Rigid-Flex PCB - Rigid-Flex PCB

In a world where electronics need to be slim, lightweight, and adaptable—from smartwatch bands to entry-level foldable devices—Rigid-Flex PCB stands out as a practical, reliable solution. Unlike high-density (HDI) variants, this board prioritizes everyday flexibility and broad application compatibility, merging the structural stability of FR-4 rigid sections with the bendable convenience of polyimide (PI) or polyester (PET) flex zones. Engineered to IPC-6018F standards, it cuts down on bulky wires, simplifies assembly, and fits into tight 3D layouts—all while keeping costs in check for consumer and industrial use cases.

Key Traits for Practical Use Cases

1. Material Choices Tailored to Your Budget & Environment

Flexible zones: Pick PI (heat-resistant >260℃) for devices that face mild heat (like automotive cabin sensors or medical thermometers) or PET (cost-saving, heat resistance up to 105℃) for everyday gadgets (e.g., wireless earbud charging cases).

Rigid zones: Use standard FR-4 (Tg≥140℃) for most setups, or upgrade to high-Tg FR-4 (Tg≥170℃) for industrial controllers—no need for expensive high-frequency laminates (unless you opt for optional Rogers for basic RF needs).

Rigid-Flex PCB

2. Flexible Design That Fits Tight Spaces

With 4–12 total layers (most often 4 rigid + 2 flexible), the board bends where you need it: flex zones (0.07–0.12mm thick) handle static bends (≥6× their thickness) for fixed 3D layouts (like wearable watch hinges) or dynamic bends (≥10× thickness) for 10,000+ cycles (e.g., foldable phone test models). No more forcing rigid boards into curved enclosures—this PCB adapts.

3. Proven Finishes for Common Assembly Needs

Choose from no-fuss surface treatments:

ENIG for corrosion resistance (great for medical monitors that need regular cleaning)

HASL (lead-free) for rugged industrial sensors

OSP for budget-friendly consumer gear (like basic fitness trackers)

Flex zones use thin copper (12–35μm) to stay bendable without losing conductivity.

Why It Works for Mainstream Applications

Saves space & weight: Cuts device size by up to 30% vs. wired rigid boards—critical for slim wearables or compact automotive control units.

Durable for daily use: PI flex zones last 100,000+ bends (tested at ≥10× thickness), so your product holds up to regular use (e.g., a foldable tablet’s daily opens/closes).

Wide temperature range: PI variants work from -40℃ (cold car winters) to +125℃ (warm industrial rooms), while PET handles -20℃ to +105℃ for indoor gadgets.

Perfect for These Everyday Innovations

Wearables: Smartwatches, fitness bands, AR glasses (flexible bands that connect rigid sensor modules).

Consumer Electronics: Entry-level foldable phones, wireless earbud cases, portable IoT hubs.

Medical Gear: Basic endoscopes, wearable heart monitors (biocompatible PI options).

Industrial/Automotive: Factory sensor wiring, automotive cabin controls (not high-heat engine parts).

Partner for Customized, Practical Solutions

Whether you’re building a wearable, a basic foldable device, or an industrial sensor, we tailor this Standard Rigid-Flex PCB to your needs—no overengineering, no extra costs. Pick your material, layers, and finish, and we’ll deliver a board that fits your design (and budget).