Related Technologies

We offer comprehensive solutions
that encompass design, assembly, and measurement.

Shin-Etsu Chemical’s solutions for magnetic circuits and magnet assemblies provide everything: from design and manufacturing of magnets, yokes, jigs, and tools; to measuring of the finished products.
We also support the design of magnetic circuit configurations, including the selection of optimum magnet materials based on magnetic field analysis.

Manufacturing Process

1.Analysis/Design

Analysis/Design Technology

We select the magnet material through magnetic field analysis.
Multiple analysis software programs are available, such as those for magnetic field and structural analysis.
We analyze and design magnetic circuits and magnet assemblies.

Analysis Examples

The form of magnetic circuits can vary depending on the strength and distribution of the magnetic field, as well as the method used to access the magnetic field space. Shin-Etsu Chemical analyzes magnetic fields and designs configurations to meet your requirements.

• C-Type Magnet

  

  Generates a magnetic field within the gap, allowing access from three directions.

• For Sputtering

  

  The figure depicts the racetrack type, which can be over 1 m long.

• For Adsorption

  

  The N and S poles are arranged alternately to adsorb magnetic materials.

• Axial Magnetic Field Generation Type

  

  Generates a magnetic field in the axial direction, similar to a solenoid coil.

• Quadrupole Magnet

  

  Magnets are placed on the opposing sides of four pole pieces to generate a quadrupole magnetic field.

• Halbach-Type Quadrupole Magnet

  

  Generates a quadrupole magnetic field using magnets only without pole pieces.

Halbach Array

Halbach array is a type of magnetic circuit arrangement. In the ring array, the following variations are available depending on the combination of magnetization directions of the magnets. Shin-Etsu Chemical designs and manufactures both ring and linear Halbach array magnetic circuits.

Ring Array

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  Two poles (Dipole Ring)
  Magnetic Field Application Device

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  Four Poles
  Beam Focusing

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  Six Poles
  ECR Ion Source

For Linear Motors

• Halbach arrays are combined to generate a strong magnetic field in the gap.

  Industrial Application (Linear Motors)

  

• The magnetic field in the gap is optimized by adjusting the direction of magnetization of the magnets in the Halbach array.

  

  

2.Arrange magnets and yokes

Magnets

We select from neodymium (Nd) magnets, which are high-performance, and samarium (Sm) magnets, which have excellent temperature-related properties, to meet the customer’s specifications and operating environment requirements. We then apply various surface treatments to produce magnetic circuits and magnet assemblies.

Product (Magnet)

3.Magnetization/Assembly

Magnetizing Technology

Our magnetizing equipment maximizes the performance of the magnet.

Superconducting Magnetizer

We improve assembly productivity by magnetizing using a large magnetizing device compatible with 500mm after assembly.

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  Example of magnetic circuit magnetization analysis in a superconducting magnetizer.

Magnetization after Assembly

To improve process efficiency, magnetizing yokes are designed and manufactured for magnet circuits that can be magnetized after assembly.

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  Magnetizing Field Analysis

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  Magnetizing Yoke

Assembly Technology

• Coordinate Measuring Machine (CMM)

  

  Measures the dimensions of yokes and magnets.

• Helmholtz Coil

  

  Evaluates the magnetic moment and the inclination of magnetization of a magnet.

• Assembly Equipment

  

  During assembly, consideration is given to the forces of attraction and repulsion between magnets.

• Adhesion

  Adhesives are selected according to the operating environment and process. We can also handle customer-specified adhesives.

4.Measurement/Inspection

Measurement Technology

3D Magnetic Field Measuring Equipment

We use our three-dimensional magnetic field measuring equipment to measure and inspect the magnetic field distribution of magnetic circuits and magnet assemblies.

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  Large Three-Dimensional Magnetic Field Measurement Device.
  Supports measurement of areas up to 1 m.

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  Measurement Examples

3D Measurement Results

Measurements can be made in three-dimensional coordinates and magnetic field vector components.

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  Contour plot example from 3D magnetic field measurement results.
  Example of φ 400× 150 H area.

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  Vector diagram example from 3D magnetic field measurement results.