Unique Flex Termination Methods
I think it is important to know that basically any connector you would select for rigid printed circuit boards can also be assembled to a flexible circuit. Traditional thru-hole and SMT connectors, high density circular connectors, D-subminiature connectors, pin and socket connectors, leaded and unleaded, are all options to consider with flexible materials.
That said, I am going to veer slightly off topic with the caution to NOT forget to review...