Flex PCBs, also known as flexible printed circuits or flexible electronics, provide greater options for designers and engineers when assembling electronic circuits.
They are constructed from flexible, high-performance plastic material, usually polyimide, which permits the board to be bent (or flexed). This property of flexibility enables their use in a wide variety of applications. They can be built with stiffeners, to create areas that are not able to be bent. They are also used along with rigid pcb to create a rigid-flex assembly to give rigid PCB bendable qualities.
Below are some of the most common types of flex PCB construction:
- Single-sided flex pcb
- Back-bared flex circuits
- Double-sided flex pcbs
- Sculptured flex circuit board
- Multi-layer flex circuits
- Rigid flex pcb
Contact us to get your quote – If you aren’t sure about the specs of your board or if you are ready for us to create a custom quote for you, please email us your Gerber files along with lead time and quantity requirements.
FLEX PCB Capabilities and Tolerances
| PROPERTIES | ENGLISH | METRIC |
|---|---|---|
| Maximum Board Size | 19.68" x 13.38" | 500 x 340 mm |
| Maximum Board Thickness 1 (copper) layer 2 layers 4 layers | 8.5 mil 12.6 mil 16.5 mil | 0.22 mm 0.32 mm 0.42 mm |
| Min Board Thickness (4 Layers) | 11.8 mil | 0.300 mm |
| Minimum Board Thickness 1 (copper) layer 2 layers 4 layers | 2.5 mil 4.7 mil 11.8 mil | 0.065 mm 0.12 mm 0.30 mm |
| Maximum Number of Layers | 16 layers | |
| Minimum PTH (Plated Thru Hole) diameter | 0.0079" | 0.2 mm |
| Maximum aspect ratio | 10:1 (max. thickness 0.0066", min. PTH 0.0079") | 10:1 (max. thickness 2mm, min. PTH 0.2 mm) |
| Minimum Traces/Spaces | 0.002" / 0.002" | 0.05 mm / 0.05 mm |
| SURFACE FINISHES | |
|---|---|
| Lead Solder (HASL) | OSP (Entek) |
| Lead Free Solder (HASL) | Electrolysis gold plating |
| Immersion Gold (Electroless Nickel Gold - ENIG) | Immersion Tin (White Tin) |
| MATERIAL | |
|---|---|
| FR-4 | Teflon |
| FR-5 | Polyimide |
| Aluminum | BT |
Questions? If you have any questions or need further information, feel free to call us at 866-301-IPCB (4722) or Email Us
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