| Classification | Unit | Requirement | Test Method | ||||
| Nominal thickness | um | 12 | 18 | 35 | 70 | IPC-4562A | |
| Area Weight | g/m² | 107±5 | 153± 7 | 285±10 | 585± 20 | IPC-TM-650 2.2.12 | |
| Purity | % | ≥99.8 | IPC-TM-650 2.3.15 | ||||
| Roughness | Shiny Side(Ra) | um | 4.0 | IPC-TM-650 2.2.17 | |||
| Matte side(Rz) | um | ≤5.0 | ≤6.0 | ≤8.0 | ≤10 | Optical Method | |
| Tensile Strength | R.T.(23°C) | Mpa | ≥276 | IPC-TM-650 2.4.18 | |||
| H.T.(180°C) | ≥138 | ||||||
| Elongation | R.T.(23°C) | % | ≥4 | ≥4 | ≥8 | ≥12 | IPC-TM-650 2.4.18 |
| H.T.(180°C) | ≥3 | ≥4 | ≥4 | ≥4 | |||
| Peel Strength(FR-4) | N/mm | ≥1.0 | ≥1.2 | ≥1.4 | ≥1.8 | IPC-TM-650 2.4.8 | |
| Lbs/in | ≥5.7 | ≥7.4 | ≥8.0 | ≥10.2 | |||
| Pinholes & Porosity | Number | No | IPC-TM-650 2.1.2 | ||||
| Anti-oxidization | R.T.(23°C) | Days | 90 | / | |||
| R.T.(200°C) | Minutes | 40 | / | ||||
Standard Width, 1295(±1)mm, Width range: 200-1340mm. May according to the customer request tailor.
