Rigid-Flex boards are printed circuit boards that are formed by areas of rigid parts made of FR4 material linked together with areas of flexible parts made of polyamide material with different thicknesses.
a thin Rigid-Flex board polyamide of 0.1-0.3 mm with a rigid printed circuit on an FR4 substrate. These printed circuits are used more and more lately, having the advantage of their flexibility. A PCB may have an inscription or screen printing that identifies components, test points or identification text. Screen printing does not normally
would occupy the Rigid-Flex board space between the components. The increase in the need for multilayer printed circuit boards with more than two, four and especially more than six layers of copper has been concurrent with the adoption of surface mount technology. "Through holes" components are assembled by their legs
in ohms and makes it possible to measure the quality of copper tracks. The impedance is an alternating current (AC) characteristic that increases with frequency and becomes board Rigid-Flex critical for printed circuits operating at frequencies above 200 or 300 Mhz. Impedance calculator software is a good starting point to determine
