Wide-temperature range CMOS interface circuits for capacitive MEMS sensors
Bibliographic record
Abstract
Many applications require MEMS sensors to operate over wide temperature range, typically from -55 C to 225 C. It is desirable to place the sensor readout circuits in close proximity to the sensor devices to improve signal-to-noise ratio and system reliability.Therefore, the sensor readout circuits must also be able to function over the same temperature range as the sensor devices.The main challenges for designing CMOS sensor readout circuits working over widetemperature range (especially at the high temperature end) include: 1) increased junction leakage current, 2) reduced carrier mobility, and 3) decreased threshold voltage in MOS transistors.In this thesis, constant-gm biasing and other design techniques are used to mitigate the circuit performance degradation at high temperatures and three readout circuits for capacitive MEMS sensors are developed using standard CMOS process which can operate over wide temperature range from -55 C to 225 C .
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
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".