Copper foils, for the wide range of high frequency circuit substrates, are designed to provide optimum performance in high reliability applications.
There are various types of copper foil are offered; in a range of weights (thicknesses). Their characteristics differ, and an understanding of these differences is important to ensure the correct selection of copper foil for each application or environmental condition.
Thickness: 0.012-0.070 mm
Width: 5-520 mm
Length: 500-5000 M
ID: 76 mm,152 mm
1. the treated foil in gray or red
2. High peel strength
3. Good etch ability
4. Excellent adhesion to etching resist
1. Phenolic resin board
2. Epoxy board
Compare between CA copper foil and ED copper foil
1. Process: rolled copper foil (Rolling process),ED copper foil (Electrodeposition process)
2. Strength toughness: rolled copper foil is a flaky crystalline structure, so the strength and toughness is better than electrolytic copper foil, so most of the rolling copper foil used in flexible printed circuit boards.
3. Width: rolling copper foil width ≤ 620mm, electrolytic copper foil width ≤ 1380mm
4. Density: rolled copper foil higher density, the surface is relatively smooth, conducive to the production of printed circuit board after the rapid transmission of the signal, so high-frequency high-speed transmission, fine lines printed circuit board also used some calendering copper Foil.
5. Surface treatment width:rolled copper foil be limited by Surface treatment widest effective width of 520mm.
Q1: What's your guarantee?
A: All our products have 6 months guarantee after received goods, if any quality problem can contact us.
Q2: What's your delivery time ?
A: The common delivery time is 5-35 working days. The specific delivery time depends on the items and the quantity of your order.
Q3: What's your minimum order quantity?
A: The MOQ is 150 kg.
Q4: Can you supply the sample?
A: We can supply samples to check the quality before bulk order. But the price will be sample price not wholesale price.
Q5. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q6. what is your standard width?
A: 520mm and 620mm,we accept customization for the width. we can cut it into any size that you demand after pass discussing.
Typical properties of Standard copper foil for phenolic resin board and epoxy board.
|Nominal thickness||/||12um||1/2 OZ||3/4 OZ||
|Foil Profile||Shiny side (Ra)||սm||≤0.4||≤0.4||≤0.4||≤0.4||≤0.4||≤0.4||
1. Standard Width,1295(±1)mm,May according to the customer request tailor.
2. We test the peel strength with FR-4(Tg140) prepreg ,please reconfirm with your pp.