prototype transceivers. The transceiver prototype includes 3 transmitters and 3 receivers fabricated in 28 nm STM FD-SOI CMOS technology. The parallel interface operates at 20 Gb/s/wire and 18 Gb/s/wire data rates over the 2.5 mm and 3.5 mm channels with 5.9 and 7.7 dB of loss relative to DC (10.7 and 13.5 dB total loss) at fbit/2 while consuming 0.30 and 0.32 pJ/bit excluding clocking circuits, respectively.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 0.003 |
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 source (direct Gemma or distilled Codex), 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".