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関連する概念動画

LC Circuits01:21

LC Circuits

An LC circuit consists of an inductor and a capacitor, either in series or parallel. Consider a charged capacitor connected with an inductor in series. Before the switch is closed, all the energy of the circuit is stored in the electric field of the capacitor. When the switch is closed, the capacitor begins to discharge, producing a current in the circuit. The current, in turn, creates a magnetic field in the inductor. Because of the induced emf in the inductor, the current cannot change...
Integrator and Differentiator01:13

Integrator and Differentiator

Op-amp circuits have significant applications in various fields, including automotive engineering. One such application is cruise control systems in cars, where op-amp circuits are integral for maintaining a constant speed. In these systems, op-amps function as both integrators and differentiators.
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
Semiconductors01:22

Semiconductors

There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
Clamper Circuit01:14

Clamper Circuit

A clamper circuit, also known as a DC restorer, represents a specialized variant of the rectifier circuit, notable for its method of taking the output across the diode rather than the capacitor. This configuration lends to several distinctive applications, particularly in handling square wave inputs.
Within this circuit, the diode's orientation prompts the capacitor to charge up to the level of the most negative peak of the input signal. Upon reaching this state, the diode ceases to conduct,...
iChip01:24

iChip

The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...

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関連する実験動画

Updated: Jun 8, 2026

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
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高速で大規模に拡張可能な統合回路

Donglai Zhong1, Can Wu1, Yuanwen Jiang1

  • 1Department of Chemical Engineering, Stanford University, Stanford, CA, USA.

Nature
|March 14, 2024
PubMed
まとめ

研究者達は 皮膚を真似て 高性能で 本質的に伸縮可能な電子機器を開発しました これらの高度な材料は,健康モニタリングや人間と機械のインターフェイスにおけるアプリケーションのために,高い電気性能と大規模な統合を実現します.

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Last Updated: Jun 8, 2026

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科学分野:

  • 材料科学
  • 電気工学
  • ナノテクノロジー

背景:

  • 本質的に伸縮可能な電子機器は 継続的な健康モニタリングや 自律的な治療などの 先進的な応用の可能性を備えています
  • 現在の伸縮性電子は,低電気性能 (無形シリコンレベル),小さな統合スケール,および制限された機能によって制限されています.

研究 の 目的:

  • 本質的に伸縮可能なトランジスタと統合回路を開発し,電気性能,高速運転,大規模統合能力を向上させる.
  • 既存の伸縮可能な電子技術の限界を克服する

主な方法:

  • 材料,製造プロセス,デバイスエンジニアリング,回路設計の革新が採用されました.
  • 高いフィールド効果のモビリティと高い駆動電流を持つ本質的に伸縮可能なトランジスタの開発.
  • 大規模な統合回路と高密度のタクティルセンサ配列の製造.

主要な成果:

  • 100%のストレスの下での平均フィールド効果移動度>20cm2/V·sと100,000トランジスタ/cm2のデバイス密度を持つ本質的に伸縮可能なトランジスタを達成します.
  • 1MHz以上のスイッチング周波数を持つ大型統合回路 (>1,000トランジスタ) が実証され,以前の伸縮型電子機器を上回る.
  • 高密度タクティルセンサ配列 (2500ユニット/cm2) と高速リフレッシュLEDディスプレイを使用した高通量ブレイリー認識システムを開発しました.

結論:

  • 開発された本質的に伸縮可能な電子機器は,硬質基板上の最先端の柔軟な電子機器に匹敵する電気性能を達成します.
  • デバイスの性能の重要な進歩は,さまざまなアプリケーションのための皮膚のような電子の能力を大幅に高めます.
  • この技術により ウェアラブルなセンサーや 人間と機械のインターフェイスや 先進的なヘルスケアソリューションの 可能性が生まれます