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Physics-based Compact Model for Multi-channel AlGaN/GaN Schottky Barrier Diodes

2024· article· en· W4400449960 on OpenAlexaff
Yijing Feng, Ryan Fang, Ming Xiao, Johan Alant, Jessica X. Chong, Han Wang, Yuhao Zhang, Ujwal Radhakrishna, Lan Wei

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldPhysics and Astronomy
TopicGaN-based semiconductor devices and materials
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsOptoelectronicsSchottky barrierMaterials scienceSchottky diodeGallium nitrideDiodeWide-bandgap semiconductorChannel (broadcasting)Metal–semiconductor junctionElectronic engineeringEngineering physicsComputer sciencePhysicsComputer networkNanotechnologyEngineeringLayer (electronics)

Abstract

fetched live from OpenAlex

This paper showcases a simple yet comprehensive compact model for multichannel AlGaN/GaN Schottky-barrier diode (SBD) with a p-GaN RESURF layer. Model formulation, including equivalent circuit, key equations, and parameter assign-ment, are explained in details, together with parameter extraction flow. The model correctly reflects the device physics in forward-bias, reverse-bias and breakdown conditions, capturing critical behaviors associated with multi-channel turn-on and RESURF effects from the p-GaN layer. Good accuracy, scalability, and computation robustness are validated via: IV, CV, breakdown simulations. The physics-based model can also be used as a tool for technology optimization and scaling projections. This is illustrated via simulations on (1) the impact of barrier/channel thickness on device capacitance and (2) the effect of RESURF-length$(L_{RE\mathrm{S}URF})$on the Baliga Figure-of-Merit (FoM) and area-scaling FoM. With minimum adjustment, the proposed model also serves as a first step towards compact modeling of multi-channel AlGaN/GaN transistor.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0020.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0030.001

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.

Opus teacher head0.056
GPT teacher head0.310
Teacher spread0.254 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations1
Published2024
Admission routes1
Has abstractyes

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