
Use of LP Copper Foil.
Flexible Copper Clad Laminate with Casting and lamination type,Super fine pattern FPC,Chip on flex (COF) for LED,multilayer circuit boards.
Difference between rolled copper foil and electrolytic copper foil.
Performance is different ,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.Width different:: rolling copper foil width ≤ 620mm, electrolytic copper foil width ≤ 1380mm.
Classification | Unit | Requirement | Test Method | |||||
Foil Designation | / | 1 | H | M | 1 | IPC-4562A | ||
Nominal thickness | / | 10um | 12um | 1/2 OZ(18um) | 3/4 OZ(25um) | 1 OZ(35um) | IPC-4562A | |
Area Weight | g/㎡ | 98±4 | 107±4 | 153±5 | 228±8 | 285±10 | IPC-TM-650 2.2.12.2 | |
Purity | % | ≥99.8 | IPC-TM-650 2.3.15 | |||||
Foil Profile | Shiny side(Ra) | սm | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | IPC-TM-650 2.3.17 |
Matte side(Rz) | um | ≤4.0 | ≤4.5 | ≤5.5 | ≤6.0 | ≤8.0 | ||
Tensile Strength | R.T.(23℃) | Mpa | ≥260 | ≥260 | ≥280 | ≥280 | ≥280 | IPC-TM-650 2.3.18 |
H.T.(180℃) | Mpa | ≥180 | ≥180 | ≥180 | ≥180 | ≥180 | ||
Elongation | R.T.(23℃) | % | ≥5 | ≥6 | ≥8 | ≥10 | ≥12 | IPC-TM-650 2.3.18 |
H.T.(180℃) | % | ≥5 | ≥6 | ≥7 | ≥8 | ≥8 | ||
Peel Strength(FR-4) | N/mm | 0.7 | 0.8 | 1.0 | 1.1 | 1.2 | IPC-TM-650 2.4.8 | |
Ibs/in | 4 | 4.6 | 5.7 | 6.3 | 6.9 | |||
Pinholes&porosity | Number | No | IPC-TM-650 2.1.2 | |||||
Anti-oxidization | R.T.(23℃) | 180days | / | |||||
H.T.(200℃) | 60 Minutes | / |
Standard Width 1290mm,max width 1380(±1)mm,May according to the customer request.
JIMA Copper
Jima Copper is a professional supplier of high-precision copper and copper alloy series of foil roll brand. Jima provided 4-800μm thick copper foil, Maximum width 1580 mm, Jima copper foil production capacity is sufficient, with complete varieties, excellent quality.
Jima specializes in the research, development, promotion and application of new technology of rolling copper foil, and it is equipped with a research center of rolling copper foil engineering technology. Jima copper can stably provide various specifications of high-precision flat foil (hard foil, soft foil, semi-hard foil, etc.) and surface treatment foil (red dumb copper foil, black dumb copper foil, high corrosion resistance rolled copper foil, etc.). The products are widely used in electromagnetic shielding, heat dissipation, graphene conductive film production, aerospace, flexible copper plate, lithium battery, 5G communications, LED, intelligent vehicles, drones, wearable electronics and other fields, which is highly recognized and praised by customers. And it is exported to Korea, Japan, Germany, the United States, Russia, India and other countries.