Technological requirements for a lateral SiGe HBT technology including theoretical performance predictions relative to vertical SiGe HBTs
Why this work is in the frame
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Bibliographic record
Abstract
A new class of bipolar transistors, lateral SiGe HBTs, is considered from a theoretical point of view with regard to their feasibility and potential radio frequency (RF)/microwave performance relative to existing vertical SiGe HBT technologies. Using numerical analysis, it is found that the low terminal parasitics of a lateral SiGe HBT structure can provide at least twice the unity power gain frequency f/sub max/ compared to vertical structures for a given minimum lithography. Methods to fabricate a lateral SiGe HBT with superior RF/microwave characteristics compared to existing vertical technologies are explored. Extension of the numerical analysis results using simple scaling rules reveals that it should be possible to fabricate lateral SiGe HBTs with unity power gain frequencies in the neighborhood of 500 GHz operating in the micro-ampere range.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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