A low energy SRAM-based physically unclonable function primitive in 28 nm CMOS
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
A 0.6 V low energy 64 kb SRAM-based PUF macro protected with a multi-bit error correcting circuit is fabricated in a 28 nm LP-CMOS process. The static noise margin difference (ΔSNM) is proposed as a design-time cell asymmetry metric for characterizing bitcell PUF response reproducibility. The ΔSNM is then used in conjunction with a Pelgrom's model based design methodology to compare a set of eight 6T SRAM bitcells designed to operate over a 0.6 V to 1.0 V voltage range. Majority voting and data integrity masking is used to reduce the error correction parity-bit overhead by 65% to yield 100% reproducible PUF responses. Finally, measurement results over a set of five test chips show an average active access energy of 0.045 fJ/bit-cycle.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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