Copper Foil for Fine Pitch & High Frequency Performance “BHM Treatment”
Application Examples
![](/en/common/images/img_products_use_14_02.png)
![](/en/common/images/img_products_use_14_01.png)
Benefits for Customers
- BHM exhibits high frequency & fine pitch (under L/S=25/25µm) as well as good FPC reliability.
BHM can be applied with HA, HA-V2, HG, and JXEFL.
Image of L/S=20/20µm
Pitch Circuits
![](/en/common/images/img_products_43.png)
Performance of BHM Treatment for High-Speed Transmission
![](/en/common/images/img_products_44.png)
BHM treatment is excellent for high transfer speed applications due to its surface and low magnetic metal.
Resin:LCP
Features of BHM
- BHM is a treatment which can be etched faster and achieve a high etching factor (EF).
- The combination of BHM and HG base foil is the most suitable for leading-edge fine line applications.
- BHM achieves high-frequency performance by lessening the amount of magnetic metals. At the same time, BHM maintains good FPC reliability.
Mechanism of High Etching Factor (EF)
![](/en/common/images/img_products_45.png)
FPC reliability test of BHM treatment
![](/en/common/images/img_products_46.png)
BHM Treatment for FPC for High-Frequency & High-Speed Transmission
FAQ
-
What are examples of applications?
-
BHM surface treatment can be applied to Cu foils for FPC use. We have experience in high-frequency applications and fine-pitch circuit patterning uses.
-
What are the differences from competing products?
-
FPCs with this treatment enable a high etch factor and high-frequency performance.
-
What makes the treatment capable of performing its function?
-
BHM achieves high performance with smaller amounts of magnetic metals and lower surface roughness.
-
Can you provide samples?
-
Yes, we can provide stand-alone samples of copper foil, but please note that it will be used as part of a copper clad laminate in actual usage.