High-Frequency Properties

The MicroThin Series features 1.5–5 μm ultra-thin copper foil supported by a carrier foil. It is designed for high-density, fine-line circuitry formation in advanced electronic applications

High-performance materials for embedded capacitors, supporting improved electrical performance and higher circuit integration.

Advanced crystalize grain structure control technology delivers outstanding flexibility and durability, maintaining excellent performance even after repeated bending.

Advanced smooth surface treatment technology minimizes transmission loss in high-frequency signal applications to the greatest extent possible.

Mitsui Kinzoku's negative combines high contraction efficiency, flexible customization options, and a wide operating temperature range, delivering optimal performance across a broad range of applications.

Copper powder has excellent electrical and thermal conductivity and is one of the materials that underpin a wide range of industries, including those that use electronic materials and metallurgical powders.

Our division's metal products are used in a wide range of industrial sectors, including magnetic materials and hydrogen storage materials.

We offer a wide range of rare earth oxides and rare earth compounds.

Tantalum oxide/tantalum niobium carbide is a compound with a high melting point and corrosion resistance. We purify it to high purity by solvent extraction and supply it for electronic ceramics, cemented carbide tools, and optical lenses.