R&D

R&D Field

From the advanced basic materials to eco-friendly cars and
the components of renewable energy systems,
we move forward into world-class technology.

Metal Powders

Atomization

Atomization is a metal powder manufacturing process in which molten metal at high temperatures collides with a pressured medium (liquid or gas) to be scattered and then solidified. We apply the atomizing technique and plasma technique using the pressured medium to produce finer powder with high purity. Also, we have produced different types of powder for various applications by acquiring and applying a range of alloy powder manufacturing technologies.

Functional Metal Powders

We have developed a range of powders with various shapes such as spherical, flake, and dendrite by acquiring new coating technologies to respond to the rapidly increasing demand for EMI protection in advanced electronic components, such as electromagnetic shielding and noise removal. We are developing technology to precisely control the composition, content, and surface condition of coated layers, which allows these powders to provide the best performance when applied to advanced electronic components.

R&D Area
Ultrafine Cu and alloy powder Fe/Ni-based ultrafine materials High-function magnetic materials High-cleanliness alloy materials Functional filters Nanotechnology Alloy materials for 3D printing        
Technology
Ultrafine powder technology Particle shape control technology High-cleanliness powder manufacturing technology Composition control technology Metal, ceramic, and polymer coating technology Surface property control technology Dispersibility technology Plasma spheroidization and refinement technology    
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Magnetic Powder Cores

Chang Sung Corporation’s soft magnetic metal powder cores are vital components for a variety of electronic products, including IT devices. With years of experience in manufacturing raw materials and component processing technology, we are now focusing on designing and developing magnetic materials and components with excellent performance at high frequencies and large currents for the next generation power systems with high functionality (EVs, PV/fuel cell systems, etc.)

R&D Area
Soft Magnetic Metal Powder Core      
Technology
Ceramic insulation and coatings Pressing technology for high strength and high density Technology to develop new alloys Electromagnetic computing simulations    
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Coils

CSC’s coil products are used as inductors and high frequency transformers, which are indispensable for eco-friendly electric vehicles and the power converters of solar inverters. We are developing inductors using inhouse developed soft magnetic powder cores and magnetic paste, as well as compact/high-efficiency inductors for eco-friendly cars and low-loss high-frequency inductors for PV systems.

R&D Area Technology
Electrical
components
High current density inductor Heat dissipation structural design Concentrated winding technology
Solar inverter
Inductor with noise reduction Improved heat dissipation technology High efficiency inductor design technology
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Functional Pastes

In the low-temperature-curing paste field, continuous focus is placed on developing products with improved printability that can allow for a reduction in the line width of electrodes, highly-conductive products that can meet the demand for increasing the current density, and high-reliability products that result in less substrate deformation and a small variation in resistance according to the external environments.
The high-temperature-Sintering paste field retains its focus on developing paste products with high dispersibility, high printability, and low contractibility, which are essential to achieving a high stacking capability and the modularization of electronic parts, as well as substrate materials and high-reliability products that can replace solder products to meet the growing demand for electrical and electronic parts.
Also, attempts are being made in parallel to develop new materials that can replace expensive precious-metal fillers that have been applied thus far.

R&D Area Technology
Low-
temperature-
curing
paste
products
Low-resistance conductive paste manufacturing technology Technology that achieves the dispersibility of resin and fillers Technology that achieves adhesion with various substrates Stabilization technology for environmental properties
High-
temperature
-Sintering
paste
products    
Technology for controlling the sintering properties of metal powder Surface roughness control technology based on dispersibility control Glass frit manufacturing technology for each application field Microcircuit printing technology based on fluidity control    
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EMC

We are aiming to achieve total solutions for addressing electromagnetic wave and heat dissipation issues and have developed noise suppressors using various types of magnetic materials and addressed heat dissipation issues by applying high-temperature conductive fillers. We are now designing and developing a series of EMC products with outstanding shielding, conduction, and cooling performance.

R&D Area Technology
EMC
Technology to produce flake-shaped magnetic metal powder Combination of Polymer/Magnetics and Polymer/Conductive material Manufacturing technology to product thinner laminating film Design of far field absorber
TIM
A wide range of TIM sheets and liquid molding type products Combination of functions for different applications (heat dissipation + electromagnetic wave absorption) Eco-friendly filler materials with a higher heat conduction


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Clad Metals

Clad metal refers to a material where two or more different kinds of metals are bonded through pressure welding (hot, cold, and explosion).

1. HOT (WARM) PRESSURE WELDING

It is an approach where the bonded interface of materials is heated by electric resistance heat or by using a heating furnace to temperatures higher than their recrystallization temperature or softening temperature while also being subject to mechanical pressure so that the materials can be bonded. This method is applied when it is difficult to perform the plastic working process using the cold rolling process as in high-speed steel, or when the cold rolling may result in quality issues as in magnetic materials.

2. LOW PRESSURE WELDING

Here, materials are bonded using the continuous pressure-welding equipment (cold rolling equipment) without being heated. After the cold bonding process, those metals of different kinds are subject to diffusion annealing for further bonding.

R&D Area
Inlay Clad products (Skiving type) Overlay Clad products (Non-skiving type) Contact Tape products          
Technology
Interfacial diffusion layer control technology Skiving control technology Heat treatment control technology (Grain size) Precision thickness control technology Burr control technology through precision slitting Surface roughness control technology Oil residue amount control technology Precision location control technology    
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Powder Metallurgy

Sintered bearings are essential components for home appliances, office appliances, and IT technology, and especially for electronic and automotive parts. Our 35 years of accumulated technology has allowed us to develop high precision sintered bearings with micrometer level dimensional accuracy while providing a range of economic advantages and outstanding characteristics.
We are expanding our boundaries into heavy alloy fields such as anti-vibration bars, shielding materials with our high-density and high-strength sintered bearing manufacturing techniques and binder design technology for tungsten heavy alloys.
We are also developing the raw materials of the W-Cu alloys which have excellent thermal affinity with LED chips and outstanding heat dissipation performance to respond to the increasing demand for solutions to heat management issues associated with high-power LED applications.

R&D Area Technology
High-
precision
bearings
Raw powder and material design technology High-density forming technology High-precision mold design technology Process design and processing technology
Sintered
magnetic
parts
Raw powder and material design technology High-density forming technology High-temperature sintering technology
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