Single sided flexible pcb

How many layer can a flexible PCB be ?

Maximum 6 layers for flexible PCB.

How copper thichness can a flexible PCB be ?

2oz,only some flexible led PCBs like heavy copper,the best advantage of flexible PCB is flex,if too much copper,willnot be easy to bent for your device.

How big size can a flexible PCB be ? 

Flexible PCB material:maximum width is 250mm,because flexible PCB material is a roll,each roll width is 250mm,the length is no limit,so when you design flexible PCB,one side should be less than 250mm,the other side no care .

How thickness can a flexible PCB be ?

0.1mm - 0.2mm,some flexible PCB can be 0.3mm .

Applications:

LED and Lighting equipments

Smart mobile phone

Medical equipments

Aerospace product

Instrumentation