Oak-Mitsui is recognized as the technological leader in the manufacture of high-quality electrodeposited copper foils for the printed circuit board industry. With the strength of international scope, Oak-Mitsui produces both conventional cladding and application specific copper foils required by technology's leading edge companies.

At Oak-Mitsui, copper foils are electroformed on revolving titanium drums, unique for the ability to deposit copper foils with a high-quality surface. Electroformed foils are then subjected to a variety of surface treating operations contingent upon end-use requirements. During treating, copper dendrites are deposited onto the foil surface to enhance bonding to B-staged resins upon lamination. A "barrier-layer" is deposited for promoting reliability in thermal applications, specific proprietary organic layers are applied to promote chemical adhesion, and foils are stain-proofed to prevent oxidation in shipping, storage, lamination and post-bake cycles.

From conventional cladding through precision electroformed systems, there are Oak-Mitsui foils for most applications:

• High Temperature elongation (HTE) foils for multilayer packages.
• Very low profile (VLP) foils for thin dielectrics and fine-line applications.
• Double-treated foils (DBT) for the assurance of factory bond strength on both sides.
• High ductility(HD) foils for flexible circuitry.
• Sophisticated treatments for PTFE, Polyimide, and various high Tg resins.
• Engineered foil/treatment systems for customer specific applications.

MSDS MSDS- Cu Foil (49kb pdf) Conventional CCL/PCB Foils ML (pdf) MHT (pdf) MLS (pdf) MLS-TOC500 (pdf) MLS-MHT (pdf) TOB-III (pdf) TOC500 (pdf) Double Treated Foils DBT-III (pdf) MHT-DT (pdf) EMI/RF Shielding Foils PLSP (pdf) PLSP-SF (pdf)

Flex Application Foils 3EC-HTE (pdf) MLS-3EC-HTE (pdf) MLS-SF (pdf) TOB-HD (pdf) TOC-HD (pdf) Lithium Ion Battery Foils TLB-PLSP (pdf) TLB-SBS (pdf) TLB-SS (pdf) Ultra Thin Foils 3u MicroThin (pdf) 5u MicroThin (pdf) Very Low Profile Foils 3EC-VLP (pdf) SQ-VLP (pdf) Resin Coated Foils MRG-200 (pdf)

Download Adobe Acrobat Reader

For more information please contact us.

TOP