Rigid-flex boards are PCBs that have Flexible PCBs (FPC) and Rigid PCBs on the same board, which are commonly employed to save space, remove wiring assemblies and can also be welded with complex components. Combining other higher technology boards, such as HDI, as a part of its packaging, is also a common design.
Kinwong capabilities are as follows:
Rigid-flex with 2-16L rigid board and 1-6L flex board