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関連する概念動画

Lumber Defects01:23

Lumber Defects

563
Lumber defects, which can affect both the appearance and structural integrity of wood, include a variety of growth and manufacturing flaws. Growth defects such as knots and knotholes occur where branches were once attached to the tree trunk, with knotholes forming when these knots fall out. Other natural defects include decay and insect damage, which compromise the wood's strength and durability.
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
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Field Effect Transistor01:29

Field Effect Transistor

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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...
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Electric Field01:16

Electric Field

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Consider two point charges, each exerting Coulomb force on the other. It is possible to describe the Coulomb interaction via an intermediate step by defining a new physical quantity called the electric field.
In the new picture, imagine that the first charge sets up an electric field independent of all other charges in the universe. When another charge comes in its vicinity, the second charge experiences an electric force depending on the electric field at that point. The source charge does not...
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Magnetic Fields01:27

Magnetic Fields

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A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
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Electromagnetic Fields01:30

Electromagnetic Fields

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Electric fields generated by static charges, often referred to as electrostatic fields, are characteristically different from electric fields created by time-varying magnetic fields. While the former is a conservative field, implying that no net work is done on a test charge if it goes around in a complete loop in the field, the latter is, by definition, not a conservative field; net work is done, and it is proportional to the rate of change of magnetic flux.
However, the observation of...
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Electric Field Inside a Conductor01:20

Electric Field Inside a Conductor

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When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic equilibrium. The resulting charge distribution and its electric field have many interesting properties, which can be investigated with the help of Gauss's law.
Suppose a piece of metal is placed near a positive charge. The free electrons in the metal are attracted to the external positive charge and migrate freely toward that region. This region then...
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関連する実験動画

Updated: Feb 14, 2026

Light Enhanced Hydrofluoric Acid Passivation: A Sensitive Technique for Detecting Bulk Silicon Defects
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BWD-DETR: ライトフィールド・ウェーファー・デフェクト検出のための堅牢なフレームワーク

Ruilou Zhang1,2,3, Xiangji Guo1,2, Yuankang Xu1,2

  • 1Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.

Sensors (Basel, Switzerland)
|February 13, 2026
PubMed
まとめ

この研究は,BWD-DETRを導入し,明るいフィールドイメージングを使用して小さな円盤表面の欠陥を検出するための新しいフレームワークである. この方法は,サブミクロンの欠陥の検出を大幅に改善し,半導体製造における精度を高めます.

キーワード:
明るいフィールドイメージングデフォルト検出 デフォルト検出 デフォルト検出ウェッファー (Wafer) とは,ウェッファー (Wafer) とは,ウェッファーのことです.

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関連する実験動画

Last Updated: Feb 14, 2026

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09:15

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Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
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科学分野:

  • 半導体製造 半導体製造業
  • オプティカル・インスペクション・インスペクション
  • コンピュータビジョン コンピュータビジョン

背景:

  • ライトフィールド光学画像は,ウェーファー欠陥検出の標準です.
  • パターン付きウェファーの小さな粒子の欠陥は,背景のノイズとテクスチャのために困難です.
  • 既存の方法は,サブミクロンの欠陥の検出と位置付けの精度で苦労しています.

研究 の 目的:

  • 明るいフィールドイメージングの下で,ウェーファー表面の欠陥を検出するための高度な検出フレームワークを開発する.
  • 小規模およびサブミクロンの欠陥の検出と位置付けの精度を向上させるため.
  • 現在の明るいフィールドイメージング技術の限界を克服するために.

主な方法:

  • 提案されたBWD-DETRの枠組みは,RT-DETRのベースラインに基づいています.
  • 強化された機能抽出のためのウェーブレットバックボーンの統合.
  • 改善された故障信号処理のためのSMFIとCAS-Fusionモジュールの追加.

主要な成果:

  • 96.56%のAP50と54.94%のAP50:95を明るいフィールドのウェーファー欠陥検出で達成しました.
  • ベースラインより1.64% (AP50) と2.17% (AP50:95) のパフォーマンスの改善が実証されました.
  • マイクロン未満の欠陥の検出能力を成功裏に強化しました.

結論:

  • BWD-DETRフレームワークは,明るいフィールドのウェーファーの欠陥検出に優れた性能を提供します.
  • 提案された方法は,小さな欠陥や複雑な背景によって引き起こされる課題を効果的に解決します.
  • このアプローチは,半導体製造における自動検査を推進する.