Hybrid Adapter Flex Bridge Build Instructions
The rigid sections, top and bottom, are to be 12.6mil thick FR4/G10.
The flexible section is 8mil poly amide/Kapton.
Copper trace thickness is 1/2Oz./0.7mil.
Note: the bottom layer has no traces, only vias.
The flex section is to be sandwiched between the rigid end pieces where the total thickness will be ~40mils.