Multi-layer Flex Rigid PCB Manufacturers

A PCB is built from multiple functional layers stacked together. These typically include conductive copper layers (signal, power, and ground planes), substrate or core layers (such as FR4 or polyimide), prepreg bonding layers, solder mask layers, and a silkscreen layer. In multi-layer rigid-flex PCBs, flexible polyimide (PI) layers are integrated alongside rigid FR4 layers into a single interconnected structure, enabling three-dimensional routing and bend-flex functionality. SFX PCB supports configurations up to 20 total layers, including up to 12 flexible FPC layers.

A multi-layer flex rigid PCB is a hybrid circuit board that integrates flexible polyimide layers with rigid FR4 layers into a single interconnected structure. This design enables three-dimensional routing, reduces connector count, and allows the board to bend or fold, making it ideal for compact, high-reliability electronic assemblies in aerospace, medical, and consumer applications.

SFX PCB's rigid-flex PCBs support up to 20 total layers, including up to 12 flexible (FPC) layers. Layer configuration is customized based on your circuit complexity, routing density, and application requirements. Both single-sided and multilayer configurations are available across the full product range.

SFX PCB manufactures to IPC Class II and IPC-A-610 Class 2/3 standards with ISO 9001, ISO 14001, and ISO 13485 certified facilities. All boards undergo electrical testing, impedance testing, AOI, and dimensional inspection. RoHS and REACH compliant options are also available for global market requirements.

The primary materials used are Polyimide (PI) for the flexible sections and FR4 for the rigid sections. Premium substrate brands including Shengyi, DuPont, Taiflex, Rogers, and ITEQ are available. Rogers material is also supported for high-frequency RF applications requiring low dielectric loss.

Multi-layer rigid-flex PCBs are widely used in aerospace and defense (radars, night vision, avionics), medical devices (defibrillators, hearing aids, ultrasound equipment), automotive electronics (ABS systems, dashboards), telecommunications (smartphones, base stations), industrial automation, and wearable or IoT devices requiring miniaturized, reliable circuitry.

SFX PCB provides stack-up design analysis and pricing within 8–24 hours of receiving your PCB Gerber files and specifications. You can submit files via the online enquiry form or email info@sfxpcb.com. WhatsApp support is also available for faster preliminary communication before formal submission.