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Related Concept Videos

Mutual Inductance01:24

Mutual Inductance

Inductance is the property of a device that tells us how effectively it induces an emf in another device. In other words, it is a physical quantity that expresses the effectiveness of a given device.
When two circuits carrying time-varying currents are close to one another, the magnetic flux through each circuit varies because of the changing current in the other circuit. Consequently, an emf is induced in each circuit by the changing current in the other. Therefore, this type of emf is called...
Inductors01:11

Inductors

An inductor is a passive component built to store energy within its magnetic field. It can be fabricated by coiling a wire around a magnetic core. When current is permitted to flow through this inductor, it is observed that the voltage across the inductor is directly proportional to the time rate of change of the current. Mathematically,
Inductors01:20

Inductors

An inductor, also known as a choke, is a circuit component created to have a specific inductance. Inductors are among the crucial circuit components used in modern electronics, along with resistors and capacitors. They serve as a barrier against changes in a circuit's current. An inductor tends to suppress current changes in an alternating-current circuit that are faster than desired. In a direct-current circuit, an inductor aids in preserving a constant current despite changes in the applied...
MOS Capacitor01:25

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
Series and Parallel Inductors01:17

Series and Parallel Inductors

In electrical circuits, integrating inductors into the toolkit of passive elements requires navigating the intricacies of series and parallel combinations involving these components. Practical circuits often feature configurations of multiple inductors, and understanding how to determine their equivalent inductance is vital.
For a series connection of N inductors, each carrying the same current, applying Kirchhoff's voltage law unveils a crucial relationship. Substituting the expression for...

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Related Experiment Video

Updated: May 28, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
15:25

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

A Double-Layer Parallel MEMS Inductor with Enhanced Current-Carrying Capacity and Thermal Stability.

Xingyu Pi1, Jiao Li1, Hongyu Chen1

  • 1School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China.

Micromachines
|May 27, 2026
PubMed
Summary

This study introduces a novel double-layer parallel (DLP) array microcoil inductor chip. The DLP design significantly enhances energy storage and current capacity for miniaturized electronic circuits.

Keywords:
current-carrying capacitydouble-layer inductormicroelectromechanical system (MEMS)

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Last Updated: May 28, 2026

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
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Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Published on: August 15, 2014

Area of Science:

  • Electrical Engineering
  • Materials Science
  • Microelectronics

Background:

  • Inductor size is critical for electronic circuit miniaturization and thin-film integration.
  • Existing miniaturized inductors struggle with low current capacity and inductance, hindering advanced applications.

Purpose of the Study:

  • To design and verify a novel inductor chip with improved performance for integrated power modules.
  • To address the limitations of current miniaturized inductors in terms of energy storage and current handling.

Main Methods:

  • Development of a double-layer parallel (DLP) array microcoil structure.
  • Experimental verification of the DLP inductor's thermal and electromagnetic performance.

Main Results:

  • The DLP inductor demonstrates superior rated energy storage per unit area compared to single-layer designs.
  • The 4 × 3 DLP array achieved a maximum DC current capacity of 4.25 A.
  • Excellent thermal performance was observed for the DLP inductor.

Conclusions:

  • The DLP array microcoil structure offers a significant advancement for integrated inductor technology.
  • This innovation provides a valuable reference for thermal-electromagnetic co-design in highly reliable integrated power modules.