Flex PCB with PI Stiffener

Product Description：

Flex‍‌‍‍‌ PCB with Polyimide (PI) Stiffener is a highly reliable hybrid circuit board that integrates a thin, flexible base layer with a rigid area that is locally reinforced. The overall thickness of 1.6 mm makes it compatible with standard PCB thickness requirements and at the same time, the areas without the stiffener offer the bending functionality of a flexible circuit. The base FPC is only 0.1 mm thick, allowing for dynamic bending and compact designs. A 1.5 mm PI stiffener serves as a mechanical support for the placement of components, connector mating, or screw mounting.

The board surface is treated with OSP (Organic Solderability Preservative) – a lead-free, flat, and solderable surface which is excellent for fine-pitch SMT assembly. This design is ideal for cases where a certain level of structural rigidity is desired in selected zones while maintaining overall ‍‌‍‍‌flexibility.

Product Specifications

Product Advantages

• Ideal‍‌‍‍‌‍‌‍‍‌ Mechanical Aid - 1.5 mm PI stiffener acts as a solid support giving flat areas for connectors, heavy components, or mounting holes; thus, the need for separate rigid boards or metal brackets is eliminated.

• Gives Flexibility - 0.1 mm ultra-thin FPC core keeps fine dynamic flex life and bendability in non-stiffened parts, perfectly suitable for foldable or movable assemblies.

• Standard 1.6 mm Total Thickness - Same as the regular rigid PCB thickness, this makes working with current enclosures, edge connectors, and manufacturing tools much simpler.

• Thermally & Chemically Resistant - Polyimide stiffener can handle reflow temperatures up to 260°C and also features low moisture absorption, high dielectric strength, and resistance to fluxes and cleaning agents.

• OSP Surface Finish Benefits

• Flat, even surface – ideal for fine-pitch components (e.g., 0.4 mm pitch BGAs).

• Lead-free and RoHS compliant.

• Great solderability during assembly (short shelf life, but perfect for immediate or planned production).

• Lower in price than ENIG or immersion silver.

• Keep in mind Reliable Adhesion - The strong bond between FPC and PI stiffener stops the two layers from coming apart when exposed to thermal cycling, vibration, or mechanical shock.

• You can even tailor the shape of a stiffener and its position (for example only under a USB connector or around a mounting hole) to get the right balance of strength and flexibility to suit your particular ‍‌‍‍‌‍‌‍‍‌layout.

Company Profile:

Founded in 1997, Multech PCB is a leading manufacturer of high-end printed circuit boards in China with nearly 30 years of industry experience. Founded by senior PCB experts, the company's headquartered locates in Qianhai, Shenzhen, with its production base is located in Huizhou. It covers a workshop area of over 20,000 square meters and is equipped with multiple modern automated production lines, with an annual output exceeding 2 million square meters, capable of efficiently handling prototype, medium and high volume orders.

Boasting a professional R&D team of more than 60 members, the company focuses on technological innovation, specializing in high-density multilayer boards, HDI, backplane PCBs, high-frequency boards, metal core PCBs, flexible and rigid-flex PCBs and other special PCBs. 80% of its products are exported to Europe, the United States, Japan and the Asia-Pacific region, widely used in high-tech industries such as telecommunications, industrial control, medical treatment, automotive and aerospace.

The company has passed international authoritative certifications including ISO9001, ISO14001, UL, RoHS and IATF16949, with fully compliant production processes and 100% full inspection before shipment to ensure stable and reliable quality. It has long provided one-stop PCB+PCBA solutions for global well-known enterprises, winning the trust of customers at home and abroad with high quality, cost-effectiveness and prompt delivery.

ISO 13485

ISO 9001

IATF 16949

ISO 14001

Manufacturing Process:

FAQ:

Q:What files do you use in bare pcb fabrication?

A:Gerber RS-274X,274D,Eagle and AutoCAD's DXF,DWG

Q:What format of Bom List you prefer?

A:We prefer in MS-Excel with Components Part No.,Manufacturer,Quantity,Value info, other format are also accepted.

Q:How can i know the processing about my PCBA order?

A:Each Customer will have a sale to contact with you. Eastwin working hours: AM 9:00-PM 6:00(Beijing Time) from Monday to Friday. we will reply your email in 2hours during our working time. And you also could contact with our sales by cellphone if urgent.

Q:How long will we get the quotation after providing pcb gerber file,completed bom list,part datasheet and PNP file?

A: The quotation will be sent in less than 2 work days, for some special components, you also could recommend supplier to us.

Q:If all PCBAs will be tested before delivery if we provide the function testing method?

A:Yes, we ensure that each piece of PCBA will be tested before shipment, we ensure the goods we sent with good quality.