Rigid Flexible Circuits
Materials
Conductors
3 Layer Rigid Flex 0.5 oz Copper with HASL Finish
Copper is the most widely used conductor and comes in various thicknesses to meet each customer’s requirements. Conductor options include:
- Rolled annealed (RA) copper
- Electro deposited (ED) copper
Adhesives
Adhesive selection depends on customer needs and conductor thickness. Common adhesives include:
- Epoxy
- Acrylic
- Pre-preg
- Pressure sensitive (PSA)
- Adhesiveless base material
Insulators
Flexible substrate (base) and cover lay materials are available in a variety of thicknesses. Common insulators include:
- FR-4
- Polyimide
- Polyester, PEN and PET
- Solder mask
- Flexible solder mask
- Photo image-able cover lay (PIC)
Finishes
The final finish depends on each customer’s assembly requirements and the application of the finished product. Common finishes include:
4 layer Rigid Flex .5 oz Copper
Buried Vias Immersion Ni/AU
- Solder (Tin/Lead or RoHS compliant)
- Tin
- Immersion nickel/gold
- Hard nickel/gold
- Wire bondable gold
- Organic (entek or OSP)
- Silver
- Carbon
In summary, if you have rigid flex design needs, Flexible Circuit can help. For more in depth information, click on the links below:
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