| Customization: | Available |
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| Type: | Flexible Circuit Board |
| Dielectric: | Polyimide |
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(Printed Circuit Boards are custom-made products, the picture and parameters shown are just for reference)
General Description
Our assembled flexible circuits are designed specifically for automotive applications, built on a polyimide substrate with connectors for USB wireless functionality. This product features a double-layer adhesive RA Copper (35μm) on a 25μm thick polyimide base material. The circuit is engineered to achieve 100 Ohm differential impedance, with track widths of 4.7mil and track separations of 7.9mil.
Two thicknesses of head stiffeners are used: one at 0.3mm FR-4 and another at 0.8mm FR-4 to support the connectors. The entire flexible circuit is devoid of silkscreen but features a yellow coverlay and immersion gold plating on the pads. Our base material is sourced from Shengyi SF202, and the boards are fabricated in accordance with IPC 6012 Class 2 standards using supplied Gerber data. Each shipment contains a pack of 80 pieces.
Features and Benefits
1.Excellent Flexibility: Allows for complex designs and adaptability in various applications.
2. Volume Reduction: Optimized for compact spaces, reducing overall product size.
Weight Reduction: Lightweight materials contribute to overall efficiency.
3.High Solderability: Minimizes stress on circuit boards and reduces contamination on PCB surfaces.
4. Quick and On-Time Delivery: With a 16,000 square meter workshop, we ensure timely service.
5.Extensive Experience: Over 20 years of expertise in PCB manufacturing.
Parameter and Data Sheet
| PCB Size: | 120 x 95mm = 1 PCS |
| Number of Layers | 2 layers |
| Board Type | Flexbile cirucit |
| Board Thickness | 0.2mm +/-10% |
| Board Material | Double layer adhesive RA Copper 35um, Polyimide 25um |
| Board Material Supplier | Shengyi |
| Tg Value of Board Material | 60ºC |
| PTH Cu thickness | 20 um |
| Inner Iayer Cu thicknes | N/A |
| Surface Cu thickness | 35 um (1oz) |
| Coverlay Colour | Yellow |
| Number of Coverlay | 2 |
| Thickness of Coverlay | 25 um |
| Stiffener | 0.3mm FR4+pure glue 0.8mm FR4+pure glue |
| Type of Silkscreen Ink | N/A |
| Supplier of Silkscreen | N/A |
| Color of Silkscreen | N/A |
| Number of Silkscreen | N/A |
| Minimum via (mm) | 0.3 |
| Minimum Trace (mil) | 4.7 |
| Minimum Gap(mil) | 7.9 |
| Impedance Control | 100 Ohm differential impedance with 4.7mil track and 7.9mil strak seperation |
| Surface Finish | Immersion Gold |
| RoHS Required | Yes |
| Famability | 94-V0 |
| Thermal Shock Test | Pass, -25ºC±125ºC, 1000 cycles. |
| Thermal Stress | Pass, 300±5ºC,10 seconds, 3 cycles. No delamination, no blistering. |
| Function | 100% Pass electrical test |
| Workmanship | Compliance with IPC-A-600H & IPC-6013C Class 2 |
| Type of artwork to be supplied | email file, Gerber RS-274-X, PCBDOC etc |
| Service area | Worldwide, Globally. |
Applications
Our flexible circuits are suitable for a variety of applications, including:
Industrial control temperature controllers
Automobile sensor flex boards
LED displays
Tablet PC modules
Laser head FPCs
Mobile phone built-in antenna FPCs
Contact belts for inkjet printers
Components of a Flexible Circuit
A flexible circuit consists of:
Copper Foil:Available in two types:
ED Copper: Electro-deposited copper foil with a treated surface for improved adhesion.
RA Copper: Rolled and annealed copper foil produced from cathode copper, offering different thickness options (12μm, 18μm, 35μm, 70μm).
Dielectric Substrate and Coverlay: Commonly made from polyimide films, which provide high temperature resistance, excellent electrical properties, and good chemical resistance, available in thicknesses of 12.5μm, 20μm, 25μm, and 50μm.
Adhesive Systems: Lamination of copper foil to flexible film is achieved using either thermoplastic or thermoset adhesives, depending on processing requirements and application needs.
Explore our assembled flexible circuits tailored for the automotive market, providing high reliability and functionality for your USB wireless applications. For more information or to discuss your specific requirements, please contact us!
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