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関連する概念動画

Semiconductors01:22

Semiconductors

655
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...
655
Non-ohmic Devices00:51

Non-ohmic Devices

1.1K
In most substances, the current flow is proportional to the voltage applied to it. A simple relationship between the values of current, voltage, and resistance is known as Ohm's law. Nonohmic devices do not exhibit a linear relationship between voltage and current. One such device is the semiconducting circuit element known as a diode. A diode is a circuit device that allows current flow in only one direction.
Consider a simple circuit consisting of a battery, a diode, and a resistor. A...
1.1K
Types of Semiconductors01:20

Types of Semiconductors

551
Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
551
Mechanisms of Membrane-bending01:15

Mechanisms of Membrane-bending

2.6K
The living membranes are flexible due to their fluid mosaic nature; however, their bending into different shapes is an active process regulated by specific lipids and proteins. The membrane bending can be transient as seen in vesicles or stable for a long time as in microvilli. Cells regulate the size, location, and duration of the membrane curvature.
Membrane bending can happen due to intrinsic changes in lipid composition or extrinsic association with different proteins. The proteins involved...
2.6K
Diode: Reverse bias01:14

Diode: Reverse bias

602
A diode is reverse-biased when the positive terminal of an external voltage source is connected to the n-type material and the negative terminal to the p-type material. This configuration opposes the natural direction of current flow through the diode, effectively increasing the width of the depletion region and the barrier potential. The reverse bias condition produces a minimal leakage current, primarily due to minority charge carriers. This leakage becomes significant when the reverse...
602
Clamper Circuit01:14

Clamper Circuit

373
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...
373

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Updated: Jun 12, 2025

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
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A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

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折りたたみ可能な非シリコンRISC-Vマイクロプロセッサ

Emre Ozer1, Jedrzej Kufel2, Shvetank Prakash2,3

  • 1Pragmatic Semiconductor, Cambridge, UK. eozer@pragmaticsemi.com.

Nature
|September 25, 2024
PubMed
まとめ
この要約は機械生成です。

研究者は,オープンRISC-Vアーキテクチャとインジウムガリウム亜鉛酸化物トランジスタを使用した柔軟で超低コストのマイクロプロセッサFlex-RVを開発しました. この折り畳み可能なチップは 機械学習の加速を統合し ウェアラブルや医療における アクセシブルなコンピューティングの道を切り開きます

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Scalable Fabrication of Stretchable, Dual Channel, Microfluidic Organ Chips
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Scalable Fabrication of Stretchable, Dual Channel, Microfluidic Organ Chips

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The Microfluidic Probe: Operation and Use for Localized Surface Processing
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関連する実験動画

Last Updated: Jun 12, 2025

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

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科学分野:

  • 材料科学
  • コンピュータ工学
  • 電気工学

背景:

  • 半導体は科学研究と接続性にとって不可欠です
  • 未来のハードウェアの進歩は 量子コンピューティング,人工知能,エッジコンピューティングに 影響を与えるでしょう
  • オープンハードウェアは教育,研究,産業における協力を促進します.

研究 の 目的:

  • Flex-RVを紹介します 超低コストで柔軟な32ビットのマイクロプロセッサです
  • 機械学習 (ML) のハードウェア加速をマイクロプロセッサに統合する.
  • ML ワークロードの RISC-V 命令セットの拡張のための新しい命令を実証する.

主な方法:

  • 柔軟なポリミド基板にインジウムガリウム亜鉛酸化物の薄膜トランジスタを使用した32ビットマイクロプロセッサの製造.
  • プログラム可能なMLハードウェアアクセラレータとカスタムRISC-V命令の統合
  • 柔軟な印刷回路板で平らで曲がった状態での機能と性能をテストする.

主要な成果:

  • Flex-RVマイクロプロセッサは60kHzで動作し,消費電力は6mW未満です.
  • 性能の変動は最小で (平均4.3%) 平らな条件と緊密な条件の両方で機能性が実証されています.
  • 柔軟なマイクロプロセッサでプログラムを実行し,その柔軟性を示します.

結論:

  • Flex-RVの先駆者 サブドル オープンスタンダード 非シリコン32ビットのマイクロプロセッサ
  • この開発はコンピューティングへのアクセスを民主化し,新興アプリケーションを可能にします.
  • 潜在的アプリケーションにはウェアラブル,ヘルスケアデバイス,スマートパッケージが含まれます.