All of UACJ Foil’s copper foil is order made. We tailor our products to fit customer needs, including materials, measurements and material properties. Our reliable high-quality, high-grade copper foil is used in a variety of products such as cutting-edge electronics, high-end consumer appliances and luxury foods.
We constantly strive to create next-generation applications for copper foil using innovative ideas and solid R&D.
UACJ Foil offers world-quality, wide-sheet copper foil for FPC, batteries, electrical lines and other applications. Find out more about the advantages of UACJ Foil’s rolled copper foil.
|Tough Pitch Copper, Oxygen-free Copper|
|Measurements||Thickness: ultra-thin (4 μm and up)/Width: wide-sheet (up to 650 mm)|
- Electromagnetic wave shielding
- Printed circuit boards
- Lithium-ion battery
- Antibacterial copper foil application, etc.
Low-roughness Rolled Copper Foil
Using sophisticated rolling technologies accumulated over many years, UACJ Foil has developed rolled copper foil with minimal surface roughness. We can realize a surface roughness (surface roughness meter) of Rz 0.4 μm, allowing manufacture of fine pattern circuits.
- Available in surface roughness (surface roughness meter) as fine as Rz 0.4 μm.
- Suited for fine pattern circuits.
- Supports high frequencies (GHz), and suited for circuit patterns resistant to skin effect.
|Materials||Tough pitch copper|
|Surface processing||It will be provided as a single foil.We do not accept surface treatment.|
- Fine pattern/high frequency printed wiring boards, etc.
Mechanical/electrical characteristics (12 μm thickness)
|Tensile strength normal condition (MPa)||450|
|Stretchability normal condition (%)||1.4|
|Sample||SRM (Surface Roughness Meter)||AFM|
|Previous UACJ Foil rolled copper foil||0.7||0.09||0.4||0.31|
|Electrolytic copper foil M surface||1.5||0.27||1.2||0.26|
|Electrolytic copper foil S surface||1.8||0.33||1.3||0.27|