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Record W4234862172 · doi:10.1017/cbo9780511840685.013

Transistor capacitances

2010· book-chapter· en· W4234862172 on OpenAlexaff
D.L. Pulfrey

Bibliographic record

VenueCambridge University Press eBooks · 2010
Typebook-chapter
Languageen
FieldEngineering
TopicLow-power high-performance VLSI design
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsTransistorCapacitanceComputer scienceElectrical engineeringElectronic engineeringMultiple-emitter transistorOptical transistorEngineeringPhysicsVoltageElectrode

Abstract

fetched live from OpenAlex

The capacitance of a transistor is a crucial consideration when designing devices for applications in the commercially and societally important areas of digital logic, high-frequency signal processing, and memory. Accordingly, as a pre-cursor to the subsequent chapters on transistors suited to these applications, transistor capacitance is given a thorough treatment in this chapter of its own. The approach taken presents capacitance in a general way that can be applied to all transistors. The usual practice is to treat capacitance in an ad hoc manner, sometimes involving charges of opposite polarity, as in junction capacitance, and sometimes considering just one polarity of charge, as in storage capacitance, for example. In fact, the origin of these two capacitances is the same: in the case of the emitter/base capacitance, for example, it is the change in charge within the device due to electrons that have entered from the emitter to set-up a new steady-state charge profile in the transistor in response to a change in base potential. This fact is recognized here, and provides a view of capacitance that is both physically based and intuitively appealing. Our approach is based on that of Tsividis for MOSFETs, and leads naturally to a double-subscripted specification of capacitance in all types of transistor, e.g., C EB or C SG . Thus, a 3×3 capacitance matrix captures all the capacitive elements of a three-terminal device, and allows for non-reciprocity.

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)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.057
Threshold uncertainty score0.192

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.002
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.002
Science and technology studies0.0010.001
Scholarly communication0.0030.004
Open science0.0020.001
Research integrity0.0020.002
Insufficient payload (model declined to judge)0.0570.027

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 head0.012
GPT teacher head0.153
Teacher spread0.141 · 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 designNot applicable
Domainnot available
GenreOther

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".

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Citations0
Published2010
Admission routes1
Has abstractyes

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