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Factory wholesale Bronze Strip - RTF ED Copper Foil – CIVEN

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Factory wholesale Bronze Strip - RTF ED Copper Foil – CIVEN Detail:

Product Introduction

Reverse treated electrolytic copper foil (RTF) is a copper foil that has been roughened to varying degrees on both sides. This strengthens the peel strength of both sides of the copper foil, making it easier to use as an intermediate layer for bonding to other materials. Moreover, the different levels of treatment on both sides of the copper foil make it easier to etch the thinner side of the roughened layer. In the process of making a printed circuit board (PCB) panel, the treated side of the copper is applied to the dielectric material. The treated drum side is rougher than the other side, which constitutes a greater adhesion to the dielectric. This is the main advantage over standard electrolytic copper. The matte side does not require any mechanical or chemical treatment prior to the application of photoresist. It is already rough enough to have good laminating resist adhesion.

Specifications

CIVEN can supply RTF electrolytic copper foil with nominal thickness of 12 to 35µm up to 1295mm width.

Performance

The high temperature elongation reversed treated electrolytic copper foil is subjected to a precise plating process to control the size of the copper tumors and distribute them evenly. The reversed treated bright surface of the copper foil can significantly reduce the roughness of the copper foil pressed together and provide sufficient peel strength of the copper foil. (See Table 1)

Applications

Can be used for high-frequency products and inner laminates, such as 5G base stations and automotive radar and other equipment.

Advantages

Good bonding strength, direct multi-layer lamination, and good etching performance. It also reduces the potential for short circuit and shortens the process cycle time.

Table 1. Performance

Classification

Unit

1/3OZ

(12μm)

1/2OZ

(18μm)

1OZ

(35μm)

Cu Content

%

min. 99.8

Area Weigth

g/m2

107±3

153±5

283±5

Tensile Strength

R.T.(25℃)

Kg/mm2

min. 28.0

H.T.(180℃)

min. 15.0

min. 15.0

min. 18.0

Elongation

R.T.(25℃)

%

min. 5.0

min. 6.0

min. 8.0

H.T.(180℃)

min. 6.0

Roughness

Shiny(Ra)

μm

max. 0.6/4.0

max. 0.7/5.0

max. 0.8/6.0

Matte(Rz)

max. 0.6/4.0

max. 0.7/5.0

max. 0.8/6.0

Peel Strength

R.T.(23℃)

Kg/cm

min. 1.1

min. 1.2

min. 1.5

Degraded rate of HCΦ(18%-1hr/25℃)

%

max. 5.0

Change of color(E-1.0hr/190℃)

%

None

Solder Floating 290℃

Sec.

max. 20

Pinhole

EA

Zero

Preperg

—-

FR-4

Note: 1. The Rz value of copper foil gross surface is the test stable value, not a guaranteed value.

2. Peel strength is the standard FR-4 board test value (5 sheets of 7628PP).

3. Quality assurance period is 90 days from the date of receipt.


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Factory wholesale Bronze Strip - RTF ED Copper Foil – CIVEN detail pictures


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As a way to finest meet up with client's wants, all of our operations are strictly performed in line with our motto "High Quality, Aggressive Price, Fast Service" for Factory wholesale Bronze Strip - RTF ED Copper Foil – CIVEN , The product will supply to all over the world, such as: Mexico, Norwegian, Kuwait, our qualify products have good reputation from the world as its most competive price and our most advantage of after-sale service to the clients.we hope we can provide a safe, environmental products and super service to our clients from all of the world and establish strategic partnership with them by our professional standards and unremitting efforts.
  • This is the first business after our company establish, products and services are very satisfying, we have a good start, we hope to cooperate continuous in the future!
    5 Stars By Deborah from Sydney - 2017.05.21 12:31
    It's really lucky to find such a professional and responsible manufacturer, the product quality is good and delivery is timely, very nice.
    5 Stars By Ann from Bolivia - 2017.03.08 14:45
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