PCB - Rigid-flex pcb

Baselectron is qualified in Flex pcbs and Rigid-Flex pcbs too.
We can make Flex pcbs with FR4 material (0,10mm thickness) or with polyimide (25 or 50um thickness).
FR4 Flex pcbs have more limitations as polyimide Flex pcbs but they are cheaper than them.
About Rigid-Flex, they can be realized with polyimide with glued rigid stiffener or with multilayer technology (FR4+polyimide+FR4)

Note:
The printed circuits are also called differently depending on their characteristics, for example:

Single sided
Monolayer and Single side are different ways to identify a printed circuit with a single side or with a single layer of tracks.

Double sided
Double side and bilayer there are different ways to identify a printed circuit with dual sides or with the tracks on both surfaces.

Multilayer
Multilayer MLB are the names that are used to identify multilayer printed circuits with additional layers of internal tracks.

Solder
Solder resist or solder mask is what is called the usually green protective layer that limits the welding to only the pads and also leaves the comb connectors and mechanical contacts uncovered, it is often shortened to solder.