Is the bend radius measured at the neutral axis?
We typically measure the bend radius on the inside of the bend, around an imaginary mandrel you would bending the circuit around. What are the pros and cons of using a flex circuit over a standard FR4 based printed circuit board? They are flexible, and that is really the biggest advantage. A rigid PCB is going to be considerable less expensive, so if your board does not have to operate in more than just the X and Y axis, you are going to want to go with a hardboard. Flex circuits are used when you need to link several hard boards together to make the interconnect and you don’t want bulky board to board connectors, and you don’t want wire harnesses. A common use for flex circuitry is to get connections from your main PCB board up to things like switches and connectors on the side of a panel. So typically if you are working in more than two axis, that is where the flex circuitry comes in. Does your company offer a design guide? Yes. Go to Flex Circuits Design Guide. Another piece of lite
