A manufacturing process for forming a flexible assembly suitable for a curved sensor or display including a stack of layers defining electrical control circuitry is presented. The flexible assembly has a curved configuration and comprises at least first and second components (4, 8) laminated together in a stressed configuration due to their curvature. While the assembly is in said curved configuration at least the first and second components (4, 8) are cut to obtain one or more edges which are aligned to each other.