Characterization of Laser-Induced Photoexcitation Effect on a Surrounding CMOS Ring Oscillator
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Bibliographic record
Abstract
The use of laser trimming techniques with conventional CMOS processes requires thorough understanding of the electrical consequences of a laser pulse on surrounding sensitive devices. A study on the laser-induced photoexcitation effect on a ring-oscillator has been performed. Experiments are performed with a laser beam focused on a diffusible resistor made of a n-doped gap between two highly p-doped regions. An in-situ characterization technique has been used to get the laser's power profile under dielectric layers. A novel frequency-monitoring circuit is presented. It has been manufactured in 0.18 /spl mu/m CMOS technology and experimental results are presented. It has been measured that the laser causes a 28% change of the oscillating frequency. An approach to model the photoexcitation effect using combined electrical and physical simulations is presented.
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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.
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