Low Profile Copper Foil Thickness 12um 18um 25um 35um 50um 70um
105um
Detail:
- Nominal Thickness:12um 18um 25um 35um 50um 70um 105um
- Wooden box package
- Standard Width: 1290mm, can be cutting as size request
- Length: Customized
- Sample can be supply
- Delivery: 10-20days
Features:
This foil is mainly used for multilayered PCBs and high-density
circuit boards, which require the surface roughness of the foil to
be lower than that of regular copper foil so that their
performances such as peeling resistance can remain at a high level.
It belongs to a special category of electrolytic copper foil with
roughness control. Compared with regular electrolytic copper foil,
the crystals of LP copper foil are very fine equiaxed grains
(<2/zm). They contain lamellar crystals instead of columnar
ones, while they feature flat ridges and a low level of surface
roughness. They have such merits as better size stability and
higher hardness.
- Low profile for FCCL
- High MIT
- Excellent etchability
- The treated foil is pink or black
Typical Application
Typical Properties of Low Profile Copper Foil
| Classification | Unit | Requirement | Test Method |
| Nominal thickness | um | 12 | 18 | 25 | 35 | 50 | 70 | 105 | IPC-4562A |
| Area Weight | g/m² | 107±5 | 153±7 | 225±8 | 285± 10 | 435±15 | 585± 20 | 870±30 | IPC-TM-650 2.2.12.2 |
| Purity | % | ≥99.8 | IPC-TM-650 2.3.15 |
| Roughness | Shiny side (Ra) | սm | ≤0.43 | IPC-TM-650 2.3.17 |
| Matte side(Rz) | um | ≤4.5 | ≤5.0 | ≤6.0 | ≤7.0 | ≤8.0 | ≤12 | ≤14 |
| Tensile Strength | R.T.(23°C) | Mpa | ≥207 | ≥276 | IPC-TM-650 2.4.18 |
| H.T.(180°C) | ≥138 |
| Elongation | R.T.(23°C) | % | ≥4 | ≥4 | ≥5 | ≥8 | ≥10 | ≥12 | ≥12 | IPC-TM-650 2.4.18 |
| H.T.(180°C | ≥4 | ≥4 | ≥5 | ≥6 | ≥8 | ≥8 | ≥8 |
| Resistivity | Ω.g/m² | ≤0.170 | ≤0.166 | | ≤0.162 | | ≤0.162 | ≤0.162 | IPC-TM-650 2.5.14 |
| Peel Strength(FR-4) | N/mm | ≥1.0 | ≥1.3 | | ≥1.6 | | ≥1.6 | ≥2.1 | IPC-TM-650 2.4.8 |
| Pinholes & Porosity | Number | / | / | No | IPC-TM-650 2.1.2 |
| Anti-oxidization | R.T.(23°C) | Days | / | / | 180 | / |
| H.T.(200°C) | Minutes | / | / | 30 | / |
Standard Width,1295(±1)mm, Width range:200-1340mm. May according to
the customer request tailor.
