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関連する概念動画

Bipolar Junction Transistor01:22

Bipolar Junction Transistor

836
Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
836
Field Effect Transistor01:29

Field Effect Transistor

500
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
500
Switching of BJT01:22

Switching of BJT

476
Switching behavior in Bipolar Junction Transistors (BJTs) is a fundamental aspect utilized in various electronic circuits, particularly for digital logic applications like switches and amplifiers. In a typical switching circuit, a BJT alternates between cut-off and saturation modes, corresponding to the "off" and "on" states, respectively, thus behaving like an ideal switch.
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are...
476
Modes of Operations of BJT01:21

Modes of Operations of BJT

1.3K
A Bipolar Junction Transistor (BJT) is a versatile component in electronics, functioning in four distinct modes based on the biasing of its junctions: active, saturation, cut-off, and inverted modes.
Active Mode: The most common mode for amplification, the active mode features a forward-biased emitter-base junction and a reverse-biased base-collector junction. This setup enables electrons to be injected from the emitter to the base while blocking the majority carriers at the collector. The...
1.3K
Configurations of BJT01:16

Configurations of BJT

559
Bipolar Junction Transistors (BJTs) are categorized into various types based on their configurations, each with distinct characteristics and applications. The configurations are primarily differentiated by which terminal—base, emitter, or collector—is common to both the input and output circuits.
The common base configuration is noted for its high voltage gain, positioning it as an ideal choice for single-stage amplifier circuits, such as microphone pre-amplifiers. A notable...
559
BJT Amplifiers01:14

BJT Amplifiers

537
Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
537

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バリスティック二次元 InSe トランジスタ

Jianfeng Jiang1, Lin Xu1, Chenguang Qiu2

  • 1Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing, China.

Nature
|March 23, 2023
PubMed
まとめ
この要約は機械生成です。

二次元のインジウムセレニドフィールド効果トランジスタ (FET) は,シリコンの限界を超えて,記録的な性能を達成します. これらの新しい2D FETは,より低い電圧で動作し,将来の電子機器に優れた特性を提供します.

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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
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All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
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Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating
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科学分野:

  • 材料科学
  • ナノテクノロジー
  • 半導体物理学

背景:

  • シリコンベースの金属酸化半導体 (MOS) フィールドエフェクトトランジスタ (FET) は,ゲート長が12 nm近く,供給電圧が0.6 V以下には低下しないというスケーリングの制限に直面しています.
  • 二次元 (2D) レイヤード半導体は小型化の代替手段として検討されているが,現在のシリコンFETの性能を上回るものは存在しない.
  • デバイスとシステムの国際ロードマップ (IRDS) は,シリコンのスケール終了の課題を克服するために先進的な材料の必要性を強調しています.

研究 の 目的:

  • 次世代FETのチャネル材料としての2Dインジウムセレニド (InSe) の可能性を調査する.
  • 高性能のInSe FETを改良した製造方法を開発する.
  • 最先端のシリコンFETの性能を上回るInSe FETを実証する.

主な方法:

  • 2D InSeをチャネル材料として使用したFETの製造.
  • イットリウム・ドーピングによるフェーズ・トランジション方法の開発
  • InSe FETを10 nmのチャンネル長にスケーリングし,その電気的性質の特徴づけ.

主要な成果:

  • InSe FETで記録的な6 mS μm−1と高室温弾道比率83%を達成した.
  • シリコンの予測限界を超えた0.5Vの低供給電圧で実証された動作.
  • 75mV/十年と22mV/VのDIBLの低いサブスリーフスイング (SS) でショートチャネル効果をうまく抑制しました.
  • 10nm弾道的なInSe FETで62 Ω μmの低接触抵抗を抽出し,エネルギー遅延産物 (EDP) を著しく低下させた.

結論:

  • 2D InSeは,シリコンFETの性能を上回る有望なチャネル材料です.
  • 開発された製造技術は,優れた電気特性を持つ高性能でスケールダウンされた InSe FET を可能にします.
  • InSe FETは,シリコンスケーリングの限界を克服し,よりエネルギー効率の良い統合電子機器を可能にします.