Product Information “Rigid – Flexible PCBs”
Rigid-flexible printed circuit boards directly combine the advantages of flexible and rigid printed circuit boards. This combination of technologies brings the user a variety of advantages especially in terms of signal transmission, overall size, assembly and stability. AT&S produces this technology in three of its plants, allowing it to offer a wide range of products and expertise.
In rigid-flexible printed circuit boards, AT&S offers:
- Printed circuit boards with rigid areas, and flexible areas with reduced numbers of layers
- Combination of polyimide and FR4, or FR4 and thin laminate
- Rigid-flexible printed circuit boards, which connect rigid boards without the need for cables or connectors, resulting in better signal transmission
- With SMD population and underfill
- All commonly used surfaces available
Technology Sheet
| Capabilities | Standard Production | Advanced Production |
|---|---|---|
| Layer Count / Technology | 2 Layer - 10 Layer | 2 Layer - 12 Layer |
| PCB Thickness Range | 75µm - 1600µm | 50µm - 2000µm |
| Materials | Polyimide / FR4 | Polyimide / FR4 |
| Thinnest Core | 50µm without Adhesive | 25µm without Adhesive |
| Copper Thickness | 9µm / 12µm / 18µm / 35µm | 9µm / 12µm / 18µm / 35µm |
| Copper Plating Holes | 20µm (25µm) | 13µm / 20µm / 25µm |
| Min. Line / Spacing | 125µm / 125µm | 65µm / 65µm ( LDI ) |
| Soldermask Registration | +/- 100µm (Photoimageable) | +/- 50µm (Photoimageable) |
| Min. Soldermask Dam | 100µm | 65µm |
| Soldermask Color | Amber (green) | Amber (green) |
| Cover Layer Polyimide | Laser cutting / punching / drilled | Laser cutting / punching / drilled |
| Production Panel | 609.6 mm x 457.2 mm 250 mm x (250 - 410 mm) | 609.6 mm x 457.2 mm 250 mm x (250 - 410 mm) |
| Min. Annular Ring | 150µm | 150µm |
| Smallest Drill | 0.28 mm | 0.2 mm |
| Smallest Routing Bit | 0.8 mm | 0.8 mm |
| Surfaces | OSP / Immersion Tin Immersion Ni/Au Plated Ni/Au | OSP/ Immersion Tin Immersion Ni/Au Plated Ni/Au |
| ID Print | White | White |
| Adhesive Tape | Yes | Yes |
| SMT Service | Yes | Yes |
| Stiffner Material | FR4 / Steel / Aluminium | FR4 / Steel / Aluminium |